U.S.S. ABBOT  ⭑  DD 629

Dictionary Search Results

All terms:

1st Dog

glossary:  4 p.m. to 6 p.m. (1600 to 1800 on the deck logs).

1st Night

glossary:  8 p.m. to midnight (2000 to 0000 on the deck logs, though the watch itself is labeled 20 to 24 on the deck logs).

20mm

glossary:  20 millimeter guns.

2F

abbreviation:  Two-seater Fighter Aircraft (Naval)

2nd Dog

glossary:  6 p.m. to 8 p.m. (1800 to 2000 on the deck logs).

3SR

abbreviation:  Internal Delivery Teletype (intra-ship)

40mm

glossary:  Twin Bofors 40 millimeter guns. There were five such guns, numbered 41 thru 45, on Fletcher-class destroyers. 41 and 42 were just forward of the bridge; 43 and 44 were amidships, next to the second smoke stack; and 45 was between five inch guns 3 and 4.

5”/38

glossary:  Five-inch 38 caliber projectiles fired from the largest guns of a Fletcher-class destroyer. On Abbot there were five such guns numbered 1 through 5. Guns 1 and 2 were forward on the ship. Guns 3, 4 and 5 were aft. These guns had the longest effective firing range.

A-2

abbreviation:  Air Intelligence (War Department)

A-bomb

abbreviation:  Atom bomb

A-C

abbreviation:  Allis Chalmers (ship engines)

A-Day

abbreviation:  Day on which atom bomb was tested at Bikini (Operation Crossroads), 1 July 1946

A-V(G)

abbreviation:  USNR aviation officers holding designation as naval aviators, qualified for general detail afloat or ashore. This classification was abolished in September 1944 and replaced by one of the following: (A3), (A3)L, (A4)L, S (A3), or S(A4).

A-V(N)

abbreviation:  USNR aviation flight officers, detailed to active duty in the aeronautic organization of the Navy immediately following their completion of training and designation as naval aviators.This classification was abolished in September 1944 and replaced by one of the following: (A1), (A1)-L, (A2), (A2L), S(A1), or S(A2).

A-V(RS)

abbreviation:  USNR aviation officers, commissioned and warrant, including radio electricians, qualified for specialist duties. This classification was abolished in September 1944 and replaced by the proper aviation or engineering classification with the suffix "T".

A-V(S)

abbreviation:  USNR aviation officers, commissioned and warrant, including gunners, radio electricians, machinists, aerographers, and photographers, qualified for specialist duties. This classification was abolished in September 1944 and replaced by one of the following: (A), (A)L, (D), (D)L, (AD), (S), or S(A).

A-V(T)

abbreviation:  USNR aviation officers, former civil aviation pilots or aviators of the Army, Navy, Marine Corps or Coast Guard, qualified for specialist duties. This classification was abolished in September 1944 and replaced by one of the following: (A5), (A5)L, (A6), (A6)L, S(A5), or S(A6).

A. L.

blueprints:  Accommodation Ladder.

A. P.

blueprints:  After Perpendicular.

A. S.

blueprints:  Angle Stiffener

A/a

abbreviation:  Analysis of accounts

A/c

abbreviation:  Accounts

A/C

abbreviation:  Aircraft

A/D

abbreviation:  Airdrome

A/J

abbreviation:  Anti-Jamming (radar)

A/P

abbreviation:  Airplane

A/S

abbreviation:  Anti-Submarine

A/SEE

abbreviation:  Anti-Submarine Experimental Establishment

A/SFDO

abbreviation:  Anti-Submarine Fixed Defenses Officer

A/T

abbreviation:  Anti-Torpedo (Nets)

A/T

abbreviation:  Attack teacher

A&I

abbreviation:  Alteration and Improvement Program

A&R

abbreviation:  Assembly and Repair

A&WI

abbreviation:  Atlantic and West Indies

A

abbreviation:  3-drum, express type (boiler)

A

abbreviation:  Acting (following Navy Chief’s rating); e.g., CAOMA (Chief Aviation Ordnanceman Acting)

A

abbreviation:  Air

A

abbreviation:  Allied Aviation Corporation (manufacturer’s symbol)

A

abbreviation:  Amphibious plane (suffix to plane designation) as: PBY-6A

A

abbreviation:  Army

A

abbreviation:  Arresting Gear (suffix to plane designation) as: SOC-3A

A

abbreviation:  Asiatic

A

abbreviation:  Auxiliary

A

abbreviation:  Brewster Aeronautical Corporation (manufacturer’s symbol)

A

abbreviation:  Noorduyn Aviation, Ltd. (manufacturer’s symbol)

A

abbreviation:  Plane built for Army Air Forces (suffix to plane designation) as: SBD-3A

A

abbreviation:  USNR officer designation for General Service, Aviation Non-flying. Formerly (A)

A1

abbreviation:  USNR officer designation for General Service, Heavier than Air Pilot. Formerly A-VN and (A1)

A1D

abbreviation:  USNR officer designation. Same as A1, plus qualified in deck duties. Formerly (A1D).

A1DN

abbreviation:  USNR officer designation. See A1D and N. Formerly (A1D)-N.

A1DR

abbreviation:  USNR officer designation. See A1D and R. Formerly (A1D)-R.

A1DT

abbreviation:  USNR officer designation. See A1D and T. Formerly (A1D)-T.

A1DX

abbreviation:  USNR officer designation. See A1D and X. Formerly (A1D)-X.

A1L

abbreviation:  USNR officer designation. Limited General Service, Heavier than Air Pilot. Formerly A-VN.

A1LN

abbreviation:  USNR officer designation. See A1L and N. Formerly (A1)L-N.

A1LR

abbreviation:  USNR officer designation. See A1L and R. Formerly (A1)L-R.

A1LT

abbreviation:  USNR officer designation. See A1L and T. Formerly (A1)L-T.

A1LX

abbreviation:  USNR officer designation. See A1L and X. Formerly (A1)L-X.

A1N

abbreviation:  USNR officer designation. See A1 and N. Formerly (A1)-N.

A1Pac

abbreviation:  A dispatch to all Army, Navy and Marine Commands in the Pacific Ocean Areas

A1Pac

abbreviation:  A dispatch to all commands and personnel in the Pacific Ocean Areas

A1R

abbreviation:  USNR officer designation. See A1 and R. Formerly (A1)-R.

A1T

abbreviation:  USNR officer designation. See A1 and T. Formerly (A1)-T.

A1X

abbreviation:  USNR officer designation. See A1 and X. Formerly (A1)-X.

A2

abbreviation:  Command Staff Intelligence Office (USMC)

A2

abbreviation:  USNR officer designation for General Service, lighter than Air Pilot. Formerly (A2) and A-VN.

A2D

abbreviation:  USNR officer designation. Same as A2 and D. Formerly (A2D).

A2DN

abbreviation:  USNR officer designation. See A2D and N. Formerly (A2D)-N.

A2DR

abbreviation:  USNR officer designation. See A2D and R. Formerly (A2D)-R.

A2DT

abbreviation:  USNR officer designation. See A2D and T. Formerly (A2D)-T.

A2DX

abbreviation:  USNR officer designation. See A2D and X. Formerly (A2D)-X.

A2L

abbreviation:  USNR officer designation. Limited General Service, Lighter than Air Pilot. Formerly (A2)L and A-VN.

A2LN

abbreviation:  USNR officer designation. See A2L and N. Formerly (A2)L-N.

A2LR

abbreviation:  USNR officer designation. See A2L and R. Formerly (A2)L-R.

A2LT

abbreviation:  USNR officer designation. See A2L and T. Formerly (A2)L-T.

A2LX

abbreviation:  USNR officer designation. See A2L and X. Formerly (A2)L-X.

A2N

abbreviation:  USNR officer designation. See A2 and N. Formerly (A2)-N.

A2R

abbreviation:  USNR officer designation. See A2 and R. Formerly (A2)-R.

A2T

abbreviation:  USNR officer designation. See A2 and T. Formerly (A2)-T.

A2X

abbreviation:  USNR officer designation. See A2 and X. Formerly (A2)-X.

A3

abbreviation:  USNR officer designation for General Service, Heavier than Air Pilot. Formerly (A3) and A-VG

A3D

abbreviation:  USNR officer designation. Same as A3 and D. Formerly (A3D).

A3DN

abbreviation:  USNR officer designation. See A3D and N. Formerly (A3D)-N.

A3DR

abbreviation:  USNR officer designation. See A3D and R. Formerly (A3D)-R.

A3DT

abbreviation:  USNR officer designation. See A3D and T. Formerly (A3D)-T.

A3DX

abbreviation:  USNR officer designation. See A3D and X. Formerly (A3D)-X.

A3L

abbreviation:  USNR officer designation. Limited General Service, Heavier than Air Pilot. Formerly (A3)L and A-VG.

A3LN

abbreviation:  USNR officer designation. See A3L and N. Formerly (A3)L-N.

A3LR

abbreviation:  USNR officer designation. See A3L and R. Formerly (A3)L-R.

A3LT

abbreviation:  USNR officer designation. See A3L and T. Formerly (A3)L-T.

A3LX

abbreviation:  USNR officer designation. See A3L and X. Formerly (A3)L-X.

A3N

abbreviation:  USNR officer designation. See A3 and N. Formerly (A3)-N.

A3R

abbreviation:  USNR officer designation. See A3 and R. Formerly (A3)-R.

A3T

abbreviation:  USNR officer designation. See A3 and T. Formerly (A3)-T.

A3X

abbreviation:  USNR officer designation. See A3 and X. Formerly (A3)-X.

A4

abbreviation:  USNR officer designation for General Service, Lighter than Air Pilot. Formerly (A4) and A-VG

A4D

abbreviation:  USNR officer designation. Same as A4 and D. Formerly (A4D).

A4DN

abbreviation:  USNR officer designation. See A4D and N. Formerly (A4D)-N.

A4DR

abbreviation:  USNR officer designation. See A4D and R. Formerly (A4D)-R.

A4DT

abbreviation:  USNR officer designation. See A4D and T. Formerly (A4D)-T.

A4DX

abbreviation:  USNR officer designation. See A4D and X. Formerly (A4D)-X.

A4L

abbreviation:  USNR officer designation. Limited General Service, Lighter than Air Pilot. Formerly (A4)L and A-VG.

A4LN

abbreviation:  USNR officer designation. See A4L and N. Formerly (A4)L-N.

A4LR

abbreviation:  USNR officer designation. See A4L and R. Formerly (A4)L-R.

A4LT

abbreviation:  USNR officer designation. See A4L and T. Formerly (A4)L-T.

A4LX

abbreviation:  USNR officer designation. See A4L and X. Formerly (A4)L-X.

A4N

abbreviation:  USNR officer designation. See A4 and N. Formerly (A4)-N.

A4R

abbreviation:  USNR officer designation. See A4 and R. Formerly (A4)-R.

A4T

abbreviation:  USNR officer designation. See A4 and T. Formerly (A4)-T.

A4X

abbreviation:  USNR officer designation. See A4 and X. Formerly (A4)-X.

A5

abbreviation:  USNR officer designation for General Service, Heavier than Air Pilot. Formerly (A5) and A-VT

A5D

abbreviation:  USNR officer designation. Same as A6t plus qualified in deck duties. Formerly (A5D).

A5DN

abbreviation:  USNR officer designation. See A5D and N. Formerly (A5D)-N.

A5DR

abbreviation:  USNR officer designation. See A5D and R. Formerly (A5D)-R.

A5DT

abbreviation:  USNR officer designation. See A5D and T. Formerly (A5D)-T.

A5DX

abbreviation:  USNR officer designation. See A5D and X. Formerly (A5D)-X.

A5L

abbreviation:  USNR officer designation. Limited General Service, Lighter than Air Pilot. Formerly (A5)L and A-VT.

A5LN

abbreviation:  USNR officer designation. See A5L and N. Formerly (A5)L-N.

A5LR

abbreviation:  USNR officer designation. See A5L and R. Formerly (A5)L-R.

A5LT

abbreviation:  USNR officer designation. See A5L and T. Formerly (A5)L-T.

A5LX

abbreviation:  USNR officer designation. See A5L and X. Formerly (A5)L-X.

A5N

abbreviation:  USNR officer designation. See A5 and N. Formerly (A5)-N.

A5R

abbreviation:  USNR officer designation. See A5 and R. Formerly (A5)-R.

A5X

abbreviation:  USNR officer designation. See A5 and X. Formerly (A5)-X.

A6

abbreviation:  USNR officer designation for General Service, Lighter than Air Pilot. Formerly (A6) and A-VT

A6D

abbreviation:  USNR officer designation. A6 plus qualified in deck duties. Formerly (A6D).

A6DN

abbreviation:  USNR officer designation. See A6D and N. Formerly (A6D)-N.

A6DR

abbreviation:  USNR officer designation. See A6D and R. Formerly (A6D)-R.

A6DT

abbreviation:  USNR officer designation. See A6D and T. Formerly (A6D)-T.

A6DX

abbreviation:  USNR officer designation. See A6D and X. Formerly (A6D)-X.

A6L

abbreviation:  USNR officer designation. Limited General Service, Lighter than Air Pilot. Formerly (A6)L and A-VT.

A6LN

abbreviation:  USNR officer designation. See A6L and N. Formerly (A6)L-N.

A6LT

abbreviation:  USNR officer designation. See A6L and T. Formerly (A6)L-T.

A6LX

abbreviation:  USNR officer designation. See A6L and X. Formerly (A6)L-X.

A6N

abbreviation:  USNR officer designation. See A6 and N. Formerly (A6)-N.

A6R

abbreviation:  USNR officer designation. See A6 and R. Formerly (A6)-R.

A6X

abbreviation:  USNR officer designation. See A6 and X. Formerly (A6)-X.

AA or A/A

abbreviation:  Anti-Aircraft

AA-1

abbreviation:  Normal Top Priority

AA-2

abbreviation:  Next highest degree of priority

AA-3

abbreviation:  Next highest degree of priority

AA-4

abbreviation:  Next highest degree of priority

AA/B

abbreviation:  Anti-Aircraft Balloon

AA&A

abbreviation:  Armor, Armament and Ammunition (cf. IRNV)

AA

abbreviation:  Acting Appointment

AA

abbreviation:  Arlington Annex (Navy Department)

AA

abbreviation:  Auxiliary Ships

AAA

abbreviation:  Anti-Aircraft Artillery

AAA

abbreviation:  Emergency top priority rating for individual items of extreme urgency

AAAIS

abbreviation:  Anti-Aircraft Artillery Intelligence Service (Army)

AAB

abbreviation:  Aircraft Accident Board

AAC

abbreviation:  Anti-Aircraft Common

AACS

abbreviation:  Army Airways Communications System

AAE

abbreviation:  Army Aviation Engineers

AAF

abbreviation:  Army Air Forces

AAFIS

abbreviation:  Army Air Forces Intelligence School

AAFMTO

abbreviation:  Army Air Force headquarters, Mediterranean Theater of Operations

AAFPOA

abbreviation:  Army Air Forces, Pacific ocean Areas

AAFPOAAdmin

abbreviation:  Army Air Forces, pacific Ocean Areas (Administrative)

AAHA

abbreviation:  Awaiting Action of Higher Authority

AAHQ

abbreviation:  Allied Air Headquarters

AAI

abbreviation:  Allied Armies in Italy

AAIC

abbreviation:  Allied Air Intelligence Center

AAMG

abbreviation:  Anti-Aircraft Machine Gun

AAPIU

abbreviation:  Allied Aerial Photographic Interpretation Unit

AAQM

abbreviation:  Acting Assistance Quartermaster (USMC)

AAR

abbreviation:  Aircraft Accident Record

AAT&TC

abbreviation:  Anti-Aircraft Training & Test Center

AATB

abbreviation:  Advanced Amphibious Training Base

AATC

abbreviation:  Anti-Aircraft Training Center

AATraCen

abbreviation:  Anti-Aircraft Training Center

AB or A/B

abbreviation:  Air Base

AB or A/B

abbreviation:  Airborne

AB

abbreviation:  Aerial burst bombs

AB

abbreviation:  Air Bomber

AB

abbreviation:  Archivist

AB

abbreviation:  Artist

AB

abbreviation:  Ballistic and Test Firing Expert

AB

abbreviation:  Crane Ship

abaft

nautical:  Toward the stern of a ship; back; behind; back of; further aft than.

ABATU

abbreviation:  Advanced Base Aviation Training Unit

ABC-1

abbreviation:  Report of the Combined British, Canadian and United States Staff Conversations

ABC

abbreviation:  American, British, Canadian Plans

ABCA

abbreviation:  Army Bureau of Current Affairs (GB)

ABCCTC

abbreviation:  Advanced Base Combat Communication Training Center (Pearl Harbor)

ABCD

abbreviation:  Advanced Base Construction Depot

ABD

abbreviation:  Admiralty Berthing Officer

ABD

abbreviation:  Advanced Base Depot

ABD

abbreviation:  Advanced Base Dock

ABDA

abbreviation:  American-British-Dutch-Australian Command (1942)

ABDACOM

abbreviation:  Advanced Base Depot Area Command

ABDACOM

abbreviation:  American-British-Dutch-Australian Supreme Command (1942)

ABDAFLOAT

abbreviation:  American-British-Dutch-Australian Naval Operational Command (1942)

ABDAIR

abbreviation:  American-British-Dutch-Australian Air Operational Command (1942)

ABDARM

abbreviation:  American-British-Dutch-Australian Army Operational Command (1942)

abeam

nautical:  At right angles to the keel.

ABF

abbreviation:  Aircraft Battle Force

ABG

abbreviation:  Air Base Group

Able

abbreviation:  "A" in the phonetic alphabet

Able

abbreviation:  Term used by shore-based ADCCs for "experimental" or "calibration"

ABM

abbreviation:  Aviation Boatswain’s Mate

ABMAG

abbreviation:  Aviation Boatswain’s Mate, Arresting Gear and Barriers

ABMCP

abbreviation:  Aviation Boatswain’s Mate, Catapult

ABMGA

abbreviation:  Aviation Boatswain’s Mate, Gasoline System

ABMPH

abbreviation:  Aviation Boatswain’s Mate, Plane Handler

aboard

nautical:  On or in a ship.

ABOne

abbreviation:  Air Bases Command, 1st Naval District

ABP

abbreviation:  Auxiliary Barracks Ship

ABPA

abbreviation:  Advanced Base Personnel Administration

ABPG

abbreviation:  Advanced Base Proving Ground

ABPO

abbreviation:  Advanced Base Personnel Officer

ABPU

abbreviation:  Advanced Base Personnel Unit

ABQ

abbreviation:  Admiralty Berthing Officer (GB)

ABR

abbreviation:  Amphibian Boat Reconnaissance Aircraft

ABRB

abbreviation:  Advanced Base Receiving Barracks

ABRD

abbreviation:  Advanced Base Repair Depot

ABRD

abbreviation:  Advanced Base Reshipment Depot

abreast

nautical:  Side by side; over against; opposite to.

ABSD

abbreviation:  Advanced Base Sectional Dock

ABSD

abbreviation:  Advanced Base Supply Depot

ABTF

abbreviation:  Airborne Task Force

ABTU

abbreviation:  Advanced Base Torpedo Unit

ABTU

abbreviation:  Advanced Base Training Unit

ABTU

abbreviation:  Air Bombers Training Unit

AC (number)

abbreviation:  Admiral Commanding (number) Aircraft Carrier Squadron

AC&W

abbreviation:  Air Communications and Weather (Group)

AC

abbreviation:  Air Corps

AC

abbreviation:  Alternating Current

AC

abbreviation:  Amphibious Corps

AC

abbreviation:  Collier

AC

abbreviation:  Symbol for hydrocyanic acid

ACA

abbreviation:  American Communication Association

ACA

abbreviation:  Physically on board awaiting combat assignment

ACAC

abbreviation:  Allied Container Advisory Committee

ACAF

abbreviation:  Amphibious Corps, Atlantic Fleet

ACAS(1)

abbreviation:  Assistant Chief of Staff, War Department (US) (Intelligence)

ACBMAG

abbreviation:  Aviation Chief Boatswain’s Mate, Arresting Gear and Barriers

ACBMCP

abbreviation:  Aviation Chief Boatswain’s Mate, Catapult

ACBMGA

abbreviation:  Aviation Chief Boatswain’s Mate, Gasoline System

ACBMPH

abbreviation:  Aviation Chief Boatswain’s Mate, Plane Handler

ACC

abbreviation:  Air Center Commander

ACC

abbreviation:  Allied Control Commission (Italy)

accommodation ladder

nautical:  Stairs slung at the gangway, leading down the vessel’s side to a point near the water, for ship access from small boats.

ACD

abbreviation:  Admiralty Chart Depot (GB)

ACDU

Bureau of Personnel Condensation Code:  Active Duty

ACEM

abbreviation:  Aviation Chief Electrician’s Mate

ACEORP

abbreviation:  Automotive and Construction Equipment Overhaul and Repair Plant

ACEPD

abbreviation:  Automotive and Construction Equipment Part Depot

ACFC

abbreviation:  Aviation Chief Fire Controlman

ACG

abbreviation:  Airborne Coordinating Group

ACGM

abbreviation:  Aircraft Carrier General memorandum

ACI

abbreviation:  Air Combat Intelligence

ACIC

abbreviation:  Allied Captured Intelligence Center (US & GB)

ACIC

abbreviation:  Auxiliary Combat Information Center

ACINS

Bureau of Personnel Condensation Code:  Active duty under instruction

ACIO

abbreviation:  Air Combat Intelligence Office(r)

ACK

abbreviation:  Acknowledge

ACk

abbreviation:  Assistant Cook

Acknowledge

orders:  When a message is received over I.C. system it must be acknowledged at once, i.e. "Foc’s’le aye, aye".

ACM

abbreviation:  Auxiliary Mine Layer

ACM

abbreviation:  Aviation Chief Metalsmith

ACMF

abbreviation:  Air Corps Medical Forces

ACMF

abbreviation:  Allied Central Mediterranean Forces

ACMM

abbreviation:  Aviation Chief Machinist’s Mate

ACMMC

abbreviation:  Aviation Chief Machinist’s Mate, Carburetor Mechanic

ACMMF

abbreviation:  Aviation Chief Machinist’s Mate, Flight Engineer

ACMMH

abbreviation:  Aviation Chief Machinist’s Mate, Hydraulic Mechanic

ACMMI

abbreviation:  Aviation Chief Machinist’s Mate, Instrument Mechanic

ACMMP

abbreviation:  Aviation Chief Machinist’s Mate, Propellor Mechanic

ACMMT

abbreviation:  Aviation Chief Machinist’s Mate, Gas Turbine Mechanic

ACNB

abbreviation:  Australian Commonwealth Naval Board

ACNO(T)

abbreviation:  Assistant Chief of Naval Operations (Transportation)

ACNO

abbreviation:  Assistant Chief of Naval Operations

ACofS

abbreviation:  Assistant Chief of Staff (Army)

ACOM

abbreviation:  Aviation Chief Ordnanceman

ACOMT

abbreviation:  Aviation Chief Ordnanceman, Turret Mechanic

Acorn

abbreviation:  An airfield assembly designed to construct, operate and maintain an advanced land plane and seaplane base and provide facilities for operations

ACP

abbreviation:  Admiralty Civil Police (GB)

ACPF

abbreviation:  Amphibious Corps, Pacific Fleet (USMC)

ACR

abbreviation:  Aircraft Control Room

ACRM

abbreviation:  Aviation Chief Radioman

ACRT

abbreviation:  Aviation Chief Radio Technician

ACS

abbreviation:  Alaskan Communications System

ACSEA

abbreviation:  Air Command, Southeast Asia

ACT/IC

abbreviation:  Active-In Commission (vessel status)

ACT/IS

abbreviation:  Active-In Service (vessel status)

ACT/OC

abbreviation:  Active-Out of Commission (vessel status)

ACT/OS

abbreviation:  Active-Out of Service (vessel status)

ACT

abbreviation:  Acting

ACT

abbreviation:  Action

ACT

abbreviation:  Aviation Classification Test

ACTG

abbreviation:  Advance Carrier Training Group

Action starboard (port)

orders:  Command from either Conn or Control to train out directors and guns and form an ammunition train, given when target is first sighted or suspected. Applies also to torpedo directors and tubes.

ACTPC

abbreviation:  Acting Pay Clerk

ACTREP

abbreviation:  Activities Report (shipping)

ActSecNav

abbreviation:  Acting Secretary of the Navy

ACTY

abbreviation:  Activity

ACV

abbreviation:  Aircraft Carrier, Escort (GB)

ACV

abbreviation:  Auxiliary Aircraft Carrier or Tender

AD

abbreviation:  Active Duty

AD

abbreviation:  Air Depot

AD

abbreviation:  Destroyer Tender

AD

abbreviation:  USNR officer designation. See A and D. Formerly (AD).

ADC

abbreviation:  Aide-de-camp (Army)

ADCASHAL

Bureau of Personnel Condensation Code:  Advance men cash allowance for quarters and subsistence in accordance with current Bureau of Naval personnel Circular Letter

ADCC

abbreviation:  Air Defense Control Center

AdCom or AdComd

abbreviation:  Administrative Command

AdCominPac

abbreviation:  Administrative Command, Minecraft, Pacific Fleet

AdComPhibsPac

abbreviation:  Administrative Command, Amphibious Forces, Pacific Fleet

AdComSubordComPhibsPac

abbreviation:  Administrative Command, Amphibious Forces, Pacific Fleet, Subordinate Command

ADCON

abbreviation:  Advise all concerned

ADDL

abbreviation:  Aircraft Dummy Deck Landing

ADEE

abbreviation:  Addressee

AdIntelCen

abbreviation:  Advanced Intelligence Center

Adj

abbreviation:  Adjutant (Army)

ADLS

abbreviation:  Air Dispatch Letter Service

Adm

abbreviation:  Administrative

Adm

abbreviation:  Admiral

ADMIN

abbreviation:  Administration, Administrative

Admiral

glossary:  The commissioned navy rank above vice admiral and below fleet admiral; designated O-10. Abbreviated ADM.

ADMLTY

abbreviation:  Admiralty (GB)

AdmO

abbreviation:  Administrative Officer (Army)

AdmO

abbreviation:  Administrative Order (Army)

ADN

abbreviation:  USNR officer designation. See A, D and N. Formerly (AD)-N.

ADP

abbreviation:  Air Defense Position

ADR

abbreviation:  Aircraft Direction Room

ADR

abbreviation:  USNR officer designation. See A, D and R. Formerly (AD)-R.

ADRDE

abbreviation:  Air Defense Research and Development Establishment

ADroBn

abbreviation:  Airdrome Battalion

ADT

abbreviation:  USNR officer designation. See A, D and T. Formerly (AD)-T.

ADU

abbreviation:  Aircraft Delivery Unit

ADV

abbreviation:  Advance(d)

AdvHed

abbreviation:  Advanced Headquarters

AdvIntelCen

abbreviation:  Advanced Intelligence Center

Advon

abbreviation:  Advanced Echelon (USMC)

ADX

abbreviation:  USNR officer designation. A, D and X. Formerly (AD)-X.

AE-#

abbreviation:  "Grasshopper"; single-engine Navy Utility plane (VJ), manufactured by Piper

AE

abbreviation:  Ammunition Ship

AEAF

abbreviation:  Allied Expeditionary Air Force

AEDO

abbreviation:  USN officer designation; Aviation Engineering Duty

AEF

abbreviation:  American Expeditionary Forces (Army)

AEI

abbreviation:  Acrylic Eye Illustrator (Medical)

AEL

abbreviation:  Aeronautical Engine Laboratory

AEM

abbreviation:  Aviation Electrician’s Mate

AEngrServ

abbreviation:  Army Engineer Service

AEO

abbreviation:  Air Engineer Officer

AEOB

abbreviation:  Advanced Engine Overhaul Base

AER

abbreviation:  Aerographer

AER

abbreviation:  Aeronautics

AERM

abbreviation:  Aerographer’s Mate

AERO

abbreviation:  Aerographer

Aero

abbreviation:  Aerological

AerOf

abbreviation:  Aerological Officer

AEROG

abbreviation:  Aerologist

AETAC

abbreviation:  Aviation Electronic Technician’s Mate, Combat Aircrewman

AETM

abbreviation:  Aviation Electronic Technician’s Mate

AEW

abbreviation:  Airborne Early Warning (Radar)

AEWTU

abbreviation:  Airborne Early Warning Training Unit

AExServ

abbreviation:  Army Exchange Service

AF(F)MMIU

abbreviation:  Amphibious Forces Ordnance Material mobile Instruction Unit

AF

abbreviation:  Air Force

AF

abbreviation:  Army Force

AF

abbreviation:  Asiatic Fleet

AF

abbreviation:  Audio Frequency

AF

abbreviation:  Automatic Following (radar)

AF

abbreviation:  Provision Storeship

AFAF

abbreviation:  Amphibious Force Atlantic Fleet

AFC

abbreviation:  Aviation Fire Controlman

AFCE

abbreviation:  Automatic Flight Control Equipment

AFD

abbreviation:  Mobile Floating Drydock

AFDB

abbreviation:  Auxiliary Floating Drydock, Big

AFDL(C)

abbreviation:  Auxiliary Floating Drydock, Little, Concrete

AFDL

abbreviation:  Auxiliary Floating Drydock, Little

AFDM

abbreviation:  Auxiliary Floating Drydock, Medium

AFDO

abbreviation:  Assistant Fighter Director Office

AFDS

abbreviation:  Auxiliary Fighter Director Ship

AFGIS

abbreviation:  Aerial Free Gunnery Instruction School(s)

AFGU

abbreviation:  Aerial Free Gunnery Unit

AFHQ(CIC)

abbreviation:  Allied Force Headquarters (Counter Intelligence Corps)

AFHQ

abbreviation:  African Force Headquarters

AFHQ

abbreviation:  Allied Force Headquarters (US & GB)

AFHQPS

abbreviation:  Allied Force Headquarters Petroleum Section

AFI

abbreviation:  Armed Forces Institute (US)

AFL

abbreviation:  American Federation of Labor

AFMFP

abbreviation:  Aircraft Fleet Marine Force Pacific

AFO

abbreviation:  Admiralty Fleet Order (GB)

AFO

abbreviation:  Atlantic Fleet Organization

AFRS

abbreviation:  Armed Forces Radio Service

AFSU

abbreviation:  Auxiliary Ferry Service Unit

AFSub

abbreviation:  Army Air Forces Anti-Submarine Command

AFSWA

abbreviation:  Assistant Secretary of War for Air

Aft. B.

blueprints:  After Body.

aft

nautical:  Near the stern; toward the stern.

after body

nautical:  That portion of a ship’s body aft of the midship section.

after frames

nautical:  Frames aft of amidships, or frames near the stern of the ship.

after peak

nautical:  The aftermost tank or compartment forward of the stern post.

after perpendicular

nautical:  A line perpendicular to the base line intersecting the after edge of the stern post at the designed water line. On submarines or ships having a similar stern, it is a vertical line passing through the point where the designed water line intersects the stern of the ship.

afternoon

glossary:  Noon to 4 p.m. (1200 to 1600 on the deck logs).

AFV

abbreviation:  Armored Fighting Vehicle (USMC)

AFWesPac

abbreviation:  U.S. Army Forces, Western Pacific

AG

abbreviation:  Adjutant General (Army)

AG

abbreviation:  Air Group

AG

abbreviation:  Armed Guard

AG

abbreviation:  Arresting Gear and Barriers

AG

abbreviation:  Miscellaneous Auxiliary (ship)

AGas

abbreviation:  Aviation Gasoline

AGC

abbreviation:  Armed Guard Center

AGC

abbreviation:  General Communications Vessel (1943); Amphibious Force Flagship equipped with special communication facilities (1945)

AGCTS

abbreviation:  Armed Guard Center Training School

AGD

abbreviation:  Adjutant General’s Department (Army)

AGD

abbreviation:  Seagoing Dredge

AGE

abbreviation:  Admiralty Gunnery Establishment

AGF

abbreviation:  Army Ground Forces

AGFRTS

abbreviation:  Air and Ground Forces Resources and Technical Staff (Army)

AGIO

abbreviation:  Armed Guard Inspection Officer

AGIS

abbreviation:  Armed Guard Inspection Service

AGL

abbreviation:  Lighthouse Tender

AGLO

abbreviation:  Air Ground Liaison Officer (USMC)

AGN

abbreviation:  Articles for the Government of the Navy

AGO

abbreviation:  Adjutant General’s Office (Army)

AGO

abbreviation:  Air Gunnery Officer

AGOS

abbreviation:  Aviation Gunnery Officers School

AGP

abbreviation:  Motor Torpedo Boat Tender

AGS

abbreviation:  Allied Geographic Section (SWPac)

AGS

abbreviation:  Armed Guard School(s)

AGS

abbreviation:  Surveying Ship

AGSc

abbreviation:  Surveying Ship (Coastal)

AGWAR

abbreviation:  Adjutant General, War Department

AH

abbreviation:  Hospital Ship

AHQ

abbreviation:  Air Headquarters

AHQ

abbreviation:  Army Headquarters

AI

abbreviation:  Air Intelligence (Royal Air Force)

AI

abbreviation:  Airborne Intercept Radar

AIC

abbreviation:  Advanced Intelligence Center

AIC

abbreviation:  Allied Intelligence Committee (London)

AIC

abbreviation:  Army Industrial College

AICO

abbreviation:  Action Information Control Officer

AICPOA

abbreviation:  Advanced Intelligence Center, Pacific Ocean Areas

AIF

abbreviation:  Air Intelligence Force

AIF

abbreviation:  Amphibian Imperial Forces

AIFS

abbreviation:  Advanced Instruction Flying School

AIG

abbreviation:  Address Indicating Group (GB)

AIL

abbreviation:  Aviation Instrument Laboratory

AINO

abbreviation:  Assistant Inspector of Naval Ordnance

AIntSec

abbreviation:  Air Intelligence Section (Army)

AIO

abbreviation:  Action Information Organization

AIO

abbreviation:  Allied Interrogating Organization (US & GB)

Air (Surface) (Land) target

orders:  This states the type of target to be expected. Directs preliminary dispositions for type target designated.

Air bedding

orders:  Trice (tie) bedding to the life lines for airing.

air casing

nautical:  A ring-shaped plate coaming surrounding the stack and fitted at the deck just below the umbrella, to protect the deck from heat and to help ventilate the fireroom.

air port

nautical:  An opening in the side or deck house of a vessel, usually round in shape and fitted with a hinged frame in which a thick glass is secured. The purpose of the air port is to provide light and ventilation to and vision from the interior of the ship. In some instances the air port is also provided with an additional solid metal hinged cover for purposes of protection of the interior should the glass be damaged or to prevent light from showing from within.

AIR

abbreviation:  Aircraft

AirAF

abbreviation:  Aircraft, Asiatic Fleet

AirArmUnit

abbreviation:  Aircraft, Armament Unit

AirASDevLant

abbreviation:  Aircraft Anti-Submarine Development Detachment, Atlantic Fleet

AIRB

abbreviation:  Airborne

AirBaseCom

abbreviation:  Air Base Commander

AirBatForPac

abbreviation:  Aircraft Battle Force, Pacific Fleet

Aircraft alert

orders:  Be on the watch for planes; guns train to established standby positions covering their sectors.

aircraft carrier

nautical:  A vessel designed to carry aircraft and fitted with a flying deck from which aircraft are launched and on which they land. A floating flying field which usually operates as a unit of a fleet.

AirDefCom

abbreviation:  Air Defense Commander

AirElO

abbreviation:  Air Electrical Officer

AirEngPropAccOverhaul

abbreviation:  Airplane Engine, Propellor and Accessory Overhaul

AirEO

abbreviation:  Air Engineer Officer

AirEvacWing

abbreviation:  Air Evacuation Wing

AirFerons

abbreviation:  Naval Air Ferry Squadrons

AirFMFPac

abbreviation:  Aircraft, Fleet Marine Force, Pacific

AirForward

abbreviation:  Shore-based Air Force, Forward Area, Central Pacific

AirGrp

abbreviation:  Air Group

AirIS

abbreviation:  Air Store Issuing Ship

AirLant

abbreviation:  Air Forces, Atlantic Fleet

AirMG

abbreviation:  Aircraft, machine Gunner

AirNorSols

abbreviation:  Aircraft, Northern Solomons

AirOps

abbreviation:  Air Operations

AirPac(Adv)

abbreviation:  Air Forces Pacific Advanced (later ComFairWesPac)

AirPac(Pearl)

abbreviation:  Air Forces Pacific, Pearl Harbor

AirPac

abbreviation:  Air Forces, Pacific Fleet

AirPacSubComFord

abbreviation:  Air Forces Subordinate Command, Forward Area

AirScoForPac

abbreviation:  Aircraft Scouting Force, Pacific Fleet

AirshipGr

abbreviation:  Airship Group

AirshipRon

abbreviation:  Airship Squadron

AirSoPac

abbreviation:  Aircraft, South Pacific Force

AirSoWesPac

abbreviation:  Aircraft, Southwest Pacific Force

AirTrainRon

abbreviation:  Air Training Squadron

AirTransRon

abbreviation:  Air Transport Squadron

AirTransRonLant

abbreviation:  Air Transport Squadrons, Atlantic

AirTransRonPac

abbreviation:  Air Transport Squadron, Pacific

AirTransRonWestCoast

abbreviation:  Air Transport Squadron, West Coast

AIS

abbreviation:  Air Intelligence Service

AITC

abbreviation:  Action Information Training Center

AK

abbreviation:  Cargo Ship, auxiliary (cargo ship of any type operated by the Navy)

AKA

abbreviation:  Cargo Ship, Attack

AKD

abbreviation:  Deep Hold Cargo Ship

AKF

abbreviation:  Refrigerated Cargo Ship (1943)

AKN

abbreviation:  Net Cargo Ship

AKS

abbreviation:  General Stores Issue Ship

AKV

abbreviation:  Cargo Ship and Aircraft Ferry

AL or A/L

abbreviation:  Air Liaison

AL

abbreviation:  Alameda, California

AL

abbreviation:  Alaska

AL

abbreviation:  Lightship

AL

abbreviation:  USNR officer designation. Limited General Service, Aviation non-flying Duties. Formerly (A)L.

ALA

abbreviation:  Alabama

ALAMCABCO

abbreviation:  All American Cable Company

ALAS

abbreviation:  Alaska

AlaskanDept

abbreviation:  Commanding General, Alaskan Department

AlBus

abbreviation:  All Bureaus

Alco

abbreviation:  American Locomotive Company

AlCom

abbreviation:  A dispatch to all commands in an area

All hands to general quarters

orders:  All hands man battle stations on the double.

All hands to quarters

orders:  All men assemble in their assigned parades for muster, or Captain’s inspection.

All Hands Up Anchor or All Hands Bring Ship to Anchor

orders:  All hands to quarters. Divisions (whose duty it is) stand by ground tackle. Used in peace time, or in ceremonies.

All men in [ ] division lay up to the quarterdeck

orders:  To muster at the designated place.

All stations report when manned and ready

orders:  A command given by Control while the circuit is being manned. Stations reply in numerical order. If a station misses, it comes in at the end.

ALLOW

abbreviation:  Allowance(s)

ALN

abbreviation:  USNR officer designation. Se AL and N. Formerly (A)L-N.

AlNav

abbreviation:  Communication directed to all Navy and Marine Corps activities

AlNavSta

abbreviation:  Letter to all Naval Stations

ALO

abbreviation:  Air Liaison Officer (USMC)

ALO

abbreviation:  Allied Liaison Office

ALO

abbreviation:  American Liaison Office

ALO

abbreviation:  Army Liaison Officer

aloft

nautical:  In the top or upper rigging; on the yards; above the decks.

ALOS

abbreviation:  Mission of Army G-2 to investigate German scientific development

ALOT

abbreviation:  Allotment

ALP

abbreviation:  Air Liaison Party

ALR

abbreviation:  USNR officer designation. See AL and R. Formerly (A)L-R.

AlSeaFron

abbreviation:  Alaskan Sea Frontier

AlSec

abbreviation:  Alaskan Sector

AlStaCon

abbreviation:  Letter to All Stations, Continental United States

Alt F Fl

abbreviation:  Alternating Fixed and Flashing

Alt F Gp Fl

abbreviation:  Alternating Fixed and Group Flashing

Alt Fl

abbreviation:  Alternating Flashing

Alt Gp Occ

abbreviation:  Alternating Group Occulting

Alt Occ

abbreviation:  Alternating Occulting

Alt

abbreviation:  Alternating

ALT

abbreviation:  Alternations

ALT

abbreviation:  Altitude

ALT

abbreviation:  USNR officer designation. See A1 and T. Formerly (A)L-T.

ALUSLO

abbreviation:  U.S. Naval Liaison Officer

ALUSNA

abbreviation:  U.S. Naval Attaché

ALUSNOB

abbreviation:  U.S. Naval Observer

ALUTS

abbreviation:  Aleutian Islands

ALX

abbreviation:  USNR officer designation. See AL and X. Formerly (A)L-X.

AM

abbreviation:  American

AM

abbreviation:  Amplitude Modulation

AM

abbreviation:  Antemeridian

AM

abbreviation:  Aviation Metalsmith

AM

abbreviation:  Mine Sweeper

AMb

abbreviation:  Mine Sweeper, Harbor

Amc (U)

abbreviation:  Coastal Mine Sweeper (underwater location)

AMC

abbreviation:  Air Mail Center

AMC

abbreviation:  American Maritime Cases

AMC

abbreviation:  Armed Merchant Cruiser (GB)

AMC

abbreviation:  Army Medical Center

AMc

abbreviation:  Mine Sweeper, Coastal

AmCon

abbreviation:  American Consul

AmConRepO

abbreviation:  American Consular Reporting Officer

AMCROSS

abbreviation:  American Red Cross

AMDI

abbreviation:  Admiralty Merchant Ship Defense Instructions

AMG

abbreviation:  Aircraft Machine Gunner

AMG

abbreviation:  Allied Military Government

AMGM

abbreviation:  Airmailgram

amidships

nautical:  In the vicinity of the middle portion of a vessel as distinguished from her ends. The term is used to convey the idea of general locality but not that of definite extent.

AML

abbreviation:  Aeronautical Materials Laboratory

AML

abbreviation:  Allied Military Liaison (Balkans)

AMM

abbreviation:  Aviation Machinist’s Mate

AMMAC

abbreviation:  Aviation Machinist’s Mate, Combat Aircrewman

AMMC

abbreviation:  Aviation Machinist’s mate, Carburetor Mechanic

AMMF

abbreviation:  Aviation Machinist’s Mate, Flight Engineer

AMMH

abbreviation:  Aviation Machinist’s Mate, Hydraulic Mechanic

AMMI

abbreviation:  Aviation Machinist’s Mate, Instrument Mechanic

AMMO

abbreviation:  Ammunition

AMMP

abbreviation:  Aviation Machinist’s Mate, Propellor Mechanic

AMMT

abbreviation:  Aviation machinist’s Mate, Turret Mechanic

AMO

abbreviation:  Aircraft Material Officer

AMPH

abbreviation:  Amphibious, Amphibian

AmphForLant

abbreviation:  Amphibious Force, Atlantic

AmphForMed

abbreviation:  Amphibious Force, Mediterranean

AmphForPac

abbreviation:  Amphibious Force, Pacific

Amphib

abbreviation:  Amphibious

AmphibFor

abbreviation:  Amphibious Forces

AmphibForCenPac

abbreviation:  Amphibious Forces, Central Pacific

Amphs

abbreviation:  Amphibious

AMPS

abbreviation:  Amperes

AMS

abbreviation:  Army Map Service

AMS

abbreviation:  Minesweeper, High Speed

AMSC

abbreviation:  Allied Military Staff Conference (Quebec, Yalta, etc.)

AMSI

abbreviation:  Admiralty merchant Shipping Instructions

AMSI

abbreviation:  Atlantic Merchant Shipping Instructions

Amt

abbreviation:  Amount

Amtrack

abbreviation:  LVT (Landing Vehicle Tracked)

AMUN

abbreviation:  Ammunition

AMVETS

abbreviation:  American Veterans of World War II

AN/ARC-1

abbreviation:  A radio transceiver

AN

abbreviation:  Annapolis, Maryland

AN

abbreviation:  Army-Navy Joint Type Ordnance

AN

abbreviation:  Net Laying Ship

AN

abbreviation:  USNR officer designation. See A and N. Formerly (A)-N.

ANC

abbreviation:  Army Nurse Corps

anchor, bower

nautical:  The large anchors carried in the bow of a vessel. Three are usually carried, two (the main bowers) in the hawse pipes, or on bill boards, and a third (spare) lashed on deck or elsewhere about the vessel for use in the event either of the main bowers is lost. The weight varies with the size and service of the ship.

anchor, kedge

nautical:  A small anchor used for warping or kedging. It is usually planted from a small boat, the vessel being hauled up toward it. The weight varies, being usually from 900 to 1,200 pounds.

anchor, sea

nautical:  This is not a true anchor, as it does not sink to the bottom. It is a conical-shaped canvas bag required by the Steamboat Inspection Service to be carried in each lifeboat. When placed overboard it serves a double purpose in keeping the boat head-on into the sea and in spreading a vegetable or animal oil from a container placed inside the bag. It is sometimes called an oil spreader.

anchor, stream

nautical:  An anchor weighing from about one-fourth to one-third the weight of the main bowers and used when mooring in a narrow channel or harbor to prevent the vessel’s stern from swinging with the current or the tide.

anchor

nautical:  A heavy iron or steel implement attached to a vessel by means of a rope or chain cable for holding it at rest in the water. When an anchor is lowered to the bottom, the drag on the cable causes one or more of the prongs, called flukes, to sink into or engage the ground which provides holding power.

Anchors aweigh

orders:  The anchor has broken ground.

ANCXF

abbreviation:  Allied Naval Commander Expeditionary Forces

ANDUS

abbreviation:  Anglo-Dutch-United States

ANGAU

abbreviation:  Australia-New Guinea Administrative Unit

Angels

abbreviation:  Radar countermeasures; now called Kites

angle bar

nautical:  A bar of angle-shaped section used as a stiffener and for attachment of one plate or shape to another.

angle bulb

nautical:  A structural shape having a bulb on one flange of the angle, used as a frame, beam, or stiffener.

angle collar

nautical:  A collar or band made of one or more pieces of angle bar and fitted tightly around a pipe, trunk, frame, longitudinal, or stiffener intersecting or projecting through a bulkhead or deck for the purposes of making a watertight or oil-tight joint. See Stapling.

angle

nautical:  Same as angle bar.

ANJSB

abbreviation:  Army-Navy Joint Specifications Board

ANMB

abbreviation:  Army-Navy Munitions Board

ANMC

abbreviation:  Assistant Navy Mail Clerk

anneal

nautical:  To heat a metal and to cool it in such a fashion as to toughen and soften it. Brass or copper is annealed by heating to a cherry red and dipping suddenly into water while hot. Iron or steel is slowly cooled from the heated condition to anneal.

AnnRept

abbreviation:  Annual Report

ANPB

abbreviation:  Army-Navy Petroleum Board

ANPPPC

abbreviation:  Army-Navy Petroleum Pool, Pacific Coast

ANSCOL

abbreviation:  Army-Navy Staff College

ANSIA

abbreviation:  Army-Navy Shipping Information Agency

ANSO

abbreviation:  Assistant Naval Stores Officer

ANTS

abbreviation:  Advanced Naval Training School

ANTU

abbreviation:  Air Navigation Training Unit

ANZAC

abbreviation:  Australian-New Zealand Army Corps

AO

abbreviation:  Administration Officer

AO

abbreviation:  Oiler, or Fuel Oil Tanker

AOACB

abbreviation:  Aviation Ordnanceman, Combat Aircrewman, Air Bomber

AOB

abbreviation:  Advanced Operational Base

AOC in CBAFO

abbreviation:  Air Officer Commanding in Chief British Air Force Occupation

AOC

abbreviation:  Air Officer Commanding (USMC)

AOC

abbreviation:  Aviation Officer Candidate

AOG

abbreviation:  Aircraft on Ground

AOG

abbreviation:  Gasoline Tanker

AOil

abbreviation:  Aviation Oil

AOL

abbreviation:  Absent over leave

AOM

abbreviation:  Aviation Ordnanceman

AOMAC

abbreviation:  Aviation Ordnanceman, Combat Aircrewman

AOMB

abbreviation:  Aviation Ordnanceman, Bombsight Mechanic

AOMT

abbreviation:  Aviation Ordnanceman, Turret Mechanic

AOND

abbreviation:  Administrative Officer, Navy Department

AOO

abbreviation:  Aviation Ordnance Officer

AOQ

abbreviation:  Aviation Officers’ Quarters

AOR

abbreviation:  Air Operations Room

AOTC

abbreviation:  Aviation Officers Training Corps

AP & SC Honolulu

abbreviation:  Army Port and Service Command, Honolulu

AP

abbreviation:  Air Publication

AP

abbreviation:  Armor Piercing

AP

abbreviation:  Aviation Pilot

AP

abbreviation:  Transport (operated by the Navy)

APA

abbreviation:  Appropriation Purchases Account

APA

abbreviation:  Transport, Attack

APB

abbreviation:  Barracks, Ship, self-propelled

APC

abbreviation:  Acetylsalicylic Acid, Acetophenetidin, Caffeine compound ("all purpose capsules")

APc

abbreviation:  Coastal Transport (small)

APCCLA

abbreviation:  Aviation Petroleum Coordinating Committee, Latin American

APD

abbreviation:  Transport (high speed)

APEL

abbreviation:  Aeronautical Photographic Experimental Laboratory

APF

abbreviation:  Administration Flagship

APG

abbreviation:  Supporting Gunnery Ship

APH

abbreviation:  Transport for wounded

APL

abbreviation:  Labor Transport or Barrack Ship (non self-propelled)

APLA

abbreviation:  Aviation Pilot, Airship

APM

abbreviation:  Assistant Paymaster (USMC)

APM

abbreviation:  Mechanized Artillery Transport

APN

abbreviation:  Non-Mechanized Artillery Transport

APO

abbreviation:  Area Petroleum Office(r)

APO

abbreviation:  Army Post Office

APP

abbreviation:  Troop Barge, Class A

APPAC-L

abbreviation:  Aviation Petroleum Products Allocation Committee, London

APPAC

abbreviation:  Aviation Petroleum Products Allocation Committee

appendages

nautical:  Relatively small portions of a vessel extending beyond its main outline as shown by transverse and water plane sections, including such items as shafting, struts, bossings, docking and bilge keels, propellers, rudder, and any other feature, extraneous to the hull and generally immersed.

APPN

abbreviation:  Appropriation

APPROX

abbreviation:  Approximate

APR/SPR

abbreviation:  Shipboard Radar Receiver

APR

abbreviation:  Rescue Transport

apron

nautical:  A reinforcing timber bolted to the after side of the stem.

APS

abbreviation:  Army Postal Service

APS

abbreviation:  Transport, Submarine

APT

abbreviation:  Armor Piercing Traced

APT

abbreviation:  Troop Barge, Class B

APU

abbreviation:  Army Postal Unit

APUC

abbreviation:  Area Production Urgency Committee

APV

abbreviation:  Transport and Aircraft Ferry

AR

abbreviation:  Airship Rigger

AR

abbreviation:  Allocated Reserve

AR

abbreviation:  Amphibian Reconnaissance

AR

abbreviation:  Area

AR

abbreviation:  Argentia, Newfoundland

AR

abbreviation:  Army Regulations

AR

abbreviation:  Repair Ship

AR

abbreviation:  USNR officer designation. See A and R. Formerly (A)-R.

ARB

abbreviation:  Repair Ship, Battle Damage

arbor

nautical:  The principal axis member, or spindle, of a machine by which a motion of revolution is transmitted.

ARC

abbreviation:  Cable Repairing or Laying Ship

arching

nautical:  Sometimes used in lieu of "hogging".

ARCO

abbreviation:  Aircraft Resources Control Office

ARD

abbreviation:  Auxiliary Repair Dock (Floating Drydock)

ARDC

abbreviation:  Auxiliary Repair Dock, Concrete

area of sections

nautical:  The area of any cross section of the immersed portion of a vessel, the cross section being taken at right angles to the fore and aft centerline of the vessel.

ARG

abbreviation:  Admiralty Regional Officer (GB)

ARG

abbreviation:  Repair Ship, Internal Combustion Engine

Argus

abbreviation:  Shore-based fighter director unit

ARH

abbreviation:  Heavy-Hull Repair Ship

ARI

abbreviation:  Arithmetic Reading test

ARK

abbreviation:  Arkansas

ARL

abbreviation:  Repair Ship, Landing Craft

ArlAnn

abbreviation:  Arlington Annex (Navy Department)

ARM

abbreviation:  Armament

ARM

abbreviation:  Aviation Radioman

ARM

abbreviation:  Heavy machinery Repair Ship

ARMAC

abbreviation:  Aviation Radioman, Combat Aircrewman

ARMD

abbreviation:  Armored

ArmdComd

abbreviation:  Armored Command (Army)

ArmGrd

abbreviation:  Armed Guard

ArmGrdCen

abbreviation:  Armed Guard Center

ARO

abbreviation:  Air Radio Officer

AROU

abbreviation:  Aviation Repair and Overhaul Unit

ARP

abbreviation:  Air Raid Precautions

ARPROREP

Bureau of Personnel Condensation Code:  Upon arrival further proceed and report (to)

ARREP

Bureau of Personnel Condensation Code:  Upon arrival report (to)

ARREPCOVES

Bureau of Personnel Condensation Code:  Upon arrival report to commanding officer of that vessel for duty

ARREPISC

Bureau of Personnel Condensation Code:  Upon arrival report to immediate superior in command if present; otherwise by dispatch for duty indicated

ARRL

abbreviation:  Aeronautical Radio and Radar laboratory

ArrUS

abbreviation:  Arrived within continental limits of U.S.

ARRV

abbreviation:  Arrive

ARS(D)

abbreviation:  Salvage Lifting Vessel

ARS(T)

abbreviation:  Salvage Craft Tender

ARS

abbreviation:  Air Regulating Squadron

ARS

abbreviation:  Salvage Vessel

ARSD

abbreviation:  Aviation Repair Supply Depot

ART

abbreviation:  Article

ART

abbreviation:  Aviation Radio Technician

ARTL

abbreviation:  Awaiting result of trail

Arty

abbreviation:  Artillery

ARV(A)

abbreviation:  Aircraft Repair Ship (Aircraft)

ARV(E)

abbreviation:  Aircraft Repair Ship (Engine)

ARV

abbreviation:  Aircraft Repair Ship

ARZ

abbreviation:  Arizona

AS&SL

abbreviation:  All Ships and Stations Letters

AS

abbreviation:  Altostratus

AS

abbreviation:  Anti-Submarine

AS

abbreviation:  Apprentice Seaman

AS

abbreviation:  Asiatic

AS

abbreviation:  Astoria, Oregon

AS

abbreviation:  Submarine Tender

AS

abbreviation:  United States to West African ports (routing designation)

ASA

abbreviation:  Aviation Supply Annex

ASAC

abbreviation:  Altostratus and Altocumulus

ASAP

abbreviation:  Anti-Submarine Attack Plotter

ASATTU

abbreviation:  Anti-Submarine Attack Teacher Training Unit

ASB

abbreviation:  Airborne Search Radar

ASC

abbreviation:  Air Service Command (Army)

ASC

abbreviation:  Air Support Control

ASCU

abbreviation:  Air Support Control Units

ASD

abbreviation:  Airborne Search Radar

ASD

abbreviation:  Artillery Spotting Division

ASD

abbreviation:  Aviation Supply Depot

ASDevLant

abbreviation:  Anti-Submarine Development Detachment, Atlantic Fleet

Asdic

abbreviation:  Allied Submarine Devices Investigation Committee (World War I); also, general term applied to any type of under-water supersonic echo-ranging equipment of vessels

ASE

abbreviation:  Airborne Search Radar

ASE

abbreviation:  Aircraft Stores Establishment

ASF

abbreviation:  Alaskan Sea Frontier

ASF

abbreviation:  Army Service Forces

ASFTrnTraRonPac

abbreviation:  Auxiliary Service Force, Transition Training Squadron, Pacific

ASG

abbreviation:  Airborne Search Radar

ASH

abbreviation:  Airborne Search Radar

ASIS

abbreviation:  Ammunition Stores Issuing Ship

ASN

abbreviation:  Army Serial Number

ASO

abbreviation:  Air Signal Officer

ASO

abbreviation:  Air Staff Officer

ASO

abbreviation:  Assistant Secretary’s Office (Navy)

ASO

abbreviation:  Aviation Supply Office (Philadelphia)

ASOS

abbreviation:  Assistant Supervisor of Shipbuilding

ASP

abbreviation:  Anti-Submarine Patrol

ASR or A/SR

abbreviation:  Air-Sea Rescue

ASR

abbreviation:  Submarine Rescue Vessel

ASRS

abbreviation:  Anglo-Soviet Recognition Signals

ASSERON

abbreviation:  Army Service Squadron (corresponds to Navy’s CASU)

ASSRON

abbreviation:  Air Service Support Squadron (Army)

Asst.

blueprints:  Assistant.

Asst

abbreviation:  Assistant

AST

abbreviation:  Assistant (to)

AstCk

abbreviation:  Assistant Cook

astern

nautical:  Signifying position, in the rear of or abaft the stern; as regards motion, the opposite of going ahead; backwards.

ASTP

abbreviation:  Army Specialized Training Program

ASTRP

abbreviation:  Army Specialized Training Reserve Program

AstSecNav

abbreviation:  Assistant Secretary of the Navy

AstSecNavAir

abbreviation:  Assistant Secretary of the Navy for Air

ASTU

abbreviation:  Air Support Training Units

ASTU

abbreviation:  Army Specialized Training Unit

ASU

abbreviation:  Aircraft Scheduling Unit

ASV

abbreviation:  Airborne Search Radar

ASW or A/SW

abbreviation:  Anti-Submarine Warfare

ASW

abbreviation:  Assistant Secretary of War

ASWO

abbreviation:  (Naval) Air Stations Weekly Orders

ASWORG

abbreviation:  Anti-Submarine Warfare Operations Research Group

ASWTC

abbreviation:  Anti-Submarine Warfare Training Center

ASWTraCen

abbreviation:  Anti-Submarine Warfare Training Center

ASWTU

abbreviation:  Anti-Submarine Warfare Training Unit

ASWUnit

abbreviation:  Anti-Submarine Warfare Unit

AT (E)

abbreviation:  Administration of Territories (Europe)

At ease

orders:  A command given when it is desired to allow the men to relax at their stations.

AT&T

abbreviation:  American Telegraph and Telephone Company

AT

abbreviation:  Anti-Tank

AT

abbreviation:  Ocean-going Tug

AT

abbreviation:  United States to United Kingdom (routing designation)

AT

abbreviation:  USNR officer designation. See A and T. Formerly (A)-T.

ATA

abbreviation:  Army Transportation Association

ATA

abbreviation:  Ocean Tug (Auxiliary)

ATAD

abbreviation:  Absent on temporary additional duty

ATAD

abbreviation:  Air Technical Analysis Division

ATAK

abbreviation:  Attack

ATANDT

abbreviation:  American Telephone and Telegraph Company

ATB

abbreviation:  Amphibious Training Base

ATC

abbreviation:  Air Transport Command (USAAF)

ATC

abbreviation:  Airport Traffic Control

ATC

abbreviation:  Army Training Center

ATCC(L)

abbreviation:  Allied Tanker Coordinating Committee in London

ATCC(W)

abbreviation:  Allied Tanker Coordinating Committee in Washington

ATCLO

abbreviation:  Amphibious Training Command Liaison Officer

ATCom

abbreviation:  Atoll Commander

ATCOR

abbreviation:  Air Traffic Coordinator

ATCOREU

abbreviation:  Air Traffic Coordinator Europe

ATCORUS

abbreviation:  Air Transport Coordinator for the United States

ATD

abbreviation:  Actual Time of Departure

ATF

abbreviation:  Ocean Tug, Fleet

athwart

nautical:  Across, from side to side, transverse, across the line of a vessel’s course.

athwartship

nautical:  Reaching across a vessel, from side to side.

ATIS

abbreviation:  Allied Translation and Intelligence Section

Atl

abbreviation:  Atlantic

ATL

abbreviation:  Awaiting trial

ATL

abbreviation:  Tank-landing craft, ocean going

ATMU

abbreviation:  Aircraft Torpedo Maintenance Unit

ATO

abbreviation:  Assisted take-off

ATO

abbreviation:  Ocean Tug, Old

ATR

abbreviation:  Aircraft Trouble Report

ATR

abbreviation:  Aviation Training Record

ATR

abbreviation:  Ocean Tug, Rescue

ATRON

abbreviation:  Atlantic Squadron (before Feb. 1941)

ATS

abbreviation:  Army Transport Service

ATSC

abbreviation:  Air Technical Service Command (Army)

ATSU

abbreviation:  Air Travel Security Unit

ATT

abbreviation:  Mess attendant

ATTC

abbreviation:  Aviation Technical Training Center

ATTN

abbreviation:  Attention

ATU

abbreviation:  Advanced Training Unit

AugU

abbreviation:  Augmenting Unit

AUS

abbreviation:  Army of the United States

Auth

abbreviation:  Authority

AUTH

abbreviation:  Authority

AUTHEXANDO

Bureau of Personnel Condensation Code:  Authority granted to execute acceptance and oath of office for

Auto Weap

abbreviation:  Automatic Weapons

Automatic key-fire

orders:  Guns are fired automatically by a gyro device as the ship rolls the guns across the target.

AUX

abbreviation:  Auxiliary or Auxiliary Craft

auxiliaries

nautical:  Various winches, pumps, motors, engines, etc., required on a ship, as distinguished from main propulsive machinery (boilers and engines on a steam installation).

AV

abbreviation:  Audio-Visual

AV

abbreviation:  Aviator, Aviation

AV

abbreviation:  Seaplane Tender

Avast or Avast heaving

orders:  Stop, or stop heaving.

AVC

abbreviation:  American Veterans’ Committee

AVC

abbreviation:  Catapult Lighter

AVCAD

abbreviation:  Aviation Cadet

AVD

abbreviation:  Seaplane Tender (highspeed)

Avenger

abbreviation:  See TBF-#, TBM-#

AVG

abbreviation:  Aircraft Carrier, Escort [see CVE]

AvGas

abbreviation:  Aviation Gasoline

AVH

abbreviation:  USN officer designation. Designated Naval Aviator, Heavier than Air, on Flight Duty, USN.

AVIA

abbreviation:  Aviation pay

AVL

abbreviation:  Aviation officer designation. Designated Naval Aviator, Lighter than Air, on Flight Duty, USN.

AVM

abbreviation:  Air Vice-Marshal

Avn

abbreviation:  Aviation

AvnCdt

abbreviation:  Aviation Cadet

AvnEngrBn

abbreviation:  Aviation Engineer Battalion (USMC)

AvnU

abbreviation:  Aviation Unit (USMC)

AVP

abbreviation:  Seaplane Tender (Small)

AVR

abbreviation:  Aircraft Rescue Vessel

Avr

abbreviation:  Aviator

AVS

abbreviation:  Aviation Supply Ship

AVT

abbreviation:  Aviation Medicine Technician

AVT

abbreviation:  Aviation Medicine

AVTR

abbreviation:  Aviator

AW

abbreviation:  Articles of War (Army)

AW

abbreviation:  Automatic Weapons (Army)

AW

abbreviation:  Distilling Ship

AWA or AWAS

abbreviation:  Air Warfare Analysis Section (GB)

Away fire and rescue party

orders:  Fire and rescue party muster with gear and be prepared to shove off to assist another ship in distress.

AWC

abbreviation:  Army War College

AWK

abbreviation:  Water Tanker

awning

nautical:  A roof-like canopy of canvas suspended above a vessel’s decks, bridges, etc., for protection against sun and weather.

AWOL

abbreviation:  Absent without official leave

AWrnCo

abbreviation:  Aircraft Warning Company (USMC)

AWS

abbreviation:  Air Warning Squadron (USMC)

AWS

abbreviation:  Physically on board awaiting sentence of court martial; not ship’s company

AWT

abbreviation:  Physically on board awaiting trial by court martial; not ship’s company

AX

abbreviation:  Planned Auxiliary, New Construction

AX

abbreviation:  USNR officer designation. See A and X. Formerly (A)-X.

AZ

abbreviation:  Air Ship Tender (Lighter than Air)

B Eng

abbreviation:  Basic Engineering

B-314

abbreviation:  "Clipper"; four-engine Navy Transport (VR (HS)), seaplane, manufactured by Boeing; formerly Pan-American "Clipper")

B-M

abbreviation:  Boilers, Propulsion Division of Engineering Department aboard a carrier

B. E.

blueprints:  Beveled Edge.

B. K.

blueprints:  Bilge Keel, same as Rol. K.

B. L.

blueprints:  Base Line.

B/B

abbreviation:  Baby Incendiary Bomb

B/L

abbreviation:  Bill of Lading

B&Q

abbreviation:  Barracks and Quarters (Army)

B&W

abbreviation:  Babcock and Wilcox (boilers)

B&W

abbreviation:  Black and White (film)

B&W

abbreviation:  Bread and Water

B

abbreviation:  Beech Aircraft Company (manufacturer’s symbol)

B

abbreviation:  Biplane

B

abbreviation:  Boeing Aircraft Company (manufacturer’s symbol)

B

abbreviation:  Boeing Aircraft of Canada, Ltd. (manufacturer’s symbol)

B

abbreviation:  Boilermaker

B

abbreviation:  Bomber Field

B

abbreviation:  Budd Manufacturing Company (manufacturer’s symbol)

B

abbreviation:  Built for British (suffix to plane designation, as: F4F-4B)

B

abbreviation:  Butcher

B

abbreviation:  First letter in the Navy aircraft designation, indicating a bomber plane

B

abbreviation:  Ship Symbols preceded by B represent Lend-Lease vessels for Royal Navy; e.g.: BAm is British Minesweeper

BA

abbreviation:  Balboa, Canal Zone

BA

abbreviation:  British Admiralty

BA

abbreviation:  British Army

BABS

abbreviation:  Blind Approach Beam System (radar)

BAC

abbreviation:  British Air Commission (Washington)

BACC

abbreviation:  British-American Coordinating Committee (Turkey)

back bar

nautical:  Used for the same purpose but on the opposite side to a bosom bar.

back board

nautical:  A portable back support nicely designed and fitted on the after side of the stern thwart in a small motor or row boat.

back stay

nautical:  Stays which extend from all mast levels, except the lower, to the ship’s side at some distance abaft the mast. They serve as additional supports to prevent the masts going forward and also contribute to the lateral support, thereby assisting the shrouds.

BAD

abbreviation:  British Admiralty Delegation (Washington)

baffle

nautical:  A plate or structure placed in the line of flow of fluids or gases to divert the flow in order to obtain greater contact with heating or cooling surfaces.

BAGAIR

Bureau of Personnel Condensation Code:  (Total pounds) baggage authorized while in an air travel status

BAGR, CD

abbreviation:  BuAer General Representative, Central District

BAGR, ED

abbreviation:  BuAer General Representative, Eastern District

BAGR, WD

abbreviation:  BuAer General Representative, Western District

BAGR

abbreviation:  BuAer General Representative (formerly, General Inspector of Naval Aircraft)

BAIRES

abbreviation:  Buenos Aires

BAK

abbreviation:  Cargo Ship (Lend-Lease to Great Britain)

Baka (foolish)

abbreviation:  Allied name for Japanese Oka (rocket propelled one-man guided missile); earlier, called "Viper"

Baker

abbreviation:  "B" in the phonetic alphabet

BAKS

abbreviation:  Barracks

BAL

abbreviation:  Balance

balanced rudder

nautical:  A rudder with its axis between the forward and after edge.

BALDNY

abbreviation:  Ballistic Density

balk

nautical:  A piece of timber from 4" to 10" square.

ballast tanks

nautical:  Tanks provided in various parts of a ship for introduction of water ballast when necessary to add weight to produce a change in trim or in stability of the ship, and for submerging submarines.

ballast water

nautical:  Sea water, confined to double bottom tanks, peak tanks, and other designated compartments, for use in obtaining satisfactory draft, trim, or stability.

ballast

nautical:  Any weight carried solely for the purpose of making the vessel more seaworthy. Ballast may be either portable or fixed, depending upon the condition of the ship. Fixed or permanent ballast in the form of sand, concrete, lead, scrap, or pig iron is usually fitted to overcome an inherent defect in stability or trim due to faulty design or changed character of service. Portable ballast, usually in the form of water pumped into or out of the bottom, peak, or wing ballast tanks, is utilized to overcome a temporary defect in stability or trim due to faulty loading, damage, etc., and to submerge submarines.

ballasted condition

nautical:  A condition of loading in which it becomes necessary to fill all or part of the ballast tanks in order to secure proper immersion, stability, and steering qualities brought about by consumption of fuel, stores, and water or lack of part or all of the designed cargo.

balsa

nautical:  A light wood; a South American raft made of light wood.

BALWND

abbreviation:  Ballistic Wind

BAM

abbreviation:  British Air Ministry

BAm

abbreviation:  Mine Sweeper (Lend-Lease to Great Britain)

BAMO

abbreviation:  Bureau of Aeronautics Material Officer

BAMRO

abbreviation:  Bureau of Aeronautics Maintenance Repair Officer

BAMRRO

abbreviation:  Bureau of Aeronautics Maintenance Resident Representative Officer

BAMS

abbreviation:  Broadcast to Allied Merchant Ships

BAMSR

abbreviation:  British Admiralty Maintenance and Supply Representative

BAR

abbreviation:  Browning Automatic Rifle

BAR

abbreviation:  Bureau of Aeronautics Representative (formerly Inspector of Naval Aircraft)

BARDay

abbreviation:  Bureau of Aeronautics Representative, Dayton, Ohio

barge

nautical:  A craft of full body and heavy construction designed for the carriage of cargo but having no machinery for self-propulsion.

BARM

abbreviation:  British Admiralty Repair Mission

BARR

abbreviation:  Bureau of Aeronautics Resident Representative

Barrage fire

orders:  A method of rapid fire using a fixed range, or fuze setting; so that the target if it continues its course and speed will pass through it. The barrage must be relaid depending upon the movements of the target.

BARS

abbreviation:  Salvage Vessel (Lend-Lease to Great Britain)

BaseFor

abbreviation:  Base Force

BaseServUnit

abbreviation:  Base Service Unit

Bat.

blueprints:  Batten.

Bat

abbreviation:  Battalion (USMC)

BAT

abbreviation:  Battle, Battleship

BAT

abbreviation:  Oceangoing Tug (Lend-Lease to Great Britain)

BatCruLant

abbreviation:  Battleships and Cruisers, Atlantic Fleet

BatCruPac

abbreviation:  Battleships and Cruisers, Pacific Fleet

BatDiv

abbreviation:  Battleship Division

BatFor

abbreviation:  Battle Force

BatLant or BatShipsLant

abbreviation:  Battleships, Atlantic Fleet

BatPac or BatShipsPac

abbreviation:  Battleships, Pacific Fleet

BatRon

abbreviation:  Battleship Squadron

BATSHIP

abbreviation:  Battleship, Battleforce

BatshipsBatForPac

abbreviation:  Battleships, Battle Force, Pacific Fleet

batten

nautical:  Long, thin, strips of wood, steel, or plastic, usually of uniform rectangular section used in the drafting room and mold loft to lay down the lines of a vessel, but sometimes thinned down in the middle or at the ends to take sharp curves. A strip of wood or steel used in securing tarpaulins in place. To secure by means of battens, as to "batten down a hatch."

battens, cargo

nautical:  A term applied to the wood planks or steel shapes that are fitted to the inside of the frames in a hold to keep the cargo away from the shell plating; the strips of wood or steel used to prevent shifting of cargo.

battens, seam

nautical:  Wood seamstraps which connect the edges of small boats having a single thickness of planking. They give additional stiffness to the plank, are continuous, and frames are notched out to fit over them.

battle cruiser

nautical:  A naval vessel having high speed, wide radius of action, guns of large size and range, and moderate protection; often defined as a ship cruiser speed and battleship armament, with full protection against cruisers and smaller vessels and capable of operation in all weather.

battleship

nautical:  A naval vessel having a large displacement, good speed, large radius of action, maximum armament, maximum protection against gun fire, bombs, and torpedoes, ability to keep at sea in all weathers and to bear the brunt of sea fighting as a line-of-battle ship.

BAVG

abbreviation:  Aircraft Carrier Escort (lend-Lease to GB)

BAYONGRU

abbreviation:  Bayonne Group

BB

abbreviation:  Base Planning Board

BB

abbreviation:  Battleship

BBB

abbreviation:  Basic Boxed Base

BBC

abbreviation:  Bombenzyl Cyanide

BBH

abbreviation:  Battalion Beachhead (Army)

BBL

abbreviation:  Barrel

bbls

glossary:  Barrels (of oil).

BC

abbreviation:  Battery Commander (Army)

BC

abbreviation:  Battle Cruiser (GB)

BC

abbreviation:  United States East Coast to Society Islands (routing designation)

BCD

abbreviation:  Bad Conduct Discharge

BCDD

abbreviation:  Base Construction Depot Detachment

Bcn

abbreviation:  Bombardment calling wave

BCRA

abbreviation:  Bureau Centrale de Renseignements et d’Action (Free French)

BD-#

abbreviation:  "Havoc"; twin-engine Navy bomber (VB), manufactured by Douglas

BD

abbreviation:  Bomb Disposal

BdD&M

abbreviation:  Board of Decorations and Medals

BDE

abbreviation:  Escort Vessel (Lend-Lease to GB)

BDGC

abbreviation:  Bad conduct discharge, general court martial, after confinement in prison

BDGI

abbreviation:  Bad conduct discharge, general court martial, immediate

BDGP

abbreviation:  Bad conduct discharge, general court martial, after violation of probation

BDI

abbreviation:  Bearing Deviation Indicator (Sonar)

BDSI

abbreviation:  Bad conduct discharge, sentence of summary court martial, immediate

BDSP

abbreviation:  Bad conduct discharge, summary court martial, after violation of probation

beam knee

nautical:  A bracket between a frame or stiffener and the end of a beam; a beam arm.

beam line

nautical:  A line showing the points of intersection between the top edge of the beam and the molded frame line, also called "molded deck line".

beam, plate angle

nautical:  A beam made from a flat plate, with the flange bent at right angles as by an angle-bending machine.

beam, transom

nautical:  A strong deck beam situated in the after end of the vessel connected at each end to the transom frame. The cant beams which support the deck plating in the overhang of the stern are attached to and radiate from it.

beam

nautical:  The extreme width of a ship. Also an athwartship or longitudinal member of the ship’s structure supporting the deck.

Bearcat

abbreviation:  See F8F-#

bearding line

nautical:  A term applied to the intersection of the molded line of planking or plating and the stem, stern post, and keel, usually in connection with wood shipbuilding.

bearer

nautical:  A term applied to foundations, particularly those having vertical web plates as principal members. The vertical web plates of foundations are also called bearers.

bearing

nautical:  A block on or in which a journal rotates; a bearing-block.

Belay that, or Belay the last word

orders:  Pay no attention to the command or order given, or cease action if the order has been placed partially into action.

Belay

orders:  To make fast to a pin or cleat. Cancels or negates an order or information.

bell mouthed

nautical:  A term used to signify the open end of vessel or pipe when it expands or spreads out with an increasing diameter, thus resembling a bell — also called trumpet mouthed.

bell

nautical:  In pipe fitting, the recessed or enlarged female end of a pipe into which the male end of the next pipe fits. In plumbing, the expanded female portion of a wiped joint.

below

nautical:  Underneath the surf the water. Underneath a deck or decks.

Bend

orders:  To make fast; that is, to bend a cable is to make it fast to the anchor.

bending rolls

nautical:  A large machine used to give curvature to plates by passage in contact with three rolls.

bending slab

nautical:  Heavy cast-iron blocks with square or round holes for "dogging down," arranged to form a large solid floor on which frames and structural members are bent and formed.

Benef

abbreviation:  Beneficiary

Bermuda

abbreviation:  See SB2A-#

BerSeaPat

abbreviation:  Bering Sea Patrol

berth

nautical:  A term applied to a bed or a place to sleep. Berths, as a rule, are permanently built into the structure of the staterooms or compartments. They are constructed singly and also in tiers of two or three, one above the other. When single, drawers for stowing clothing are often built in underneath. Tiers of berths constructed of pipe are commonly installed in the crew space. Also, a place for a ship.

Beth

abbreviation:  Bethlehem Shipbuilding Corporation

Betty

glossary:  Twin engine Mitsubishi G4M3 torpedo-bomber.

between decks

nautical:  The space between any two, not necessarily adjacent, decks. Frequently expressed as "Tween Decks."

Bev. Bd.

blueprints:  Bevel Board.

bevel, closed

nautical:  A term applied where one flange of a bar is bent to form an acute angle with the other flange.

bevel, open

nautical:  A term applied where one flange of a bar is bent to form an obtuse angle with the other flange. Frame bars in the bow and the stern of a vessel are give an open bevel to permit access for riveting to shell and to keep the standing flange parallel to the deck beams.

bevel

nautical:  A term for a plane having any other angle than 90 degrees to a given reference plane. Also, a small tool similar to a try square except that the blade is adjustable to taking bevels.

BEW

abbreviation:  Board of Economic Warfare

BF

abbreviation:  Brought Forward

BFM

abbreviation:  Basic Field Manual (Army)

Bfo

abbreviation:  Beat frequently oscillator

BG-#

abbreviation:  Single-engine Navy bomber (VB), biplane, manufactured by Great Lakes

BG

abbreviation:  British Guiana

BGM

abbreviation:  Basegram

BGM

abbreviation:  Buglemaster

Bgmstr

abbreviation:  Buglemaster

BGPP

abbreviation:  Beneficiary Government Production Program

Bhd.

blueprints:  Bulkhead.

BHO

abbreviation:  Branch Hydrographic Office

BHQ

abbreviation:  Brigade Headquarters (Army)

BI

abbreviation:  Bermuda Islands

BI

abbreviation:  Biographical inventory

bibb

nautical:  A cock or valve with a bent outlet; strictly, the bent outlet.

bight

nautical:  A loop or bend in a rope; strictly, any part between the two ends may be termed the bight.

BIGOT

abbreviation:  British Messages Replanning and Direction of Major Operations

bilge plates

nautical:  The curved shell plates that fit the bilge.

bilge

nautical:  The rounded portion of a vessel’s shell which connects the bottom with side. To open a vessel’s lower body to the sea.

bilges

nautical:  The lowest portion of a ship inside the hull, considering the inner bottom where fitted as the bottom hull limit.

bill board

nautical:  An inclined platform, fitted at the intersection of the forward weather deck and the shell, for stowing an anchor. It may be fitted with a tripping device for dropping the anchor overboard. Seldom fitted since the stockless anchor has come into general use.

BIM

abbreviation:  Basic Industrial Materials (Program)

binnacle list

glossary:  List of sick or injured sailors.

binnacle

nautical:  A stand or case for housing a compass so that it may be conveniently consulted. Binnacles differ in shape and size according to where used and the size of the compass to be accommodated. A binnacle for a ship’s navigating compass consists essentially of a pedestal at whose upper end is a bowl-shaped receptacle having a sliding hood-like cover. This receptacle accommodates the gimbals supporting the compass. Compensating binnacles are provided with brackets or arms on either side, starboard and port, for supporting and securing the iron cylinders or spheres used to counteract the quadrantal deviation due to the earth’s magnetization of the vessel. This type of binnacle is usually placed immediately in front of the steering wheel, having its vertical axis in the vertical plane of the fore-and-aft centerline of the vessel.

BIO

abbreviation:  Branch Intelligence Officer

BIS

abbreviation:  Board of Inspection and Survey

bitter end

nautical:  The inboard end of a vessel’s anchor chain which is made fast in the chain locker.

bitts

nautical:  A terms applied to short metal or wood columns extending up from a base plate secured to a deck or bulwark rail or placed on a pier and to timbers extended up through and a short distance above a deck for the purpose of securing and belaying ropes, hawsers, cables, etc. Also called bollards.

bitumastic

nautical:  A black tar-like composition largely of bitumen or asphalt and containing such other ingredients as rosin, portland cement, slaked lime, petroleum, etc. It is used as a protective coating in ballast and trimming tanks, chain lockers, shaft alleys, etc.

BJM

abbreviation:  Bluejacket’s Manual

BJSM

abbreviation:  British Joint Staff Mission

BJU

abbreviation:  Beach jumper Unit

BK

abbreviation:  Yardarm Blinker

BKR

abbreviation:  Baker

Bks

abbreviation:  Barracks

Bkt.

blueprints:  Bracket.

BKT

abbreviation:  Blinker Tube

BL&T

abbreviation:  Blind Loaded and Traced

BL

abbreviation:  Bomb Line

Black Widow

abbreviation:  See FT-#

BLADING

abbreviation:  Bill of Lading

bleeder

nautical:  A small cock, valve, or plug to drain off small quantities of fluids from a container or system.

BlimpHedron

abbreviation:  Blimp Maintenance Squadron

BlimpRon

abbreviation:  Blimp Squadron

blind pulley

nautical:  A circular block of hard wood with rounded edges perforated by several holes having grooves running from them to one side of the block. One of these blocks is secured to an end of a part of the standing rigging, as a shroud, and another to the chain plate or to some part of the ship and the two are connected to one another by a lashing passing through the holes. Commonly called "dead eyes".

blinker lights

nautical:  Two electric lanterns secured at the ends of the signal yard and operated by controllers and a telegraph key for use in night signaling by code.

BLO

abbreviation:  Bombardment Liaison Officer

BLO

abbreviation:  British Liaison Officer

block, cheek

nautical:  A half shell block with a single sheave bolted to a mast or other object which serves as the other half shell or cheek. Usually used in connection with halyards.

block, fiddle

nautical:  A block having two sheaves of different diameters placed in the same plane one above the other.

block, snatch

nautical:  A single sheave block having one side of the frame hinged so that it can be opened to allow the bight of a rope to be placed on the sheave, thus avoiding the necessity of threading the end of the rope through the swallow of the block. Usually employed as a fair lead around obstructions.

Block

abbreviation:  Airborne television system

block

nautical:  The name given to a pulley or sheave, or a system of pulleys or sheaves, mounted in a frame or shell and used for moving objects by means of ropes run over the pulleys or sheaves. The prefixes, single, double, triple, etc., indicate the number of pulleys or sheaves in the block. The five principal parts of a block are (a) the shell, or outside frame, (b) the sheave, on which the rope runs, (c) the pin, on which the sheave turns, (d) the strap, by which the hook is held in position and which provides bearing for the pin, and (e) the hook, which may be open, sister, or shackle and fixed or swivel. The opening between the top of the sheave and the shell is called the swallow, that between the bottom of the sheave and the shell is called the breech, and the device attached to the bottom of the block opposite the hook for securing the standing part of the fall to the block is called the becket.

blower

nautical:  A mechanical device used to supply air under low pressure for artificial ventilation and forced draft, usually of the centrifugal type.

BLP

abbreviation:  Bombing landplane

BLT

abbreviation:  Battalion Landing Team (Army)

BM

abbreviation:  Boatswain’s Mate

BM1

abbreviation:  Boatswain’s Mate 1st class

BM2

abbreviation:  Boatswain’s Mate 2nd class

BMCBB

abbreviation:  Boatswain’s Mate, Construction Battalion, Boatswain

BMCBS

abbreviation:  Boatswain’s Mate, Construction Battalion, Stevedore

BMD

abbreviation:  Base Maintenance Division

BMG

abbreviation:  Browning Machine Gun

BMKR

abbreviation:  Boilermaker

BMM

abbreviation:  Boatswain’s Mate A (Master-at Arms)

BMR

abbreviation:  Beachmaster

BMSM

abbreviation:  British Merchant Shipping Mission

BMSRC

abbreviation:  Boatswain’s mate, Ship Repair, Crane Operator

BMSRR

abbreviation:  Boatswain’s Mate, Ship Repair, Rigger

BMSRS

abbreviation:  Boatswain’s Mate, Ship Repair, Canvasman

Bmstr

abbreviation:  Bandmaster

Bn

abbreviation:  Battalion

BN

abbreviation:  Brazilian Navy

BNAS

abbreviation:  British Naval Air Service

BnHQ

abbreviation:  Battalion Headquarters (USMC)

BNLO

abbreviation:  British Naval Liaison officer

BNP

abbreviation:  Bureau of Naval Personnel Publications

BNPCL

abbreviation:  Bureau of Naval Personnel Circular Letters

BNYD

abbreviation:  Boston Navy Yard

BO

abbreviation:  Base Order

boarding

nautical:  The act of going on board a ship.

Boat the oars

orders:  Place the oars in the boat.

BOATS

abbreviation:  A Boatswain’s Mate

Bobcat

abbreviation:  See JRC-#

bobstays

nautical:  The chains or ropes attached underneath the outer end of the bowsprit and led aft to the stem to prevent the bowsprit from jumping up. Where two are fitted they are called the inner and the cap bobstays; when three are fitted they are called the inner, the middle, and the cap bobstays.

BODU

abbreviation:  Bureau of Ordnance Design Unit

body plan

nautical:  A plan consisting of two half transverse elevations or end views of a ship, both having a common vertical center line, so that the right-hand side represents the ship as seen from ahead, and the left-hand side as seen from astern. On the body plan appear the forms of the various cross sections, the curvature of the deck lines at the side, and the projections, as straight lines of the water lines, the bow and buttock lines, and the diagonal lines.

BOI

abbreviation:  Boiler

boiler casing

nautical:  Walls forming a trunk leading from the boiler room to the boiler hatch, which protect the different deck spaces from the heat of the boiler room, etc.

Boiler central control station

engineering:  A station for directing control of all boilers at boiler operating stations.

Boiler emergency station

engineering:  A station for a chief water tender from which he may proceed with minimum delay to any fireroom, boiler operating station, or boiler room from which trouble has been reported.

Boiler operating station

engineering:  A station from which a boiler or boilers are operated.

Boiler room

engineering:  A compartment containing boilers but not containing station for "firing" or operating the boilers.

boiler room

nautical:  A compartment in the hold, in the middle or after section of a vessel, where the boilers are placed.

boiler

nautical:  Any vessel, container, or receptacle that is capable of generating steam by the internal or external application of heat. The two general classes are fire tube and water tube.

bollards

nautical:  See "bits".

bolster plate

nautical:  A piece of plate adjoining the hawse hole, to prevent the chafing of the hawser against the cheek of a ship’s bow. A plate for support like a pillow or cushion. A piece of timber used as a support. A temporary foundation.

bolt

nautical:  A metal rod used as a fastening. With few exceptions, such as drift bolts, a head or shoulder is made on one end and a screw thread to carry a nut is cut on the other.

bolting up

nautical:  Securing by means of bolts and nuts parts of a structure in proper position for permanent attachment by riveting or welding. A workman employed on this work is called a "bolter-up".

BOM

abbreviation:  Bombing

Bombardment fire

orders:  Fire at a shore target.

BomCom

abbreviation:  Bomber Command (Army)

BOMID

abbreviation:  Branch Office, Military Intelligence Division (War Department)

BomRon

abbreviation:  Bombing Squadron

bonjean curves

nautical:  Curves of areas of transverse sections of a ship. The curves of the moments of these areas above the base line are sometimes included.

bonnet

nautical:  A cover used to guide and enclose the tail end of a valve spindle.

booby hatch

nautical:  An access hatch from a weather deck protected by a hood from sea and weather. The hood is often fitted with a sliding cover to facilitate access.

boom table

nautical:  An outrigger attached to a mast or a structure built up around a mast from the deck to support the heel bearings of booms and to provide proper working clearances when a number of booms are installed on or around one mast.

boom

nautical:  A term applied to a spar used in handling cargo, or to which the lower edge of a fore-and-aft sail is attached.

boot topping

nautical:  An outside area on a vessel’s hull from bow to stern between certain waterlines to which special air, water, and grease-resisting paint is applied; also the paint applied to such areas.

BOQ

abbreviation:  Bachelor Officers Quarters

boring bar

nautical:  A portable, heavy duty tool, used for boring, counter boring, re-boring, facing, grooving, etc., where true alignment is of primary importance.

BORU

abbreviation:  Boat Operating and Repair Unit

BOS

abbreviation:  Boston, Massachusetts

BosGrp

abbreviation:  Boston Group

BOSN

abbreviation:  Boatswain (Warrant)

bosom bar

nautical:  An angle fitted inside another.

bosom plate

nautical:  A plate bar or angle fitted in the bosoms of two angle bars to connect the ends of the two angles as if by a butt strap.

bosom

nautical:  The inside of an angle bar.

boss plate

nautical:  The plate that covers the boss.

Boss Plt.

blueprints:  Boss Plate.

Boss. Fr. Aft.

blueprints:  Bossed Frames Aft.

boss

nautical:  The curved, swelling portion of the ship’s underwater hull around the propeller shaft.

bottom plating

nautical:  That part of the shell plating which is below the water line. More specifically, the immersed shell plating from bilge to bilge.

bottom, outer

nautical:  A term applied to the bottom shell plating in a double bottom ship.

bottom

nautical:  That portion of a vessel’s shell between the keel and the lower turn of the bilge.

BOU

abbreviation:  Boat Operating unit

bow lines

nautical:  Curves representing vertical sections parallel to the central longitudinal vertical plane of the bow end of a ship. Similar curves in the aft part of a hull are called buttock lines. Also, a rope leading from the vessel’s bow to another vessel or to a wharf for the purpose of hauling her ahead or for securing her.

bow

nautical:  The forward end of the ship. The sides of the vessel at and for some distance abaft the stem, designated as the right-hand, or starboard bow, and the left-hand, or port bow.

bowsprit

nautical:  A spar projecting forward over the bow for the purpose of holding the lower ends of the head sails.

BP

abbreviation:  Base Pay

BPFILO

abbreviation:  British Pacific Fleet Intelligence Liaison Officer

BPFLO

abbreviation:  British Pacific Fleet Liaison Officer

BPO

abbreviation:  Base Post Office (Army)

BPR

abbreviation:  Bridge Plotting Room

BQM

abbreviation:  Base Quartermaster (USMC)

Br. Dk.

blueprints:  Bridge Deck.

BR

abbreviation:  Bomber Reconnaissance Aircraft

BR

abbreviation:  Bremerton, Washington

BR

abbreviation:  Briefing Room

brace

nautical:  A rope attached to the yard arm, used to alter the position of the yard arm in a horizontal plane. The operation is known as trimming the sail.

bracket

nautical:  A steel plate, commonly of triangular shape with a reinforcing flange on its free edge, used to connect two parts such as deck beam to frame, frame to margin plate, etc.; also used to stiffen or tie beam angles to bulkheads, frames to longitudinals, etc.

brails

nautical:  Ropes rove through blocks fastened to a spar and attached to the leech of sail. The overhauling of these ropes gathers the sail up against the spar.

BRAL

abbreviation:  Bureau de Renseignements et d’Action, Londres (Free French)

BrancHydro

abbreviation:  Branch Hydrographic Office

Braso

abbreviation:  Branch Aviation Supply Office

brazing

nautical:  The joining of certain metals by the use of a hard solder.

breadth, extreme

nautical:  The maximum breadth measured over plating or planking, including beading or fenders.

breadth, molded

nautical:  The greatest breadth of the vessel measured from heel of frame on one side to heel of frame on other side.

breadth, registered

nautical:  Measured amidships at its greatest breadth to outside of plating.

Break arcs

orders:  A command to extinguish searchlight arcs.

break of forecastle or poop

nautical:  The point at which the partial decks known as the forecastle and poop are discontinued.

breakwater

nautical:  A term applied to plates or timbers fitted on a forward weather deck to form a V-shaped shield against water that is shipped over the bow.

breast hook

nautical:  A triangular-shaped plate fitted parallel to and between decks or side stringers in the bow for the purpose of rigidly fastening together the peak frames, stem, and outside plating; also used, in conjunction with the above duties, to fasten the ends of side stringers firmly together.

BREM

abbreviation:  Bremerton, Washington

BRG

abbreviation:  Bearing

BrgBln

abbreviation:  Barrage Balloon

bridge house

nautical:  A term applied to an erection or superstructure fitted about amidship on the upper deck of a ship.

bridge, navigating, or flying

nautical:  The uppermost platform erected at the level of the top of the pilot house. It generally consists of a narrow walkway supported by stanchions, running from one side of the ship to the other and the space over the top of the pilot house. A duplicate set of navigating instruments and controls for the steering gear and engine room signals are installed on the flying bridge so that the ship may be navigated in good weather from this platform. Awnings erected on stanchions and weather cloths fitted to the railing give protection against sun and wind.

bridge

nautical:  A high transverse platform, often forming the top of a bridge house, extending from side to side of the ship, and from which a good view of the weather deck may be had. An enclosed spaced called the pilot house is erected on the bridge in which are installed the navigating instruments, such as the compass and binnacle, the control for the steering apparatus, and the signals to the engine room. While the pilot house is generally extended to include a chartroom and sometimes staterooms, a clear passageway should be left around it. As the operation of the ship is directed from the bridge or flying bridge above it, there should also be a clear, open passage from one side of the vessel to the other. The term is also applied to the narrow walkways, called connecting bridges, which connect the bridge deck with the poop and forecastle decks. This type of bridge is usually found on tankers and is desirable whenever bulwarks are not fitted.

Brig

abbreviation:  Brigade

BRIGEN

abbreviation:  Brigadier General (USMC)

BrigGen

abbreviation:  Brigadier General

BRIT

abbreviation:  British

BRL

abbreviation:  Bomb Release Line

BRO

abbreviation:  British Routing Office

broken backed

nautical:  Said of a vessel when, owing to insufficient longitudinal strength, grounding, or other accident, her sheer is reduced or lost, thereby producing a drooping effect at both ends.

brow

nautical:  A gangplank, usually fitted with rollers at the end resting on the wharf to allow for the movement of the vessel with the tide. See watershed.

BrQM

abbreviation:  Brigade Quartermaster (USMC)

BRR

abbreviation:  Bridge Receiving Room

BRU

abbreviation:  Boat Repair Unit

BRUSA

abbreviation:  British-United States Agreement (Circuits)

BS

abbreviation:  Battleship Squadron

BS

abbreviation:  Boston (Navy Yard)

BS

abbreviation:  Busch Sulzer (ship engines)

BSC

abbreviation:  Balkan Supply Center

BSerBn

abbreviation:  Base Service Battalion (USMC)

BSI

abbreviation:  British Solomon Islands

BSN

abbreviation:  Boston, Massachusetts

BSO

abbreviation:  Base Supply Officer

BSO

abbreviation:  Bomb Safety Officer

BSO

abbreviation:  British Supply Office

BSR

abbreviation:  Boilermaker, Ship Repair

BSU

abbreviation:  Base Service Unit

BT-#

abbreviation:  Single-engine Navy bomber (VB), manufactured by Northrop

Bt. Dk.

blueprints:  Boat Deck.

BT

abbreviation:  Bahia to Trinidad (routing designation)

BT

abbreviation:  Bathythermograph (sonar)

BT2C

abbreviation:  Twin-engine Navy fighter (VF(M)), manufactured by Curtiss

BTCA

abbreviation:  Basic Tables of Commissioning Allowances (now Tables of Basic Allowances — TBA)

BTD-#

abbreviation:  Single-engine Navy scout bomber (VSB), manufactured by Douglas

BTE

abbreviation:  British Troops in Egypt

BTM-#

abbreviation:  Twin-engine Navy fighter (VF(M)), manufactured by Martin

Btry

abbreviation:  Battery

BU

abbreviation:  Bureau

BuAer (BuAero)

abbreviation:  Bureau of Aeronautics

BUAER

abbreviation:  Chief, Bureau of Aeronautics

BuC&R

abbreviation:  Bureau of Construction and Repair (to 1940)

buckle

nautical:  A distortion, such as a bulge; to become distorted; to bend out of its own plane.

buckler

nautical:  Generally, but not exclusively, applied to various devices used to prevent water from entering turret gun ports, hawse and chain pipes, etc.

buckling

nautical:  The departure of a plate, shape, or stanchion from its designed plane or axis when subjected to load or to strains introduced during fabrication, thereby reducing its ability to carry loads.

BUCon

abbreviation:  Bureau of Construction and Repair (to 1940)

BuDocks

abbreviation:  Bureau of Yards and Docks

BUDOCKS

abbreviation:  Chief, Bureau of Yards and Docks

BuEng

abbreviation:  Bureau of Engineering (to 1940)

BuExp

abbreviation:  Bureau Express (boiler)

Buffalo

abbreviation:  See F2A-#

BUG

abbreviation:  Bugler

building slip

nautical:  An inclined launching berth where the ship is built.

bulkhead stiffener

nautical:  Members attached to the plating of a bulkhead for the purpose of holding it in a plane when pressure is applied to one side. The stiffener is generally vertical, but horizontal stiffeners are used and both are found on same bulkheads. The most efficient stiffener is a T section; flat bars, angles, channels, zees, H and I sections are commonly used.

bulkhead, after peak

nautical:  A term applied to the first transverse bulkhead forward of the stern post. This bulkhead forms the forward boundary of the after-peak tank and should be made watertight.

bulkhead, collision

nautical:  The foremost transverse watertight bulkhead in a ship which extends from the bottom of the hold to the freeboard deck. It is designed to keep water out of the forward hold in case of collision damage. Usually, this is the fore peak bulkhead at the after end of the fore peak tank.

bulkhead, joiner

nautical:  Wood or light metal bulkhead serving to bound staterooms, offices, etc. and not contributing to the ship’s strength. Included under this head are corrugated metal, pressed panel, pilaster, aluminum, stainless steel, etc.

bulkhead, swash

nautical:  A strongly built, non-tight bulkhead placed in oil or water tanks to slow down the motion of the fluid set up by the motion of the ship.

bulkhead, wire mesh

nautical:  A partition or enclosure bulkhead, used largely in store rooms, shops, etc., made of wire mesh panels.

bulkhead

nautical:  A term applied to any one of the partition walls which subdivide the interior of a ship into compartments or rooms. The various types of bulkheads are distinguished by the addition of a word or words, explaining the location, use, kind of material or method of fabrication, such as fore peak, longitudinal, transverse, watertight, wire mesh, pilaster, etc. Bulkheads which contribute to the strength and seaworthiness of a vessel are called strength bulkheads, those which are essential to the watertight subdivision are watertight or oil-tight bulkheads, and gas-tight and fume-tight bulkheads serve to prevent gas or fumes from leaving or entering certain parts of a vessel.

bulldozer

nautical:  A machine, usually hydraulic or electric, for bending bars, shapes or plates while cold.

bulwark stay

nautical:  A brace extending from the deck to a point near the top of the bulwark, to keep it rigid.

bulwark

nautical:  A term applied to the strake of shell plating or the side planking above a weather deck. It helps to keep the deck dry and also serves as a guard against losing deck cargo or men overboard. Where bulwarks are fitted, it is customary to provide openings in them which are called freeing ports, to allow the water that breaks over to clear itself.

BuM&S

abbreviation:  Bureau of Medicine and Surgery

BuMed

abbreviation:  Bureau of Medicine and Surgery

BUMED

abbreviation:  Chief, Bureau of Medicine and Surgery

bumped

nautical:  A term applied to a plate which has been pressed or otherwise formed to a concave or convex shape. Used for heads of tanks, boilers, etc.

BuNav

abbreviation:  Bureau of Navigation (to 1942)

bunk

nautical:  A built-in berth or bed.

bunker

nautical:  A compartment used for stowage of coal or oil fuel.

BuOrd

abbreviation:  Bureau of Ordnance

BUORD

abbreviation:  Chief, Bureau of Ordnance

buoyancy, reserve

nautical:  The floating or buoyant power of the unsubmerged portion of the hull of a vessel. Usually referred to a specific condition of loading.

buoyancy

nautical:  Ability to float; the supporting effort exerted by a liquid (usually water) upon the surface of a body, wholly or partially immersed in it.

BuPers

abbreviation:  Bureau of Naval Personnel

BUPERS

abbreviation:  Chief, Bureau of Naval Personnel

BUPS

abbreviation:  Beacon, Ultra Portable "S" Band

burden

nautical:  The carrying capacity of a vessel expressed in long tons.

burners

nautical:  Men who operate gas torches for burning plates and shapes to proper sizes for assembly into the structure.

burr

nautical:  The rough, uneven edge of a sheared or burned plate or around a punched or burned hole. Also a washer shaped piece of metal through which the rivet is inserted and against which the rivet point is riveted over.

BuSandA

abbreviation:  Bureau of Supplies and Accounts

BUSANDA

abbreviation:  Chief, Bureau of Supplies and Accounts

BUSCI

abbreviation:  British-United States Convoy Instructions

BuShips

abbreviation:  Bureau of Ships

BUSHIPS

abbreviation:  Chief, Bureau of Ships

BUSRA

abbreviation:  British-United States Routing Agreement

butt strap

nautical:  A term applied to a strip of plate serving as a connecting strap between the butted ends of the plating. The strap connections at the edges are called seam straps.

butt

nautical:  That end or edge of a plate or timber where it comes squarely against another piece, or, the joint thus formed. The long edge of a plate is called the edge and the short edge is called the end.

buttock lines

nautical:  The curves shown by taking vertical longitudinal sections of the after part of a ship’s hull parallel to the ship’s keel. Similar curves in forward part of hull are "bow lines".

buttock

nautical:  The rounded-in overhanging part on each side of the stern in front of the rudder, merging underneath in the run.

Buttress

abbreviation:  Mine Recovery Vessel

BuY&D

abbreviation:  Bureau of Yards and Docks

BUZZ BOMB

abbreviation:  V-1 (Pilotless Flying Bomb)

BWC

abbreviation:  Board of War Communications

BWI

abbreviation:  British West Indies

BWP

abbreviation:  Basic War Plan

BX

abbreviation:  Boston to Halifax (routing designation)

BY

abbreviation:  Bayonne, New Jersey

BYMS

abbreviation:  British Yard Motor Minesweepers

C-V(G)

abbreviation:  USNR officer designation for communication officers, commissioned and warrant, including radio electricians, qualified for general detail afloat or ashore. This classification was abolished in September 1944 and replaced by one of the following: (C), (C)L, (CD), (S) or S(C).

C-V(L)

abbreviation:  USNR officer designation for commissioned communication officers qualified for liaison duties with commercial communication industry and government communication agencies. This classification was abolished in September 1944 and replaced by S(C1).

C-V(S)

abbreviation:  USNR officer designation for communication officers, commissioned and warrant, including radio electricians, qualified for specialist duties. This classification was abolished in September 1944 and replaced by one of the following: (C), (C)L, (CD), (S), or S(C)

C-V(X)

abbreviation:  USNR officer designation for communication officers qualified for Naval Communications intelligence and security duties. This classification was abolished in September 1944 and replaced by S(C2).

C. Fr.

blueprints:  Cant Frame.

C. L.

blueprints:  Center Line.

C. P.

blueprints:  Coaling Port.

C)

abbreviation:  Caretaker Status

C/C

glossary:  Change of course.

C/L

abbreviation:  Circular Letter

C/Q(not)

abbreviation:  Not assigned to quarters

C/Q(Term.date)

abbreviation:  Termination of assignment (date) to quarters

C/Q

abbreviation:  Certificate of assignment of quarters

C/R

abbreviation:  Change of rating

C/S

abbreviation:  Chief of Staff

C/S

glossary:  Change of speed.

C&GS

abbreviation:  Coast and Geodetic Survey

C&GS

abbreviation:  Command and General Staff (Army)

C&M (also CM)

abbreviation:  Construction and Machinery

C&R

abbreviation:  (Bureau of) Construction and Repair (until 1940)

C&R

abbreviation:  Convoy and Routing Section

C

abbreviation:  Center — as NATTC (Naval Air Technical Training Center)

C

abbreviation:  Central

C

abbreviation:  Cessna Aircraft Corporation (manufacturer’s symbol)

C

abbreviation:  Chief; e.g., CMUS (Chief Musician)

C

abbreviation:  Class; used with number for Navy rating as: 1c (first class)

C

abbreviation:  Commandant (USCG)

C

abbreviation:  Commander; as: CNAB (Commander Naval Air Bases)

C

abbreviation:  Commissary (USMC)

C

abbreviation:  Confidential Dispatch

C

abbreviation:  Culver Aircraft Corporation (manufacturer’s symbol)

C

abbreviation:  Curtiss-Wright Corporation (manufacturer’s symbol)

C

abbreviation:  Freighter Aircraft

C

abbreviation:  USNR officer designation for General Service, Communications Duties. Formerly (C).

CA

abbreviation:  Assistant Commandant (USCG)

CA

abbreviation:  Civil Authorities

CA

abbreviation:  Combat Aircrew (man)

CA

abbreviation:  Convening Authority

CA

abbreviation:  Heavy Cruiser

CAA-WTS

abbreviation:  Civil Aviation Authority — War Training Service

CAA

abbreviation:  Civil Aeronautics Authority

CAAF

abbreviation:  Combined Allied Air Forces

CAB

abbreviation:  Civil Aeronautics Board

cabin

nautical:  The interior of a deck house, usually the space set aside for the use of officers and passengers.

CAC

abbreviation:  Coast Artillery Corps (Army)

CAC

abbreviation:  Combat Air Crew

CAC

abbreviation:  Commander Air Center

CACW

abbreviation:  Chinese-American Composite Wing

CAD

abbreviation:  Civil Affairs Division (Army)

CAdC

abbreviation:  Combined Administrative Committee

CADRC

abbreviation:  Combined Air Documents Research Center

CAer

abbreviation:  Chief Aerographer

CAerM

abbreviation:  Chief Aerographer’s Mate

CAF

abbreviation:  Clerical, Administrative and Fiscal (Civil Service employees designation)

CAFAC

abbreviation:  Commander All Forces, Aruba-Curaçao

CAFAF

abbreviation:  Commander Amphibious Force Atlantic Fleet

CAFO

abbreviation:  Confidential Admiralty Fleet Order (GB)

CAFT

abbreviation:  Consolidated Advance Field Teams

caisson

nautical:  A watertight structure used for raising sunken vessels by means of compressed air. Also the floating gate to close the entrance to a drydock.

Cal

abbreviation:  Caliber

CALF

abbreviation:  Combined Allied Land Forces

caliber

nautical:  The term applied to the inside diameter of a cylinder, tube, or pipe. The length of a naval gun is frequently expressed in terms of its caliber.

CALIF

abbreviation:  California

calking

nautical:  The operation of jamming material into the contact area to make a joint watertight or oil-tight.

CAM

abbreviation:  Administrative Management Division (USCG)

cam

nautical:  A projective part of a wheel or other simple moving piece in a machine, shaped to give predetermined variable motion in repeating cycles to another piece against which it acts.

camber, round of beam

nautical:  The weather decks of ships are rounded up or arched in an athwartship direction for the purpose of draining any water that may fall on them to the sides of the ship where it can be led overboard through scuppers. The arching or rounding up is called the camber or round of the beam and is expressed in inches in connection with the greatest molded breadth of the ship in feet, thus, "the main deck has a camber of 10 inches in 40 feet." It is measured at the center line of the ship at the greatest molded breadth and is the distance from the chord to the top of the arch.

CAMDI

abbreviation:  Confidential Admiralty merchant Ship Defense Instructions (GB)

camel

nautical:  A decked vessel having great stability designed for use in lifting sunken vessels or structures. A submersible float used for the same purpose by submerging, attaching, and pumping out. See also caisson.

Campbell

abbreviation:  Navy crash boat equipped with television

CAMSI

abbreviation:  Canadian, American Merchant Shipping Instructions

CAMSI

abbreviation:  Confidential Admiralty Merchant Shipping Instructions

CAN

abbreviation:  Canada, Canadian

CANCEL

abbreviation:  Vessels on which construction was stopped (Code)

CANCON

abbreviation:  Canadian Control System (for convoys in Canadian Coastal Zone)

CandR

abbreviation:  Construction and Repair (USCG)

CandR

abbreviation:  Convoy and Routing

CANF

abbreviation:  Combined Allied Naval Forces

CANFSWPA

abbreviation:  Combined Allied Naval Forces Southwest Pacific Area

CANFSWPAOpPlan

abbreviation:  Combined Allied Naval Forces Southwest Pacific Ocean Area Operation Plan

cant frame

nautical:  A frame the plane of which is not square to the keel.

cant

nautical:  A term signifying an inclination of an object from a perpendicular; to turn anything so that it does not stand perpendicular or square to a given object.

CAO

abbreviation:  Civil Affairs Officer

CAP

abbreviation:  Catapult and Arresting-Gear Pool

CAP

abbreviation:  Chief Aviation Pilot

CAP

abbreviation:  Civil Air Patrol

CAP

abbreviation:  Combat Air Patrol

CAP

abbreviation:  Current Assessment Plan

CAPCP

abbreviation:  Civil Air Patrol Coastal Patrol

capping

nautical:  The fore and aft finishing piece on top of the clamp and sheer strake at the frame heads in an open boat; called a covering board, margin plank, or plank sheer in a decked-over boat.

capstan, steam

nautical:  A vertical drum or barrel operated by a steam engine and used for handling heavy anchor chains, heavy hawsers, etc. The engine is usually non-reversing and transmits its power to the capstan shaft through a worm wheel. The drum is fitted with pawls to prevent overhauling under the strain of the hawser or chain when the power is shut off. The engine may be disconnected and the capstan operated by hand through the medium of capstan bars.

CAPT

abbreviation:  Captain

Captain

glossary:  The commissioned navy rank above commander and below commodore; designated O-6. Abbreviated CAPT. Not to be confused with the operational courtesy title of captain commonly used for a ship’s commanding officer or master.

CaptLB

abbreviation:  Captain, Landing Barges

CAPUC

abbreviation:  Coordinating Area Production Urgency Committee

Car.

blueprints:  Carpenter

CAR

abbreviation:  Carrier

CAR

abbreviation:  Chief Airship Rigger

CarAirGroup

abbreviation:  Carrier Air Group

Carb

abbreviation:  Carburetor

CarDiv

abbreviation:  Carrier Division

CARE

abbreviation:  Cooperative for American Remittances to Europe

cargo boom

nautical:  A heavy boom used in loading cargo. See "boom".

cargo hatch

nautical:  A large opening in the deck to permit loading of cargo.

cargo mat

nautical:  A mat, usually square and made of manila rope, used to protect the deck covering while taking stores, etc., on board.

cargo net

nautical:  A square net, made in various sizes of manila rope or chain, and used in connection with the ship’s hoisting appliances to load cargo, etc., aboard the vessel.

cargo port

nautical:  An opening, provided with a watertight cover or door, in the side of a vessel of two or more decks, through which cargo is received and discharged.

cargo

nautical:  Merchandise or goods accepted for transportation by ship.

CARIB

abbreviation:  Caribbean

CaribSeaFron

abbreviation:  Caribbean Sea Frontier

carlings

nautical:  Short beams forming a portion of the framing about deck openings. Also called headers when they support the ends of interrupted deck beams.

Carp

abbreviation:  Carpenter

CarPac

abbreviation:  Carriers, Pacific Fleet

Carpet Sweeper

abbreviation:  Electronic transceiver (radar)

Carpet

abbreviation:  Electronic jammer (radar)

Carry on

orders:  Resume normal service of the battery. This command usually follows Silence. Also to continue with any type of work.

Carrying [ ] Degrees Rudder, Sir

orders:  Report by helmsman to relief or conning officer giving average number of degrees right (left) rudder required to keep ship on course due to wind, tide, etc.

CarTaskFor

abbreviation:  Carrier Task Force

CarTransRon

abbreviation:  Carrier Transport Squadron

CARTU

abbreviation:  Combat Aircrew Refresher Training Unit

CAS

abbreviation:  Chief of Air Staff (USMC)

CAS

abbreviation:  Civil Affairs Section

CASCP

abbreviation:  Caribbean Area Small Craft Project

CASCU

abbreviation:  Commander Aircraft Support Control Unit

CASD

abbreviation:  Carrier Aircraft Service Detachment (USMC)

CASD

abbreviation:  Carrier Aircraft Service Division

CASDIV

abbreviation:  Carrier Aircraft Service Division

casings, engine and boiler rooms

nautical:  The walls or partitions forming trunks above the engine and boiler spaces, providing air and ventilation and enclosing the uptakes. They extend somewhat above the weather deck, or superstructure deck if fitted, and are of sufficient size to permit installation and removal of engines and boilers. Doors are fitted at the several deck levels to permit access to the gratings and ladders.

Cast off all lines

orders:  Let go all lines.

Cast

abbreviation:  "C" in the phonetic alphabet; now obsolete and replaced by "Charlie"

CASU (F)

abbreviation:  Combat Aircraft Service Unit

CASU

abbreviation:  Carrier Aircraft Service Unit

CASUM

abbreviation:  Civil Affairs Summary

CASWO

abbreviation:  Confidential and Secret Weekly Orders (Naval Air Stations)

Catalina

abbreviation:  See PB2B-#, PBY-#

Catch a turn

orders:  To take a turn with a rope quickly, usually for holding it temporarily.

CATCUSAF

abbreviation:  Commander Amphibious Training Command United States Atlantic Fleet

CATS

abbreviation:  Civil Affairs Training School

CATU

abbreviation:  Combat Aircrew Training Unit

cavil

nautical:  A heavy timber fastened to the forward or after bitts about midway between the base and top to form a cleat. The bitt so built.

CAVU

abbreviation:  Ceiling and Visibility Unlimited

Caydet

abbreviation:  N2S; single-engine Boeing, Wichita (Stearman) Navy training, primary

CAZ

abbreviation:  Planned Auxiliary, Conversion (Cruiser)

CB

abbreviation:  Chief Boilermaker

CB

abbreviation:  Confidential

CB

abbreviation:  Construction Battalion ("Seabees")

CB

abbreviation:  Cooper Bessemer (ship engines)

CB

abbreviation:  Cumulonimbus

CB

abbreviation:  Large Cruiser

CBALS

abbreviation:  Carrier Borne Air Liaison Section

CBC

abbreviation:  Contraband Control

CBD

abbreviation:  Board of Review, Discharges and Dismissals (USCG)

CBD

abbreviation:  Construction Battalion Detachment

CBgmstr

abbreviation:  Chief Buglemaster

CBI

abbreviation:  China-Burma-India (Theater of Operations)

CBLO

abbreviation:  Chief Bombardment Liaison Officer

CBLS

abbreviation:  Carrier Borne Air Liaison Section

CBM

abbreviation:  Chief Boatswain’s Mate

CBMA

abbreviation:  Chief Boatswain’s Mate Acting

CBMCBB

abbreviation:  Chief Boatswain’s Mate, Construction Battalion, Boatswain

CBMCBS

abbreviation:  Chief Boatswain’s Mate Construction Battalion, Stevedore

CBmkr

abbreviation:  Chief Boilermaker (USCG)

CBMM

abbreviation:  Chief Boatswain’s Mate A (Master-at-Arms)

CBMSRC

abbreviation:  Chief Boatswain’s Mate, Ship Repair, Crane Operator

CBMSRR

abbreviation:  Chief Boatswain’s Mate, Ship Repair, Rigger

CBMSRS

abbreviation:  Chief Boatswain’s Mate, Ship Repair, Canvasman

CBMU

abbreviation:  Construction Battalion Maintenance Unit

CBN

Bureau of Personnel Condensation Code:  Construction Battalion

CBNDET

Bureau of Personnel Condensation Code:  Construction Battalion Detachment

CBO

abbreviation:  Board of Review, Officer Retirements (USCG)

CBO

abbreviation:  Coding Board Officer

CBR

abbreviation:  Budget and Requirements Division (USCG)

CBRD

abbreviation:  Construction Battalion Replacement Depot

CBSR

abbreviation:  Chief Boilermaker, Ship Repair

CBT

abbreviation:  Clinical laboratory Technician

CC-V(S)

abbreviation:  USNR designation for Engineer Officers, commissioned and warrant, including carpenters, qualified for specialist duties. Classification abolished in 1944 and replaced by S(E) classification.

CC

abbreviation:  Combat Command (Army)

CC

abbreviation:  Cyanogen chloride

CC

abbreviation:  USN officer designation for Construction Corps, USN

CCA

abbreviation:  Cash Clothing Allowance (quarterly)

CCAC/L

abbreviation:  Combined Civil Affairs Committee, London Subcommittee

CCAC/S

abbreviation:  Combined Civil Affairs Committee, Supply Subcommittee

CCAC

abbreviation:  Combined Civil Affairs Committee

CCAO

abbreviation:  Chief Civil Affairs Officer (US & GB)

CCATNA

abbreviation:  Combined Committee on Air Training in North America

CCB

abbreviation:  Combined Communications Board

CCB

abbreviation:  Contraband Control Base

CCBP

abbreviation:  Combined Communications Board Publications

CCC

abbreviation:  Chief Cable Censor

CCC

abbreviation:  Civilian Conservation Corps

CCC

abbreviation:  Combined Coordinating Committee (CCB)

CCC

abbreviation:  Commodity Credit Corporation

CCF

abbreviation:  Captain, Coastal Forces

CCFET

abbreviation:  Captain, Coastal Forces, Eastern Theatre

CCFET

abbreviation:  Central Commissioning Detail

CCGD

abbreviation:  Commander Coast Guard District; e.g., CCGDTHREE

CCk(B)

abbreviation:  Chief Cook (Baker)

CCk(C)

abbreviation:  Chief Cook (Commissary)

CCk

abbreviation:  Chief Cook

CCL

abbreviation:  Communications Circular Letter

CCM

abbreviation:  Chief Carpenter’s Mate

CCM

abbreviation:  Combined Cipher Machine

CCM

abbreviation:  Combined Coding Machine

CCMCBB

abbreviation:  Chief Carpenter’s Mate, Construction Battalion, Builder

CCMCBD

abbreviation:  Chief Carpenter’s Mate, Construction Battalion, Draftsman

CCMCBE

abbreviation:  Chief Carpenter’s Mate, Construction Battalion, Excavation Foreman

CCMCBS

abbreviation:  Chief Carpenter’s Mate, Construction Battalion, Surveyor

CCMSRB

abbreviation:  Chief Carpenter’s Mate, Ship Repair, Boatbuilder — Wood

CCMSRJ

abbreviation:  Chief Carpenter’s Mate, Ship Repair, Joiner

CCO

abbreviation:  Convoy Control Officer

CCS

abbreviation:  Chief Commissary Steward

CCS

abbreviation:  Combined Chiefs of Staff

CCSC

abbreviation:  Civil Affairs Staff Center (Wimbledon, England)

CCSF

abbreviation:  Commander Caribbean Sea Frontier

CCSTD

abbreviation:  Chief Commissary Steward

CCT

abbreviation:  Communications Control Team

CCZA

abbreviation:  Canadian Coastal Zone Atlantic

CCZP

abbreviation:  Canadian Coastal Zone Pacific

CD

abbreviation:  Coastal Defense (USMC)

CD

abbreviation:  Confidential Document

CD

abbreviation:  Conning Director

CD

abbreviation:  USNR officer designation. See C and D. Formerly (CD)

CDC

abbreviation:  Caribbean Defense Command(er)

CDD

abbreviation:  Certificate of Disability for Discharge (Army)

CDN

abbreviation:  USNR officer designation. See C, D and N. Formerly (CD)-N

CDO

abbreviation:  Command Duty Officer

Cdo

abbreviation:  Commando

CDR

abbreviation:  Commander

CDR

abbreviation:  USNR officer designation. See C, D, and R. Formerly (CD)-R

CDRE

abbreviation:  Commodore

CdreIC

abbreviation:  Commodore-in-Charge (GB)

CdrelcbPortsmouth

abbreviation:  Commodore Commanding Landing Craft Bases, Portsmouth Command (GB)

CdreSupt

abbreviation:  Commodore Superintendent (GB)

CdrF

abbreviation:  Command, Flying (GB)

CdrSBU

abbreviation:  Commander, Special Boats Units (GB)

CDS

abbreviation:  Central Distribution System (publications)

CDS

abbreviation:  Commander, Destroyer Squadron

CDT

abbreviation:  Cadet (USCG)

CDT

abbreviation:  Commandant

CDT

abbreviation:  USNR officer designation. See C, D, and T. Formerly (CD)-T.

CDX

abbreviation:  USNR officer designation. See C, D, and X. Formerly (CD)-X.

CE

abbreviation:  Chief Engineer

CE

abbreviation:  Civil Engineer

CE

abbreviation:  Combustion Engineering

CE

abbreviation:  Corps of Engineers (Army)

Cease firing, cease firing

orders:  Stop firing. Loaded guns will with permission of CO be unloaded by methods ordered from control unless previously directed to use another procedure, and will not be re-loaded until directed. This command does not necessarily mean the action is over. On this command gun captains report in order to control the rounds fired, conditions, guns and casualties.

Cease tracking

orders:  Stop following the target and resume "alert" positions at stations.

CEC-V(S)

abbreviation:  USNR officer designation for Civil Engineer Officers, commissioned and warrant, including carpenters, qualified for specialist duties. This classification was abolished in September 1944 and replaced by one of the following: CEC(S), CEC(S1), CEC(S2) or CEC(S3).

CEC(S1)

abbreviation:  USN officer designation for Special Service, Special CEC duties as Mechanical Engineer.

CEC(S2)

abbreviation:  USN officer designation for Special Service, Special CEC duties as Electrical Engineer.

CEC(S3)

abbreviation:  USN officer designation for Special Service, Special CEC duties as Cargo Handling Specialist.

CEC

abbreviation:  Central Economic Committee

CEC

abbreviation:  USN officer designation for Civil Engineer Corps, USN

CECR

abbreviation:  USNR officer designation for General Service, Civil Engineering Corps. Formerly CEC.

CECS

abbreviation:  USNR officer designation for Cargo Handling Specialists. Formerly (CEC)S.

CEF

abbreviation:  Captain (Commanding) Escort Forces

CEF

abbreviation:  Corps Expeditionaire Français

ceiling, floor

nautical:  Planking fitted on top of the floors or double bottom in the cargo holds.

ceiling, hold

nautical:  Thick strakes of planking fastened to the inside flanges or edges of the framing in the cargo holds.

ceiling

nautical:  A term applied to the planking with which the inside of a vessel is sheathed. Also applied to the sheet metal or wood sheathing in quarters and storerooms.

CEM

abbreviation:  Chief Electrician’s Mate

CEMCBC

abbreviation:  Chief Electrician’s Mate, Construction Battalion, Communications

CEMCBD

abbreviation:  Chief Electrician’s Mate, Construction Battalion, Draftsman

CEMCBG

abbreviation:  Chief Electrician’s Mate, Construction Battalion, General

CEMCBL

abbreviation:  Chief Electrician’s Mate, Construction Battalion, Line and Station

CEMSRG

abbreviation:  Chief Electrician’s Mate, Ship Repair, General Electrician

CEMSRS

abbreviation:  Chief Electrician’s Mate, Ship Repair, Shop Electrician

CEMSRT

abbreviation:  Chief Electrician’s Mate, Ship Repair, I.C. Repairman

CEN

abbreviation:  Center, Central

CenCATS

abbreviation:  Central Pacific Combat Air Transport Service (joint Army, Navy and Marine Corps) (later TAG)

CenDraft

abbreviation:  Central Drafting Officer (Navy Yard, N.Y.)

CenPac

abbreviation:  Central Pacific Area

CenPacFor

abbreviation:  Central Pacific Forces

CentCom

abbreviation:  Central Pacific Communications Instructions

center line

nautical:  The middle line of the ship from stem to stern as shown in any water line view.

center of buoyancy

nautical:  The geometric center of gravity of the immersed volume of the displacement or of the displaced water, determined solely by the shape of the underwater body of the ship. It is calculated for both the longitudinal location, forward or aft of the middle perpendicular, and the vertical location above the base line or below the designed waterline.

center of flotation

nautical:  The geometric center of gravity of the water plane at which the vessel floats, forward or aft of the middle perpendicular. It is that point about which a vessel rotates longitudinally when actuated by an external force without change in displacement.

center of gravity

nautical:  The point at which the combined weight of all the individual items going to make up the total weight of the vessel may be considered as concentrated; generally located longitudinally forward or aft of the middle perpendicular and vertically above bottom of keel or below a stated waterline.

center of lateral resistance

nautical:  The point through which a single force could act and produce an effort equal to the lateral resistance of the vessel. It is ordinarily assumed to coincident with the center of gravity of the immersed central longitudinal planes.

center of pressure

nautical:  The point in a sail or an immersed plane surface at which the resultant of the combined pressure forces acts.

CentPacBaCom

abbreviation:  Central Pacific Base Command

central lateral plane

nautical:  The immersed longitudinal vertical middle plane of a vessel.

CEO

abbreviation:  Casualty Evacuation Officer

CEOinC

abbreviation:  Civil Engineer, Officer-in-Charge

CESF

abbreviation:  Commander Eastern Sea Frontier

CEV

abbreviation:  Convoy Escort Vessel

CEWA

abbreviation:  Combined Economic Warfare Agencies

CF

abbreviation:  Carry Forward

CF

abbreviation:  Coastal Frontier (Army)

CF

abbreviation:  Flying Deck Cruiser

CFC

abbreviation:  Chief Fire Controlman

CFC

abbreviation:  Controlled Force Circulation (boilers)

CFCO

abbreviation:  Chief Fire Controlman, Operator

CFCS

abbreviation:  Chief Fire Controlman, Submarines

CFLN

abbreviation:  Comité Français Liberation Nationale

CFO

abbreviation:  Connection Fitting Out (name of ship)

CFO

abbreviation:  Physically on board for the commissioning and fitting out of a specified ship or activity

CG

abbreviation:  Coast Guard

CG

abbreviation:  Commanding General (USMC)

CG

abbreviation:  Phosgene

CGA

abbreviation:  Coast Guard Academy

CGAB

abbreviation:  Coast Guard Air Base

CGAS

abbreviation:  Coast Guard Air Station

CGC

abbreviation:  Coast Guard Cutter

CGD

abbreviation:  Coast Guard District

CGM

abbreviation:  Chief Gunner’s Mate

CGMB

abbreviation:  Commanding General, Marine Base

CGMCBG

abbreviation:  Chief Gunner’s Mate, Construction Battalion, Armorer

CGMCBP

abbreviation:  Chief Gunner’s Mate, Construction Battalion, Powderman

CGOB

abbreviation:  Coast Guard Operating Base

CGOS

abbreviation:  Combat Gunnery Officers School (Army Air Forces)

CGTS

abbreviation:  Coast Guard Training Station

CGYD

abbreviation:  Coast Guard Yard

CH

abbreviation:  Charleston (Navy Yard)

CH

abbreviation:  Chief of the —; e.g., ChBuOrd (Chief of the Bureau of Ordnance)

ChAer

abbreviation:  Chief Aerographer

chafing plate

nautical:  A plate fitted to take the wear due to dragging moving gear or to protect ropes from wearing where they rub on sharp edges. Also fitted on decks under anchor chains.

chain locker pipe: chain pipe

nautical:  The iron-bound opening or section of pipe leading from the chain locker to the deck, through which the chain cable passes.

chain locker

nautical:  Compartment in forward lower portion of ship in which anchor chain is stowed.

chain plate

nautical:  A bar or plate secured to the shell of a vessel to which the standing rigging is attached.

chain stopper

nautical:  A device used to secure the chain cable when riding at anchor, thereby relieving the strain on the windlass, and also for securing the anchor in the housing position in the hawsepipe.

chains

nautical:  Usually refers to heavy chains attached to the anchor. Also applied to the lower parts of standing rigging which are attached to the chain plates.

chamfer

nautical:  A bevel surface formed by cutting away the angle of two intersecting faces of a piece of material.

Chap

abbreviation:  Chapter

Char

abbreviation:  Navy Yard, Charleston

Charlie Run

glossary:  Anti-aircraft practice, in which simulated attack runs were down the side of the firing ship. Because these attack patterns were considered a "crossing" pattern, the US Navy alpha code "Charlie" run was derived as "crossing" was abbreviated to "C".

Charlie

abbreviation:  "C" in the phonetic alphabet; formerly "Cast"

chart house

nautical:  A small room adjacent to the bridge for charts and navigating instruments.

ChasGrp

abbreviation:  Charleston Group

Chasn

abbreviation:  Charleston, South Carolina

ChBosn

abbreviation:  Chief Boatswain

ChC-V(G)

abbreviation:  USNR officer designation for Chaplain qualified for general detail afloat or ashore. This classification was abolished in September 1944 and replaced by ChC or ChC(S).

ChC-V(P)

abbreviation:  USNR officer designation for seniors in theological seminaries commissioned as ensigns in probationary status and, after qualification and transfer to ChC-V(G), available for general detail ashore or afloat. This classification was abolished in September 1944 and replaced by ChC(P).

ChC-V(S)

abbreviation:  USNR officer designation for Chaplains qualified for specialist duties. This classification was abolished in September 1944 and replaced by ChC or ChC(S).

ChC

abbreviation:  USN officer designation for Chaplain Corps, USN

ChCarp

abbreviation:  Chief Carpenter

ChCk

abbreviation:  Chief Cook

CHCP

abbreviation:  USNR officer designation for probationary commission in Reserve Chaplain Corps. Formerly CHC(P).

CHCR

abbreviation:  USNR officer designation for General Service, Chaplain Corps. Formerly CHC.

CHCS

abbreviation:  USNR officer designation for Special Service, Chaplain Corps. Formerly CHC(S).

Check (Two)

orders:  Men on number (two) line take turns and take a strain on this line. Release when a strain increases and check again. This order used when it is desired to check the ship’s movement and not necessarily to stop it or to ease a parting line.

Check fire-check fire

orders:  Stop firing temporarily. All other functions of the control party and the gun crew continue. Loaded guns will remain loaded except that projectiles must not remain in hot guns; unload such guns according to ship’s doctrine. Given normally when a short period of time is desired between salvos for shifting targets, introducing spots, etc. Remain ready to resume fire instantly.

ChElec

abbreviation:  Chief Electrician

ChemBomb

abbreviation:  Chemical Bomb

Cherry Blossom

abbreviation:  See Oka

ChGun

abbreviation:  Chief Gunner

chine

nautical:  The line formed by the intersection of side and bottom in ships having straight or slightly curved frames.

chinsing

nautical:  The inserting of oakum or cotton between the plank edges of boats to secure watertightness. Also called calking.

chipper

nautical:  A workman who chips, cuts, or trims the edges of plates, shapes, castings or forgings, using either hand or pneumatic tools, in order to secure a good calking edge, fit or finish.

ChMach

abbreviation:  Chief Machinist

ChNavAirShipTra

abbreviation:  Chief of Naval Airship Training

ChNavMis

abbreviation:  Chief, U.S. Naval Mission to (Country)

chock

nautical:  A term applied to oval-shaped castings, either open of closed on top, and fitted with or without rollers, through which hawsers and lines are passed. Also applied to blocks of wood used as connecting or reinforcing pieces, filling pieces, and supports for life boats. Also applied to the brackets fitted to boiler saddles to prevent fore and aft motion and to small brackets on the webs of frames, beams and stiffeners to prevent tipping of the member.

CHOP

abbreviation:  Change of Operational Control; dividing line in North and South Atlantic Oceans for American and British control of convoy and ship movements

CHORI

abbreviation:  Chief of Office of Research and Inventions

ChPClk

abbreviation:  Chief Pay Clerk

ChPhar

abbreviation:  Chief Pharmacist

ChPhot

abbreviation:  Chief Photographer

CHQ

abbreviation:  Corps Headquarters (Army)

CHQ

abbreviation:  Corps Headquarters Company (Army)

ChQmClk

abbreviation:  Chief Quartermaster Clerk (USCG)

ChREle

abbreviation:  Chief Radio Electrician

ChSClk

abbreviation:  Chief Ship’s Clerk

CHT

abbreviation:  Chemist

ChTorp

abbreviation:  Chief Torpedoman

CHU

abbreviation:  Cable, Radio Censorship Office

CI

abbreviation:  Cirrus

CI

abbreviation:  Cost Inspector; also NCI (Naval Cost Inspector)

CIAA

abbreviation:  Coordinator of Inter-American Affairs

CIC

abbreviation:  Combat Information Center

CIC

abbreviation:  Combined Intelligence Committee

CIC

abbreviation:  Counter Intelligence Corps (G-2, Army)

CIG

abbreviation:  Central Intelligence Group

CIGS

abbreviation:  Chief of Imperial General Staff

CIMS

abbreviation:  Communications Instructions for Merchant Ships

CinC

abbreviation:  Commander-in-Chief

CINCA&WI

abbreviation:  Commander-in-Chief, Atlantic and West Indies

CinCAF

abbreviation:  Commander-in-Chief, Allied Forces

CinCAF

abbreviation:  Commander-in-Chief, US Asiatic Fleet

CinCAFPac

abbreviation:  Commander-in-Chief, US Army Forces in the Pacific

CinCAL

abbreviation:  Commander-in-Chief, Alaska

CinCBPF

abbreviation:  Commander-in-Chief, British Pacific Fleet

CinCEI

abbreviation:  Commander-in-Chief, British East Indies Station

CincFE

abbreviation:  Commander-in-Chief, Far East

CinCLANT

abbreviation:  Commander-in-Chief, US Atlantic Fleet

CinCLantFlt

abbreviation:  Commander-in-Chief, US Atlantic Fleet

CinCMed

abbreviation:  Commander-in-Chief, Mediterranean

CinCNedE

abbreviation:  Commander-in-Chief, Netherlands Forces in the East

CinCPac-CinCPoa

abbreviation:  Commander-in-Chief, US Pacific Fleet and Pacific Ocean Areas

CinCPac

abbreviation:  Commander-in-Chief, US Pacific Fleet

CinCPacFlt

abbreviation:  Commander-in-Chief, US Pacific Fleet

CinCPacHedPearl

abbreviation:  Commander-in-Chief, US Pacific Fleet Headquarters, Pearl Harbor

CinCPOA

abbreviation:  Commander-in-Chief, Pacific Ocean Areas

CinCPoaHedPearl

abbreviation:  Commander-in-Chief, Pacific Ocean Areas Headquarters, Pearl Harbor

CinCSA

abbreviation:  Commander-in-Chief, South Atlantic Station (GB)

CinCUS

abbreviation:  Commander-in-Chief, US Fleet (now, CominCh)

CIO

abbreviation:  Combat Intelligence Officer

CIOS

abbreviation:  Combined Intelligence Objectives Sub-committee

CIOS

abbreviation:  Combined Intelligence Operations Section

CIPC

abbreviation:  Combined Intelligence Priorities Committee (US, GB) (London)

Circus

abbreviation:  Mobile torpedo field unit mounted on tractors and trailers and out-fitted with air compressors, tools, testing gear and a small crew of trained personnel

CIRES

abbreviation:  Communication Instructions for Reporting Enemy Sightings

CIS

abbreviation:  Cost Inspection Service

CIT

abbreviation:  California Institute of Technology

CIT

abbreviation:  Citation

CITEJA

abbreviation:  Comité Internationale d’ Experts Juridques Aeriens

CIU

abbreviation:  Central Interpretation Unit (British Air Ministry)

CIVCLO

abbreviation:  Civilian Clothing

CJTF

abbreviation:  Commander Joint Task Force

Ck. O.

blueprints:  Countersink Other Side.

Ck.

blueprints:  Countersink.

Ck(B)

abbreviation:  Cook (Baker)

Ck(C)

abbreviation:  Cook (Commissary)

CK

abbreviation:  Check

Ck

abbreviation:  Cook

CKD

abbreviation:  Checked

CKT

abbreviation:  Circuit

CL(AA)

abbreviation:  Light Cruiser (Anti-Aircraft)

CL

abbreviation:  Light Cruiser

CL

abbreviation:  USNR officer designation for Limited General Service, Communication Duties. Formerly (C)L.

CLAC

abbreviation:  Combined Liberated Areas Committee

Clamp down

orders:  Sprinkle water on the deck and swab down. Used in the tropics to keep the decks cool. Lower deck spaces also used for periodic minor cleanups of quarter deck, companion way, etc.

clamp

nautical:  A metal fitting used to grip and hold wire ropes. Two or more may be used to connect two ropes in lieu of a short splice or in turning in an eye. Also a device, generally operated by hand, for holding two or more pieces of material together, usually called a "C" clamp. In small boats, the main longitudinal strength member at the side and under the deck beams in decked-over boats, and at the gunwale in open boats.

Clap on

orders:  

1. To seize a rope and haul away
2. To make more, as clap on sail

Class

abbreviation:  Classification

Clear for running

orders:  Ready to run out without fouling.

Clear the forecastle

orders:  To have all personnel clear the forecastle and seek shelter.

cleats

nautical:  Pieces of wood or metal, of various shapes according to their uses, usually having two projecting arms or horns upon which to belay ropes. The term Cavil is sometimes applied to a cleat of extra size and strength.

Cler

abbreviation:  Clerical

clinch

nautical:  To spread or rivet the point of a pin or bolt upon a plate or ring to prevent it from pulling out; to turn the point of a nail back into the wood to give it greater holding power.

clinometer

nautical:  An instrument used for indicating the angle of roll or pitch of a vessel.

clip

nautical:  A four- to six-inch angle bar welded temporarily to floors, plates, webs, etc. It is used as a hold-fast which, with the aid of a bolt, pulls objects up close in fitting. Also, short lengths of bar, generally angle, used to attach and connect the various members of the ship structure.

Clipper

abbreviation:  See B-314

CLN

abbreviation:  USNR officer designation. See CL and N. Formerly (C)L-N.

close butt

nautical:  A riveted joint in which the ends of the connected members are brought into metal-to-metal contact by grinding and pulling tight by clips or other means before the rivets are driven.

CLR

abbreviation:  USNR officer designation. See CL and R. Formerly (C)L-R.

CLT

abbreviation:  Clerical Technician, Medical

CLT

abbreviation:  USNR officer designation. See CL and T. Formerly (C)L-T.

CLTE

abbreviation:  Commissioned loss to enlisted status (revocation of appointment)

club-foot

nautical:  A fore foot in which displacement or volume is placed near the keel and close to the forward perpendicular, resulting in full water lines below water and fine lines at and near the designed water line, the transverse sections being bulb-shaped. Also called a bulb or bulbous bow.

CLUSA

abbreviation:  Continental Limits, United States of America

CLX

abbreviation:  USNR officer designation. See CL and X. Formerly (C)L-X.

CM&D

abbreviation:  Counter Measures and Deception (radar) (small)

CM

abbreviation:  Carpenter’s Mate

CM

abbreviation:  Centimetres

CM

abbreviation:  Chief Metalsmith

CM

abbreviation:  Controlled Mine Field

CM

abbreviation:  Countermeasure

CM

abbreviation:  Court Martial

CM

abbreviation:  Mine Layer

CMaM

abbreviation:  Chief Mailman

CMC

abbreviation:  Coastal Mine Layer

CMC

abbreviation:  Combined Meteorological Committee

CMC

abbreviation:  Commandant of the Marine Corps

CMC

abbreviation:  Merchant Marine Council (USCG)

CMCB

abbreviation:  Carpenter’s Mate, Construction Battalion

CMCBB

abbreviation:  Carpenter’s Mate, Construction Battalion, Builder

CMCBD

abbreviation:  Carpenter’s Mate, Construction Battalion, Draftsman

CMCBE

abbreviation:  Carpenter’s Mate, Construction Battalion, Excavation Foreman

CMG

abbreviation:  Chief Marine Gunner

CMH

abbreviation:  Congressional Medal of Honor

CMl

abbreviation:  Chief Moulder

CML2N

abbreviation:  Navy midget rocket engine

CMM

abbreviation:  Chief Machinist’s Mate

CMMCBE

abbreviation:  Chief Machinist’s Mate, Construction Battalion, Equipment Operation

CMMG

abbreviation:  Chief Machinist’s Mate, Industrial Gas Generating Mechanic

CMMR

abbreviation:  Chief Machinist’s Mate, Refrigeration

CMMS

abbreviation:  Chief Machinist’s Mate, Shop

CMMSRO

abbreviation:  Chief Machinist’s Mate, Ship Repair, Outside Machinist C

CMn

abbreviation:  Chief Mineman

CMO

abbreviation:  Controlled Materials Officer

CMO

abbreviation:  Court Martial Orders

CMoMM

abbreviation:  Chief Motor Machinist’s Mate

CMoMSRD

abbreviation:  Chief Motor Machinist’s Mate, Ship Repair, Diesel Engineering Mechanic

CMoMSRG

abbreviation:  Chief Motor Machinist’s Mate, Ship Repair, Gasoline Engineering Mechanic

CMP

abbreviation:  Controlled Materials Plan (of the War Production Board)

CMP

abbreviation:  Corps of Military Police (Army)

CMSR

abbreviation:  Carpenter’s Mate, Ship Repair

CMSRB

abbreviation:  Carpenter’s Mate, Ship Repair, Boatbuilder-Wood

CMSRB

abbreviation:  Chief Metalsmith, Ship Repair, Blacksmith

CMSRC

abbreviation:  Carpenter’s Mate, Ship Repair, Carpenter

CMSRC

abbreviation:  Chief Metalsmith, Ship Repair, Coppersmith

CMSRJ

abbreviation:  Carpenter’s Mate, Ship Repair, Joiner

CMSRK

abbreviation:  Carpenter’s Mate, Ship Repair, Caulker-Boat

CMSRN

abbreviation:  Carpenter’s Mate, Ship Repair, Cement Worker-Concrete

CMSRS

abbreviation:  Carpenter’s Mate, Ship Repair, Shipwright

CMSRS

abbreviation:  Chief Metalsmith, Ship Repair, Sheet Metal Worker

CMT

abbreviation:  Commissary Technician, Medical

CMT

abbreviation:  Commissary

CMTC

abbreviation:  Civilian Military Training Camp

CMTC

abbreviation:  Combined Military Transportation Committee

CMus

abbreviation:  Chief Musician

CN

abbreviation:  Chloracetophenone

CN

abbreviation:  Cuban Navy

CN

abbreviation:  USNR officer designation. See C and N. Formerly (C)-N.

CNA

abbreviation:  Canadian Northwest Atlantic (Area)

CNA

abbreviation:  Chief of Naval Air

CNAAdTra

abbreviation:  Chief of Naval Air Advanced Training (formerly CNAOpTra)

CNAB

abbreviation:  Commander Naval Air Base

CNABTra

abbreviation:  Chief of Naval Air Basic Training

CNAIntermTra

abbreviation:  Chief of Naval Air Intermediate Training (now CNABTra)

CNAIT

abbreviation:  Chief of Naval Air Intermediate Training

CNAOpTra

abbreviation:  Chief of Naval Air Operational Training (now CNAAdTra)

CNAOT

abbreviation:  Chief of Naval Air Operational Training

CNAPrimTra

abbreviation:  Chief of Naval Air Primary Training (now CNARFSTra)

CNAPT

abbreviation:  Chief of Naval Air Primary Training

CNAResTra

abbreviation:  Chief of Naval Air Reserve Training

CNAT

abbreviation:  Chief of Naval Air Training

CNATE

abbreviation:  Chief of Naval Airship Training and Experimentation

CNATec(LTA)

abbreviation:  Commander, Naval Air Technical Training (Lighter Than Air)

CNATechTra

abbreviation:  Chief of Naval Air Technical Training

CNATra

abbreviation:  Chief of Naval Air Training

CNB Ottawa

abbreviation:  Canadian Naval Board, Ottawa

CNB

abbreviation:  Commander, Naval Base

CNC

abbreviation:  Chief Naval Censor

CNC

abbreviation:  Chief of Naval Communications (formerly DNC)

CNDO

abbreviation:  Chief Navy Disbursing Officer

CNF

abbreviation:  Commander Naval Forces

CNG

abbreviation:  Commander Northern Group

CNI

abbreviation:  Chief of Naval Intelligence

CNMO

abbreviation:  Canadian Naval Mission Overseas

CNO

abbreviation:  Chief of Naval Operations (also OpNav)

CNOB

abbreviation:  Commander, Naval Operating Base

CNR

abbreviation:  Change(s) to Navy Regulations

CNS

abbreviation:  Canadian Naval Service

CNTS

abbreviation:  Chief, Naval Transportation Service; formerly DNTS

CO

abbreviation:  Coast(al)

CO

abbreviation:  Columbia River

CO

abbreviation:  Combined Operations

CO

abbreviation:  Commanding Officer

CO

abbreviation:  Communications Officer

Co

abbreviation:  Company

COAC

abbreviation:  Commanding Officer, Atlantic Coast

COAirEvacRon

abbreviation:  Commanding Officer, Air Evacuation Squadron

coaming, bulkhead

nautical:  A term applied to the top and bottom strakes of bulkheads, which are usually made thicker than the remainder of the plating and which act as girder web plates in helping to support the adjacent structure.

coaming, hatch

nautical:  A frame bounding a hatch for the purpose of stiffening the edges of the opening and forming the support for the covers. In a steel ship it generally consists of a strake of strong vertical plating completely bounding the edges of a deck opening.

coaming, house

nautical:  A term applied to the narrow vertical plates bounding the top and bottom of a deck house, made somewhat thicker than the side plating and forming a frame for the base and top of the house. Also applied to the heavy timbers which form the foundation of a wood deck house.

coaming, manhole

nautical:  The frame worked around a manhole to stiffen the edges of the plating around the opening and to provide a support for the cover.

COB

abbreviation:  Committee of Combined Boards

CoC

abbreviation:  Chief of Chaplains

COCEEE

abbreviation:  Committee on Captured Enemy Electronics Equipment

cock

nautical:  A valve which is opened or closed by giving a disc or a tapered plug a quarter turn. When a plug is used it is slotted to correspond with the ports in the valve.

cockpit

nautical:  A term used in connection with small boats to refer to an uncovered, sunken place or pit, usually for the accommodation of passengers.

CODAN

abbreviation:  Coded weather analysis

CODCAVE

abbreviation:  Committee on Decentralization of Controls after V-E Day (War Production Board)

CODIS

abbreviation:  Completed discharge

COEV

abbreviation:  Canadian Ocean Escort Vessel

Cof—

abbreviation:  Chief of — (Army)

cofferdams

nautical:  Void or empty spaces separating two or more compartments for the purpose of insulation, or to prevent the liquid contents of one compartment from entering another in the event of the failure of the walls of one to retain their tightness.

CofG

abbreviation:  Convenience of the Government

COFRON

abbreviation:  Coastal Frontier (USCG)

CofS

abbreviation:  Chief of Staff (Army)

CofT

abbreviation:  Chief of Transportation (Army)

COGARD

abbreviation:  Coast Guard

COHQ

abbreviation:  Combined Operations Headquarters

COIC

abbreviation:  Combined Operational Intelligence Center

COL

abbreviation:  College

Col

abbreviation:  Colonel

COLanForASCU

abbreviation:  Commanding Officer, Landing Force Air Support Control Unit

collar

nautical:  A piece of plate or a shape fitted around an opening for the passage of a continuous member through a deck, bulkhead, or other structure to secure tightness against oil, water, air, dust, etc.

Collective fire

orders:  The whole battery fires at the same target.

collier

nautical:  A vessel designed for the carrying of coal, which may or may not be fitted with special appliances for coal handling.

collision mat

nautical:  A large mat used to close an aperture in a vessel’s side resulting from a collision.

COLO

abbreviation:  Colorado

COLOD

abbreviation:  "Completed Loading"

Com(D)WA

abbreviation:  Commodore (Destroyers) Western Approaches (GB)

Com(location)SeaFron

abbreviation:  Commander (location) Sea Frontier; e.g., ComGuilfSeaFron

Com(No.)PhibFor

abbreviation:  Commander (No.) Amphibious Force; e.g., Com3rdPhibFor

Com

abbreviation:  Commandant; e.g., ComOne (Commandant, 1st Naval District

COM

abbreviation:  Commander; e.g., ComAirPac (Commander Air Forces, Pacific)

COM

abbreviation:  Commissioned Officers Mess

Com

abbreviation:  Common

Com

abbreviation:  Communication

ComAir

abbreviation:  Commander Air Forces

ComAir

abbreviation:  Commander Aircraft

ComAT

abbreviation:  Commodore Air Train

COMB

abbreviation:  Combined

ComBasFrance

abbreviation:  Commander United States Ports and Bases, France

COMCABCO

abbreviation:  Commercial Cable Company

ComCm

abbreviation:  Communication Countermeasures

COMD

abbreviation:  Command

COMDAC

abbreviation:  Comité d’ Action en France

ComDesDiv

glossary:  Commander Destroyer Division. A division includes 4 or 5 destroyers.

ComDesRon

glossary:  Commander Destroyer Squadron. A squadron includes 2 divisions (8 destroyers).

Comdg

abbreviation:  Commanding

ComdGen

abbreviation:  Commanding General

ComdgOf

abbreviation:  Commanding Officer

Comdr

abbreviation:  Commander

Comdt

abbreviation:  Commandant

ComdtMarCorps

abbreviation:  Commandant, U.S. Marine Corps

ComdtNOB

abbreviation:  Commandant, Naval Operating Base

ComdtNY

abbreviation:  Commandant, Navy Yard

Come right to course

orders:  Make a slight change in course; usually a change of less than fifteen degrees.

ComExDiv

abbreviation:  Commander Experimental Division

ComFair

abbreviation:  Commander Fleet Air COFT [sic] [COMFT?]

ComGen

abbreviation:  Commanding General

ComGenMed

abbreviation:  Commanding General, U.S. Army Forces, Mediterranean Theater of Operations

ComGenPOA

abbreviation:  Commanding General, U.S. Army Forces, Pacific Ocean Areas

ComGenTEN

abbreviation:  Commanding General, Tenth Army

ComGrePat

abbreviation:  Commander Greenland Patrol

ComGrpOK

abbreviation:  Commander Mine Group Okinawa

Comin

abbreviation:  Commander Minecraft

CominCh

abbreviation:  Commander-in-Chief, United States Fleet (formerly, CinCUS)

CominDiv

abbreviation:  Commander Minecraft Division

CominGrp

abbreviation:  Commander Mine Group

CominLant

abbreviation:  Commander Mine Force, Atlantic Fleet

CominPac

abbreviation:  Commander Minecraft, Pacific Fleet

CominRon

abbreviation:  Commander Mine Squadron

ComInst

abbreviation:  Communications Instructions

COMLO

abbreviation:  Combined Operations Material Liaison Officer

COMM

abbreviation:  Communications

Commander

glossary:  The commissioned navy rank above lieutenant commander and below captain; designated O-5. Abbreviated CDR.

Commando

abbreviation:  See R5C-#

ComMARIANAS

abbreviation:  Commander MARIANAS

COMMDET

Bureau of Personnel Condensation Code:  Commissioning Detail

Commence firing, commence firing

orders:  Start shooting.

Commo

abbreviation:  Commodore

Commodore

glossary:  Formerly (1862-1899, 1943-1950) the commissioned navy rank above captain and below rear admiral; designated O-7. Abbreviated COMMO. Now known as rear admiral (lower half).

Common, (High Explosive) (Illuminating) (Armor Piercing) Projectile

orders:  Directs preparation to fire the type of ammunition indicated.

COMNAS(EA)

abbreviation:  Commodore Naval Air Stations, East Africa (GB)

ComNavEastLantMed

abbreviation:  Commander U.S. Naval Forces Eastern Atlantic and Mediterranean

ComNavJap

abbreviation:  Commander Naval Activities Japan

ComNavNAW

abbreviation:  Commander U.S. Naval Forces, Northwest African Waters

ComNorPac

abbreviation:  Commander U.S. Naval Forces, Northern Pacific

Como

abbreviation:  Commodore

ComO

abbreviation:  Communications Officer

ComOrTexGru

abbreviation:  Commander Orange, Texas Group, Inactive Fleet, Atlantic Fleet

COMP

abbreviation:  Composite

companion

nautical:  The cover over a companionway.

companionway

nautical:  A hatchway or opening in a deck provided with a set of steps or ladders leading from one deck level to another for the use of personnel.

compartment

nautical:  A subdivision of space or room in a ship.

compass, gyroscopic

nautical:  The gyroscopic compass may have one or more gyroscopes. It is usually located as nearly at the rolling axis of the ship as possible and in a protected place. The directive force of a gyroscope, while 100 times more powerful than that of the magnetic needle, is still further amplified by an auxiliary electric motor sufficiently powerful to operate the compass card in azimuth. Repeater compasses, installed wherever desired about the ship, are operated by the master compass containing the gyroscopes by a simple electric follow-up system. The gyroscopic compass is not affected by magnetism from any source. It points to the true north, not the magnetic pole, and hence required no calculations for corrections. It is not affected by cargo or any type of magnetic field which may surround it and it is not disturbed by jars. It has become standard equipment in navies and is coming into more general use on commercial vessels.

compass, magnetic

nautical:  There are two kinds of magnetic compasses, the Dry Card Compass and the Liquid Compass. The Dry Compass consists essentially of a number of magnetic needles, suspended parallel to each other, and fastened to the rim of a circular disc that has a paper cover upon which are marked the points of the compass and the degrees. This card rests upon a pivot centered in the compass bowl, which in its turn is suspended by gimbals in the binnacle or stand, the latter having means for lighting the card at night and for adjustment of compass errors due to magnetism of the ship. In the Liquid Compass, the bowl is filled with alcohol and water or with oil. The needles are sealed in parallel tubes and form a framework which connects the central boss with the outer rim, the whole resting upon a pivot in the compass bowl. Upon the rim are printed the points and degrees. The liquid compass is less susceptible to vibration and shock. The "Standard Compass" on board ship is a magnetic compass.

compass, radio

nautical:  This apparatus is used to determine the direction from which a radio wave is sent and the location of the sending station. It consists of a coil of wire wound around a frame and mounted on a vertical shaft which can be rotated. The radio wave is received by the operator, being loudest when the coil is at right angles to the wave and ceasing when the coil is parallel to the wave. Positions are determined by plotting the bearings to two known sending stations. The apparatus is especially valuable when a vessel is sufficiently close to the shore to contact two sending stations.

compass

nautical:  The compass is the most important instrument of navigation in use on board ship, the path of a ship through the water depending on the efficient working and use of this instrument. There are two types of navigational compasses, the magnetic, which has long been in use, and the gyroscopic, which has been developed within recent years. The former is actuated by the earth’s magnetism, the latter by that property of a rapidly rotating body by which, when it is free to move in different directions, it tends to place its axis parallel to the earth’s axis, that is, north and south.

ComPatPlaneRepRonsPac

abbreviation:  Command Patrol Plane Replacement Squadrons Pacific

CompGenDec

abbreviation:  Comptroller General Decisions

CompoRon

abbreviation:  Composite Squadron

composite vessel

nautical:  A vessel with a metal frame and a wooden shell and decks.

Composite

abbreviation:  Combination Diesel electric and Diesel geared drive

COMPRET

Bureau of Personnel Condensation Code:  Upon completion thereof return to station

CompRon or CompoRon

abbreviation:  Composite Squadron

COMPTEM

Bureau of Personnel Condensation Code:  Upon completion of temporary duty

COMPTEMDET

Bureau of Personnel Condensation Code:  Upon completion of temporary duty detached

COMPTEMINS

Bureau of Personnel Condensation Code:  Upon completion of temporary duty under instruction

COMRATS

abbreviation:  Commuted Rations

ComRoute

abbreviation:  Commander-in-Chief, U.S. Fleet, Convoy and Routing Section

ComSerForSoPacSubCom

abbreviation:  Commander Service Force South Pacific Subordinate Command

COMSQN

abbreviation:  Communications Squadron (USMC)

CoMTBFlot

abbreviation:  Commander Motor Torpedo Boat Flotilla

CoMTBRon

abbreviation:  Commander Motor Torpedo Boat Squadron

CoMTBRonTraCent

abbreviation:  Commander Motor Torpedo Boat Squadron Training Center

ComTonGru

abbreviation:  Commander Tongue Point Group, Inactive Fleet, Pacific Fleet

ComTrainCarRonPac

abbreviation:  Commander Carrier Training Squadron, Pacific Fleet

ComUSBasFrance

abbreviation:  Commander U.S. Ports and Bases, France

ComZ or ComZone

abbreviation:  Communications Zone

Con act d

abbreviation:  Continuous active duty

CON

abbreviation:  Consul

CON

abbreviation:  United States Safety-at-Sea Committees for the Revision of the International Convention of 1929 (USCG)

CONAB

abbreviation:  Commanding Officer, Naval Advanced Base

CONAB

abbreviation:  Commanding Officer, Naval Air Base

CONAIR

abbreviation:  Commanding Officer, Naval Air Wing

CONALT

abbreviation:  Construction and repair, alteration (USCG)

CONAS

abbreviation:  Commanding Officer, Naval Air Station

CONASAERO

Bureau of Personnel Condensation Code:  These orders constitute assignment to duty in a part of the aeronautic organization of the Navy

Concentration fire

orders:  Several ships fire at a single target.

Condition 1E

glossary:  One Easy. Battle stations are manned in the event of enemy attack.

Conestoga

abbreviation:  See RB-#

Conf

abbreviation:  Confidential

Conf

abbreviation:  Confine(d), confinement

ConfBul

abbreviation:  Confidential Bulletin

Confid

abbreviation:  Confidential

CONHYDROLANT

abbreviation:  Confidential hydrographic Office Reports (Atlantic)

Conn

abbreviation:  Connecticut

CONPRESDU

Bureau of Personnel Condensation Code:  Continue Present Duty

ConRoute

abbreviation:  Convoy and Routing Section (US Fleet)

CONSOL

abbreviation:  British name for German "Sonne"; see LORAN

Const

abbreviation:  Construction

Constr

abbreviation:  Construction

Continuous aim

orders:  Direct the method of master key which consist of keeping all director optics on the target horizon at all times. The master key may then be closed at any time.

Continuous fire

orders:  The firing is not stopped for spots or corrections. Applies only to ships having automatic control of guns. Guns fire as soon as loaded, if at firing elevation. If necessary for guns to go to "loading" position then guns fire.

CONTREAT

Bureau of Personnel Condensation Code:  Continue treatment at (naval hospital or medical activity indicated)

Conv

abbreviation:  Convict (ed) (ion)

ConVAir

abbreviation:  Consolidated-Vultee Aircraft Corporation

ConvDD

abbreviation:  Converted Destroyer

CONVERS

Bureau of Personnel Condensation Code:  Connection conversion

Convn

abbreviation:  Convenience

CoP

abbreviation:  Co-Pilot

COPP

abbreviation:  Combined Operations Pilotage Party

COR

abbreviation:  Corps

CORD

abbreviation:  Coordinate (ion) (ator)

Cord

abbreviation:  Coordinating of Research and Development

cordage

nautical:  A comprehensive term for all ropes of whatever size or kind on board a ship.

COREP

abbreviation:  Combined Overload Repair Control

Coronado

abbreviation:  See PB2Y-2-3-5-5R

Corp

abbreviation:  Corporal (USMC)

Corp

abbreviation:  Corporation

Corsair

abbreviation:  See F3A-#, FG-#, F4U-#

CORT

abbreviation:  Escort

CortDiv

abbreviation:  Escort Division

COS

abbreviation:  Chief of Staff (USMC)

COSD

abbreviation:  Combined Operations Supply Depot

COSMD

abbreviation:  Combined Operations Signal Maintenance Depot

COSMO

abbreviation:  Combined Operations Signal maintenance Officer

COSO

abbreviation:  Combined Operations Signal Officer

COSSAC

abbreviation:  Chief of Staff, Supreme Allied Command

COSU

abbreviation:  Combined Operations Scout Unit (now NSU)

COTC

abbreviation:  Commander Fleet Operational Training Command

COTCLant

abbreviation:  Commander Fleet Operational Training Command, Atlantic Fleet

COTCPac

abbreviation:  Commander Fleet Operational Training Command, Pacific Fleet

COTCPacSubCom

abbreviation:  Commander Fleet Operational Training Command Pacific Subordinate Command

COTP

abbreviation:  Captain of the Port (USCG)

cotter, key

nautical:  A solid key or wedge used to secure a wheel on a shaft or the like.

cotter, spring

nautical:  A round split pin used to lock a nut on a bolt. The pin is passed through a hole in the bolt outside of the nut and the ends of the pin opposite its head are forced apart by a chisel or similar tool, thus preventing the cotter from slipping out.

counter

nautical:  That part of a ship’s stern which overhangs the stern post, usually that part above the water line.

countersink

nautical:  A term applied to the operation of cutting the sides of a drilled or punched hole into the shape of the frustrum of a cone. Also applied to the tool with which countersinking is done.

countersunk hole

nautical:  A hole tapered or beveled around its edge to allow a rivet or bolt head or a rivet point to seat flush with or below the surface of the riveted or bolted object.

countersunk rivet

nautical:  A rivet driven flush on one or both sides.

coupling

nautical:  A device for securing together the adjoining ends of piping, shafting, etc., in such a manner as will permit disassembly whenever necessary. Flanges connected by bolts and pipe unions are probably the most common forms of couplings.

COUSNAB

abbreviation:  Commander of U.S. Naval Advanced Base (Weser River, Germany)

COUSS--

abbreviation:  Commanding Officer, United States Ship (name of ship)

COX

abbreviation:  Coxswain

CoxCBS

abbreviation:  Coxswain, Construction Battalion, Stevedore

CoxSRR

abbreviation:  Coxswain, Ship Repair, Rigger

CoxSRS

abbreviation:  Coxswain, Ship Repair, Canvasman

Coxswain

glossary:  The special rating used in lieu of “Boatswain’s Mate Third Class” until 1948. Abbreviated COX.

Coy

abbreviation:  Company (USMC)

CP

abbreviation:  Cable Censor

CP

abbreviation:  Catapult

CP

abbreviation:  Command Post (Army)

CP

abbreviation:  Communication Personnel (USMC)

CPA

abbreviation:  Civilian Production Administration

CPAD

abbreviation:  Central Pay Accounts Division

CPC

abbreviation:  Chief Pay Clerk

CPC

abbreviation:  Chief Planning and Control Staff (USCG)

CPC

abbreviation:  Crafts, protective and Custodial Series (Civil Service employees designation)

CPCU

abbreviation:  Custody Pending Completion of Use

CPD

abbreviation:  Central Procurement Division (USMC)

CPD

abbreviation:  Counter-Propaganda Directorate (GB)

CPFF

abbreviation:  Cost plus fixed fee

CPhM

abbreviation:  Chief Pharmacist’s Mate

CPhMDP

abbreviation:  Chief Pharmacist’s Mate, Dental Prosthetic Technician

CPho

abbreviation:  Chief Photographer

CPhoM

abbreviation:  Chief Photographer’s Mate

CPI

abbreviation:  Public Information Division (USCG)

CPIC

abbreviation:  Combined Photographic Interpretation Center

CPL&D

abbreviation:  Civilian Personnel Letters and Dispatches

Cpl

abbreviation:  Corporal

CPM

abbreviation:  Chief Patternmaker

CPO

abbreviation:  Chief Petty Officer

CPR

abbreviation:  Program Planning Division (USCG)

CPRB

abbreviation:  Combined Production and Resources Board (US & GB) (Washington)

CPrtr

abbreviation:  Chief Printer

CPrtrL

abbreviation:  Chief Printer, Lithographer

CPrtrM

abbreviation:  Chief Printer, Offset Process

CPS

abbreviation:  Combined Staff Planners

Cps

abbreviation:  Cycles per second

CPtr

abbreviation:  Chief Painter

CPtrV

abbreviation:  Chief Painter, Aircraft

CPX

abbreviation:  Command Post Exercise (Army)

CQM

abbreviation:  Chief Quartermaster

CQMC

abbreviation:  Chief Quartermaster Clerk

CQTU

abbreviation:  Carrier Qualification Training Unit

CR

abbreviation:  Camera Repairman

CR

abbreviation:  Creditable record

CR

abbreviation:  Cryptographer

CR

abbreviation:  Heavy or Light Cruiser (GB)

CR

abbreviation:  USNR officer designation. See C and R. Formerly (C)-R

CRA

abbreviation:  Air-Sea Rescue Agency (USCG)

CRA

abbreviation:  Craft

Cra

abbreviation:  Cramp Shipbuilding Company

CRACC

abbreviation:  Communication and Radar Assignment Coordinating Committee

cradle, boat

nautical:  The heavy wood or metal supports for a ship’s boat, cut to fit the shape of the hull of the boat and usually faced with leather, in which the boat is stowed.

cradle, launching

nautical:  The structure of wood, or wood and steel, which is built up from the sliding ways, closely fitting the shell plating, which supports the weight of the ship and distributes it to the sliding ways when a ship is being launched. The extent of the cradle and the number of sections into which it may be divided depends on the weight and length of the ship.

cradle, marine railway

nautical:  The carriage on which the ship rests when being docked on a marine railway.

cradle

nautical:  A support of wood or metal shaped to fit the object which is stowed upon it.

CRAG

abbreviation:  Carrier Replacement Air Group

crane

nautical:  A machine used for hoisting and moving pieces of material or portions of structures or machines that are either too heavy to be handled by hand or cannot be handled economically by hand. Bridge, gantry, jib, locomotive, and special purpose cranes are used in shipyards.

CRC

abbreviation:  Central Requirements Committee

CRC

abbreviation:  Combined Rubber Committee

CRdM

abbreviation:  Chief Radarman

CRE

abbreviation:  Chief Radio Electrician

CRED

abbreviation:  Credit

CRF

abbreviation:  Cryptographic Repair Facility

cribbing

nautical:  Foundations of heavy blocks and timbers for supporting a vessel during the period of construction.

CRIME

abbreviation:  Censorship Records and Information, middle East

CRM

abbreviation:  Chief Radioman

CRMB

abbreviation:  Combined Raw Materials Board (US & GB) (Washington)

CRO

abbreviation:  Cathode Ray Oscilloscope

CRO

abbreviation:  Civilian Repair Organization, Aircraft

cross trees

nautical:  A term applied to athwartship pieces fitted over the trees on a mast. They serve as a foundation for a platform at the top of a mast or as a support for outriggers.

cross-spall

nautical:  A temporary horizontal timber brace to hold a frame in position. Cross-spalls are replaced later by the deck beams.

Cross

abbreviation:  Red Cross

crow’s nets

nautical:  A lookout station attached to or near the head of a mast.

crown

nautical:  Term sometimes used denoting the round-up or camber of a deck. The crown of an anchor is located where the arms are welded to the shank.

CRPM

abbreviation:  Combined Registered Publication Memoranda

CRPM

abbreviation:  Communication Registered Publication Memoranda

CRT

abbreviation:  Cathode Ray Tube

CRT

abbreviation:  Chief Radio Technician

CRU

abbreviation:  Cruiser

CruBatFor

abbreviation:  Cruisers, Battle Force

CruDiv

abbreviation:  Cruiser Division

cruiser

nautical:  A high speed vessel designed to keep at sea for extended periods and in which protection against gun fire is subordinated to speed and long radius of action. Light cruisers and heavy cruisers are so designated in accordance with the calibre of the guns carried. Used largely for scouting and convoy work.

CRUIT

abbreviation:  Recruit(ing)

CruitSta

abbreviation:  Recruiting Station

CruLant

abbreviation:  Cruisers, Atlantic Fleet

CruLantFlt

abbreviation:  Cruisers, Atlantic Fleet

CruPac

abbreviation:  Cruisers, Pacific Fleet

CruPacFlt

abbreviation:  Cruisers, Pacific Fleet

CruScoFor

abbreviation:  Cruiser Scouting Force

CruScoRon

abbreviation:  Cruiser Scouting Squadron

crutch

nautical:  A term applied to a support for a boom. Also applied to the jaw of a boom or gaff.

CRWO

abbreviation:  Coding Room Watch Officer

Crypto

abbreviation:  Cryptographic

CS (number)

abbreviation:  Admiral Commanding (number) Cruiser Squadron

CS

abbreviation:  Cirrostratus

CS

abbreviation:  Coco Solo, Canal Zone

CS

abbreviation:  Commissary Store

CSA

abbreviation:  Chief Special Artificer

CSA

abbreviation:  Consular Shipping Adviser

CSAB

abbreviation:  Combined Shipping Adjustment Board (US & GB)

CSAD

abbreviation:  Chief Special Artificer, Synthetic Training Devices

CSAI

abbreviation:  Chief Special Artificer, Instruments

CSAITR

abbreviation:  Chief Special Artificer, Instruments, Typewrite and Office Equipment Repairman

CSAIWR

abbreviation:  Chief Special Artificer, Instruments, Watch Repairman

CSAO

abbreviation:  Chief Special Artificer, Optical

CSC

abbreviation:  Civil Service Commission

CSC

abbreviation:  Combined Shipbuilding Committee

CSClk

abbreviation:  Chief Ship’s Clerk

CSDIC NOI

abbreviation:  Combined Services Detailed Interrogation Center — Non-Operational Intelligence

CSDIC

abbreviation:  Combined Services Detailed Interrogation Center

CSF

abbreviation:  Caribbean Sea Frontier

CSF

abbreviation:  Chief Shipfitter

CSFCBM

abbreviation:  Chief Shipfitter, Construction Battalion, Mechanical Draftsman

CSFCBP

abbreviation:  Chief Shipfitter, Construction Battalion, Pipefitter and Plumber

CSFCBR

abbreviation:  Chief Shipfitter, Construction Battalion, Rigger

CSFCBW

abbreviation:  Chief Shipfitter, Construction Battalion, Welder

CSFCVS

abbreviation:  Chief Shipfitter, Construction Battalion, Steel Worker

CSFPSC

abbreviation:  Commander, Subordinate Command, Service Force, Pacific Fleet

CSFSR

abbreviation:  Chief Shipfitter, Ship Repair

CSFSRP

abbreviation:  Chief Shipfitter, Ship Repair, Pipe Fitter and Plumber

CSFSRW

abbreviation:  Chief Shipfitter, Ship Repair, Welder

CSHS

abbreviation:  Chief Superintendent of Hydrographic Supplies

CSigO

abbreviation:  Chief Signal Officer (Army)

CSk

abbreviation:  Chief Storekeeper

CSkCB

abbreviation:  Chief Storekeeper, Construction Battalion, Stevedore

CSkD

abbreviation:  Chief Storekeeper, Disbursing

CSkT

abbreviation:  Chief Storekeeper, Technical

CSkV

abbreviation:  Chief Storekeeper, Aviation

CSM

abbreviation:  Chief Signalman

CSM

abbreviation:  Commodore Superintendent, Malta (GB)

CSO

abbreviation:  Communication Standing Order

CSoM

abbreviation:  Chief Sonarman

CSomH

abbreviation:  Chief Sonarman, Harbor Defense

CSp

abbreviation:  Chief Specialist

CSP

abbreviation:  Combined Staff Planners

CSP

abbreviation:  Communications Security Publication

CSpA

abbreviation:  Chief Specialist, Physical Training Instructor

CSPM

abbreviation:  Communication Security Publication Memorandum

CSpMP

abbreviation:  Chief Specialist, Motion Picture Production

CSpO

abbreviation:  Chief Specialist, Petroleum Inspector

CSpPBL

abbreviation:  Chief Specialist, Laboratory

CSpPPG

abbreviation:  Chief Specialist, Photogrammetry

CSpPVM

abbreviation:  Chief Specialist, V-Mail

CSpR

abbreviation:  Chief Specialist, Graphic Arts

CSpR

abbreviation:  Chief Specialist, Identification

CSpR

abbreviation:  Chief Specialist, Recruiter

CSpS

abbreviation:  Chief Specialist, Personnel Supervisor V-10

CSpS

abbreviation:  Chief Specialist, Shore Patrol and Security

CSpT

abbreviation:  Chief Specialist, Teacher

CSpTLT

abbreviation:  Chief Specialist, Link Trainer Instructor

CSpV

abbreviation:  Chief Specialist, Transport Airman

CSpW

abbreviation:  Chief Specialist, Chaplain’s Assistant

CSpX

abbreviation:  Chief Specialist, All Designators

CSpY

abbreviation:  Chief Specialist, Control Tower Operator

CSSA

abbreviation:  Clothing and Small Stores Account

CSSF

abbreviation:  Clothing and Small Stores Fund

CSSM

abbreviation:  Chief Ship’s Service Man

CSSMB

abbreviation:  Chief Ship’s Service Man, Barber

CSSMC

abbreviation:  Chief Ship’s Service Man, Cobbler

CSSML

abbreviation:  Chief Ship’s Service Man, Laundryman

CSSMT

abbreviation:  Chief Ship’s Service Man, Tailor

CSt

abbreviation:  Chief Steward

CT

abbreviation:  Cartographer

CT

abbreviation:  Chief Telegrapher

CT

abbreviation:  Combat Team

CT

abbreviation:  Crystal Grinders

CT

abbreviation:  USNR officer designation. See C and T. Formerly (C)-T.

CTC

abbreviation:  Chief Turret Captain

CTC

abbreviation:  Combined Training Center

CTCLS

abbreviation:  Court of Claims

CTD

abbreviation:  Commander Transportation Division

CTF

abbreviation:  Central Task Force

CTF

abbreviation:  Commander Task Force

CTG

abbreviation:  Commander Task Group

CTM

abbreviation:  Chief Torpedoman’s Mate

CTME

abbreviation:  Chief Torpedoman’s Mate, Electrical

CTMV

abbreviation:  Chief Torpedoman’s Mate, Aviation

CTorp

abbreviation:  Chief Torpedoman

CTU

abbreviation:  Commander Task Unit

CU

abbreviation:  Cumulus

CU

abbreviation:  New York to Netherlands West Indies (routing designation)

CU

abbreviation:  New York to United Kingdom (routing designation)

Cub

abbreviation:  An advanced base unit consisting of all the personnel and material necessary for the establishment of a medium sized advanced fuel and supply base

CUCB

abbreviation:  Cumulus and Cumulonimbus

cuddy

nautical:  A galley structure on deck; a small cabin.

CUDWR

abbreviation:  Columbia University Division of War Research

Cur

abbreviation:  Curtis design (ship engines)

CUS

abbreviation:  Course

Cut in steam and exhaust to the anchor engine

orders:  Order given by the Officer of the Watch that valves in the steam and exhaust lines leading to the anchor engine are to be opened in preparation for using the anchor engine.

CUT

abbreviation:  Cutter

cutwater

nautical:  The forward edge of the stem at or near the water line is called the cutwater.

CV

abbreviation:  Aircraft Carrier

CV

abbreviation:  Cavite, P.I. (Navy Yard)

CVAC

abbreviation:  Consolidated-Vultee Aircraft Corporation

CVB

abbreviation:  Aircraft Carrier, Large

CVB

abbreviation:  Reserve Vessel Board (USCG)

CVE

abbreviation:  Aircraft Carrier, Escort

CVL

abbreviation:  Aircraft Carrier, Small

CVLG(N)

abbreviation:  Night Fighter Air Group

CVS

abbreviation:  Seaplane Carrier

CW

abbreviation:  Chemical Warfare

CW

abbreviation:  Continuous Wave (radio symbol for code transmission) CWA

CWO

abbreviation:  Commissioned Warrant Officer

CWO

abbreviation:  Communications Watch Officer

CWPI

abbreviation:  Coast Watching and Communications in the South Pacific Islands (GB)

CWS

abbreviation:  Chemical Warfare Service (Army)

CWSF

abbreviation:  Commander Western Sea Frontier

CWT

abbreviation:  Chemical Warfare Specialist, Medical

CWT

abbreviation:  Chief Water Tender

CX

abbreviation:  USNR officer designation. See C and X. Formerly (C)-X.

CY

abbreviation:  Chief Yeoman

Cyclone

abbreviation:  Naval aircraft engine, 9 (14)(18) cylinders, manufactured by Wright

CZ

abbreviation:  Combat Zone (Army)

CZ

abbreviation:  Panama Canal Zone

D-Day

abbreviation:  Day set for assault by land forces

D-M

abbreviation:  USNR designation for deck officers, Merchant Marine, commissioned and warrant, including boatswains, qualified for deck or appropriate administrative duties. This classification was abolished in September 1944 and replaced by (DM), (DM)L, or S(DM).

D-Minus 1, etc.

abbreviation:  D-day minus 1, 2, etc. days (before attack)

D-plus 1, etc.

abbreviation:  D-Day plus 1, 2, etc. days (after attack)

D-V(G)

abbreviation:  USNR designation for deck officers, commissioned and warrant, including boatswains, gunners, and torpedomen, qualified for general detail afloat or ashore. This classification was abolished in September 1944 and replaced by (D) or (D)L.

D-V(G)

glossary:  U.S.N.R. designation for deck officers, commissioned and warrant, including boatswains, gunners, and torpedomen, qualified for general detail afloat or ashore. This classification was abolished in September 1944 and replaced by (D) or (D)L.

D-V(S)

abbreviation:  USNR designation for deck officers, commissioned and warrant, including boatswains and ship’s clerks, qualified for specialist duties. This classification was abolished in September 1944 and replaced by (D), (D)l, (S), or S with proper special designator suffix.

D-V(S)

glossary:  U.S.N.R. designation for deck officers, commissioned and warrant, including boatswains and ship’s clerks, qualified for specialist duties. This classification was abolished in September 1944 and replaced by (D), (D)l, (S), or S with proper special designator suffix.

D. T.

blueprints:  Dust Tight.

D(No.)

abbreviation:  Commanding Officer (number) Destroyer Flotilla

D/R

abbreviation:  Dead Reckoning

D/R

abbreviation:  Directional Radio

D/R

abbreviation:  Dispatch Rider (USMC)

D/S

abbreviation:  Detached Service (Army)

D/S

abbreviation:  Direct Support Army)

D

abbreviation:  Douglas Aircraft Company (manufacturer’s symbol)

D

abbreviation:  Droppable Fuel Tank (suffix to plane designation); as F4U-1D

D

abbreviation:  Duty

D

abbreviation:  First letter in the Navy aircraft designation, indicating a drone plane

D

abbreviation:  McDonnell Aircraft Corporation (manufacturer’s symbol)

D

abbreviation:  Radioplane Company (manufacturer’s symbol)

D

abbreviation:  USNR officer designation for General Service, Deck Duties. Formerly (D).

DA

abbreviation:  Defense Aid (Lend Lease) (appropriation title)

DA

abbreviation:  Delayed Action

DA

abbreviation:  Direct Action (Bomb Fuze)

DA

abbreviation:  Double Acting

DAA&AM

abbreviation:  Defense Aid (Lend Lease) Aircraft and Aeronautical Material

DAAE

abbreviation:  Defense Aid (Lend Lease) Administration Expenses

DAAI&OC

abbreviation:  Defense Aid (Lend Lease) Agricultural, Industrial and Other Commodities

DABLC

abbreviation:  Director, Advanced Base Logistics Control

DABOA

abbreviation:  Director, Advanced Base Office, Atlantic

DABOP

abbreviation:  Director, Advanced Base Office, Pacific

DAF&E

abbreviation:  Defense Aid (lend Lease) Facilities and Equipment

dagger plank

nautical:  One of the planks which unite the heads of the poppets or stepping-up pieces of the cradle on which the vessel rests in launching.

dagger

nautical:  A piece of timber that is fastened to the poppets of the bilgeway and crosses them diagonally to keep them together. Dagger applies to anything that stands in a diagonal position in a fore and aft plane.

DAGO

abbreviation:  District Aviation Gas Office

DAM

abbreviation:  Damage

DAMR(W)

abbreviation:  Director of Aircraft Maintenance and Repair (Washington)

DAO&OS

abbreviation:  Defense Aid (Lend Lease) Ordnance and Ordnance Stores

DAO

abbreviation:  District Accounting Office(r)

DAO

abbreviation:  District Ammunition Office (Army)

DAO

abbreviation:  District Aviation Office(r)

Darken ship

orders:  Extinguish lights in accordance with ship’s "DARKEN SHIP" instructions.

DAS&E

abbreviation:  Defense Aid (Lend Lease) Services and Expenses

DASF

abbreviation:  Defense Aid (Lend Lease) Special Fund

DAT&OV

abbreviation:  Defense Aid (Lend Lease) Tanks and Other Vehicles

DATO

abbreviation:  Disbursing and Transportation Office

DATRDA

abbreviation:  Defense Aid (Lend Lease) Testing, Reconditioning etc. of Defense Articles

Dauntless

abbreviation:  See SBD-#

DAV&OW

abbreviation:  Defense Aid (Lend Lease) Vessels and Other Watercraft

davit

nautical:  A device used to lower and raise ship’s boats and sometimes for other purposes. The rotary, or most common type, consists of a vertical pillar, generally circular in section, with the upper portion bent in a fair curve and having sufficient outreach to clear the side of the ship plus a clearance. Each ship’s boat has two davits, one near its bow and one near its stern; they both rotate, lifting the boat, by means of blocks and falls suspended from the overhanging end, from its stowage position on deck and swinging it clear of the ship’s side. This type of davit is usually stepped in a socket attached to the side of the vessel or on the deck next below the boat deck near the side and held in place at the boat deck by a keeper or bearing.

DB or D/B

abbreviation:  Dive Bomber Aircraft

Db

abbreviation:  Decibell (unit of measure)

DBH

abbreviation:  Division Beachhead (Army)

Dbl

abbreviation:  Double Reduction Gears

DBSO

abbreviation:  District Base Service Office

DC-V(G)

abbreviation:  USNR designation for dental officers qualified for general detail afloat or ashore. This classification was abolished in September 1944 and replaced by DC or DC(S).

DC-V(S)

abbreviation:  USNR designation for dental officers qualified for specialist duties. This classification was abolished in September 1944 and replaced by DC or DC(S).

DC

abbreviation:  "Daisy Cutter"

DC

abbreviation:  Deck Court

DC

abbreviation:  Dental Corps

DC

abbreviation:  Depth Charge (aerial)

DC

abbreviation:  Direct Current

DC

abbreviation:  District of Columbia

DC

abbreviation:  USN officer designation for Dental Corps, USN

DC

abbreviation:  Washington, D.C.

DCA

abbreviation:  Defense Contre Avion (France)

DCB

abbreviation:  Defense Communications Board

DCC

abbreviation:  District Communications Center

DCCAO

abbreviation:  Deputy Chief Civil Affairs Officer (US and GB)

DCGO

abbreviation:  District Coast Guard Officer; DCGO, one, two, etc.: DCGO 1st, 2nd, etc. Naval District

DCh

abbreviation:  Depth Charge

DCh

abbreviation:  District Chaplain

DCNO

abbreviation:  Deputy Chief of Naval Operations

DCNS

abbreviation:  Deputy Chief of Naval Staff (USMC)

DCO(I)

abbreviation:  Director of Combined Operations (India)

DCO(ME)

abbreviation:  Director of Combined Operations (Middle East)

DCO

abbreviation:  District Camouflage Office(r)

DCO

abbreviation:  District Clothing Office(r)

DCO

abbreviation:  District Communications Office(r)

DCO

abbreviation:  Duty Cypher Officer (GB)

DCofS

abbreviation:  Deputy Chief of Staff

DCP

abbreviation:  Director of Civilian Personnel

DCPB

abbreviation:  Departmental Civilian Personnel Branch

DCPO

abbreviation:  District Civilian Personnel Office(r)

DCR

abbreviation:  USNR officer designation for General Service, Dental Corps. Formerly DC.

DCRO

abbreviation:  District Civil Readjustment Office(r)

DCS

abbreviation:  USNR officer designation for Special Service, Dental Corps. Formerly DC(S).

DCW

abbreviation:  USNR officer designation for Women’s Reserve, Dental Corps. Formerly DC(W).

DD

abbreviation:  Destroyer

DD

abbreviation:  Dishonorable Discharge

DD

abbreviation:  Drydock

DDAS (ET)

abbreviation:  Deputy Director of Armament Supply (Eastern Theatre)

DDCO (I)

abbreviation:  Deputy Director of Combined Operations (India)

DDD

abbreviation:  Diesel direct drive

DDGC

abbreviation:  Dishonorable Discharge, General Court Martial, after confinement in prison

DDGI

abbreviation:  Dishonorable Discharge, General Court Martial, immediate

DDGP

abbreviation:  Dishonorable Discharge, General Court Martial, after violation of probation

DDO

abbreviation:  Destroyers, Disbursing Office

DDO

abbreviation:  District Dental Office(r)

DDODI

abbreviation:  Deputy Director Operation Division Irregular (British Admiralty)

DDT

abbreviation:  Dichloro-Dophenyl-Trichloroethane; an insecticide

DDTO

abbreviation:  District Domestic Transportation Office(r)

DE-M

abbreviation:  USNR designation for Deck and Engineer Officers, Merchant Marine, qualified for Deck and Engineering or other appropriate duties. This classification was abolished in September 1944 and replaced by (DEM) or S(DEM).

DE-V(G)

abbreviation:  USNR designation for deck and engineer officers qualified for general detail afloat or ashore. This classification was abolished in September 1944 and replaced by (DE)

DE-V(S)

abbreviation:  USNR designation for deck and engineer officers qualified for specialist duties. This classification was abolished in September 1944 and replaced by one of the following: (D), (D)L, (E), (E)L, (DE), (S), S(E), or S(E) with proper numeral indicating particular specialty within engineering

DE

abbreviation:  Destroyer Escort

DE

abbreviation:  Double-ended, cylindrical boiler

DE

abbreviation:  USNR officer designation for General Service, Deck and Engineering Duties. Formerly (DE).

dead eye

nautical:  See "Blind Pulley".

dead flat

nautical:  The midship portion of a vessel throughout the length of which a constant shape of cross section is maintained.

dead rise

nautical:  The angle which the straight portion of the bottom of the floor of the midship section makes with the base line. It is expressed by the number of inches rise above the base line in the half-beam of the vessel.

deadlight

nautical:  A applied to a port lid or cover; a metal shutter fitted to protect the glass in a fixed or port light. Often incorrectly applied to a fixed light in a deck, bulkhead or shell.

deadweight cargo

nautical:  The number of tons remaining after deducting from the deadweight the weight of fuel, water, stores, dunnage, and crew and their effects necessary for use on a voyage. Also called "useful" or "paying deadweight", "deadload", and "burden".

deadweight

nautical:  The difference between the light displacement and the full load displacement of a vessel; the total weight of cargo, fuel, water, stores, passengers, and crew and their effects that a ship can carry when at her maximum allowable draft.

deadwood

nautical:  The reinforcing structure built in between the keel and keelson in the after body of a ship or back of the joint between the stem and the keel in the fore body.

Dec

abbreviation:  December

Decca (QM)

abbreviation:  British Long Range Radio Aid to Navigation

deck bolt

nautical:  A special type of bolt used to secure the planks of a wood deck to the frames or deck plating.

deck heights

nautical:  The vertical distance between the molded lines of two adjacent decks.

deck house

nautical:  A term applied to a partial superstructure that does not extend from side to side of a vessel as do the bridge, poop, and forecastle.

deck line

nautical:  See "Beam line".

deck machinery

nautical:  A term applied to capstans, windlasses, winches, and miscellaneous machinery located on the deck of a ship.

deck planks, or planking

nautical:  A term applied to the wood sheathing or covering on a deck. Oregon pine, yellow pine, and teak are most commonly used. The seams between the planks should be thoroughly caulked.

deck plating

nautical:  A term applied to the steel plating of a deck.

deck stringer

nautical:  The strip of deck plating that runs along the outer edge of a deck.

deck, bulkhead

nautical:  The uppermost continuous deck to which all main transverse bulkheads are carried. This deck should be watertight to prevent flooding adjacent compartments if a compartment is bilged.

deck, freeboard

nautical:  The deck to which the classification societies require the vessel’s freeboard to be measured. Usually the upper strength deck.

deck, turtle

nautical:  A term applied to a weather deck that is rounded over from the shell of the ship so that it has a shape similar to the back of a turtle. Used on ships of the whaleback type and on the forward weather deck of torpedo boats.

deck

nautical:  A deck in a ship corresponds to a floor in a building. It is the plating, planking, or covering of any tier of beams above the inner bottom forming a floor, either in the hull or superstructure of a ship. Decks are designated by their location as upper deck, main deck, etc., and forward lower deck, after superstructure deck, etc. The after portion of a weather deck was formerly known as the quarter deck and on warships is allotted to the use of the officers.

Decl

abbreviation:  Declared

DEDD

abbreviation:  Diesel electric direct drive

deep floors

nautical:  A term applied to the floors at the ends of a ship which are deeper than the standard depth of floor at amidships.

deep tanks

nautical:  Tanks extending from the bottom or inner bottom of a vessel up to or higher than the lowest deck. They are fitted with hatches so that they may be used for cargo when the vessel is loaded in lieu of the ballast water carried when the vessel is "light." They are placed at either end or both ends of the machinery space as deemed necessary.

deep waterline

nautical:  The waterline at which the vessel floats when carrying the maximum allowable load.

DEF

abbreviation:  Defense

DefSec

abbreviation:  Defense Sector

Deg and Dep

abbreviation:  Degaussing and Deperming

Deg Range

abbreviation:  Degaussing Range

Deg

abbreviation:  Degree(s)

DEL

abbreviation:  Delaware

Del

abbreviation:  Deliver(ed)

DEL

abbreviation:  Delivery

DELREP

Bureau of Personnel Condensation Code:  Authorized to delay (number of days indicated or until date indicated) in reporting in compliance with these orders, such delay to count as leave. Keep BuPers and new station advised address.

DEM Bomb

abbreviation:  Demolition Bomb

DEM

abbreviation:  USNR officer designation for General Service, Deck and Engineering, Merchant Marine. Formerly (DEM).

DEML

abbreviation:  Detached Enlisted Men’s List (Army)

DEMN

abbreviation:  USNR officer designation. See DEM and N. Formerly (DEM)-N.

DEMO

abbreviation:  Demolition

DEMOB

abbreviation:  Demobilization

DEMR

abbreviation:  USNR officer designation. See DEM and R. Formerly (DEM)-R.

DEMS School

abbreviation:  Defensively Equipped Merchant Ship School (British)

DEMT

abbreviation:  USNR officer designation. See DEM and T. Formerly (DEM)-T.

DEMX

abbreviation:  USNR officer designation. See DEM and X. Formerly (DEM)-X.

DEN

abbreviation:  USNR officer designation. See DE and N. Formerly (DE)-N.

DEO

abbreviation:  District Engineer Officer (Army)

DEP

abbreviation:  Deposit

DEP

abbreviation:  Depot

DEPEND

abbreviation:  Allotment for support of dependents

DepermSta

abbreviation:  Deperming and Flashing Station

Dept

abbreviation:  Department

depth charge & K-guns

glossary:  Two racks of 600 pound depth charges were located on the fantail. Each rack contained eight depth charges. These weapons were rolled off the back of ship and into the water. The ship had to be moving above a certain speed to avoid damage from explosion. The K-guns launched a 300-pound depth charge through the air, away from the ship, before dropping into the water. There were three K-guns on each side of the ship. Each K-gun had one charge in launch position with four refills nearby.

depth molded

nautical:  The vertical distance from the molded base line to the top of the uppermost strength deck beam at side, measured at mid-length of the vessel.

DER

abbreviation:  USNR officer designation. See DE and R. Formerly (DE)-R.

DERD

abbreviation:  Diesel electric reduction drive

derrick

nautical:  A device consisting of a kingpost, boom with variable topping lift, and necessary rigging for hoisting heavy weights, cargo, etc.

DES EFF

abbreviation:  Deserter’s Effects

Des

abbreviation:  Desert(ed), Deserter, Desertion

DES

abbreviation:  Destroyer

DesAF

abbreviation:  Destroyers, Asiatic Fleet

DesBatFor

abbreviation:  Destroyer Battle Force

DescoFor

abbreviation:  Destroyer Scouting Force

DesCruPac

abbreviation:  Destroyers/Cruisers, Pacific Fleet

DesDiv

abbreviation:  Destroyer Division

DesFlot

abbreviation:  Destroyer Flotilla

Desig NAP

abbreviation:  Designated as Naval Aviation Pilot (USMC)

Desig

abbreviation:  Designate(d), Designation

DESIG

Bureau of Personnel Condensation Code:  To such (ship, station, or duty) as may be designated (type duty to precede phrase "DESIG"). For example, "LST DESIG" would read "To such LST as may be designated."

DesLant

abbreviation:  Destroyers, Atlantic Fleet

DESO

abbreviation:  District Educational Services Officer

DESOIL

abbreviation:  Diesel Oil

DesPac

abbreviation:  Destroyers, Pacific Fleet

DesRep

abbreviation:  Destroyer Repair

DesRep

abbreviation:  Destroyer Representative

DesRon

abbreviation:  Destroyer Squadron

DesSoWesPac

abbreviation:  Destroyers, Southwest Pacific Fleet

DESTN

abbreviation:  Destination

destroyer

nautical:  A naval vessel of small displacement and high speed, armed with light, rapid-fire guns and deck torpedo tubes, used for convoy and scouting work and as a protection to capital ships [originally "torpedo boat destroyer"]. Larger vessels of this type are called destroyer leaders.

Det d

abbreviation:  Detached duty

DET

abbreviation:  Absent on detached duty (serving with other than a naval activity)

DET

abbreviation:  Detachment

DET

abbreviation:  Detail

DET

abbreviation:  Long Hull, General Motors Tandem Diesel Drive

DET

abbreviation:  USNR officer designation. See DE and T. Formerly (DE)-T.

DEV

abbreviation:  Development

Devastator

abbreviation:  See TBD-#

DEX

abbreviation:  USNR officer designation. See DE and X. Formerly (DE)-X.

DEY

abbreviation:  Deputy

DF or D/F

abbreviation:  Direction Finder (radio)

DF

abbreviation:  Delay Fuse

DFC

abbreviation:  Distinguished Flying Cross

DFCO

abbreviation:  Duty Flying Control Officer

DFSB

abbreviation:  Defense Force Section Base

DFT

abbreviation:  Director, Fleet Training

DG-MG

abbreviation:  Diesel geared-Motor geared

DG

abbreviation:  Degaussing

DGD

abbreviation:  Diesel geared drive

DGO

abbreviation:  Degaussing Officer

DGRO

abbreviation:  Degaussing Range Officer

DGT

abbreviation:  Dental Technology General

DGTO

abbreviation:  Degaussing Technical Officer

DGWO

abbreviation:  Degaussing Wiping Officer

DHIRS

abbreviation:  District Headquarters Induction and Recruiting Station (USMC)

DHO

abbreviation:  District Historical Office(r)

DHQ

abbreviation:  Division Headquarters (Army)

DI/ES

abbreviation:  Vessels disposed of by sinking, burning, abandoning or other means of destruction

DI/FLC

abbreviation:  Vessels in Forward Areas transferred to State Department (Foreign Liquidation Corporation) for disposition

DI/INT

abbreviation:  Vessels under cognizance of the Commandants Tenth and Fourteenth Naval Districts transferred to the Department of the Interior for disposition

DI/RET

abbreviation:  Vessels returned to their original owners

DI/SAL

abbreviation:  Vessels disposed of by sale through Navy Material Redistribution Agency

DI/SCP

abbreviation:  Vessels disposed of by scrapping

DI/TES

abbreviation:  Vessels disposed of by using as targets and tests

DI/TRN

abbreviation:  Vessels transferred to other Government Agencies and miscellaneous activities

DI/WSA

abbreviation:  Vessels transferred to War Shipping Administration — Maritime Commission for disposition

DI

abbreviation:  District Inspector

DI

abbreviation:  Drill Instructor (USMC)

Dia.

blueprints:  Diameter.

Diag. L.

blueprints:  Diagonal Line.

diagonal line

nautical:  A line cutting the body plan diagonally from the frames to the middle line in the loft lay-out and usually a mean normal to a group of frames of similar curvature, representing a plane introduced for line fairing purposes.

DIC

abbreviation:  Detailed Interrogation Center

DIEGO

abbreviation:  San Diego, California

DIES

abbreviation:  Diesel

Dif

abbreviation:  Difference

DIF

abbreviation:  Direction Finder (radio)

DIF

abbreviation:  Duty involving flying

DIFF PAY

abbreviation:  Difference in pay

DIIO

abbreviation:  District Industrial Incentive Office(r)

DIM

abbreviation:  District Industrial Manager

DINA

abbreviation:  Direct noise amplifier (airborne radar transmitter)

DINO

abbreviation:  Deputy Inspector of Naval Ordnance

DIO

abbreviation:  District Intelligence Office(r)

Dip and convergence

orders:  Set dip and convergence in yards.

DIR

abbreviation:  Director

DIRDET

Bureau of Personnel Condensation Code:  When directed by the commanding officer or commander designated, detached from duty indicated and from such other duty as may have been assigned.

DIREC

abbreviation:  Direction

Direct fire

orders:  Firing at a target that can be seen.

Director (one) (two) control

orders:  Places the designated director in control.

Director continuous fire

orders:  The director fires each turret when ready.

Director control

orders:  A method of control in which the guns are trained and elevated either automatically or by matching indicators operated by director and associated instruments and as corrected by them.

DirLantDocks

abbreviation:  Director, Atlantic Division, Bureau of Yards and Docks

DirNavHist

abbreviation:  Director of Naval History

DIRO

abbreviation:  District Industrial Relations Officer; changed to District Labor Relations Office (DLRO) in 1943.

DirPacDocks

abbreviation:  Director, Pacific Division, Bureau of Yards and Docks

DIS GRAT

abbreviation:  Discharge gratuity

DIS

abbreviation:  Discharged

DIS

abbreviation:  Dispatch

DISB

abbreviation:  Disbursing

Disc

abbreviation:  Discontinue(d)

DISCREP

abbreviation:  Discrepancy report

Disemb

abbreviation:  Disembark(ed)

dished plates

nautical:  Plates, generally of circular shape, which have been furnaced or pressed into a concave form.

Disp

abbreviation:  Dispatch

Disp

abbreviation:  Dispensary

Disp

abbreviation:  Disposal

displacement curves

nautical:  Curves drawn to give the displacement of the vessel at varying drafts. Usually these curves are drawn to show the displacement in either salt or fresh water, or in both, the salt water curves being based on 35 cubic feet to a ton and fresh water curves on 36 cubic feet to a ton. Corrections are made from these basic standards for variable density of the water.

displacement, designed

nautical:  The displacement of a vessel when floating at her designed draft.

displacement, full load

nautical:  The displacement of a vessel when floating at her greatest allowable draft as established by the classification societies. In warships, an arbitrary full load condition is established.

displacement, light

nautical:  The displacement of the vessel complete with all items of outfit, equipment, and machinery on board, but excluding all cargo, fuel, water, stores, passengers, dunnage, and the crew and their effects. Naval and merchant practice differs in one particular; in the former the machinery weights are dry, while the merchant light condition includes the water and oil in the machinery with boilers at steaming level.

displacement

nautical:  The volume of fluid displaced by a freely floating and unrestrained vessel, the weight of which exactly equals the weight of the vessel and everything on board at the time the displacement is recorded. Displacement is expressed in either cubic feet or in tons of salt or fresh water.

DIST

abbreviation:  District

DISTRIB

abbreviation:  Distribution; Redistribution

Div.

blueprints:  Division.

DIV

abbreviation:  Deep Sea Diving

DIV

abbreviation:  Diver

DIV

abbreviation:  Division

DivCom

abbreviation:  Division Commander

Divided control

orders:  Places each director in control of its own battery guns.

Divided fire

orders:  The battery is divided into groups firing at two or more targets.

Dk.

blueprints:  Deck.

DL

abbreviation:  Destroyer Leader

DL

abbreviation:  USNR officer designation for Limited General Service, Deck Duties. Formerly (D)L.

DLN

abbreviation:  USNR officer designation. See DL and N. Formerly (D)L-N.

DLNC

abbreviation:  Deputy Local Naval Commander

DLO

abbreviation:  District Legal Office(r)

DLR

abbreviation:  USNR officer designation. See DL and R. Formerly (D)L-R.

DLRO

abbreviation:  District Labor Relations Office(r)

DLT

abbreviation:  Deck Landing Training

DLT

abbreviation:  USNR officer designation. See DL and T. Formerly (D)L-T.

DLTS

abbreviation:  Deck Landing Training School

DLX

abbreviation:  USNR officer designation. See DL and X. Formerly (D)L-X.

DM

abbreviation:  Adamsite

DM

abbreviation:  Light Minelayer

DM

abbreviation:  Master Diver

DM

abbreviation:  USNR officer designation for General Service, Deck, Merchant Marine. Formerly (DM).

DMI

abbreviation:  Directorate of Military Intelligence (British War Office)

Dml O

abbreviation:  Demolition Officer (Army)

DML

abbreviation:  USNR officer designation for Limited General Service, Deck, Merchant Marine. Formerly (DM)L.

DMLN

abbreviation:  USNR officer designation. See DML and N. Formerly (DM)L-N.

DMLR

abbreviation:  USNR officer designation. See DML and R. Formerly (DM)L-R.

DMLT

abbreviation:  USNR officer designation. See DML and T. Formerly (DM)L-T.

DMLX

abbreviation:  USNR officer designation. See DML and X. Formerly (DM)L-X.

DMN

abbreviation:  USNR officer designation. See DM and N. Formerly (DM)-N.

DMO

abbreviation:  Directorate of Military Operations (GB)

DMO

abbreviation:  District Marine Officer

DMO

abbreviation:  District Material Officer

DMO

abbreviation:  District Medical Officer

DMP

abbreviation:  Disarmed military personnel

DMR

abbreviation:  USNR officer designation. See DM and R. Formerly (DM)-R.

DMS

abbreviation:  Mine Sweeper (converted DD)

DMT

abbreviation:  USNR officer designation. See DM and T. Formerly (DM)-T.

DMX

abbreviation:  USNR officer designation. See DM and X. Formerly (DM)-X.

DN

abbreviation:  USNR officer designation. See D and N. Formerly (DN)-N.

DNC

abbreviation:  Director of Naval Communications (changed to CNC, October 1945)

DNI

abbreviation:  Director of Naval Intelligence

DNI

abbreviation:  Directorate of Naval Intelligence (British Admiralty)

DNI

abbreviation:  Division of Naval Intelligence

DNOP

abbreviation:  Director of Naval Officer Procurement

DNP

abbreviation:  Reservists in drill non-pay status

DNTS

abbreviation:  Director Naval Transportation Service; now, CNTS.

DO(No.)

abbreviation:  Radio controlled glider bomb carrier

DO

abbreviation:  Dental Officer

DO

abbreviation:  Disbursing Officer

DO

abbreviation:  Diver, First Class

DO

abbreviation:  Duty Officer

dock

nautical:  A basin for the reception of vessels. Wet docks are utilized for the loading and unloading of ships. Dry docks are utilized for the construction or repair of ships.

DOCKS

abbreviation:  Bureau of Yards and Docks

dockyard

nautical:  A shipyard or plant where ships are constructed or repaired.

DOD

abbreviation:  Died of disease

DofS (W)

abbreviation:  Director of Stores (Washington)

DofS

abbreviation:  Depot of Supplies (USMC)

dog shores

nautical:  Diagonal braces placed to prevent the sliding ways from moving when the shores and keel blocks are removed before launching. Dog shores are the last timbers to be knocked away at a launching. Also called "daggers" or "dagger shores".

Dog

abbreviation:  "D" in the phonetic alphabet

dog

nautical:  A short metal rod or bar fashioned to form a clamp or clip and used for holding watertight doors, manholes, or pieces of work in place.

DOL(S)

abbreviation:  Dollar(s)

DOL

abbreviation:  Detached Officer’s List (Army)

dolly bar

nautical:  A heavy steel bar used to hold against the heads of rivets while the points are being clinched when the space is not sufficient to permit the use of a regular holding-on tool.

dolphin

nautical:  A term applied to several piles that are bound together, situated either at the corner of a pier or out in the stream and used for docking and warping vessels. Also applied to single piles and bollards on piers that are used in docking and warping.

donkey engine

nautical:  A small gas, steam, or electric auxiliary engine set on the deck and used for lifting, etc.

DOO

abbreviation:  District Operations Office(r)

DOO

abbreviation:  District Ordnance Office(r)

Doodle Bug

abbreviation:  Pilotless Flying Bomb (V-1)

door frame

nautical:  The frame surrounding a door opening on which the door seats.

door, airtight

nautical:  A door so constructed that when closed it will prevent the passage of air under a small pressure. Used on air locks to boiler rooms under forced draft and in similar locations.

door, joiner

nautical:  A light door fitted to staterooms and quarters where air and watertightness is not required. Made of wood, light metal, and metal-covered wood. Metal joiner doors with pressed panels are extensively used.

door, watertight

nautical:  A door so constructed that, when closed, it will prevent water under pressure from passing through. A common type consists of a steel plate, around the edges of which a frame of angle bar is fitted, having a strip of rubber attached to the reverse side of the flange that is fastened to the door plate. The strip of rubber is compressed against the toe of the flange of an angle-iron door frame by dogs or clamps.

door, weathertight

nautical:  A term applied to outside doors on the upper decks which are designed to keep out the rain and spray.

DOT

abbreviation:  Dictionary of Occupational Titles

double bottom

nautical:  A term applied to the space between the inner and outer skins of a vessel called respectively the "inner bottom" and "shell", usually extending from bilge to bilge and for nearly the whole length of the vessel fore and aft, and subdivided into water or oil tight compartments. In some cases, and generally in warships, the inner bottom is carried above the bilges to a deck at or near the waterline. Where more than one inner skin is fitted, as is sometimes the case, the two spaces are known as the "lower bottom tank" or "void" and the "upper bottom tank". The outer skin is known as the "shell", the skin next to it as the "lower inner bottom", and the third skin as the "upper inner bottom".

Double up and secure

orders:  Run out one or more bights and secure the lines.

Double Wasp

abbreviation:  Naval Aircraft engine, 18 cylinders, manufactured by Pratt and Whitney

doubling plate

nautical:  An extra plate secured to the original plating for additional strength or to compensate for an opening in the structure.

Douse (sail, light, etc.)

orders:  To take, or lower a sail, to put out a light, to cover with water.

DOV

abbreviation:  Disbursing Officer’s Voucher

dowel

nautical:  A pin of wood or metal inserted in the edge or face of two boards or pieces to secure them together.

DP

abbreviation:  By Direction of the President

DP

abbreviation:  Dental Prosthetic Technician

DP

abbreviation:  Department of the Pacific (USMC)

DP

abbreviation:  Displaced Persons

DP

abbreviation:  Double Purpose Gun

DPC

abbreviation:  Defense Plants Corporation

DPD

abbreviation:  Director, Personnel Department (USMC)

DPD

abbreviation:  District Port Director

DPIO

abbreviation:  District Public Information Office(r)

DPLO

abbreviation:  District Postal Liaison Officer

DPMC

abbreviation:  Director of Personnel Marine Corps

DPO

abbreviation:  District Personnel Office(r)

DPO

abbreviation:  District Postal Office(r)

DPPO

abbreviation:  District Publications and Printing Office

DPRO

abbreviation:  District Public Relations Office(r)

DPT

abbreviation:  Dental Technology Prosthetic

DPTO

abbreviation:  District Property Transportation Office(r)

DPWO

abbreviation:  District Public Works Office(r)

DQM

abbreviation:  Depot Quartermaster (USMC)

DQN

abbreviation:  Depot Quartermaster, Naval Operating Base, Norfolk (USMC)

DQP

abbreviation:  Depot Quartermaster, Philadelphia (USMC)

DQPH

abbreviation:  Depot Quartermaster, Pearl Harbor (USMC)

DQQ

abbreviation:  Depot Quartermaster, Quantico (USMC)

DQR

abbreviation:  Depot Quartermaster, Richmond (USMC)

DQSF

abbreviation:  Depot Quartermaster, San Francisco (USMC)

Dr.

blueprints:  Door.

DR

abbreviation:  Destroyer (GB)

DR

abbreviation:  Diesel Radial (aircraft engine)

Dr

abbreviation:  Drill

DR

abbreviation:  USNR officer designation. See D and R. Formerly (D)-R.

DRA

abbreviation:  Dead Reckoning Analyzer

draft marks

nautical:  The numbers which are placed on each side of a vessel near the bow and stern, and often also amidships, to indicate the distance from the number to the bottom of the keel or a fixed reference point. These numbers are six inches high, are spaced twelve inches bottom to bottom vertically, and are located as close to the bow and stern as possible.

draft, draught

nautical:  The depth of the vessel below the waterline measured vertically to the lowest part of the hull, propellers, or other reference point. When measured to the lowest projecting portion of the vessel, it is called the "draft, extreme"; when measured at the bow, it is called "draft, forward"; and when measured at the stern, the "draft, aft"; the average of the draft, forward, and the draft, aft is the "draft, mean", and the mean draft when in full load condition is the "draft load".

drag

nautical:  The designed excess of draft, aft, over that forward, measured from the designer’s waterline. The drag is constant and should not be confused with trim.

DrewUnit

abbreviation:  Shipping designator for assemblies scheduled to go to Europe for the Normandy invasion

drift pin

nautical:  A conical-shaped pin gradually tapered from a blunt point to a diameter a little larger than the rivet holes in which it is to be used. The point is inserted in rivet holes that are not fair, and the other end is hammered until the holes are forced into line.

drift

nautical:  When erecting the structure of a ship and rivet holes in the pieces to be connected are not concentric, the distance that they are out of line is called the drift. This should be corrected by reaming the holes, but common practice, which is prohibited in naval work, is to drive tapered pins, called "drift pins", into the unfair holes to force them into line.

DRM

abbreviation:  Dental Repair Technician

DRMAJ

abbreviation:  Drum Major (USMC)

DRMO

abbreviation:  District Records Management Officer

Drone

abbreviation:  Pilotless F6F "Hellcat"

Drop down (see sprawl)

orders:  All hands on deck drop down on their faces to avoid bomb fragments. The command ordinarily will be given only after aircraft have been observed to reach a bombing position, to have released their bombs, and just before the bombs reach the contact point.

Drop down, preferably sprawl

orders:  All hands on deck drop down on their faces to avoid bomb fragments. The command ordinarily will only be given after aircraft have been observed to reach a bombing position, to have released their bombs, and just before the bombs reach the surface.

DRP

abbreviation:  Dead Reckoning Plotter

DRT

abbreviation:  Dead Reckoning Tracer

DRU

abbreviation:  Demolition Research Unit

dry dock, floating

nautical:  A hollowing floating structure of L- or U-shaped cross section, so designed that it may be submerged to permit floating a vessel into it, and that it may then raise the vessel and itself so that the deck of the dock and consequently the bottom of the vessel is above the level of the water. The bottom of a floating dry dock consists of one or more pontoons or rectangular-shaped vessels with high wing structure erected on one or both sides according to whether the section is to be L- or U-shaped. The deck of the pontoon is fitted with stationary keel blocks and movable bilge blocks which can be pulled under a vessel from the top of the wing structure. Pumps are fitted in the wings by which the dock can be quickly submerged or raised. Floating dry docks are used for repairing and painting the under-water portions of vessels and for docking a damaged vessel.

dry dock, graving

nautical:  A basin excavated at a waterway and connected thereto by gates or a caisson which may be opened to let a vessel in or out and then closed and the water pumped out. The dock is fitted with stationary keel blocks and movable bilge blocks, which usually are fitted on rack tracks, allowing them to be pulled under a vessel before the water is pumped out. Graving docks are common in navy yards, and although more expensive to construct than floating dry docks, they are practically permanent and supply a more rigid foundation for supporting a ship. The gate of a graving dry dock is usually a caisson which is a complete vessel in itself, having a strong rectangular-shaped keel and end posts which bear against the bottom sill and side ledges at the entrance of the dry dock. The caisson is designed so that its draft may be adjusted by water ballast until it bears against the sill and ledges and is equipped with flood valves and power pumps to make this adjustment. When a ship is to be docked, sluice valves in the caisson or in the deck structure are opened until the water in the dock reaches the same level as the water outside. The caisson is then floated to one side, allowing a vessel to enter the dock. The caisson is then floated back to close the entrance, completely separating the basin from the waterway, and after the vessel is lined up over the keel blocks the water is pumped out of the dry dock.

dry dock, railway

nautical:  A railway dock consists of tracks built on an incline on a strong foundation and extending from a distance in-shore sufficient to allow docking a vessel of the maximum size for which the dock is built, to a distance underwater sufficient to allow the same vessel to enter the cradle. The cradle running on the tracks may be of wood or steel fitted with keel and bilge blocks and sufficiently weighted to keep it on the track when in the water. A hoisting engine with a winding drum or wild cat is fitted at the in-shore end of the railway which operates the cradle by a cable or chain. This type of dry dock is used for docking small ships. It is commonly called a "marine railway".

Dry down the decks; squilgee (squeegee) down the decks

orders:  To dry the decks, usually with a rubber scraper designed for this purpose, but they may be dried with a swab.

DS

abbreviation:  Diver, Salvage

DSA

abbreviation:  Division Service Area (Army)

DSC

abbreviation:  Defense Supply Corporation

DSC

abbreviation:  Defense Supply Corporation

DSC

abbreviation:  Distinguished Service Cross

DSC

abbreviation:  Distinguished Service Cross

DSM

abbreviation:  Direction de Service de Securité Militaire (France)

DSM

abbreviation:  Distinguished Service Medal

DSM

abbreviation:  Distinguished Service Medal

DSO

abbreviation:  District Security Office(r)

DSO

abbreviation:  District Security Office(r)

DSO

abbreviation:  District Service Office(r)

DSO

abbreviation:  District Service Office(r)

DSO

abbreviation:  District Supply Office(r)

DSO

abbreviation:  District Supply Office(r)

DSR

abbreviation:  Duty Steam or Power Boat

DSSO

abbreviation:  District Ships Service Office(r)

DST

abbreviation:  Dermatology and Syphilology Technician

DT

abbreviation:  Diver, Second Class

DT

abbreviation:  USNR officer designation. See D and T. Formerly (D)-T.

DTB

abbreviation:  Destroyer Tactical Bulletin

DTG

abbreviation:  Date time group

Dtl

abbreviation:  Detail(ed)

DtlAvr

abbreviation:  Detailed as Aviator (USMC)

DTO

abbreviation:  District Training Office(r)

DTO

abbreviation:  District Transportation Office(r)

DU

Bureau of Personnel Condensation Code:  Duty

Duck

abbreviation:  See J2F-3-5, JF -6

DUCON

Bureau of Personnel Condensation Code:  Duty connection

ductility

nautical:  That property of a material which permits its being drawn out into a thread of wire.

DUFLY

Bureau of Personnel Condensation Code:  For duty involving flying

DUFLYTECH

Bureau of Personnel Condensation Code:  Duty involving flying as a technical observer

DUFLYTECHNAV

Bureau of Personnel Condensation Code:  Duty involving flying as a technical observer non-pilot navigator

DUKW

abbreviation:  Amphibious truck

DUMBO

abbreviation:  Rescue Plane (usually PB type)

dunnage

nautical:  Any material, such as blocks, boards, paper, burlap, etc., necessary for the safe stowage of stores and cargo; also used in reference to staging, etc., used by workmen during building or repair operations.

DUPE

abbreviation:  Duplicate

duplicating pipe

nautical:  A piece of tubing, generally brass, used with paint to transfer rivet hole layout from template to plate. The end of the pipe is dipped in paint, and while still wet is pushed through each template hole, leaving an impression on the plate. Also called a "marker".

Dur

abbreviation:  During

DUT

abbreviation:  Duplication Technician, Photolithography

DUT

abbreviation:  Physically on board for duty in ship’s company

dutchman

nautical:  A piece of wood or steel fitted into an opening to cover up poor joints or crevices caused by poor workmanship.

DUTOUT

Bureau of Personnel Condensation Code:  For duty outside the continental limits of the United States

DWA

abbreviation:  Died of wounds resulting from action with enemy.

DWBO

abbreviation:  District War Bond Office(r)

DWPO

abbreviation:  District War Plans Officer

DWT

abbreviation:  Deadweight Tons

DX

abbreviation:  USNR officer designation. See D and X. Formerly (D)-X.

E-M

abbreviation:  USNR designation for Engineer Officers, Merchant Marine, commissioned and warrant, including electricians, radio electricians, carpenters and machinists, qualified for engineering or other appropriate duties. This classification was abolished in September 1944 and replaced by (EM), (EM)L or S(EM).

E-V(G)

abbreviation:  USNR designation for Engineer Officers, commissioned and warrant, including electricians, carpenters, and machinists, qualified for general detail afloat or ashore. This classification was abolished in September 1944 and replaced by one of the following: (E) or (E)L, if general service; (S), S(E), or S(E) with proper numeral indicating specialty within engineering, if special service.

E-V(RS)

abbreviation:  USNR designation for Engineer Officers, commissioned and warrant, including radio electricians, qualified for specialist duties. This classification was abolished in September 1944 and replaced by the proper aviation or engineering classification with the suffix "T".

E-V(S)

abbreviation:  USNR designation for Engineer Officers, commissioned and warrant, including electricians, radio electricians and machinists, qualified for specialist duties. This classification was abolished in September 1944 and replaced by one of the following: (E), (E)L, (S), S (E), or S (E) with proper numeral indicating particular specialty within engineering.

E.B.Co.

abbreviation:  Electric Boat Company

E.M.

abbreviation:  Electro-Motive Corporation

E/A

abbreviation:  Enemy Aircraft

E&R

abbreviation:  Engineering and Repair (Department)

E

abbreviation:  Bellanca Aircraft Corporation (manufacturer’s symbol)

E

abbreviation:  Edo Aircraft Corporation (manufacturer’s symbol)

E

abbreviation:  Electrical Equipment Division of the Engineering Department aboard a carrier

E

abbreviation:  Electronic night bombing installation (suffix to plane designation)

E

abbreviation:  Gould Aeronautical Division (Pratt, Read & Co.)

E

abbreviation:  Office of Engineering (Engineer-in-Chief) (USCG)

E

abbreviation:  Piper Aircraft Corporation (manufacturer’s symbol)

E

abbreviation:  USNR officer designation for General Service, Engineering Duties. Formerly (E).

EA

abbreviation:  East Africa

EA

abbreviation:  Engineer Rear Admiral (GB)

EAC

abbreviation:  Eastern Air Command (CBI Theater)

EAC

abbreviation:  European Advisory Commission

EAD

abbreviation:  Extended Active Duty

EAE

abbreviation:  Aeronautical Engineering Division (USCG)

EARLPRADATE

Bureau of Personnel Condensation Code:  Earliest Practical Date

Ease it; Ease away; Ease off

orders:  Pay out enough to remove most of the strain.

Ease the rudder

orders:  Decrease the present rudder angle; given when the ship is turning too rapidly or is coming to the heading required, for example, "Ease to 10".

EASTCO

abbreviation:  East Coast

EastCon

abbreviation:  Eastern Sea Frontier Control Local of Shipping in Gulf of Maine

EASTOMP

abbreviation:  East-Ocean Meeting point

EastSeaFron

abbreviation:  Eastern Sea Frontier

Easy

abbreviation:  "E" in the phonetic alphabet

EC

abbreviation:  Electric Coding (Cipher) Machine Repairman

EC

abbreviation:  Engineering Construction

ECAD

abbreviation:  European Civil Affairs Division

ECAR

abbreviation:  European Civil Affairs Regiment

eccentric

nautical:  A form of crank in which a circular disk set eccentrically upon a shaft forms both the crank web and the crank pin and converts circular to rectilinear motion. This rectilinear travel is usually short relative to the diameter of the shaft so that an ordinary form of crank is impractical.

Ech

abbreviation:  Echelon

Echo

abbreviation:  Reflected Signal (radar)

ECM

abbreviation:  Electric Coding or Cipher Machine

ECV

abbreviation:  Civil Engineering Division (USCG)

ED

abbreviation:  Eastern District

ED

abbreviation:  Electric Dynamic (Motors)

ED

abbreviation:  Engineering Draftsman

ED

abbreviation:  Extra Duty

ED

abbreviation:  Fingerprint Expert

EDC

abbreviation:  Eastern Defense Command (Army)

EDDC

abbreviation:  East Coast (Naval Publications) Distribution Center

edge, sight

nautical:  That edge of a strake of plating which laps outside another strake and is, therefore, in plain sight.

edge

nautical:  An abrupt border or margin, a bounding or dividing line, the part along the boundary.

EDO

abbreviation:  USN officer designation for Engineering Duty Only

EE&RM

abbreviation:  Elementary Electrical and Radio Material (Training School)

EEE

abbreviation:  Electronics Engineering Division (USCG)

EEN&T

abbreviation:  Eye, Ear, Nose and Throat

EF & LTC

abbreviation:  Enemy Fuels and Lubricants Technical Committee

Eff

abbreviation:  Effect(ed), Effective

EFM

abbreviation:  Expeditionary Force Message

EFTS

abbreviation:  Elementary Flying Training School

EG

abbreviation:  Escort Group

EG

abbreviation:  Expert Gunner (Army)

EIL

abbreviation:  Explosives Investigation laboratory

EL/G or ELG

abbreviation:  Emergency Landing Ground

EL

abbreviation:  USNR officer designation for Limited General Service, Engineering Duty. Formerly (E)L.

elastic limit

nautical:  The limit of stress intensity within which a material will return to its original size and shape when the load is removed and hence not take a permanent set.

elbow-ell

nautical:  A pipe fitting that makes an angle between adjacent pipes, always 90 degrees unless another angle is stated.

ELEC

abbreviation:  Electrician

Elect

abbreviation:  Electric(ian); Electric(al)

electrode

nautical:  Either a positive or negative pole or terminal in an electric circuit. See "polarity".

Elev.

blueprints:  Elevation.

ELN

abbreviation:  USNR officer designation. See EL and N. Formerly (E)L-N.

ELR

abbreviation:  USNR officer designation See EL and R. Formerly (E)L-R.

ELSB

abbreviation:  Edge Lighted Status Board

ELT

abbreviation:  Electrocardiography and Basal Metabolism Technician

ELT

abbreviation:  USNR officer designation. See EL and T. Formerly (E)L-T.

ELTC

abbreviation:  Enlisted loss to commissioned status

ELTW

abbreviation:  Enlisted loss to warrant status

ELX

abbreviation:  USNR officer designation. See EL and X. Formerly (E)L-X.

EM

abbreviation:  Educational Manual

EM

abbreviation:  Electrician’s Mate

EM

abbreviation:  Engine Maintenance

EM

abbreviation:  Enlisted man (men)

EM

abbreviation:  USNR officer designation for General Service, Engineering Merchant Marine. Formerly (EM).

Emb

abbreviation:  Embark(ed) (ation)

EMCB

abbreviation:  Electrician’s Mate, Construction Battalion

EMCBC

abbreviation:  Electricians Mate, Construction Battalion, Communications

EMCBD

abbreviation:  Electricians Mate, Construction Battalion, Draftsman

EMCBG

abbreviation:  Electricians Mate, Construction Battalion, General

EMCBL

abbreviation:  Electricians Mate, Construction Battalion, Line and Station

Emerg.

blueprints:  Emergency.

EMERG

abbreviation:  Emergency

Emergency speed

orders:  Make all speed possible with the power available.

EML

abbreviation:  USNR officer designation for Limited General Service, Engineering, Merchant Marine. Formerly (EM)L.

EMLN

abbreviation:  USNR officer designation. See EML and N. Formerly (EM)L-N.

EMLR

abbreviation:  USNR officer designation. See EML and R. Formerly (EM)L-R.

EMLT

abbreviation:  USNR officer designation. See EML and T.

EMLX

abbreviation:  USNR officer designation. See EML and X.

EMN

abbreviation:  USNR officer designation. See EM and N. Formerly (EM)-N.

EMR

abbreviation:  USNR officer designation. See EM and R. Formerly (EM)-R.

EMSR

abbreviation:  Electrician’s Mate, Ship Repair

EMSRG

abbreviation:  Electrician’s Mate, Ship Repair, General Electrician

EMSRS

abbreviation:  Electrician’s Mate, Ship Repair, Shop Electrician

EMSRT

abbreviation:  Electrician’s Mate, Ship Repair, I.C. Repairman

EMT

abbreviation:  Electrician’s Mate, Telephone (USCG)

EMT

abbreviation:  Embalmer

EMT

abbreviation:  USNR officer designation. See EM and T. Formerly (EM)-T.

EMX

abbreviation:  USNR officer designation. See EM and X. Formerly (EM)-X.

EN

abbreviation:  USNR officer designation. See E and N. Formerly (E)-N.

ENC

abbreviation:  Electroencephalography Technician

ENC

abbreviation:  Enlistment Cancelled

ENDEK

abbreviation:  National Democratic Party (Poland)

ENE

abbreviation:  Naval Engineering Division (USCG)

Eng. Rm. Bhd.

blueprints:  Engine Room Bulkhead

Eng.

blueprints:  Engine.

ENG

abbreviation:  Engineering

Engine operating station

engineering:  A location or compartment from which a main propelling unit or units are operated.

Engine room

engineering:  A compartment in which the main propelling unit or units are installed.

engine room

nautical:  Space where the main engines of a ship are located.

Engr

abbreviation:  Engineer

Enl

abbreviation:  Enlist(ed) (ment)

Ens

abbreviation:  Ensign

ensign

glossary:  The national flag; usually flown from the stern when in port or the flagstaff while at sea.

Ensign

glossary:  The lowest commissioned navy rank; designated O-1. Abbreviated ENS.

entrance

nautical:  The forward underwater portion of a vessel at or near the bow. The angle formed between the center line of the ship and the tangent to the designed waterline is called the angle of entrance.

EOC

abbreviation:  Enemy Oil Committee (US)

EOD

abbreviation:  Date of Entering Officer

EOSO

abbreviation:  Escort Oilers Supervising Officer

EOU

abbreviation:  Enemy Objective Unit (US) (London)

EP

abbreviation:  Engineer Personnel (USMC)

EPC

abbreviation:  End Products Committee (WPB)

EPCO

abbreviation:  Engine Parts Coordinating Office (BuShips)

EPD

abbreviation:  Eastern Procurement Division

EPD

abbreviation:  Eastern Production District

EPF

abbreviation:  Emergency Plant Facilities

EPLA

abbreviation:  Electronics Precedence List Agency

EPR

abbreviation:  Engineer Photographic and Reproduction (USMC)

EQPT

abbreviation:  Equipment

equilibrium, neutral

nautical:  The state of equilibrium in which a vessel inclined from its original position of rest by an external force tends to maintain the inclined position assumed after that force has ceased to act.

equilibrium, stable

nautical:  The state of equilibrium in which a vessel inclined from its original position of rest by an external force tends to return to its original position after that force has ceased to act.

equilibrium, unstable

nautical:  The state of equilibrium in which a vessel inclined from its original position of rest by an external force tends to depart farther from the inclined position assumed after that force has ceased to act.

Equip

abbreviation:  Equipment

ER

abbreviation:  Expert Rifleman (USMC)

ER

abbreviation:  USNR officer designation. See E and R. Formerly (E)-R.

ERC

abbreviation:  Enlisted Reserve Corps (Army)

erection

nautical:  The process of hoisting into place and joining the various parts of a ship’s hull, machinery, etc.

ERO

abbreviation:  Emergency Repair Overseer

ERSA

abbreviation:  Electronic Research Supply Agency

EsCarFor

abbreviation:  Escort Carrier Force

ESCORON

abbreviation:  Escort Scouting Squadron

EscortDiv

abbreviation:  Escort Division

EscortFightRon

abbreviation:  Escort Fighter Squadron

ESF

abbreviation:  Eastern Sea Frontier

ESHU

abbreviation:  Emergency Ship Handling Unit

ESO

abbreviation:  Educational Services Office(r)

ESS

abbreviation:  Educational Services Section

EST

abbreviation:  Epidemiology and Sanitation Technician

ESTAB

abbreviation:  Establish(ment)

ESTAR

abbreviation:  Estimated Arrival Date

ET

abbreviation:  USNR officer designation. See E and T. Formerly (E)-T.

ETA

abbreviation:  Estimated Time of Arrival

ETD

abbreviation:  Estimated Time of Departure

ETD

abbreviation:  Testing and Development Division (USCG)

ETE

abbreviation:  Estimated Time Enroute

ETF

abbreviation:  Eastern Task Force

ETF

abbreviation:  Estimated Time of Flight

ETI

abbreviation:  Estimated Time of Interception

ETM

abbreviation:  Electronic Technician’s Mate

ETMSR

abbreviation:  Electronic Technician’s Mate, Ship Repair

ETO

abbreviation:  European Theater of Operations

ETOUSA

abbreviation:  European Theater of Operations, United States Army

ETRA

abbreviation:  Estimated Time to Reach Altitude

ETS

abbreviation:  Expiration Term of Service (Army)

EU

abbreviation:  Europe

EV

abbreviation:  Escort Vessels (enemy)

EVA

abbreviation:  Escort Vessel Administration

Evac

abbreviation:  Evacuation

Evap

abbreviation:  Evaporator

evaporator

nautical:  An auxiliary for supplying fresh water, consisting of a salt water chamber heated by coils or nests of tubing through which live steam is circulated, converting the water into steam which is passed to a condenser or distiller to make up loss of boiler feed water or for other purposes requiring fresh water.

even keel

nautical:  When a boat rides on an even keel, its plane of flotation is either coincident with or parallel to the designed waterline.

EWAS

abbreviation:  Economic Warfare Analysis Section

EWD

abbreviation:  Economic Warfare Division (US) (London)

EWT

abbreviation:  Eastern War Time

EX

abbreviation:  Excess

EX

abbreviation:  Experiment(al)

EX

abbreviation:  Expert

EX

abbreviation:  USNR officer designation. See E and X. Formerly (E)-X.

EXAM

abbreviation:  Examining board

Exc

abbreviation:  Excellent

Excalibur

abbreviation:  See JRS-#

EXCL

abbreviation:  Exclusive

ExDiv

abbreviation:  Experimental Division

EXOS

abbreviation:  Executive Office

Exp Enl

abbreviation:  Expiration of Enlistment (USMC)

Exp. T.

blueprints:  Expansion Tank.

Exp

abbreviation:  Experience

Exp

abbreviation:  Express (boiler)

EXP

abbreviation:  Express

expansion joint

nautical:  A term applied to a joint which permits linear movement to take up the expansion and contraction due to changing temperature or ship movement.

expansion tanks

nautical:  Overflow tanks used to provide for expansion, overflow, and replenishment of oil in stowage or cargo tanks.

expansion trunk

nautical:  A trunk extending above a hold which is intended for stowage of liquid cargo. The surface of the cargo liquid is kept sufficiently high in the trunk to permit of expansion of the liquid without danger of excessive strain on the hull or of overflowing, and of contraction of the liquid without increase of the free surface and its accompanying effect upon the stability of the vessel.

ExpDivUnit

abbreviation:  Experimental Diving Unit

EXPED

abbreviation:  Expedition(ary)

Expeditor

abbreviation:  See JRB-1- 4

ExSta

abbreviation:  Experimental Station

Ext Enl

abbreviation:  Extension of Enlistment

extra strong

nautical:  The correct term or name applied to a certain class of pipe which is heavier than standard pipe and not as heavy as double extra strong pipe. Often, but less correctly, called extra heavy pipe.

eye bolt

nautical:  A bolt having either a head looped to form a worked eye or a solid head with a hole drilled through it forming a shackle eye.

eye

nautical:  A hole through the head of a needle, pin, bolt, etc. or a loop forming a hole or opening through which something is intended to pass, such as a hook, pin, shaft, or rope. A "worked eye" is one having its edges rounded off like a ring, while a "shackle eye" is drilled straight through, permitting an inserted bolt or pin to bear along its entire length.

eyes

nautical:  The forward end of the space below the upper deck of a ship which lies next abaft the stem where the sides of the ship approach very near to each other. The hawse pipes are usually run down through the eyes of a ship.

F. B.

blueprints:  Flat Bar.

F. Cant.

blueprints:  Forward Cant Frames.

F. K.

blueprints:  Flat Keel.

F. P.

blueprints:  Fore Peak.

F. P.

blueprints:  Forward Perpendicular.

F.M.

abbreviation:  Fairbanks, Morse & Company

F.S.Powder

abbreviation:  Flashless, Smokeless Powder (for ammunition)

F/B

abbreviation:  Flying Boat

F&T

abbreviation:  Fuel and Transportation

F

abbreviation:  Columbia Aircraft Corporation (manufacturer’s symbol)

F

abbreviation:  Fairchild Aircraft, Ltd. (Canada) (manufacturer’s symbol)

F

abbreviation:  Fighter Field

F

abbreviation:  Fireman

F

abbreviation:  First letter in the Navy aircraft designation, indicating a fighter plane

F

abbreviation:  Fitted as Flagship (suffix to plane designation); as: PB2Y-5F

F

abbreviation:  Fixed (a continuous steady light)

F

abbreviation:  Fleet Reserve

F

abbreviation:  Freight Boats (Army)

F

abbreviation:  French

F

abbreviation:  Frequency

F

abbreviation:  Gruman Aircraft Engineering Corporation (manufacturer’s symbol)

F

abbreviation:  Office of Finance and Supply; Chief, Office of Finance and Supply (USCG)

F

abbreviation:  Officer designation for Fighter Director (used as suffix)

F1

abbreviation:  Commander-in-Chief, Plans Division (USN)

F2

abbreviation:  Commander-in-Chief, Combat Intelligence Division (USN)

F2

abbreviation:  Fleet Reserve, 4 or more years

F2A-#

abbreviation:  "Buffalo"; single-engine Navy fighter (VF), manufactured by Brewster

F2F-#

abbreviation:  Single-engine Navy fighter (VF), biplane, manufactured by Grumman

F3

abbreviation:  Commander-in-Chief, Operations Division (USN)

F3

abbreviation:  Fleet Reserve, 16-20 years

F37

abbreviation:  Commander-in-Chief, U.S. Fleet

F3A-#

abbreviation:  "Corsair"; single-engine Navy fighter (VF), manufactured by Brewster

F3D

abbreviation:  Fleet Reserve, 20 or more years

F3F-#

abbreviation:  Single-engine Navy fighter (VF), biplane, manufactured by Grumman

F4

abbreviation:  Commander-in-Chief, Readiness Division (USN)

F4C

abbreviation:  Fleet Reserve, 16-20 years

F4D

abbreviation:  Fleet Reserve, 20 or more years

F4F-#

abbreviation:  "Wildcat"; single-engine Navy fighter (VF), manufactured by Grumman

F4U

abbreviation:  "Corsair"; single-engine Navy fighter (VF), manufactured by Chance Vought

F5

abbreviation:  Fleet Reserve, 20 or more years

F6F-#

abbreviation:  "Hellcat"; single-engine Navy fighter (VF), manufactured by Grumman

F6F-#K

abbreviation:  Navy target training drone (VTD), manufactured by Grumman (converted from F6F)

F7F-#

abbreviation:  "Tigercat"; twin-engine Navy fighter (VF(M)), manufactured by Grumman

F8F-#

abbreviation:  "Bearcat"; single-engine Navy fighter, (VF), manufactured by Grumman

FA

abbreviation:  Accounting Division (USCG)

FA

abbreviation:  Family Allowance

FA

abbreviation:  Field Artillery (Army)

FAA

abbreviation:  Family Allowance Class A

FAA

abbreviation:  Fleet Air Arm (GB)

FAAB

abbreviation:  Family Allowance, Class A and B

FAB

abbreviation:  Family Allowance, Class B

FAB

abbreviation:  Fleet Air Base

FAB

abbreviation:  For’ca Aerea Brasileira

fabricate

nautical:  To shape, assemble, and secure in place the component parts in order to form a complete whole. To manufacture.

FABU

abbreviation:  Fleet Air Base Unit

FAC

abbreviation:  Factory

FAC

abbreviation:  Frequency Allocation Committee (CCB)

face plate

nautical:  A flat plate fitted perpendicular to the web and welded to the web plate, or welded or riveted to the flange or flanges of a frame, beam stiffener, or girder to balance the continuous plating attached to the opposite flange of the member.

factor of safety

nautical:  The ratio between either the ultimate strength of the elastic limit of the material and the allowed working stress. The former is usually referred to as the "nominal factor of safety" and the latter as the "real factor of safety". Elastic materials may have both nominal and real factors of safety, while for those materials having approximately the same values for ultimate strength and elastic limit, the distinction between real and nominal factors of safety is nonexistent.

FAD

abbreviation:  Fleet Air Detachment

Fade

abbreviation:  Disappearance of echo from radar screen

FADM

abbreviation:  Fleet Admiral

FAETUA

abbreviation:  Fleet Airborne Electronics Unit, Atlantic

FAGAIRTRANS

Bureau of Personnel Condensation Code:  (via) First Available Government Air Transportation

FAGT

abbreviation:  First Available Government Transportation

FAGTrans

abbreviation:  First Available Government Transportation

fair curves

nautical:  Curves which do not in any portions of their entire lengths show such changes of direction as to mark those portions as out of harmony in any respect with the curves as a whole or with the other portions of the curves.

fair or fair up

nautical:  To so draw the lines of a vessel that the defined surfaces will show no irregularities throughout their entire extent. To line up the frames of a vessel under construction to their proper position. Rivet holes are said to be fair when corresponding holes in the members joined are concentric.

FAIR

abbreviation:  Fleet Air

FAIR

abbreviation:  Fleet Sir Wing

fairleader

nautical:  A fitting or device used to preserve or to change the direction of a rope, chain, or wire so that it will be delivered fairly or on a straight lead to a sheave or drum without the introduction of extensive friction. Fairleaders, or fairleads, are fixtures as distinguished from temporary block rigs.

Fairships

abbreviation:  Fleet Airships

FairshipWing

abbreviation:  Fleet Airship Wing

FAIRTRANS

Bureau of Personnel Condensation Code:  First Available Air Transportation

fairwater

nautical:  A term applied to plating fitted to form a shape similar to a frustrum of a cone around the ends of shaft tubes and strut barrels to prevent an abrupt change in the streamlines. Also applied to any casting or plating fitted to the hull of a vessel for the purpose of preserving a smooth flow of water.

FAIRWestPac

abbreviation:  Fleet Air Wing, Western Pacific Area

fake

nautical:  To lay a rope or chain down in long bights side by side or in coils in regular order so that it will run out clear or can be easily and rapidly paid out. Also one complete circle of a coil of rope.

Falcon

abbreviation:  See NSC-#

fall

nautical:  By common usage, the entire length of rope used in a tackle, although a strict adherence to the term would limit its application to that end to which the power is applied. The end secured to the block is called the standing part, the opposite end, the hauling part.

FAMU

abbreviation:  Fleet Aircraft Maintenance Unit

FANDT

abbreviation:  Fuel and Transportation

fantail

nautical:  The overhanging stern section of vessels which have round or elliptical after endings to uppermost decks and which extend well abaft the after perpendicular.

FAO

abbreviation:  Fleet Administration Office

FAPG

abbreviation:  Fleet Air Photographic Group

FAPRon

abbreviation:  Fleet Air Photo Squadron

FAS

abbreviation:  Free Alongside

FASA

abbreviation:  Fleet Airships, Atlantic

fascia

nautical:  A strip of wood used on covering openings in joiner work.

FASP

abbreviation:  Fleet Airships, Pacific

FASRon

abbreviation:  Fleet Air Service Squadron

fast

nautical:  A rope or chain used to moor a vessel to a wharf, designated in accordance with the end of the boat with which it is used as bow-fast or stern-fast. See "Painter".

FASTULant

abbreviation:  Fleet Ammunition Ship Training Unit, Atlantic

FASTUPac

abbreviation:  Fleet Ammunition Ship Training Unit, Pacific

fathom

glossary:  A measure of water depth. 1 fathom = 6 feet = 1.82 meters

fathom

nautical:  A nautical unit of length used in measuring cordage, chains, depths, etc. The length varies in different countries, being six feet in the United States and in Great Britain.

FATU

abbreviation:  Fleet Air Tactical Unity

FAW

abbreviation:  Fleet Air Wing

FB

abbreviation:  Farrel-Birmingham (ship engines)

FB

abbreviation:  Fighter Bomber Aircraft

FBI

abbreviation:  Federal Bureau of Investigation

FBP

abbreviation:  Fleet Boat Pool

FC

abbreviation:  Fire Control

FC

abbreviation:  Fire Controlman

FCA

abbreviation:  Farm Credit Administration

FCA

abbreviation:  Fire Control Area (Army)

FCA

abbreviation:  Flight Control Assemblies

FCB

abbreviation:  Facility Clearance Board (WPB)

FCC

abbreviation:  Federal Communication Commission

FCE

abbreviation:  Fleet Civil Engineer

FCNL

abbreviation:  French Committee of National Liberation

FCO

abbreviation:  Fire Controlman, Operation

FCO

abbreviation:  Flag Communications Officer

FCO

abbreviation:  Flying Control Officer

FCP

abbreviation:  Fire Control Personnel (USMC)

FCR

abbreviation:  Fire Controlman, Range-finder Operator

FCS

abbreviation:  Fire Controlman, Submarine

FCST

abbreviation:  Forecast

FCT

abbreviation:  Fire Control Technician

FD Net

abbreviation:  Fighter Direction Net

FD-#

abbreviation:  Twin-engine Navy Fighter (VF), manufactured by McDonnell

FD

abbreviation:  Fighter direction

FD

abbreviation:  Finance Department (Army)

FDA

abbreviation:  Food Distribution Administration

FDC

abbreviation:  Fire Direction Center (Army)

FDCS

abbreviation:  Fighter Director Control Schools

FDD

abbreviation:  Floating Drydock

FDO

abbreviation:  Fighter Director Officer

FDS

abbreviation:  Fighter Director Ship

FDT

abbreviation:  Fighter Director Tender

FE

abbreviation:  Far East

FEA

abbreviation:  Foreign Economic Administration

FEAF

abbreviation:  Far Eastern Air Forces

FEATUP

abbreviation:  Fleet Airborne Electronics Unit, Pacific

FEC

abbreviation:  (Office of) Foreign Economic Coordination

FECB

abbreviation:  Far East Combined Bureau (Singapore, 1940)

FED

abbreviation:  Federal

felloes

nautical:  Pieces of wood which form the rim of a wheel.

fender

nautical:  The term applied to various devices fastened to or hung over the sides of a vessel to prevent rubbing or chafing against other vessels or piers. On small craft, as tug boats, fenders of timber faced with hardwood or flat steel plate, or of steel structure run fore and aft on the outside of the vessel above the waterline and are firmly secured to the hull. Wood spars, bundles of rope, woven cane, or rope-covered cork are hung over the sides by lines when permanent fenders are not fitted.

FEO

abbreviation:  Flag Engineering Officer (GB)

FEPC

abbreviation:  Farm Employment Practices Committee

FER

abbreviation:  Ferry

FERON

Bureau of Personnel Condensation Code:  If transferred, forward this directive immediately to his commanding officer for compliance or further transmittal as appropriate, notifying originator in each case the activity to which transferred and your action in forwarding

FF

abbreviation:  Force Flagship

FFA

abbreviation:  For Further Assignment

FFDO

abbreviation:  Force Fighter Director Officer

FFI

abbreviation:  Fixed and Flashing

FFI

abbreviation:  Forces Françaises de l’Interieur

FFP

abbreviation:  Fleet Frequency Plans

FFT

abbreviation:  For Further Transfer

FG-#

abbreviation:  "Corsair"; single-engine Navy fighter (VF), manufactured by Goodyear

FGO

abbreviation:  Flag Gunnery Officer

FGpFl

abbreviation:  Fixed and Group Flashing

FH

abbreviation:  Flag Hoist

FHA

abbreviation:  Federal Housing Administration

FIARWing

abbreviation:  Fleet Air Wing

FIAT

abbreviation:  Field Information Agency, Technical (under G-2, SHAEF)

fid

nautical:  A wood or metal bar used to support the weight of a topmast or a top-gallant mast when in position, being passed through a hole or mortise at its heel and resting on the trestle trees or other support. Also a hardwood tapering pin or tool, used by sailmakers and riggers to open the strands of a rope, eye, grommet, etc., A "hand fid" is rounded at the ends, a "standing or cringle fid" is larger than a hand fid and has a flat base.

fidley deck

nautical:  A partially raised deck over the engine and boiler rooms, usually around the smokestack.

fidley hatch

nautical:  Hatch around smokestack and uptake.

fidley

nautical:  Framework built around a weather-deck hatch through which the smoke pipe passes.

FIDO

abbreviation:  Fog, Intensive Dispersal of

fife rail; pin rail

nautical:  A term applied to a rail worked around a mast and fitted with holes to take belaying pins for securing the running gears.

FIGHT

abbreviation:  Fighting

FightRon

abbreviation:  Fighting Squadron

fillet

nautical:  A term applied to the metal filling in the bosom or concave corners where abrupt changes in direction occur in the surface of a casting, forging, or weldment.

Fin O

abbreviation:  Finance Officer (Army)

FIN

abbreviation:  Finance

fin

nautical:  A projecting keel. A thin plane of metal projecting from hull, etc.

FinSupScol

abbreviation:  Finance and Supply School (USCG)

FIO

abbreviation:  Fleet Intelligence Officer

Fire (location)

orders:  Indicates fire — take action in accordance with ship’s instructions.

Fire 1, Fire 2, etc.

orders:  Used in torpedo control. Fire torpedoes from No. 1 tube, No. 2 tube, etc.

Fire continuous

orders:  Directs the type of fire in which each gun is fired individually and when ready, without regard for the condition of readiness of other guns.

fire control

nautical:  Pertaining to the direction, the control, and the firing of the vessel’s batteries.

Fire

orders:  A statement made by the gun or director as he closes the firing key. It is a warning that the circuit has been closed. Care must be taken to avoid using "Fire" except when it is desired to actually shoot.

Fireball

abbreviation:  See FR-#

Fireroom

engineering:  A compartment containing boilers and the station for "firing" or operating same.

FirsTaskFlt

abbreviation:  First Task Fleet

Fis

abbreviation:  Fiscal

fittings, pipe

nautical:  A term applied to the connections and outlets, with the exception of valves and couplings, that are attached to pipes.

FIU

abbreviation:  Forward Interpretation Unit (Army)

fixed light

nautical:  A thick glass, usually circular in shape, fitted in a frame fixed in an opening in a ship’s side, deck house, or bulkhead to provide access for light. The fixed light is not hinged. Often incorrectly called a dead light.

FJ

abbreviation:  Single-engine Navy fighter (VF), manufactured by North American

Fl. Pl.

blueprints:  Flange Plate.

Fl

abbreviation:  Flashing

FL

abbreviation:  Florida

FL

abbreviation:  Small Signal Search Light

FLA

abbreviation:  Florida

FlaGrp

abbreviation:  Florida Group

flagstaff

nautical:  Flag pole, usually at the stern of a ship; carries the ensign.

Flak

abbreviation:  German anti-aircraft fire; now applied generally to all anti-aircraft fire

flam

nautical:  A term used to express the same meaning as flare, but more properly used to denote the maximum curl or roll given to the flare at the upper part, just below the weather deck.

flange

nautical:  The turned edge of a plate or girder which acts to resist bending. The turned edge of a plate or shape for tying in intersecting structural members. A casting or forging attached to or worked integral with a pipe to form a disk, normal to the axis of an exterior to the pipe, for connecting lengths of pipe,

Flank speed

orders:  One quarter more than standard speed except for cruisers, destroyers, light mine layers and fast aircraft carriers. In cruisers, destroyers, light mine layers and fast aircraft carriers it is ten knots more than standard speed.

flare

nautical:  The spreading out from a central vertical plane of the body of a ship with increasing rapidity as the section rises from the water line to the rail. Also a night distress signal.

flat

nautical:  A small partial deck, built without camber.

FLC

abbreviation:  Foreign Liquidation Commission

FldCk(B)

abbreviation:  Field Cook (Baker (USMC)

FldCK(C)

abbreviation:  Filed Cook (Commissary) (USMC)

FldCk

abbreviation:  Field Cook (*USMC)

FLE

abbreviation:  Fleet

Fleet Admiral

glossary:  The wartime commissioned navy rank above admiral; designated O-11. Abbreviated FADM.

Flemish down boat falls (or other lines)

orders:  To coil a line compactly and flat on the deck from the inside out in a clockwise direction.

FliCon

abbreviation:  Flight Controller

FLO

abbreviation:  Florida

FLO

abbreviation:  Follow(ing)

floating power

nautical:  The sum of the utilized and the reserve buoyancy of a vessel, or the displacement of the completely watertight portion of the vessel when fully submerged. The utilized buoyancy is that buoyancy required to support the weight of the vessel.

floodable length

nautical:  The length of a vessel which may be flooded without sinking her below her safety or margin line. The value of the floodable length of a given vessel varies from point to point throughout her length due to change in form. Similarly at a given point it varies from time to time, depending upon the condition of loading and the permeability of the cargo.

floor

nautical:  A plate used vertically in the bottom of a ship running athwartship from bilge to bilge usually on every frame to deepen it. In wood ships, the lowest frame timber or the one crossing the keel is called the floor.

FLOT

abbreviation:  Flotilla

FLP or Flt

abbreviation:  Fleet

FLP

abbreviation:  Fighting Landplane

Flt

abbreviation:  Flight

FltAct

abbreviation:  Fleet Activities

FltCert

abbreviation:  Flight Certificate

FltGunSch

abbreviation:  Fleet Gunnery School

FltLOSCAP

abbreviation:  Fleet Liaison Officer, Supreme Commander Allied Powers

FltServScol

abbreviation:  Fleet Service School

FltSoundScol

abbreviation:  Fleet Sound School

FltTraCen

abbreviation:  Fleet Training Center

flukes

nautical:  The palms or broad holding portions at the arm extremities of an anchor, which penetrate the ground.

flux

nautical:  A fusable material or gas used to dissolve or prevent the formation of oxides, nitrides, or other undesirable inclusions formed in welding and brazing.

FLY

abbreviation:  Flight

Flying Fortress

abbreviation:  See PB- 1W

FM-#

abbreviation:  "Wildcat"; single-engine Navy fighter (VF), manufactured by General Motors

FM

abbreviation:  Field Manual (Army)

FM

abbreviation:  Field Music (USMC)

FM

abbreviation:  Frequency Modulation

FM

abbreviation:  Titanium Tetrachloride

FMAW

abbreviation:  First Marine Aircraft Wing

FMCorp

abbreviation:  Field Music Corporal (USMC)

FMCpl

abbreviation:  Filed Music Corporal (USMC)

FMF

abbreviation:  Fleet Marine Force (USMC)

FMFPac

abbreviation:  Fleet Marine Force, Pacific Ocean Areas

FMO

abbreviation:  Fleet Maintenance Office(r)

FMO

abbreviation:  Fleet Medical Officer

FMR

abbreviation:  Fairbanks Morse Reversible Diesel Drive

FMS

abbreviation:  Field Music School (USMC)

FMSgt

abbreviation:  Field Music Sergeant (USMC)

FNOIO

abbreviation:  Fleet Naval Ordnance Inspecting Officer

FO

abbreviation:  Field Order (Army)

FO

abbreviation:  Flag Officer

FO

abbreviation:  Flight Order

FOB

abbreviation:  Forward Observer Bombardment

FOB

abbreviation:  Free On Board

FOBAA

abbreviation:  Flag Officer British Assault Area (GB)

Focstle. Dk.

blueprints:  Forecastle Deck.

FOCWA

abbreviation:  Flag Officer Commanding West Africa (GB)

FOIC

abbreviation:  Flag Officer-in-Charge (British controlled port)

FONAP

abbreviation:  Flag Officer, Naval Air, Pacific (GB)

FONF

abbreviation:  Flag Officer Newfoundland (GB)

FOO

abbreviation:  Forward Observation Officer

footings

nautical:  Bottom boards of walking flats attached to the inside of the frames of small boats where deep floors are not fitted.

FOR

abbreviation:  Force(s)

Ford.

blueprints:  Forward.

FORD

abbreviation:  Foreign Office Research Department (GB)

fore and aft

nautical:  Lengthwise of a ship.

Fore in hand

orders:  To hold a line by hand while being made fast to a cleat.

fore peak

nautical:  The extreme forward end of the vessel below decks. The forward trimming tank.

fore

nautical:  A term used in indicating portions or that part of a ship at or adjacent to the bow. Also applied to that portion and parts of the ship lying between the midship section and stem; as, fore body, fore hold, and foremast.

forecastle

nautical:  A short structure at the forward end of a vessel formed by carrying up the ship’s shell plating a deck height above the level of her uppermost complete deck and fitting a deck over the length of this structure. The name applied to the crew’s quarters on a merchant ship when they are in the fore part of the vessel.

forefoot

nautical:  The lower end of a vessel’s stem which is stepped on the keel. That point in the forward end of the keel about which the boat pivots in an endwise launching.

forehook

nautical:  See "breast hook".

forenoon

glossary:  8 a.m. to Noon (0800 to 1200 on the deck logs).

forging

nautical:  A mass of metal worked to a special shape by hammering, bending, or pressing while hot.

fork beam

nautical:  A half beam to support a deck here hatchways occur.

Forward gyro out, all repeaters shifted to after compass

orders:  A report that master compasses have been shifted.

forward perpendicular

nautical:  A line perpendicular to the base line and intersecting the forward side of the stem at the designed waterline.

forward

nautical:  In the direction of the stem.

Forwarder

abbreviation:  See GK-#

FOTALI

abbreviation:  Flag Officer Taranto and Adriatic and for liaison

foul

nautical:  A term applied to the underwater portion of the outside of a vessel’s shell when it is more or less covered with sea growth or foreign matter. It has been found that even an oily film over the vessel’s bottom will retard the speed, while sea growth will reduce a vessel’s propulsive efficiency to a large extent. Also, obstructed or impeded by an interference, etc.

found

nautical:  To fit and bed firmly. Also, equipped.

founder

nautical:  To sink as the result of entrance of water.

FOWABPF

abbreviation:  Flag Officer Western Area, British Pacific Fleet

Fox

abbreviation:  "F" in the phonetic alphabet

Fox

abbreviation:  A broadcast method of communication which does not require an answer from the stations addressed

FP

abbreviation:  Freight and Passenger Vessels (Army)

FPA

abbreviation:  Food Production Administration

FPC

abbreviation:  Federal Power Commission

FPHA

abbreviation:  Federal Public Housing Authority

FPL

abbreviation:  Final Protective Line (Army)

FPO

abbreviation:  Fleet Post Office

FPT

abbreviation:  Full Power Trial

Fr P

abbreviation:  Parachute Fragmentation Bomb

FR-#

abbreviation:  "Fireball"; single-engine Navy fighter (VF) manufactured by Ryan

Fr.

blueprints:  Frame.

FR

abbreviation:  Fighter Reconnaissance

FR

abbreviation:  Flash Ranging (Army)

FR

abbreviation:  Fleet Reserve

FR

abbreviation:  Fragmentation

FR

abbreviation:  From

FRAG Bomb

abbreviation:  Fragmentation Bomb

frame lines

nautical:  Molded lines of a vessel as laid out on the mold loft floor for each frame, showing the form and position of the frames.

frame spacing

nautical:  The fore-and-aft distances between frames, heel to heel.

frame, boss

nautical:  A frame that is bent to fit around the boss in the way of a stern tube or shaft.

frame

nautical:  A term generally used to designate one of the transverse ribs that make up the skeleton of a ship. The frames act as stiffeners, holding the outside plating in shape and maintaining the transverse form of the ship.

FRB

abbreviation:  Federal Reserve Bank

FRC

abbreviation:  Faculty Review Committee

Frcu

abbreviation:  Fractocumulus

Frd Enl

abbreviation:  Fraudulent Enlistment

Freebd.

blueprints:  Freeboard.

freeboard

nautical:  The vertical distance from the waterline to the top of the weather deck at side.

freeing ports

nautical:  Holes in the lower portion of a bulwark, which allow deck wash to drain off into the sea. Some freeing ports have swinging gates which allow water to drain off but which are automatically closed by sea-water pressure.

FREN

abbreviation:  French

Freq

abbreviation:  Frequency

FrF

abbreviation:  Free French

FRO

abbreviation:  Fleet Records Office

FrOF

abbreviation:  Freight Office

FRON

abbreviation:  Frontier

FRPS

abbreviation:  Foreign Research and Press Service (GB)

FRRU

abbreviation:  Freight Receiving and Redistribution Unit

FRS

abbreviation:  Federal Reserve System

FRU

abbreviation:  Fleet Requirements Units (Aircraft)

FRUPac

abbreviation:  Fleet Radio Unit, Pacific

FS Ships

abbreviation:  Fire Support Ships

FS

abbreviation:  Feet per second (ordnance)

FS

abbreviation:  Final Settlement

Fs

abbreviation:  Fractostratus

FS

abbreviation:  Sulphur Trioxide in Chlorosulfonic Acid

FS

abbreviation:  Supply Division (USCG)

FSA

abbreviation:  Travel chargeable to applicable allotment authority under Finance Service, Army

FSB

abbreviation:  Federal Specifications Board

FSD

abbreviation:  Foreign Sea Duty

FSEC

abbreviation:  Federal Specifications Executive Committee (now FSB)

FSO

abbreviation:  Fleet Supply Officer

FSR

abbreviation:  Field Service Regulations (Army)

FSR

abbreviation:  Fin Stabilized Rockets

FSS

abbreviation:  Fleet Service School

FSS

abbreviation:  Foreign Shore Service (USMC)

FSU

abbreviation:  Ferry Service Unit

FT-#

abbreviation:  "Black Widow"; two-engine Navy fighter (VF(M)), manufactured by Northrop

FTC

abbreviation:  Federal Trade Commission

FtgDives

abbreviation:  Footage Drives

FTP

abbreviation:  Fleet Training Publication

Ftr

abbreviation:  Fighter

FTT

abbreviation:  Fever Therapy Technician

FTU

abbreviation:  Field Torpedo Unit

FUBAR

abbreviation:  Fouled Up Beyond All Recognition

Full speed

orders:  One eighth more than standard speed except for cruisers, destroyers, light mine layers and fast aircraft carriers. In cruisers, destroyers, light mine layers and fast aircraft carriers it is five knots more than standard speed.

FUMTU

abbreviation:  Fouled Up More Than Usual

Fur

abbreviation:  Furlough

FURAS

Bureau of Personnel Condensation Code:  For Further Assignment

FURASPERS

Bureau of Personnel Condensation Code:  For Further Assignment by the Bureau of Naval Personnel

FURASUB(S)

Bureau of Personnel Condensation Code:  For Further Assignment to Duty in Submarine(s)

Furl awnings

orders:  Roll awnings and secure them.

furnaced plate

nautical:  A plate that requires heating in order to shape it as required.

FURNARSER

abbreviation:  Furnish full names, rates, and service numbers of men transferred in accordance with this directive

furrings

nautical:  Strips of timber, metal, or boards fastened to frames, joists, etc., in order to bring their faces to the required shape or level, for attachment of sheathing, ceiling, floor, etc.

FUSA

abbreviation:  First United States Army

FUSAG

abbreviation:  First United States Army Group

FUT

abbreviation:  Fleet Utility

futtocks

nautical:  The pieces of timber of which a frame in a wood ship is composed. Starting at the keel they are called the first futtock, second futtock, third futtock, and so on.

FW

abbreviation:  Foster Wheeler (boilers)

FWA

abbreviation:  Federal Works Agency

FWD

abbreviation:  Forward

FwdArea

abbreviation:  Forward Area

FWI

abbreviation:  French West Indies

FWOP

abbreviation:  Furloughed Without Pay

FX

abbreviation:  Tenth Fleet

FY

abbreviation:  Fiscal Year

G-1

abbreviation:  Personnel (War Department General Staff or USMC)

G-2

abbreviation:  Intelligence (War Department and USMC)

G-3

abbreviation:  Operations (War Department and USMC)

G-4

abbreviation:  Supply (War Department and USMC)

G-5

abbreviation:  PWB Branch of SHAEF

G-6

abbreviation:  CAD Branch of SHAEF

G/S

abbreviation:  General Support (Army)

G

abbreviation:  First letter in the Navy aircraft designation, indicating a transport plane (single-engine)

G

abbreviation:  Globe Corporation (Aircraft Division (manufacturer’s symbol)

G

abbreviation:  Goodyear Aircraft Corporation (manufacturer’s symbol)

G

abbreviation:  Great Lakes Engineering Corporation (plane manufacturer’s symbol)

G

abbreviation:  Group; e.g.: as, CVG (Aircraft Carrier Group)

GA

abbreviation:  Gage Man

GA

abbreviation:  Gasoline Stowage and Fuel System Man

GA

abbreviation:  Georgia

GA

abbreviation:  Ground Attacker Aircraft

GAA

abbreviation:  General Account of Advances

GAF

abbreviation:  German Air Force

gaff

nautical:  A spar to which the top of a fore-and-aft sail is attached. It is usually fitted with a jaw at the mast end to clasp the mast.

gage, draft

nautical:  An installation comprising a graduated glass tube, connected at the bottom end with the sea and with the top end open to the air, on which the draft of the vessel is shown by the level of water in the tube.

GAI

abbreviation:  General Accounting Instructions

Gal

abbreviation:  Gallon

galley

nautical:  The space on a vessel in which the food is prepared and cooked.

galvanizing

nautical:  The process of coating one metal with another, ordinarily applied to the coating of iron or steel with zinc. The chief purpose of galvanizing is to prevent corrosion.

gangboard, gangplank

nautical:  A term applied to boards or a movable platform used in transferring passengers or cargo from a vessel to or from a dock.

gangway

nautical:  The term applied to a place of exit from a vessel. Gangways are fitted in the sides of a vessel in the shape of ports requiring means of closure or may be movable portions of bulwarks or railing on the weather decks.

gantline or girtline

nautical:  A rope reeving through a single block aloft and used for hoisting or lowering rigging, drying clothing and hammocks, etc.

GAO

abbreviation:  General Accounting Office

GAO

abbreviation:  General Administrative Order

Garbd. Stk.

blueprints:  Garboard Strake.

garboard

nautical:  The strakes of outside plating next to the keel. These strakes act in conjunction with the keel and are usually thicker than the other bottom strakes.

GARN

abbreviation:  Garrison

GAS

abbreviation:  Gasoline

gaskets

nautical:  Packing materials, by which air, water, oil, or steam tightness is secured in such places as on doors, hatches, steam cylinders, manhole covers, or in valves, between the flanges of pipes, etc. Such materials as rubber, canvas, asbestos, paper, sheet lead and copper, soft iron, and commercial products are extensively used.

GAT

abbreviation:  Guantanamo to Aruba to Trinidad (routing designation)

Gators

abbreviation:  Alligators; members of beach battalion at Little Creek Amphibious Training Base

GB

abbreviation:  "Traveler"; single-engine Navy utility (VJ), biplane, manufactured by Beech

GB

abbreviation:  General Board

GB

abbreviation:  Great Britain

GC

abbreviation:  Green Cove Springs, Florida

GC

abbreviation:  Gun Captain

GCA

abbreviation:  Ground Control Approach (radar)

GCI

abbreviation:  Ground Control Intercept (radar)

GCM

abbreviation:  General Court Martial

GCMed

abbreviation:  Good Conduct Medal

GCMP

abbreviation:  General Court Martial Prisoner

GCT

abbreviation:  Greenwich Civil Time

Gd

abbreviation:  Guard

GDP(CL)

abbreviation:  Gun Director Pointer (Cross Leveler)

GDP(L)

abbreviation:  Gun Director Pointer (Leveler)

GDP(P)

abbreviation:  Gun Director Pointer (Pointer)

GDP(SS)

abbreviation:  Gun Director Pointer (Sight Setter)

GDP(T)

abbreviation:  Gun Director Pointer (Trainer)

GDP

abbreviation:  Gun Director Pointer

GE

abbreviation:  General Electric Company

GE

abbreviation:  Great Exuma

gear

nautical:  A comprehensive term in general use on shipboard signifying the total of all implements, apparatus, mechanism, machinery, etc., appertaining to and employed in the performance of any given operation, as "cleaning gear," "steering gear," "anchor gear," etc.

gearing

nautical:  A term applied to wheels provided with teeth that mesh, engage, or gear with similar teeth on other wheels in such manner that motion given one wheel will be imparted to the other.

GED Tests

abbreviation:  General Educational Development Tests

GEN

abbreviation:  General

GEN

abbreviation:  USNR officer designation for General Service Reserve Pay Clerk

GenBoard

abbreviation:  General Board

GENDET

abbreviation:  General Detail (USCG)

General drills

orders:  Emergency drills for all hands, such as general quarters, abandon ship, fire, and collision.

General quarters

orders:  All hands man battle stations on the double.

Genl

abbreviation:  General

George

abbreviation:  "G" in the Phonetic alphabet

GER

abbreviation:  Germany

Get out all lines

orders:  Get all lines over to the piers.

GFE

abbreviation:  Government Furnished Equipment

GH-#

abbreviation:  "Nightingale"; single-engine Navy utility plane (VJ), manufactured by Howard

GHQ

abbreviation:  General Headquarters (Army)

GI Bill

abbreviation:  Veterans Benefits Act, PL345, 1944

GI

abbreviation:  Government Issue (Army)

GI

abbreviation:  U.S. Government Life Insurance (allotment for)

gib

nautical:  A metal fitting to hold a member in place or press two members together, to afford a wearing or bearing surface, or to provide a means of taking up wear.

gimbals

nautical:  A device by which a ship’s compass, chronometer, etc., is suspended so as to remain in a constant horizontal position irrespective of the rolling or pitching of the vessel. It consists of two concentric brass hoops or rings whose diameters are pivoted at right angles to each other on knife-edge bearings.

Gird.

blueprints:  Girder.

girders

nautical:  On ships this term is used to define a structural member which provides support for more closely spaced members, such as beams, frames, stiffeners, etc., which are at right angles to it and which either rest upon it or are attached to its web. It may be longitudinal or transverse, continuous or intercoastal, and is usually supported by bulkheads and stanchions. The term is also used to designate the longitudinal members in the double bottom.

GIRO

abbreviation:  General Instructions for Routing and Reporting Officers

girth

nautical:  The distance measured on any frame line, from the intersection of the upper deck with the side, around the body of the vessel to the corresponding point on the opposite side.

GIU

abbreviation:  General Intelligence Unit (US) (London)

Give away

orders:  An order to begin rowing (pulling boats).

Give her more rudder

orders:  Increase the rudder angle already on, to make her turn more rapidly.

GK-#

abbreviation:  "Forwarder"; single-engine Navy utility plane (VJ), manufactured by Fairchild

GK

abbreviation:  Guantanamo to Key West (routing designation)

Gldr

abbreviation:  Glider

GLO

abbreviation:  Gunnery Liaison Officer

Glomb

abbreviation:  Navy glider equipped with Block

GM (GMC)

abbreviation:  General Motors Corporation

GM

abbreviation:  (Pertaining to) Guided Missiles

GM

abbreviation:  Galveston to Mississippi River (routing designation)

GM

abbreviation:  Guard Mail

GM

abbreviation:  Gunner’s Mate

GMCB

abbreviation:  Gunner’s Mate, Construction Battalion

GMCBG

abbreviation:  Gunner’s Mate, Construction Battalion, Armorer

GMCBP

abbreviation:  Gunner’s Mate, Construction Battalion Powderman

GMCM

abbreviation:  Guided Missile Counter-Measures

GMSR

abbreviation:  Gunner’s Mate, Ship Repair

GMSRP

abbreviation:  Gunner’s Mate, Ship Repair, Powderman

GMT

abbreviation:  Greenwich Mean Time

GMT

abbreviation:  Short Hull, General Motors Tandem Diesel Drive

GN

abbreviation:  Guantanamo to New York (routing designation)

GO

abbreviation:  General Order

GOC

abbreviation:  General Officer Commanding

Goose

abbreviation:  See JRF-#

gooseneck

nautical:  A swiveling fitting on the keel or mast end of a boom for connecting the boom to the mast. Also called a Pacific iron.

GOP

abbreviation:  General Operational Plot

GOV

abbreviation:  Governor

GOVAIR

Bureau of Personnel Condensation Code:  Including government air

GOVAIRDIR

Bureau of Personnel Condensation Code:  In performing the above travel government air is directed where necessary (or between points specified) to expedite completion of this duty

GOVMERAIR

Bureau of Personnel Condensation Code:  Including government or commercial air

GOVMERAIRAUTH

Bureau of Personnel Condensation Code:  In performing the above travel government air and/or commercial air is authorized where necessary to expedite completion of this duty

GOVMERAIRDIR

Bureau of Personnel Condensation Code:  In performing the above travel government air and/or commercial air is directed where necessary to expedite completion of this duty

Govt Ins

abbreviation:  Government Insurance (NSI or GI)

Govt

abbreviation:  Government

GP Bomb

abbreviation:  General Purpose Bomb

Gp Fl

abbreviation:  Group Flashing

Gp Occ

abbreviation:  Group Occulting

GP

abbreviation:  Galveston to Pilottown (routing designation)

GP

abbreviation:  General Purpose

GP

abbreviation:  Gun Pointer

GPO

abbreviation:  Government Printing Office

GQ

abbreviation:  General Quarters

GR

abbreviation:  Geared Radial (aircraft engine)

GR

abbreviation:  General Reconnaissance (USMC)

GR

abbreviation:  Group, as COMAIRSHIPGR

grab, hand

nautical:  A metal bar fastened to a bulkhead, house side, or elsewhere, to provide means of steadying a person when the ship rolls or pitches.

GRABADHARV

Bureau of Personnel Condensation Code:  Graduate School of Business Administration, Harvard University

grapnel

nautical:  An implement having from four to six hooks or prongs, usually four, arranged in a circular manner around one end of a shank having a ring at its other end. Used as an anchor for small boats, for recovering small articles dropped overboard, to hook on to lines, and for similar purposes. Also known as a Grappling Hook.

Grass

abbreviation:  Noise (as seen on radar scope)

Grasshopper

abbreviation:  See AE-#, NE-#

gratings

nautical:  A structure of wood or metal bars so arranged as to give a support or footing over an opening, while still providing spaces between the members for the passage of light and the circulation of air.

GRB

abbreviation:  Government Reservation Bureau

GRD

abbreviation:  Guard

GRE

abbreviation:  Greenland, as COMGREPAT

GrePat

abbreviation:  Greenland Patrol

GRFO

abbreviation:  Gun Range-Finder Operation

gripe

nautical:  The sharp forward end of the dished keel on which the stem is fixed. A curved piece of timber joining the forward end of the keel and the lower end of the cutwater. A lashing, chain, or the like, used to secure small boats in the chocks and in sea position in the davits.

grommet

nautical:  A wreath or ring of rope. Fibre, usually soaked in red lead or some such substance, and used under the heads and nuts of bolts to secure tightness. A worked eye in canvas.

ground tackle

nautical:  A general term for all anchors, cables, ropes, etc., used in the operation of mooring and unmooring a ship.

groundways

nautical:  Timbers fixed to the ground and extending fore and aft under the hull on each side of the keel, to form a broad surface track on which the ship is end-launched. "Groundways" for a side launching embody similar basic features.

GRU

abbreviation:  Group

GruCom

abbreviation:  Group Commander

GS

abbreviation:  General Staff (Army)

GS

abbreviation:  Greenland to St. Johns, N.F. (routing designation)

GS

abbreviation:  Guardship

GSC

abbreviation:  General Staff Corps (Army)

GSF

abbreviation:  Gulf Sea Frontier

GSGS

abbreviation:  Geographical Section General Staff (GB)

GSk

abbreviation:  General Storekeeper

GSK

abbreviation:  General Stores

GSR

abbreviation:  General Service Recruit

GSS

abbreviation:  General Service Schools (Army)

GSS

abbreviation:  General Supply Schedule

GSU

abbreviation:  General Service Unit (USMC)

GT

abbreviation:  Guantanamo, Cuba

Gtmo

abbreviation:  Guantanamo, Cuba

GU

abbreviation:  Guam (Naval Operating Base)

gudgeons

nautical:  Lugs cast or forged on the stern post for the purpose of hanging and hinging the rudder. Each is bored to form a bearing for a rudder pintle and is usually bushed with lignum vitae or white bearing metal.

GulfCoBaseServUnit

abbreviation:  Gulf Coast Base Service Unit

GulfCon

abbreviation:  Gulf Control

GulfSeaFron

abbreviation:  Gulf Sea Frontier

Gulls

abbreviation:  Balloon Supported Radar Reflectors to simulate target

GUN

abbreviation:  Gunboat

Gun

abbreviation:  Gunner

GUN

abbreviation:  Gunnery

Gunner

glossary:  A warrant officer specializing in gunnery; a term borrowed from the marines.

GUNS

abbreviation:  Gunner’s Mate

GunSgt

abbreviation:  Gunnery Sergeant (USMC)

gunwale bar

nautical:  A term applied to the bar connecting a stringer plate on a weather deck to the sheer strake.

gunwale

nautical:  A term applied to the line where a weather deck stringer intersects the shell. The upper edge of the side of an open boat.

gusset plate

nautical:  A bracket plate lying in a horizontal, or nearly horizontal, plane. The term is often applied to bracket plates.

gutter edge

nautical:  A bar laid across a hatchway to support the hatch cover.

guys

nautical:  Wire or hemp ropes or chains to support booms, davits, etc., laterally, employed in pairs. Guys to booms that carry sails are also known as backropes.

GW

abbreviation:  General Warning

GY

abbreviation:  Gyro

gypsy

nautical:  A small auxiliary drum usually fitted on one or both ends of a winch or windlass. The usual method of hauling in or slacking off on ropes with the aid of a gypsy is to take one or more turns with the bight of the rope around the drum and to take in or pay out the slack of the free end.

GySgt

abbreviation:  Gunnery Sergeant (USMC)

GZ

abbreviation:  Guantanamo to Panama Canal Zone (routing designation)

H & RP

abbreviation:  Holding and Reconsignment Point (Army)

H-Hour

abbreviation:  Hour set for attack or other operation to begin (on D-Day)

H-minus 1, 2, etc.

abbreviation:  1, 2, etc. hours before hour of attack

H-plus 1, 2, etc.

abbreviation:  1, 2, etc. hours after hour of attack

H-V(P)

abbreviation:  USNR designation for medical and dental students, appointed as ensigns, for special duties in connection with the Medical COrps of the Navy. This classification was abolished in September 1944 and replaced by H(P) Corps.

H-V(S)

abbreviation:  USNR designation for commissioned and warrant officers qualified for specialist duties in connection with the Medical Corps of the Navy. This classification was abolished in September 1944 and replaced by H(S).

H. L.

blueprints:  Horizontal Line.

H. P.

blueprints:  Hawse Pipe.

H. R.

blueprints:  Half Round.

H(S)

abbreviation:  USNR officer designation for Special Service, Special Duty in Medical Corps, restricted to those formerly H-VS.

H/W

abbreviation:  Highway

H&H

abbreviation:  Harlan & Hollingsworth (ship engines)

H&S Tr

abbreviation:  Headquarters and Service Troop (Army)

H&S

abbreviation:  Headquarters and Service (Army)

H

abbreviation:  Hall-Aluminum Aircraft Corporation (now Consolidated-Vultee Aircraft Corporation) (manufacturer’s symbol)

H

abbreviation:  Heavier-than-air rotary wing aircraft (helicopter)

H

abbreviation:  Heavy or 4-engine plane

H

abbreviation:  Hospital plane (suffix to plane designation), as PBJ-2H

H

abbreviation:  Howard Aircraft Corporation (manufacturer’s symbol)

H

abbreviation:  Medical Department aboard a carrier

H

abbreviation:  Mustard gas

H

abbreviation:  Stearman-Hammond Aircraft Corporation (manufacturer’s symbol)

HA

abbreviation:  Headquarters Administration Division (USCG)

HA

abbreviation:  Home Address

HA

abbreviation:  Hospital Apprentice

HAC

abbreviation:  Haitian Air Corps

half model

nautical:  A model of one-half of a ship divided along the middle vertical plane.

half-breadth plan

nautical:  A plan or top view of one-half of a ship divided by the middle vertical plane. It shows the waterlines, cross section lines, bow and buttock lines, and diagonal lines of the ship’s form projected on the horizontal base plane of the ship.

halyards

nautical:  Light lines used in hoisting signals, flags, etc. Also applied to the ropes used in hoisting gaffs, sails, or yards.

Hamp

glossary:  Mitsubishi A6M Reisen with clipped wing tips. A variant on the Zeke fighter.

hamper, top hamper

nautical:  Articles of outfit, especially spars, rigging, etc., above the deck, which, while ordinarily indispensable, may become in certain emergencies both a source of danger and an inconvenience.

Handsomely

orders:  Slowly and carefully with the emphasis on carefully as "Walk Back Handsomely".

hard patch

nautical:  A plate riveted over another plate to cover a hole or break.

harpings; harpins

nautical:  The fore parts of the wales of a vessel which encompass her bows and are fastened to the stem, thickened to withstand plunging. The ribbands bent around a vessel under construction to which the cant frames are temporarily secured to hold them in their proper position.

Harpoon

abbreviation:  See PV-2

hatch bar

nautical:  A term applied to flat bars used for securing and locking hatch covers. A bar over the hatch for rigging a tackle.

hatch battens

nautical:  A term applied to flat bars used to fasten and make tight the edges of the tarpaulins that are placed over hatches. The batten and the edge of the tarpaulin are wedged tightly in closely-spaced cleats.

hatch beams

nautical:  A term applied to the portable beams fitted to the coamings for the purpose of supporting the hatch covers.

hatch carrier

nautical:  The supports which are attached to the inside of the coaming to take the ends of the hatch beams.

hatch cleats

nautical:  A term applied to the clips attached to the outside of the hatch coaming for the purpose of holding the hatch battens and wedges which fasten the edges of the tarpaulin covers.

hatch covers or hatches

nautical:  Covers for closing the hatchway, in cargo ships usually made of wood planks in sections that can be handled by the crew. In naval ship, steel hatch covers are used. The wood cover is made tight against rain and the sea by stretching one or more tarpaulins over them, secured at the edges by the hatch battens.

hatch rests

nautical:  A term applied to the shelf fitted inside and just below the top of the coaming for the purpose of supporting the hatch covers.

hatch, booby

nautical:  An access hatchway leading from the weather deck to the quarters. A small companion which is readily removable in one piece. A wooden, hoodlike covering for a hatchway, fitted with a sliding top.

hatch, hatchway

nautical:  An opening in a deck through which cargo may be handled, machinery or boilers installed or removed, and access obtained to the decks and holds below. Hatch is properly a cover to a hatchway but is often used as a synonym for hatchway.

hatchway trunk

nautical:  A term applied to the space between a lower deck hatchway and the hatchway or hatchways immediately above it when enclosed by a casing. A trunk may be either watertight or nonwatertight.

Haul over all gun covers (or other covers as directed)

orders:  Put the stated covers on to protect from moisture.

Haul over hatch hoods

orders:  Put hatch hoods in place.

HAV

abbreviation:  Heavily Armed Vessels

Havoc

abbreviation:  See BD-#

Haw Dept

abbreviation:  Hawaiian Department

HAW

abbreviation:  Hawaiian, as COMHAWSEAFRON (Commander Hawaiian Sea Frontier)

hawse bag

nautical:  A conical-shaped canvas bag, stuffed with sawdust, oakum, or similar material, and fitted with a lanyard at apex and base, used for closing the hawse pipes around the chain to prevent shipping water through the pipes; also called a "jackass", "hawse plug", or "hawse block".

hawse bolster

nautical:  A timber or metal bossing at the ends of a hawse pipe to ease the cable over the edges and to take the wear.

hawse hole

nautical:  A hole in the bow through which a cable or chain passes.

hawse pipes

nautical:  Tubes leading the anchor chain from the deck on which the windlass is located down and forward through the vessel’s bow plating.

hawse

nautical:  The hawse hole; also the part of a ship’s bow in which the hawse holes for the anchor chains are located.

HawSeaFron

abbreviation:  Hawaiian Sea Frontier

hawser

nautical:  A large rope or a cable used in warping, towing, and mooring.

Hayrake

abbreviation:  Radar beacon and homing device (YE)

HB

abbreviation:  Heavy Bomber

HB

abbreviation:  Horizontal bomber

HBDC

abbreviation:  Home Base Development Committee (OpNav)

HBS

abbreviation:  Harbor Boat Service

HC-V(G)

abbreviation:  USNR designation for Hospital Corps officers, commissioned and warrant, including pharmacists, qualified for general detail ashore or afloat. This classification was abolished in September 1944 and replaced by HC or HC(S).

HC-V(S)

abbreviation:  USNR designation for commissioned and warrant officers, including pharmacists, qualified for specialist duties in connection with the Medical Corps of the Navy. This classification was abolished in September 1944 and replaced by HC or HC(S).

HC

abbreviation:  Hexachlorethane Mix

HC

abbreviation:  High Capacity

HC

abbreviation:  Hospital Corpsman

HC

abbreviation:  USN Reserve designation for Hospital Corps, USN

HCA

abbreviation:  Absent by reason of being held by civil authorities

HCCG

abbreviation:  Discharge under honorable conditions, convenience of government

HCCM

abbreviation:  Discharge under honorable conditions, convenience of man

HCDP

abbreviation:  Discharge under honorable conditions, dependency existing prior to enlistment

HCEE

abbreviation:  Discharge under honorable conditions, expiration of enlistment

HCMS

abbreviation:  Discharge under honorable conditions, medical survey

HCMU

abbreviation:  Discharge under honorable conditions, under age of authorized enlistment

HCMW

abbreviation:  Discharge under honorable conditions, minors enlisted without consent, under 18 at time of discharge

HCO

abbreviation:  Hanger Control Officer

HCP

abbreviation:  Hangar Control Position

HCR

abbreviation:  USNR officer designation for General Service, Hospital Corps. Formerly HC.

HCS

abbreviation:  USNR officer designation for Special Service, Hospital Corps. Formerly HC(S).

HCUS

abbreviation:  Discharge under honorable conditions, unsuitable

HCW

abbreviation:  USNR officer designation for Women’s Reserve, Hospital Corps. Formerly HC(W).

HD

abbreviation:  Harbor Defense (Army)

HD

abbreviation:  Hydraulics

HDC

abbreviation:  Harbor Defense Command (Army)

HDCG

abbreviation:  Honorable discharge, convenience of government

HDCM

abbreviation:  Honorable discharge, convenience of man

HDDP

abbreviation:  Honorable discharge, dependency existing prior to enlistment

HDDS

abbreviation:  Honorable discharge, dependency arising since enlistment

HDEE

abbreviation:  Honorable discharge, expiration of enlistment

HDMS

abbreviation:  Honorable discharge, medical survey

HDMU

abbreviation:  Honorable discharge, under age of authorized enlistment

HDMW

abbreviation:  Honorable discharge, minors enlisted without consent, under 18 at discharge

HDNPRSGR

abbreviation:  Headquarters Squadron personnel Group

Hdr

abbreviation:  Header type (boiler)

HDR

abbreviation:  Home Dockyard Regulations

HDV

abbreviation:  Horse Drawn Vehicle

HE

abbreviation:  High Explosive

head ledge

nautical:  A term applied to the forward or after end coaming of a hatch, more frequently used in connection with wood coamings.

head of a ship

nautical:  The fore end of a ship which was formerly fitted up for the accommodation of the crew. A term applied to a toilet on board of a ship. A ship is trimmed by the head when drawing more water forward and less aft than contemplated in her design.

Heave round

orders:  To bring in the anchor. To revolve the drum of a capstan, winch or windlass.

Heave short

orders:  Heave in chain until anchor is at short stay, (i.e. just resting on the bottom).

HECP

abbreviation:  Harbor Entrance Control Post

HECPost

abbreviation:  Harbor Entrance Control Post

HED

abbreviation:  Headquarters; as COMHEDRONFAIRWING

HedRon

abbreviation:  Headquarters Squadron

HedRonFairWing

abbreviation:  Headquarters Squadron Fleet Air Wing

heel piece, heel bar

nautical:  A bar that serves as a connecting piece between two bars which butt end-to-end. The flange of the heel bar is reversed from those of the bars it connects.

heel

nautical:  The convex intersecting point or corner of the web and flange of a bar. The inclination of a ship to one side, caused by wind or wave action or by shifting weights on board.

HEI

abbreviation:  High Explosive Incendiary

HEIT

abbreviation:  High Explosive Incendiary Traced

Hellcat

abbreviation:  See F6F-#

Helldiver

abbreviation:  See SB2C-#, SBF-#, SBW-#

helm

nautical:  The term applied to the tiller, wheel, or steering gear, and also the rudder.

HERALDS

abbreviation:  Harbor Echo Ranging and Listening Devices

HERDESNAVAV

Bureau of Personnel Condensation Code:  Hereby designated as student naval aviator

HERDET

Bureau of Personnel Condensation Code:  Hereby detached from duty indicated and from such other duty as may have been assigned

HERDUFLY

Bureau of Personnel Condensation Code:  Hereby detail to duty involving flying upon reporting in obedience to these orders

HESO

abbreviation:  Hospital Educational Service Officer

HET

abbreviation:  High Explosive Traced

HF/DF

abbreviation:  High Frequency Direction Finder

HF

abbreviation:  Fighter Aircraft fitted with engine rated for high altitude performances

HF

abbreviation:  High Frequency radio

HH

abbreviation:  Hedge Hogs

HHE

abbreviation:  Household Effects

HHX

abbreviation:  Halifax Joiner to HX Convoy (routing designation)

HI

abbreviation:  High

Hiatus Area

abbreviation:  Area outside of zone of communications (where Army not concerned with local population except as factors which in these areas might affect progress of allied armies)

HiCom

abbreviation:  High Command

HJ

abbreviation:  Utility helicopter

HK

abbreviation:  Galveston to Key West (routing designation)

Hlf. Bdth.

blueprints:  Half Breadth.

HMAS

abbreviation:  His Majesty’s Australian Ship

HMAS

glossary:  His Majesty’s Australian Ship.

HMBS

abbreviation:  His Majesty’s British Ship

HMCS

abbreviation:  His Majesty’s Canadian Ship

HMCS

glossary:  His Majesty’s Canadian Ship.

HMG

abbreviation:  His Majesty’s Government (GB)

HMIS

abbreviation:  His Majesty’s Indian Ship

HMNZS

abbreviation:  His Majesty’s New Zealand Ship

HMRP

abbreviation:  Hurricane Microseismic Research Problem (aerology)

HMS

abbreviation:  His Majesty’s Ship (GB)

HN

abbreviation:  Nitrogen Mustard Gases

HN

abbreviation:  Training Helicopter

HNS-#

abbreviation:  "Hoverfly"; Navy training helicopter (HN), manufactured by Sikorsky Air

HO

abbreviation:  Hydrographic Office

HO

abbreviation:  Observation helicopter

hog frame

nautical:  A fore-and-aft frame, forming a truss for the main frames of a vessel to prevent bending.

hog sheer

nautical:  The sheer curve of the deck on a vessel, constructed so that the middle is higher than the ends.

hog

nautical:  A scrub broom for scraping a ship’s bottom under water.

hogging

nautical:  A term applied to the distortion of a vessel’s hull when her ends drop below their normal position relative to her midship portion.

Hoist away

orders:  An order to haul up or commence hoisting.

hoist

nautical:  To raise or elevate by manpower or by the employment of mechanical appliances; any device employed for lifting weights.

Hold (two)

orders:  Take additional turns of line on bits and hold fast.

hold beams

nautical:  Beams in a hold similar to deck beams but having no decking or planking on them.

Hold water

orders:  An order to check a pulling boat’s headway by holding the blades of the oars vertically in the water with the oars at right angle to the keel.

hold

nautical:  The space or compartment between the lowermost deck and the bottom of the ship, or top of the inner bottom if one is fitted. The space below decks allotted for the stowage of cargo.

home

nautical:  Close up; snugly in place; as, to drive home a bolt.

HOMP

abbreviation:  Halifax Ocean Meeting point

Hon

abbreviation:  Honorable

Hono

abbreviation:  Honolulu, T.H.

hood

nautical:  A shelter over a companionway, scuttle, etc. It is generally built of canvas spread over an iron frame. It may also be constructed of light metal plating.

hooding end

nautical:  The endmost plate of a complete strake. The hooding-ends fit into the stem or stern post.

hoods

nautical:  A term applied to those plates placed at the extreme forward or after ends of a ship.

HOR

abbreviation:  Hoover, Owens, Rentschler Company (ship engines)

Horiz 3-exp

abbreviation:  Horizontal, triple expansion engine

Hornet"

abbreviation:  Naval aircraft engine, 9 cylinders, manufactured by Pratt and Whitney

horning

nautical:  Setting the frames of a vessel square to the keel after the proper inclination to the vertical due to the declivity of the keel has been given.

horse timber

nautical:  The after longitudinal strength member (often called counter timber) fastening the shaft log or keel and the transom knee together. A small boat term.

horsing

nautical:  (In naval architecture). Calking planking with oakum with a large maul or beetle and wedge-shaped iron.

HOS-#

abbreviation:  Navy observation helicopter (HO), manufactured by Sikorsky Air

HOSP RATS

abbreviation:  Hospital Rations

HOSP

abbreviation:  Hospital

housing

nautical:  A term applied to an inclosure partially or wholly worked around fittings or equipment. That portion of the mast below the surface of the weather deck. Applied to topmasts, that portion overlapping the mast below.

Hoverfly

abbreviation:  See HNS-#

How

abbreviation:  "H" in the phonetic alphabet, replaced the obsolete "Hypo"

How

abbreviation:  Howitzer

HP

abbreviation:  High Pressure

HP

abbreviation:  Horse Power

HP

abbreviation:  USNR officer designation; probationary commissioned, direct from civilian life, for special duties in Medical Corps; formerly H(P)

HPF

abbreviation:  Harbor Patrol Fleet

HPT

abbreviation:  Horizontal Plot Table

Hq or HQ

abbreviation:  Headquarters

Hq&Serv

abbreviation:  Headquarters and Service (USMC)

HQDP

abbreviation:  Headquarters, Department of the Pacific (USMC)

HQMC

abbreviation:  Headquarters, Marine Corps

HqSq

abbreviation:  Headquarters Squadron

HR (number)

abbreviation:  House of Representatives, Bill (number)

HR

abbreviation:  Transport helicopter

HS & SS

abbreviation:  Headquarters and Service Squadron

HS

abbreviation:  USNR officer designation for Special Service, commissioned direct from civilian life, special duties in medical Corps. Formerly H(S).

HSF

abbreviation:  Hawaiian Sea Frontier

HSL

abbreviation:  High Speed Launch

HTA

abbreviation:  Heavier Than Air

HTD

abbreviation:  Hand Target Designator

HTO

abbreviation:  Highway Transportation Officer (Army)

HTS

abbreviation:  High Tensile Steel

Hudson

abbreviation:  See PBO-#

Hula Unit

abbreviation:  Shipping designator for Lend-Lease transfer of material and training of personnel in 13th and 17th Naval Districts

hull

nautical:  The framework of a vessel, together with all decks, deck houses, and the inside and outside plating or planking, but exclusive of masts, yards, rigging, and all outfit or equipment.

Hun

abbreviation:  Hundred

HUSAFICPA

abbreviation:  Headquarters, U.S. Army Forces in Central Pacific Area

HV

abbreviation:  High Voltage

HW

abbreviation:  Herewith (enclosures)

HXF

abbreviation:  New York to Liverpool, Fast (routing designation)

HXHW

abbreviation:  USNR officer designation of men commissioned direct from civilian life, special duties in the Medical Corps. Formerly H(W).

HXM

abbreviation:  New York to Liverpool, Medium (routing designation)

HXS

abbreviation:  New York to Liverpool, Slow (routing designation)

Hydr

abbreviation:  Hydraulic

Hydro

abbreviation:  Hydrographic Office

Hydrog

abbreviation:  Hydrographic

Hypo

abbreviation:  "H" in the phonetic alphabet; now obsolete and replaced by "How"

I & N

abbreviation:  Immigration and Naturalization Service (Naval Intelligence)

I-V(S)

abbreviation:  USNR designation for commissioned intelligence officers qualified for specialist duties. This classification was abolished in September 1944 and replaced by S(I).

I. D.

blueprints:  Inside Diameter.

I.

blueprints:  I-Beam.

I/I

abbreviation:  Inventory and Inspection Report (Army)

I&E

abbreviation:  Information and Education (Army)

I&S

abbreviation:  (Board of) Inspection and Survey)

I

abbreviation:  Incendiary

I

abbreviation:  India

I

abbreviation:  To be inactivated

IA

abbreviation:  Inspection Administration

IAD

abbreviation:  Inactive Reservists: USN RET, USNR RET, USNR HON RET, and Fleet Reservists

IADB

abbreviation:  Inter-American Defense Board

IAS

abbreviation:  Indicated Air Speed

IATCB

abbreviation:  Interdepartmental Air Traffic Control Board

IAZ

abbreviation:  Inner Artillery Zone

IB

abbreviation:  Incendiary Bomb

IBH

abbreviation:  Initial Beachhead (Army)

IBM

abbreviation:  International Business Machine

IBS

abbreviation:  Island Base Section

IC&RR

abbreviation:  Inventory Control and Requirements Review Board (CNO)

IC

abbreviation:  Information Center

IC

abbreviation:  Interior Communications

ICB

abbreviation:  Interior Control Board

ICD

abbreviation:  Industrial Cooperation Division

ICE

abbreviation:  Iceland

IcePat

abbreviation:  Iceland Patrol

ICG

abbreviation:  Interviewer’s Classification Guide

ICIR

abbreviation:  In Commission, In Reserve (vessel status)

ICOC

abbreviation:  Instructions for Commodores of Convoys

ICOMP

abbreviation:  Iceland Ocean Meeting Point

ICPOA

abbreviation:  Intelligence Center, Pacific Ocean Areas

ID Card

abbreviation:  Identification Card

Id No

abbreviation:  Identification Number

ID

abbreviation:  Identification

ID

abbreviation:  Intelligence Duties

IDA

abbreviation:  Idaho

IDC

abbreviation:  Interdepartmental Committee (also INDEC)

IDFOR

abbreviation:  Idle Waiting Convoy Forward

IDG

abbreviation:  Idle Waiting to Load

IDLOD

abbreviation:  Inspector of Degaussing

IDREA

abbreviation:  Idle Other Reasons

IDS

abbreviation:  Instrument Development Section

IDSTO

abbreviation:  Idle Used for Storage

IE

abbreviation:  Initial Equipment (Aircraft)

IF

abbreviation:  Intercept and Broadcast

IFD

abbreviation:  Inter-Fighter Director

IFF

abbreviation:  Identification, Friend or Foe

IFHOM

abbreviation:  Idle Waiting Convoy Homeward

IFIS

abbreviation:  Instrument Flight Instructors School

IFU

abbreviation:  Intelligence Field Unit

IG

abbreviation:  Inspector General (Army)

IGD

abbreviation:  Inspector General’s Department (Army)

IL

abbreviation:  Illinois

Illum

abbreviation:  Illuminating

Illuminate

orders:  A command by Conn, to Control, to illuminate an arc or bearing. In the case of starshell illumination, Illuminate is a command for all or designated gun to load starshells. Directs pointer to close firing key. In the case of searchlight illumination, Illuminate is a command for searchlights to open shutters.

IMNP

abbreviation:  Symbol for thickened gasoline

IMPACT

abbreviation:  Periodical, published monthly by Assistant Chief of Air Staff Intelligence

IMREP

Bureau of Personnel Condensation Code:  Immediately Report

IMS

abbreviation:  Industrial Manpower Section

In bows

orders:  An order to the bow oarsman or oarsmen to boat their oars and stand by with boat hooks for a landing.

In manual (40 mm)

orders:  The mount is operated by hand power.

In. Bot.

blueprints:  Inner Bottom.

IN

abbreviation:  Interpreter

IN

abbreviation:  Journalist

IN

abbreviation:  Key Punch Operator and Supervisor

IN

abbreviation:  Radio Intelligence Specialist

INA/IC

abbreviation:  Inactive-In Commission, In Reserve (vessel status)

INA/IS

abbreviation:  Inactive-In Service, in Reserve (vessel status)

INA/OC

abbreviation:  Inactive-Out of Commission, In Reserve (vessel status)

INA/OS

abbreviation:  Inactive-Out of Service, in Reserve (vessel status)

INA

abbreviation:  Inspector of Naval Aircraft

InactFltLant

abbreviation:  Inactive Fleet, Atlantic Fleet

InactFltPac

abbreviation:  Inactive Fleet, Pacific Fleet

INACTLANT

abbreviation:  Inactive Fleet, Atlantic Fleet

INACTPAC

abbreviation:  Inactive Fleet, Pacific Fleet

Inb’d.

blueprints:  In-Board.

inboard profile

nautical:  A plan representing a longitudinal section through the center of the ship, showing deck heights, transverse bulkheads, assignment of space, machinery, etc., located on the center plane or between the center and the shell of the far side.

inboard

nautical:  Toward the center; within the vessel’s shell and below the weather decks.

INC Bomb

abbreviation:  Incendiary Bomb

INC

abbreviation:  Incorporated

INCAIR

Bureau of Personnel Condensation Code:  Including Air

INCEP

abbreviation:  Interceptor

Incl

abbreviation:  Include; including; inclusive

IND

abbreviation:  Indiana

Ind

abbreviation:  Induction

IND

abbreviation:  Industry (ial)

INDAIR

abbreviation:  Identification of Aircraft

INDEC

abbreviation:  Interdepartmental Committee (also IDC)

Indicating control

orders:  A method employed when the remote control system having failed, it is still possible to follow the signals transmitted from a distant station by manually matching indicators in the elevation, train, and fuze setting indicators.

Indirect fire

orders:  Firing at a target that cannot be seen.

Indiv

abbreviation:  Individual

Individual turret fire

orders:  Each turret keeps firing locally. The director uses continuous aim.

IndMan

abbreviation:  Industrial Manager

IndMgr

abbreviation:  Industrial Manager

Inf

abbreviation:  Infantry (Army)

INFO

abbreviation:  Information

INFOREQ

Bureau of Personnel Condensation Code:  Information requested as to

INIT CCA

abbreviation:  Initial Cash Clothing Allowance

initial stability

nautical:  The stability of a vessel in the upright position or at small angles of inclination. It is usually represented by the metacentric height.

INM

abbreviation:  Inspector of Naval Machinery

INM

abbreviation:  Inspector of Naval Material

inner bottom

nautical:  A term applied to the inner skin or tank top plating. The plating over the double bottom.

INS

abbreviation:  Inspection Division (USCG)

INS

abbreviation:  Inspector (of)

InsAir

abbreviation:  Inspector Naval Aircraft

INSCRUIT

Bureau of Personnel Condensation Code:  Inspector of Navy Recruiting and Induction, Joint Service Induction Area

InsEng

abbreviation:  Inspector Naval Engineering Material

INSEREC

Bureau of Personnel Condensation Code:  Indicate by appropriate entry pages 9-10 service records, and in orders, rating for which men have been trained, to insure assignment to appropriate duty

INSERECAV

Bureau of Personnel Condensation Code:  Indicate by appropriate entry pages 9-10 service record, and in orders, rating for which non-rated men have been trained, to insure assignment to aviation duty

INSERECSUB

Bureau of Personnel Condensation Code:  Indicate by appropriate entry pages 9-10 service record, and in orders, rating for which men have been trained, to insure assignment to submarine duty

InsGen

abbreviation:  Inspector General (Navy)

InsGenPac

abbreviation:  Inspector General, Pacific Fleet and Pacific Ocean Areas

InshorePat

abbreviation:  Inshore Patrol

InsMach

abbreviation:  Inspector of Naval Machinery

InsMat

abbreviation:  Inspector of Naval Material

InsNavMat

abbreviation:  Inspector of Navigational Material

InsOrd

abbreviation:  Inspector of Ordnance (Naval)

Insp-Instr

abbreviation:  Inspector-Instruction (USMC)

INSP

abbreviation:  Inspection

Insp

abbreviation:  Inspector

INSPAT

abbreviation:  Inshore Patrol

InsPetRes

abbreviation:  Inspector Petroleum Reserves

INST

abbreviation:  Instantaneous

INST

abbreviation:  Instruction (s)

INSTFURASPERS

Bureau of Personnel Condensation Code:  For course of instruction and further assignment by Bureau of Naval Personnel

Instn

abbreviation:  Instruction

Instr

abbreviation:  Instructor

INSUR

abbreviation:  Allotment for commercial life insurance

InSurv

abbreviation:  Board of Inspection and Survey

Int O

abbreviation:  Intelligence Officer (Army)

INT

abbreviation:  Ad Interim Specification (BuShips)

INT

abbreviation:  Intelligence and Law Enforcement Division (USCG)

INT

abbreviation:  Interest

INT

abbreviation:  International

INTCO

abbreviation:  International Code of Signals

INTEL

abbreviation:  Intelligence

IntelCen

abbreviation:  Intelligence Center

IntelCenPac

abbreviation:  Intelligence Center Pacific Ocean Areas

Intell

abbreviation:  Intelligence

intercostal

nautical:  Occurring between ribs, frames, etc., The term is broadly applied, where two members of a ship intersect, to the one that is cut.

INTERM

abbreviation:  Intermediate

IntermTra

abbreviation:  Intermediate Training (Air)

INTERP

Bureau of Personnel Condensation Code:  Interpretation

InterpRon

abbreviation:  Photo Interpretation Squadron

Invader

abbreviation:  See JD-#

INVEST

abbreviation:  Investigation

IO

abbreviation:  Intelligence Officer

IO

abbreviation:  Intercept Officer

IO

abbreviation:  Issuing Office

IOL

abbreviation:  Initial Outfitting List (for Advanced Bases)

IP

abbreviation:  Initial Point (Army)

IPRB

abbreviation:  Inter-Allied Post-War Requirements Bureau

IR

abbreviation:  Infra-Red Equipment

IRAA&A

abbreviation:  Increase and Replacement of Armor, Armament and Ammunition (appropriation title)

IRAC

abbreviation:  Interdepartment Radio Advisory Committee

IRB

abbreviation:  Industrial Readjustment Branch

IRB

abbreviation:  Industrial Relations Board

IRC&M

abbreviation:  Increase and Replacement of Construction and Machinery (appropriation title)

IRC

abbreviation:  Industrial Relations Counselors

IREC

abbreviation:  Increase and Replacement of Emergency Construction (ships) (appropriation title)

IRNV

abbreviation:  Increase and Replacement of Naval Vessels (appropriation title)

IRS

abbreviation:  Induction and Recruiting Station (USMC)

Irving

glossary:  Nakajima J1N fighter.

IS

abbreviation:  Invalided from Service (Medical)

IS

abbreviation:  Island

ISA

abbreviation:  Inductee Special Assignment

ISBIC

abbreviation:  Interservice Balkan Intelligence Committee

ISCB

abbreviation:  Inter-Allied Staff Communications Board

IsCom

abbreviation:  Island Commander

ISD

abbreviation:  Industrial Survey Division; now, OIS

isherwood system

nautical:  A system of building ships which employs close spaced, relatively light, longitudinal main framing supported on widespread transverse members of comparatively great strength instead of transverse main framing.

ISIC

abbreviation:  Immediate Superior-in-Command

ISinC

abbreviation:  Immediate Superior-in-Command

ISIR

abbreviation:  In Service, In Reserve (vessel status)

ISIS

abbreviation:  Inter-Service Information Series (GB)

ISLD

abbreviation:  Inter-Service Liaison Department (GB)

ISN

abbreviation:  Indefinite SecNav Allotments

ISRB

abbreviation:  Inter-Service Research Bureau (GB)

ISTD

abbreviation:  Inter-Service Topographical Department (British Admiralty)

ITANDT

abbreviation:  International Telephone and Telegraph

ITEM

abbreviation:  "I" in the phonetic alphabet

ITM

abbreviation:  Inspector of Torpedoes and Mines

ITO

abbreviation:  Inspecting Torpedo Officer

IV

abbreviation:  Initial Velocity

IV

abbreviation:  Inverted Vertical (aircraft engine)

IVB

abbreviation:  Classified Civil Service Worker

IX

abbreviation:  Miscellaneous Unclassified (for any unclassified ships in the Navy)

IX

glossary:  Unclassified naval vessel. Often a civilian tanker, for transporting gasoline.

J

abbreviation:  Converted to a utility airplane (suffix to plane designation)

J

abbreviation:  First letter in the Navy aircraft designation, indicating a utility plane

J

abbreviation:  North American Aviation Corporation (manufacturer’s symbol)

J2F-3-5

abbreviation:  "Duck"; single-engine Navy utility (VJ), biplane, manufactured by Gruman

J2F-6

abbreviation:  "Duck"; single-engine Navy utility (VJ), biplane, manufactured by Columbia

J4F-#

abbreviation:  "Widgeon"; twin-engine Gruman, Navy utility plane (VJ(M)), manufactured by Gruman

JA-#

abbreviation:  "Norseman"; single-engine Navy utility plane (VJ), manufactured by Noorduyn

JA

abbreviation:  Judge Advocate

JAAF

abbreviation:  Japanese Army Air Force

JACCI

abbreviation:  Joint Allocation Committee Civil Intelligence (US & GB)

jack ladder

nautical:  A ladder with wooden steps and side ropes.

jack rod

nautical:  A term applied to a pipe or rod to which the edges of awnings or weather cloths are secured.

Jackal

abbreviation:  Barrage jammer (radar and radar countermeasure)

jackstaff

nautical:  Flagpole at the bow of a ship.

Jacob’s ladder

nautical:  A ladder having either fiber or wire rope or chain sides with wood or metal rungs attached at regular intervals. One end is usually fitted with sister hooks or shackles for hooking on.

JACSPAC

abbreviation:  Joint Air Communications of the Pacific

JAG

abbreviation:  Judge Advocate General

JAGD

abbreviation:  Judge Advocate General’s Department (Army)

JAN Grid

abbreviation:  Joint Army-Navy Grid

JAN

abbreviation:  Joint Army-Navy

JANCOM

abbreviation:  Joint Army-Navy Communications

JANET

abbreviation:  Joint Army-Navy Experimental and Testing Board

JANIC

abbreviation:  Joint Army-Navy Information Center

JANIS

abbreviation:  Joint Army-Navy Intelligence Studies

JANP

abbreviation:  Joint Army-Navy Publication

JANWSA

abbreviation:  Joint Army-Navy-War Shipping Administration

JAP

abbreviation:  Japanese

JAPA

abbreviation:  Japan Area

JASASA

abbreviation:  Joint Air-Surface Anti-Submarine Action

JASCO

Bureau of Personnel Condensation Code:  Joint Assault Signal Company

JATO

abbreviation:  Jet Assisted Take-Off

JB-2

abbreviation:  American version of German V-1 flying bomb

JB-2

abbreviation:  Twin-engine Navy, special plane

JB

abbreviation:  Joint Army-Navy Board

JCA

abbreviation:  Joint Communications Activity

JCAC

abbreviation:  Joint Civil Affairs Committee

JCB

abbreviation:  Joint Communications Board

JCC

abbreviation:  Joint Communications Center

JCS

abbreviation:  Joint Chiefs of Staff (US-GB)

JD

abbreviation:  "Invader"; twin-engine Navy utility plane (VJ(M)), manufactured by Douglas

Jd

abbreviation:  Joined (USMC)

JDCS

abbreviation:  Joint Deputy Chiefs of Staff

Jdenl

abbreviation:  Joined by enlistment (USMC)

Jdfr

abbreviation:  Joined from (USMC)

Jdind

abbreviation:  Joined by induction (USMC)

JDPC

abbreviation:  Joint Defense Production Committee (later changed to Joint War Production Committee)

Jdreenl

abbreviation:  Joined by reenlistment (USMC)

Jds/RS

abbreviation:  Joined by Staff Returns (USMC)

JEEP

abbreviation:  Small open Army motor car

JEIA

abbreviation:  Joint Electronics Information Agency

JIC

abbreviation:  Joint Intelligence Center

JIC

abbreviation:  Joint Intelligence Committee

JICA

abbreviation:  Joint Intelligence Center, Africa

JICA

abbreviation:  Joint Intelligence Collecting Agency (USMC)

JICACBI

abbreviation:  Joint Intelligence Collecting Agency, China, Burma, India

JICAME

abbreviation:  Joint Intelligence Collecting Agency, Middle East

JICANA

abbreviation:  Joint Intelligence Collecting Agency, North Africa

JICARC

abbreviation:  Joint Intelligence Collecting Agency, Reception Committee (Navy Department)

JICPOA

Bureau of Personnel Condensation Code:  Joint Intelligence Center, Pacific Ocean Areas

Jig

abbreviation:  "J" in the phonetic alphabet

Jill

glossary:  Single engine Nakajima B6N torpedo-bomber.

JIS

abbreviation:  Joint Intelligence Staff

JISPB

abbreviation:  Joint Intelligence Studies Publishing Board

JLC

abbreviation:  Joint Logistics Committee

JLPC

abbreviation:  Joint Logistics Plans Committee

JM-#

abbreviation:  "Marauder"; twin-engine Navy utility plane (VJ(M)), manufactured by Martin

JMAC

abbreviation:  Joint Munitions Allocation Committee

JMC

abbreviation:  Joint Meteorological Committee

JMTC

abbreviation:  Joint Military Transportation Committee

JMVB

abbreviation:  Joint Merchant Vessels Board

JNW

abbreviation:  Joint Committee on New Weapons and Equipment

JOC Squadron

abbreviation:  Observation plane squadron (obsolete)

JOC

abbreviation:  Joint Operations Center

Jog.

blueprints:  Joggle.

joggled

nautical:  A term applied where a plate or bar is offset in the way of a lapped joint. The object of the joggle is to permit a close fit of the attached member without the use of liners under alternate strakes of plating.

joint, butt

nautical:  A term applied where a connection between two pieces of material is made by brining their ends or edges together (no overlap) and by welding alone, or by welding, riveting, or bolting each to a strip of strap that overlaps both pieces.

joint, lapped

nautical:  A term applied where a connection between two pieces of material is made by overlapping the end or edge of one over the end or edge of the other and by fastening the same by bolts, rivets, or welding.

JOSCO

abbreviation:  Joint Overseas Shipping Control Office

journal

nautical:  That portion of a shaft or other revolving member which transmits weight directly to and is in immediate contact with the bearing in which it turns.

JP

abbreviation:  Type of sonar

JPB

abbreviation:  Joint Planning Board

JPB

abbreviation:  Joint Purchasing Board

JPC

abbreviation:  Joint Planning Committee

JPPL

abbreviation:  Joint Personnel Priority List

JPS

abbreviation:  Joint Planing Staff (US & GB)

JPSC

abbreviation:  Joint Production Survey Committee

JPWC

abbreviation:  Joint Post-War Committee

JR

abbreviation:  First two letters in the Navy aircraft designation, indicating a utility-transport plane

JRB-1-4

abbreviation:  "Expeditor"; twin-engine Navy utility plane (VJ(M)), manufactured by Beech

JRB-2-3-4

abbreviation:  "Voyager"; twin-engine Navy utility plane (VJ(M)), manufactured by Beech

JRC-#

abbreviation:  "Bobcat"; twin-engine Navy utility (VJ(M)), manufactured by Cessna

JRF-#

abbreviation:  "Goose"; twin-engine Navy utility (VJ(M)), manufactured by Gruman

JRM-#

abbreviation:  "Mars"; four-engine Navy transport (VR(HS)), seaplane, manufactured by Martin

JRPM

abbreviation:  Joint Registered Publications Memorandum

JRS-#

abbreviation:  "Excalibur"; four-engine Navy transport (VR(HS)), manufactured by Sikorsky

JSC

abbreviation:  Joint Security Control

JSC

abbreviation:  Joint Strategic Committee

JSIA

abbreviation:  Joint Service Induction Area

JSM

abbreviation:  Joint Staff Mission (GB)

JSOC

abbreviation:  Joint Ship Operations Committee

JSP

abbreviation:  Joint Staff Planners (Joint Chiefs of Staff)

JSRC

abbreviation:  Joint Ship Repair Committee

JSSC

abbreviation:  Joint Strategic Survey Committee

JT

abbreviation:  Rio de Janeiro to Trinidad (routing designation)

JT

abbreviation:  Type of sonar

JTF

abbreviation:  Joint Task Force

JTR

abbreviation:  Joint Termination Regulation

Judy

glossary:  Single engine Yokosuka D4Y dive-bomber.

jury

nautical:  A term applied to temporary structures, such as masts, rudders, etc. used in an emergency.

JUSSC

abbreviation:  Joint U.S. Strategic Committee

JWPC

abbreviation:  Joint War Plans Committee

JWPC

abbreviation:  Joint War Production Committee

K-Day

abbreviation:  Day set for strike or assault by a carrier’s aircraft; corresponds to land forces’ designation of D-Day with which it may or may not coincide

K-guns

glossary:  See "depth charges."

K. P.

blueprints:  King Post.

K.

blueprints:  Keel.

K

abbreviation:  Communications Division aboard a carrier

K

abbreviation:  Fairchild Aviation Corporation (manufacturer’s symbol)

K

abbreviation:  Kaiser Cargo, Inc. (Fleetwings Division) (manufacturer’s symbol)

K

abbreviation:  Kinner Airplane and Motor Corporation (manufacturer’s symbol)

K

abbreviation:  Modified for use as target aircraft (suffix to plane designation)

K

abbreviation:  Nash-Kelvinator Company (manufacturer’s symbol)

K

abbreviation:  Pilotless Aircraft

KA

abbreviation:  Contraction of AKA (attack cargo ship)

KA

abbreviation:  Pilotless aircraft for attack on aircraft

KANS

abbreviation:  Kansas

Kansan

abbreviation:  See SNB-1

Kate

glossary:  Nakajima B5N torpedo-bomber.

Kaydet

abbreviation:  See N2S

KBO

abbreviation:  Kite and Balloon Officer

KC

abbreviation:  Kilocycle(s)

KD

abbreviation:  Pilotless aircraft for use as target aircraft

KDD-#

abbreviation:  Navy pilotless aircraft, target, manufactured by McDonnell

keel, bilge

nautical:  A fin fitted on the bottom of a ship at the turn of the bilge to reduce rolling. It commonly consists of a plate running fore and aft and attached to the shell plating by angle bars. It materially helps in steadying a ship and does not add much to the resistance to propulsion when properly located.

keel, blocks

nautical:  Heavy timber blocks piled one above the other on which the keel of a vessel is supported when being built, or when she is in a dry dock. They are placed under the keel from bow to stern and a sufficient distance apart to allow working between them.

keel, docking

nautical:  In dry docking, the weight of a ship is carried almost entirely on the keel and bilge blocks. The keel and keelson provide the means of distributing the pressure on the center line, and docking keels composed of doubling strips of plate or a heavier plate or built-up girders are sometimes fitted on the bottom at a distance from the center line corresponding to the best position for the bilge block. The docking keels are fitted in the fore and aft direction, generally parallel or nearly so to the keel.

keel

nautical:  A center-line strength member running fore and aft along the bottom of a ship and often referred to as the backbone. It is composed either of long bars or timbers scarfed at their ends or by flat plates connected together by riveting or welding.

keelson, vertical center

nautical:  The lower middle-line girder which, in conjunction with a flat plate keel on the bottom and a rider plate on top, forms the principal fore-and-aft strength member in the bottom of a ship. In addition to its importance as a "backbone" or longitudinal strength member, it serves to distribute and equalize the pressure on the transverse frames and bottom of the ship when grounding or docking occurs. In steel ships this keelson usually consists of a vertical plate with two angles running along the top and two along the bottom. The girder, however, may be made up of various combinations of plates and shapes. This member should continue as far forward and aft as possible. Usually called the Vertical Keel.

Keep her so

orders:  Given when the steersman reports her heading and it is desired to steady her.

Keep Silence About the Decks During Divine Service; Knock Off All Games and Radio, the Smoking Lamp is Out Throughout the Ship

orders:  After church call sounds the directions given will be carried out. This word is generally passed simultaneously with church call.

KEN

abbreviation:  Kentucky

kentledge

nautical:  Pig iron used either as temporary or permanent ballast or as a weight for inclining a vessel.

kerf

nautical:  The slit made by the cut of a saw. Also the channel burned out by a cutting torch.

KG

abbreviation:  Key West to Guantanamo (routing designation)

KG

abbreviation:  Pilotless aircraft for attack on ground targets

KGW-#

abbreviation:  Navy pilotless aircraft for attack on ground targets, manufactured by Willys-Overland

KH

abbreviation:  Key West to Galveston (routing designation)

Ki

abbreviation:  Kilocycle(s)

KIA

abbreviation:  Killed In Action

king post

nautical:  A strong vertical post used to support a derrick boom. See Samson Post.

King

abbreviation:  "K" in the phonetic alphabet

Kingfisher

abbreviation:  See OS2N-#, OS2U-#

Kites

abbreviation:  Radar countermeasures; previously called Angels

KJ

abbreviation:  Pilotless aircraft for utility purposes

KM

abbreviation:  United Kingdom to Mediterranean (routing designation)

Kn(s)

abbreviation:  Knot(s)

KN

abbreviation:  Key West to New York of Key West to Norfolk (routing designation)

KNA

abbreviation:  Killed; not enemy action

knee

nautical:  A block of wood having a natural angular shape or one cut to a bracket shape and used to fasten and strengthen the corners of deck openings and the intersections of timbers, and to connect deck beams to the frames of wood vessels. The term is also applied to the ends of steel deck beams that are split, having one leg turned down and a piece of plate fitted between the split portion, thus forming a bracket or knee.

Knock off bright work

orders:  Stop shining brass work, and stow gear used for cleaning.

Knock off scrubbing clothes

orders:  Cease scrubbing clothes.

knot

glossary:  One nautical mile per hour. 1 knot = 1.152 mph = 1.85 km/h.

knot

nautical:  A unit of speed, equalling one nautical mile (6,080.20 feet) an hour, as when a ship goes ten nautical miles per hour, her speed is ten knots.

knuckle

nautical:  An abrupt change in direction of the plating, frames, keel, deck, or other structure of a vessel.

KO

abbreviation:  Kodiak, Alaska

KPO

abbreviation:  Keypunch Operator

KS

abbreviation:  Norfolk to Key West (routing designation)

KS

abbreviation:  Pilotless aircraft for attack on ship targets

KT

abbreviation:  Knots

KV(s)

abbreviation:  Kilovolt(s)

KW(s)

abbreviation:  kilowatt(s)

KW

abbreviation:  Key West, Florida

KY

abbreviation:  Kentucky

L-V(S)

abbreviation:  USNR designation for commissioned legal officers qualified for specialist duties. This classification was abolished in September 1944 and replaced by S(L).

L. B. P.

blueprints:  Length Between Perpendiculars.

L. Dk.

blueprints:  Lower Deck.

L. L. L.

blueprints:  Light Load Line.

L. O. A.

blueprints:  Length Over All.

L. W. L.

blueprints:  Load Water Line.

L.

blueprints:  Line.

L/B

abbreviation:  Light Bomber

L/T

abbreviation:  Line Telecommunications

L

abbreviation:  Bell Aircraft Corporation (manufacturer’s symbol)

L

abbreviation:  Columbia Aircraft Corporation (manufacturer’s symbol)

L

abbreviation:  Equipped with search light (suffix to plane designation)

L

abbreviation:  First letter in the Navy aircraft designation, indicating a glider

L

abbreviation:  First letter of plane model designation signifying glider

L

abbreviation:  Landplane

L

abbreviation:  Langley Aviation Corporation (manufacturer’s symbol)

L

abbreviation:  legal Division (USCG)

L

abbreviation:  Lewisite

L

abbreviation:  Single Bank Vertical (aircraft engine)

L

abbreviation:  Suffix to USNR line officer classification symbol denoting Limited General Service; As, (A)L is Limited General Service, Aviation Non-flying

LA

abbreviation:  Lighter than Air

LA

abbreviation:  Louisiana

Lab

abbreviation:  Laboratory

LAC

abbreviation:  Liberated Areas Committee

Ladder in [ ] yard steps

orders:  A command from controlling spotter, to control party, to run a continuous in ladder.

Ladder out [ ] yard steps

orders:  A command from controlling spotter, to control party, to run a continuous out ladder.

ladder, accommodation

nautical:  A staircase suspended over the side of a vessel from a gangway to a point near the water to provide easy access to the deck from a small boat alongside.

ladder, companion

nautical:  A staircase fitted as a means of access from a deck to the quarters.

ladder, sea

nautical:  Rungs secured to the side of a vessel to form a ladder from the weather deck to the water.

ladder

nautical:  A framework consisting of two parallel sides, connected by bars or steps which are spaced at intervals suitable for ascending or descending. On shipboard the term ladder is also applied to staircases and to other contrivances used in ascending or descending to or from a higher or lower level.

lagging

nautical:  A term applied to the insulating material that is fitted on the outside of boilers, piping, etc.

LAIS

abbreviation:  Liaison

LAN

abbreviation:  Landing

LANCRA

abbreviation:  Landing Craft

LANCRAB

abbreviation:  Landing Craft and Bases

LanCraBNAW

abbreviation:  Northwest African Waters

landing, landing edge

nautical:  That portion of the edge or end of a plate over which another plate laps. The covered-up edge.

LanForASCU

abbreviation:  Landing Force Air Support Control Unit

LANT

abbreviation:  Atlantic

LantFlt

abbreviation:  Atlantic Fleet

LantResFlt

abbreviation:  Atlantic Reserve Fleet

lanyard

nautical:  The present use of this term is generally limited to a piece of rope or line having one end free and the other attached to any object for the purpose of either near or remote control.

lap

nautical:  A term applied to the distance that one piece of material is laid over another; the amount of overlap, as in a lapped joint.

lapstrake

nautical:  A term applied to boats built on the clinker system in which the strakes overlap each other. The top strake always laps on the outside of the strake beneath.

LASPENSA

abbreviation:  Naval Air Station Pensacola

LAT

abbreviation:  Latitude

launch

nautical:  A term applied to a small power or motor boat. See launching.

launching

nautical:  A term applied to the operation of transferring a vessel from the building ways into the water. End launching and side launching methods are employed; the former method is used when the vessel is built at an angle, usually at right angles, to the waterfront and the vessel is launched stern first, while in side launching the vessel is built parallel to the waterfront and launched sidewise. In preparing for an end launching, usually groundways, made of heavy timbers are laid with an inclination of about ½" and ⁵/₈" to the foot parallel to the center line of the ship one on either side of the keel, and spaced about one-third of the beam of the vessel apart. These groundways run the length of the vessel and for some distance out under the water. On top of the groundways are placed the sliding ways, also heavy timbers, and between these two ways is placed a coating of launching grease. The sliding ways are prevented from sliding on the greased groundways by a trigger or similar device and dog or dagger shores. Cradles are built up to fit the form of the vessel, and between the sliding ways and the cradle, wedges are driven and the weight of the ship thus transferred from the building blocks to the sliding ways. After the building blocks and shores are removed, the trigger is released and gravity causes the vessel to slide down the inclined ways. In some cases hydraulic jacks are set at the upper end of the groundways to exert pressure on the sliding ways to assist in overcoming initial friction along the ways. A similar procedure is followed in the case of side launchings, except that more than two groundways are usually used, depending on the length of the ship, and the inclination of the ways is steeper.

LAW

abbreviation:  Local Air Warning

Lay Aft All the Eight O’Clock Reports or Make All the Eight O’Clock Reports

orders:  Heads of the departments report to the Executive Officer that the ship is secured.

Lay aft the anchor watch to muster

orders:  Anchor watch men serve as messengers for the Officer of the Deck. They muster at 2000 and set the first watch at 2100 when the ship is at anchor.

Lay aft to the fantail all mess cooks

orders:  Muster aft as directed.

Lay below all cooks and messmen

orders:  All men go to their assigned messes, or draw gear for their assigned messes.

Lay for starshell spread to starboard (port)

orders:  A command from Control to guns when a starshell spread is to be fired. Load guns with starshells, elevate, and offset train dials in accordance with doctrine.

Lay forward (or aft) all the sideboys

orders:  Two to eight sideboys report as directed. Sideboys are detailed from all divisions to tend the ship’s side.

Lay in oars

orders:  An order to a pulling boat’s crew to stop pulling and to hold their oars with the blades horizontal and the oars at right angles to the keel of the boat.

Lay mechanically in elevation

orders:  The gun pointers use their handwheels to lay the gun at a certain elevation ordered by telephone or visual battle order.

Lay up all running gear

orders:  Move all lines, blocks, hatch gratings, and other movable gear to keep it dry.

laying off

nautical:  A term applied to the work done by a loftsman in laying off the ship’s lines to full size in the mold loft and making templates therefrom. Also known as laying down.

laying out

nautical:  Placing the necessary instructions on plates and shapes for shearing, planing, punching, bending, flanging, beveling, rolling, etc., from templates made in the mold loft or taken from the ship.

LB

abbreviation:  Landing Barge(s)

LB

abbreviation:  Photographic Laboratory Specialist(s)

LB

abbreviation:  Pound

LBD

abbreviation:  Twin-engine McDonnell, Navy special plane

LBE

abbreviation:  Landing Barge, Emergency Repair

LBE

abbreviation:  Landing Barge, Oiler

LBE

abbreviation:  Navy transport glider (VLR) known as "Glomb"; manufactured by Gould

LBK

abbreviation:  Landing Barge, Kitchen

LBP-1

abbreviation:  Twin-engine Piper, Navy glider

LBS

abbreviation:  Landing Barge, Support

LBT

abbreviation:  Chemical Laboratory Technician

LBT

abbreviation:  Clinical Laboratory Technology

LBT

abbreviation:  Navy transport glider (VLR), known as "Glomb"; manufactured by Taylorcraft

LBV

abbreviation:  Landing Barge, Vehicle

LC or L/C

abbreviation:  Landing Craft

LC(FF)

abbreviation:  Landing Craft, Flotilla Flagship

LC

abbreviation:  Lines of Communications (Army)

LCA

abbreviation:  Landing Craft, Assault

LCC (1)

abbreviation:  Landing Craft, Control (Mark I)

LCC (2)

abbreviation:  Landing Craft, Control (Mark II)

LCC

abbreviation:  Landing Craft, Control

LCC

abbreviation:  London Communications Committee

LCDR

abbreviation:  Lieutenant Commander

LCE

abbreviation:  Landing Craft, Emergency Repair

LCEOP

abbreviation:  Landing Craft, Engine Overhaul Parties

LCF

abbreviation:  Landing Craft, Flak

LCFlotsPac

abbreviation:  Landing Craft, Flotilla, Pacific Fleet

LCG(L)

abbreviation:  Landing Craft, Gun, (Large)

LCGM

abbreviation:  Landing Craft, Gunboat

LCGP

abbreviation:  Landing Craft, Group

LCI(G)

abbreviation:  Landing Craft, Infantry Gunboat

LCI(L)

abbreviation:  Landing Craft, Infantry, Large

LCI(M)

abbreviation:  Landing Craft, Infantry (Mortar Ship)

LCI(R)

abbreviation:  Landing Craft, Infantry (Rocket Ship)

LCI

abbreviation:  Landing Craft, Infantry

LCIDiv

abbreviation:  LCI Division

LCIFlot

abbreviation:  LCI Flotilla

LCIGrp

abbreviation:  LCI Group

LCILFlot

abbreviation:  LCI(L) Flotilla

LCM(1)

abbreviation:  Landing Craft, Mechanized, Mark I

LCM(2)

abbreviation:  Landing Craft, Mechanized, Mark II

LCM(3)

abbreviation:  Landing Craft, Mechanized, Mark III

LCM(6)

abbreviation:  Landing Craft, Mechanized, Mark VI

LCM

abbreviation:  Landing Craft, Mechanized

LCMSO

abbreviation:  Landing Craft Material Supply Officer

LCN

abbreviation:  Landing Craft, Navigation

LCNT

abbreviation:  Link Celestial Navigation Trainer

LCOCU

abbreviation:  Landing Craft, Obstruction Clearance Unit

LCP(L)

abbreviation:  Landing Craft, Personnel (Large)

LCP(M)

abbreviation:  Landing Craft, Personnel (Medium)

LCP(N)

abbreviation:  Landing Craft, Personnel (Nested)

LCP(P)

abbreviation:  Landing Craft, Personnel (Plastic)

LCP(R)

abbreviation:  Landing Craft, Personnel (Ramp)

LCP(Sy)

abbreviation:  Landing Craft, Personnel(Survey)

LCP

abbreviation:  Landing Craft, Personnel

LCR(L)

abbreviation:  Landing Craft, Rubber (Large)

LCR(R)

abbreviation:  Landing Craft, Rubber (Rocket)

LCR(S)

abbreviation:  Landing Craft, Rubber (Small)

LCRU

abbreviation:  Landing Craft, Recovery Unit

LCS(L)(3)

abbreviation:  Landing Craft, Support (Large) (Mark III)

LCS(M)

abbreviation:  Landing Craft, Support (Medium)

LCS(R)

abbreviation:  Landing Craft, Support (Rocket)

LCS(S)(1)

abbreviation:  Landing Craft, Support (Small) (Mark I)

LCS(S)(2)

abbreviation:  Landing Craft, Support (Small) (Mark II)

LCS(S)

abbreviation:  Landing Craft, Support (Small)

LCT(5)

abbreviation:  Landing Craft, Tank (Mark V)

LCT(6)

abbreviation:  Landing Craft, Tank (Mark VI)

LCT(A)

abbreviation:  Landing Craft, Tank (Armored)

LCT(A)

abbreviation:  Landing Vehicle, Tracked (Armored) (Turret Type)

LCT

abbreviation:  Landing Craft, Tank

LCV

abbreviation:  Landing Craft, Vehicle

LCVP

abbreviation:  Landing Craft, Vehicle and Personnel

LD

abbreviation:  Line of Departure (Army)

LD

abbreviation:  Line of Duty (Army)

LDD

abbreviation:  Letter of Determination of Dependency

LDF

abbreviation:  Local Defense Forces

Ldg.

blueprints:  Landing.

LE

abbreviation:  Low Explosive (Army)

LEA/BZ

abbreviation:  Vessel leased to Brazil

LEA/CH

abbreviation:  Vessel leased to China

LEA/EC

abbreviation:  Vessel leased to Ecuador

LEA/FR

abbreviation:  Vessel leased to France

LEA/GR

abbreviation:  Vessel leased to Greece

LEA/MX

abbreviation:  Vessel leased to Mexico

LEA/NE

abbreviation:  Vessel leased to Netherlands

LEA/NO

abbreviation:  Vessel leased to Norway

LEA/PA

abbreviation:  Vessel leased to Panama

LEA/PE

abbreviation:  Vessel leased to Peru

LEA/PG

abbreviation:  Vessel leased to Paraguay

LEA/RU

abbreviation:  Vessel leased to Russia

LEA/UK

abbreviation:  Vessel leased to United Kingdom

LEA/UR

abbreviation:  Vessel leased to Uruguay

Lead out wash deck hose

orders:  Connect deck hose to fire-main.

leading edge

nautical:  That edge of a propeller blade which cuts the water when the screw is revolving in the ahead direction. That edge of a rudder, diving plane, or strut arm which faces toward the bow of the ship.

LEAVE RATS

abbreviation:  Leave Rations

length between perpendiculars

nautical:  The length of a ship measured from the forward side of the stem to the aft side of the stern post at the height of the designed water line. In naval practice, the total length on the designed water line.

length over all

nautical:  The length of a ship measured from the foremost point of the stem to the aftermost part of the stern.

Let fall

orders:  An order to let the oars fall from the position of toss into the rowlocks.

Let go the painter

orders:  Order to the man in the bow handling the painter, to let go bow line.

Let go

orders:  Let the anchor drop. (Knock the stopper clear of the chain).

LF

abbreviation:  Fighter aircraft fitted with engine rated for low altitude performance

LF

abbreviation:  Low Frequency

LFM

abbreviation:  Landing Force Manual

Lg Comb

abbreviation:  Large Combatant

LG

abbreviation:  Landing Ground

Liberator

abbreviation:  See PB4Y-1, 1P-12RY-1-2-3

Liberty Ship

glossary:  These merchant marine ships, designated with "SS" instead of "USS", often carried ammunition and other supplies to forward areas.

Lieutenant (junior grade)

glossary:  The commissioned navy rank above ensign and below lieutenant; designated O-2. Abbreviated LTJG. Also known as Lieutenant(j.g.).

Lieutenant Commander

glossary:  The commissioned navy rank above lieutenant and below commander; designated O-4. Abbreviated LtComm, LtComdr, LCDR or LTCDR.

Lieutenant

glossary:  The commissioned navy rank above Lieutenant (j.g.) and below lieutenant commander; designated O-3. Abbreviated LT.

Lifesta

abbreviation:  Lifeboat Station (USCG)

lift a template

nautical:  To construct a template to the same size and shape as the part of the ship involved, from either the mold loft lines or from the ship itself, from which laying out of material for fabrication may be performed.

lifting

nautical:  Transferring marks and measurements from a drawing, model, etc., to a plate or other object, by templates or other means.

light, port

nautical:  An opening in a ship’s side, provided with a glazed lid or cover.

lightening hole

nautical:  A hole cut out of any structural member, as in the web, where very little loss of strength will occur. These holes reduce the weight and in many cases serve as access holes. This condition is particularly true in floor plates and longitudinals in double bottoms.

lighter

nautical:  A full-bodied, heavily-built craft, usually not self-propelled, used in bringing merchandise or cargo alongside or in transferring same from a vessel.

Lily

glossary:  Kawasaki Ki-48-II bomber.

limber chains

nautical:  Chains passing through the limber holes of a vessel, by which they may be cleaned of dirt.

limber hole

nautical:  A hole or slot in a frame or plate for the purpose of preventing water from collecting. Most frequently found in floor plates just above the frames and near the center line of the ship.

LINE

abbreviation:  Line Officer, USN

line

nautical:  A general term for a rope of any size used for various purposes: small cords such as long line, lead line, or small stuff as marlin, ratline, houseline, etc.

liner

nautical:  A piece of metal used for the purpose of filling up a space between a bar and a plate or between two plates; a filler.

lines

nautical:  The plans of a ship that show its form. From the lines drawn full size on the mold loft floor are made templates for the various parts of the hull.

Lion

abbreviation:  A large advanced base unit consisting of all the personnel and material necessary for the establishment of a major, all-purpose naval base. It is made up of a large number of functional components which enables the base to perform voyage repairs and repair minor battle damage to a major portion of a fleet.

list

nautical:  The deviation of a vessel from the upright position due to bilging, shifting of cargo, or other cause.

Lkr.

blueprints:  Locker.

LLI

abbreviation:  Latitude and Longitude Indicator

LLLO

abbreviation:  Lend-Lease Liaison Office

LM

abbreviation:  Land Mine

LM

abbreviation:  Legion of Merit

LMG

abbreviation:  Light Machine Gun (Army)

LNC

abbreviation:  Local Naval Commander

LNE-#

abbreviation:  Navy training glider (VLN), manufactured by Gould

LNS-#

abbreviation:  Navy training glider (VLN), manufactured by Schwiezer

LNT-#

abbreviation:  Navy training glider (VLN), manufactured by Taylorcraft

LO

abbreviation:  Liaison Office(r)

LO

abbreviation:  Local

load line

nautical:  The line on the "lines plan" of a ship representing the intersection of the ship’s form with the plane of the water’s surface when the vessel is floating with her designed load on board. Also applied to the actual intersection of the surface of the water with a vessel’s side.

Load

orders:  To load the gun. If this command is omitted the gun is loaded at the command "Commence Firing."

LOAN/A

abbreviation:  Vessels loaned to Army

LOAN/C

abbreviation:  Vessels loaned to Coast Guard

LOAN/M

abbreviation:  Vessels loaned to miscellaneous activities (U.S. Maritime Academy, etc.)

LOAN/S

abbreviation:  Vessels loaned to States

LOAN/W

abbreviation:  Vessels loaned to War Shipping Administration

Local control

orders:  All guns follow the target with their telescope or open sights and fire locally. Values of range, deflection, and fuze settings are determined at the guns.

LOCAL

abbreviation:  Permanent local fleet

lock nut

nautical:  A thin nut which is turned down over the regular nut on a bolt to lock the regular nut against turning off. Also applied to a thin nut placed on a pipe to hold packing at a joint or used on both sides of a bulkhead through which a pipe passes to secure tightness.

locker

nautical:  A storage compartment on a ship.

LODC

abbreviation:  Local Defense District Craft

Lodestar

abbreviation:  See R50-#

LODIG

abbreviation:  Loading

LODOR

abbreviation:  Loaded, Waiting Orders or Assignment

LofC

abbreviation:  Lines of Communications

loftsman

nautical:  A man who lays off the ship’s lines to full size in the mold loft and makes templates therefrom.

Long’l.

blueprints:  Longitudinal.

LONG

abbreviation:  Longevity

LONG

abbreviation:  Longitude

longitudinals

nautical:  A term applied to the fore-and-aft girders in the bottom of a ship. These girders are usually made up from plates and shapes and are sometimes intercostal and sometimes continuous.

LOP

abbreviation:  Local Operational Plot

LOPU

abbreviation:  Logistics Organization Planning Unit

LORAN

abbreviation:  Long-Range Radio Aid to Navigation

LOST/A

abbreviation:  Vessels lost by accident, collision or similar methods

LOST/E

abbreviation:  Vessels lost through enemy action

LOST/P

abbreviation:  Vessels lost due to weather, perils of the sea or similar reasons

LOTON

abbreviation:  Long tons discharged or loaded

LOTS

abbreviation:  LORAN Operational Training School (Pearl Harbor)

LOU

abbreviation:  Louisiana

louver

nautical:  A small opening to permit the passage of air for the purpose of ventilation, which may be partially or completely closed by the operation of overlapping shutters.

Love

abbreviation:  "L" in the phonetic alphabet

Lower away together

orders:  Lower both falls or lines on the boat together.

Lower forward (aft)

orders:  Lower the fall or line which is forward or aft.

LP

abbreviation:  Landplane

LP

abbreviation:  Loss pay/loss of pay

LP

abbreviation:  Low Pressure

LPC

abbreviation:  Low Pressure Chamber Technician

LR

abbreviation:  Long Range Plane(s)

LRNA

abbreviation:  Laws Relating to the Navy Annotated

LRW-#

abbreviation:  Navy transport glider (VLR), manufactured by WACO

LSB

abbreviation:  Landing Ship, Bombardment

LSD

abbreviation:  Landing Ship, Dock

LSH(L)

abbreviation:  Landing Ship, Headquarters (Large)

LSH(S)

abbreviation:  Landing Ship, Headquarters (Small)

LSM(R)

abbreviation:  Landing Ship, Medium (Rocket)

LSM

abbreviation:  Landing Ship, Medium

LSMSO

abbreviation:  Landing Ship Material Supply Officer

LSO

abbreviation:  Landing Signal Officer

LST(H)

abbreviation:  Landing Ship, Tank (Casualty Evacuation)

LST

abbreviation:  Landing Ship, Tank

LSV

abbreviation:  Landing Ship, Vehicle

LSX

abbreviation:  Landing Ship Planned

Lt (jg)

abbreviation:  Lieutenant (Junior Grade)

LT or Lt

abbreviation:  Lieutenant

LT

abbreviation:  Large Tug (Army)

LT

abbreviation:  Link Trainer Instructor

LTA

abbreviation:  Lighter Than Air

LtCol

abbreviation:  Lieutenant Colonel

LtCom

abbreviation:  Lieutenant Commander

LtComdr

abbreviation:  Lieutenant Commander

LTD

abbreviation:  Limited

LtGen

abbreviation:  Lieutenant General

Ltr

abbreviation:  Letter

Ltr

abbreviation:  Lighter than air

LTS

abbreviation:  Landfall Technique School, New York

Lv

abbreviation:  Leave

LV

abbreviation:  Light Vessel

LVD

abbreviation:  Absent on leave from ship’s company duty

LVN

abbreviation:  Absent on leave not from ship’s company

LVT(1)

abbreviation:  Landing Vehicle, Tracked, Unarmored (Mark I) ("Alligator")

LVT(2)

abbreviation:  Landing Vehicle, Tracked, Unarmored (Mark II) ("Water Buffalo")

LVT(3)

abbreviation:  Landing Vehicle, Tracked, Unarmored (Mark III)

LVT(4)

abbreviation:  Landing Vehicle, Tracked, Unarmored (Mark IV)

LVT(A)(1)

abbreviation:  Landing Vehicle, Tracked (Armored) (Mark I) ("Water Buffalo," Turret Type)

LVT(A)(2)

abbreviation:  Landing Vehicle, Tracked (Armored) (Mark II) ("Water Buffalo," Canopy Type)

LVT(A)(4)

abbreviation:  Landing Vehicle, Tracked (Armored) (Mark IV)

LVT(A)(5)

abbreviation:  Landing Vehicle, Tracked (Armored) (Mark V)

LVT

abbreviation:  Landing Vehicle, Tracked

LW

abbreviation:  U.S. East Coast to Southwest Pacific (routing designation)

LWT

abbreviation:  Light Weight Type (anchor gear)

M. Dk.

blueprints:  Main Deck.

M. L.

blueprints:  Molded Line.

M. P.

blueprints:  Mooring Pipe.

M/B

abbreviation:  Medium Bomber

M/L

abbreviation:  Minelayer (GB)

M/R

abbreviation:  Morning Report (Army)

M/S

abbreviation:  Minesweeper (GB)

M/T

abbreviation:  Measurement Tons

M/V

abbreviation:  Merchant Vessel

M&S

abbreviation:  Bureau of Medicine & Survey

M

abbreviation:  General Motors Corporation (Eastern Aircraft Division) (manufacturer’s symbol)

M

abbreviation:  Glenn L. Martin Co. (manufacturer’s symbol)

M

abbreviation:  Marine Corps; used as prefix with plane designation

M

abbreviation:  Medium or 2-engine plane

M

abbreviation:  Merchant Marine Reserve

M

abbreviation:  Metalsmith

M

abbreviation:  Model

M

abbreviation:  Monoplane

M

abbreviation:  Office of merchant Marine Safety (USCG)

M1

abbreviation:  Merchant Marine Reserve Seagoing

M2

abbreviation:  Merchant Marine Reserve Coastal Defense

MA/SB

abbreviation:  Motor Anti-Submarine Boat

MA

abbreviation:  Manila, P.I.

MA

abbreviation:  Mediterranean Area

MA

abbreviation:  Military Attach

MAA

abbreviation:  Master-At-Arms

MAAF

abbreviation:  Mediterranean Allied Air Force

MAATC

abbreviation:  Mobile Anti-Aircraft Training Center

MAB

abbreviation:  Marine Air Base

MAB

abbreviation:  Munitions Assignment Board

MABDG

abbreviation:  Marine Aircraft Base Defense Group

MABDW

abbreviation:  Marine Air Base Defense Wing

MABO

abbreviation:  Marianas-Bonins Group

MABS

abbreviation:  Marine Air Base Squadron

MAC(Air)

abbreviation:  Munitions Assignment Committee (Air) (Washington)

MAC

abbreviation:  Marine Amphibious Corps

MACAF

abbreviation:  Mediterranean Allied Coastal Air Forces

MACH

abbreviation:  Machinery

MACH

abbreviation:  Machinist

MachGr

abbreviation:  Machine Group

Machinery spaces

engineering:  A collective term designating all the major compartments in which machinery under the cognizance of the Bureau of Ships is located.

MACRI

abbreviation:  Mercantile Atlantic Coastal Routing Instructions

MACTU

abbreviation:  Mine and Countermeasures Technical Unit

MAD

abbreviation:  Magnetic Airborne Detector

MAD

abbreviation:  Marine Aviation Detachment

MAD

abbreviation:  Mine Assembly Depot

MADepSq

abbreviation:  Marine Air Depot Squadron

MADP

abbreviation:  Main Air Display Plot

Mae West

glossary:  Nickname given some life preservers. Some sailors had life vests and others had belts. Some of these flotation devices were to be inflated by a CO₂ cartridge.

MAEE

abbreviation:  Marine Aircraft Experimental Establishment

MAF or MAFac

abbreviation:  Marine Air Facility

MAFOG

abbreviation:  Mediterranean Area Fighter Operations Grid

MAG

abbreviation:  Magazine

MAG

abbreviation:  Marine Aircraft Group

magazine

nautical:  Spaces or compartments devoted to the stowage of ammunition. Often specifically applied to compartments for the stowage of powder as a distinction from shell stowage spaces.

main body

nautical:  The hull proper, without the deck houses, etc.

main deck

nautical:  The principal deck of the hull, usually the highest extending from stem to stern and providing strength to the main hull.

MairMar

abbreviation:  Marine Air Depot Miramar

MAIRU

abbreviation:  Mobile Aircraft Instrument Repair Unit

Maj

abbreviation:  Major

MajGen

abbreviation:  Major General

Make up all hatch hoods

orders:  To take the hatch covers off, roll and secure them.

MAL

abbreviation:  Malariology Technician

MAL

abbreviation:  Malariology

MaM

abbreviation:  Mailman

MAN or MN

abbreviation:  Very high frequency voice radio (FM)

Man overboard

orders:  Man the boat, or boats and pick up the man as soon as possible. Special conditions are set for war time.

Man the chains

orders:  Leadsman report to chains with lead line preparatory to taking soundings.

Man your boat

orders:  Put on life preservers, or not according to standing orders and take station in your boat.

MAN

abbreviation:  Manager

Man

abbreviation:  Manual

MANDREL

abbreviation:  Electric Jammer (radar)

manger

nautical:  A term applied to the manger-like space immediately forward of the manger plate which is fitted just abaft the hawse pipes to prevent water entering through the pipes from running aft over the deck.

manhole

nautical:  A round or oval hole cut in decks, tanks, boilers, etc. for the purpose of providing access.

manifold

nautical:  A casting or chest containing several valves. Suction or discharge pipes from or to the various compartment, tanks, and pumps are led to it, making it possible for a pump to draw from or deliver to any one of several compartments.

ManMedDept

abbreviation:  Manual of the Medical Department

Manned and ready

orders:  Each station reports "Manned and Ready" to Control when the station has been placed in the fully ready condition, with sufficient personnel present to service the station using primary methods. Control reports "Manned and Ready" to Conn when all stations have reported.

mantlet plate

nautical:  A thin plate for the protection of personnel, fitted over bolt or rivet heads to act as a screen to prevent the heads flying about when the structure is subjected to impact.

MAP

abbreviation:  Ministry of Aircraft Production (GB)

MAPRC

abbreviation:  Mediterranean Allied Photographic reconnaissance Command

MAPUC

abbreviation:  Modified Area Production Urgency Committee

MAQ

abbreviation:  Money allowance for quarters for dependents (W for wife; M, mother; F, father; LC, legitimate child; AC, adopted child)

MAR

abbreviation:  Marine

MarAirWing

abbreviation:  Marine Aircraft Wing

Marauder

abbreviation:  See JM-#

MarBasScol

abbreviation:  Marine Corps Basic School

MarBks

abbreviation:  Marine Barracks

MarBrig

abbreviation:  Marine Brigade

MARCOR

abbreviation:  marine Corps

MarCorps

abbreviation:  Marine Corps

MarDiv

abbreviation:  Marine Division

MARE

abbreviation:  Mare Island

MARegSq

abbreviation:  Marine Air Regulating Squadron

MarFair

abbreviation:  Marine Fleet Air

MarFAIRWest

abbreviation:  marine Fleet Air, West Coast

Marg. Plt.

blueprints:  Margin Plate.

MarGarFor

abbreviation:  marine Garrison Force

MarGilsArea

abbreviation:  Marshalls-Gilberts Area

margin plank

nautical:  A plank forming the boundary or margin of the deck planking.

margin plate

nautical:  The outer boundary of the inner bottom, connecting it to the shell plating at the bilge.

MARI

abbreviation:  Mercantile Atlantic Routing Instructions

marine railway

nautical:  See drydock, railway.

Mariner

abbreviation:  See PMB-1, PBM -3-5, PBM-3R

Mark or Mk

abbreviation:  Symbol used to distinguish different types of ordnance and certain other equipment. A newly developed type would be designated Mark (Mk) I; with the first minor change it would be MkI Mod (modification) I. Eventually these changes would become sufficient to start with MkII. On 17 April 1944, BuShips changed the numerals from Roman to Arabic; Mark II became Mk 2, etc.

marlin

nautical:  A double-threaded, left-handed tarred cord, about ¹/₈" diameter, made of a good grade of American hemp.

marline spike

nautical:  A pointed iron or steel tool used to separate the strands in splicing rope, and as a lever in marling or putting on seizings. The wire rope spike has a flat, rounded end and the manila rope spike has a sharp point.

MarPac

abbreviation:  Headquarters, Department of the Pacific (USMC)

Mars

abbreviation:  See JRM-#, PB2M- 1R

MarTra&ReplComs

abbreviation:  Marine Training and Replacement Commands

MAS

abbreviation:  German and Italian craft corresponding to United States MTB

MAS

abbreviation:  Low-powered guided missile jammer (radar)

MASAF

abbreviation:  Mediterranean Allied Strategic Air Force

MASCU

abbreviation:  Marine Air Support Control Unit

MASG

abbreviation:  Marine Air Support Group

MASS

abbreviation:  Massachusetts

Mast (Captain’s)

glossary:  A disciplinary hearing conducted periodically to adjudicate petty offenses.

mast collar

nautical:  A piece of wood or a steel shape formed into a ring and fitted around the mast hole in a deck.

mast hounds

nautical:  The upper portion of the mast at which the outrigger or trestle trees are fitted. Also applied to that portion at which the hound band for attaching the shrouds is fitted on masts without outrigger or trestle trees.

mast partners

nautical:  A term applied to wood planking or steel plating worked around a mast hole to give side support to the mast.

mast step

nautical:  A term applied to the foundation on which a mast is erected.

mast table

nautical:  See Boom Table.

mast

nautical:  A long pole of steel or wood, usually circular in section, one or more of which are usually located, in an upright position, on the center line of a ship. Originally intended for carrying sails, they are now used more as supports for the rigging, cargo and boat-handling gear and wireless equipment.

Master key fire

orders:  Several guns are fired by one firing key usually located at the director. On this command gun pointers close and lock firing keys, and set firing circuit transfer switches on "Motor Generator".

MAT

abbreviation:  Material

MAT

abbreviation:  mechanical Aptitude Test

MATAF

abbreviation:  Mediterranean Allied Tactical Air Force

Match parallax

orders:  Match parallax zero readers to make the guns toe in on a single target.

Match pointers (zero readers) in train (elevation)

orders:  A command from the Control to guns (searchlights) to match coarse [course] and fine dials on the indicators.

MATD

abbreviation:  Mine and Torpedo Detector (sonar)

MATMU

abbreviation:  Mobile Aircraft Torpedo Maintenance Unit

MATS

abbreviation:  Mediterranean Air Transport Service

MAW

abbreviation:  Marine Aircraft Wing

MAWC

abbreviation:  Marine Air, West Coast

MAWP

abbreviation:  Marine Air Wing, Pacific

MAWS

abbreviation:  Marine Air Warning Squadron

MB

abbreviation:  Main Battery

MB

abbreviation:  Marine Barracks

MB

abbreviation:  Motorboat (USCG)

MBAD

abbreviation:  Marine Corps Air Depot

MBC

abbreviation:  Mediterranean Bombardment Code

MBDG

abbreviation:  Marine Base Defense Group

MBMU

abbreviation:  Mobile Base Maintenance Unit

MBNAS

abbreviation:  Marine Barracks, Naval Air Station

MBNMD

abbreviation:  Marine Barracks, Naval Mine Depot

MBNOB

abbreviation:  Marine Barracks, Naval Operating Base

MBNS

abbreviation:  Marine Barracks, Naval Station

MBNYd

abbreviation:  Marine Barracks, Navy Yard

MBSB

abbreviation:  marine Barracks, Submarine Base

MBY&D

abbreviation:  Maintenance, Bureau of Yards and Docks (appropriation title)

MC-M

abbreviation:  USNR designation for Merchant Marine officers qualified for General Service in the Medical Corps; this classification was abolished in September 1944 and replaced by MCM.

MC-V(G)

abbreviation:  USNR designation for medical officers, qualified for general detail afloat or ashore. This classification was abolished in September 1944 and replaced by MC or MC(S).

MC-V(S)

abbreviation:  USNR designation for medical officers qualified for specialist duties. This classification was abolished in September 1944 and replaced by MC or MC(S).

MC

abbreviation:  Marine Corps

MC

abbreviation:  Maritime Commission

MC

abbreviation:  Megacycles

MC

abbreviation:  USN officer designation for Medical Corps

MCA

abbreviation:  Maritime Control Area

MCA

abbreviation:  Material Coordinating Agency

MCAAF

abbreviation:  Marine Corps Auxiliary Air Facility

MCAAS

abbreviation:  Marine Corps Auxiliary Air Station

MCAB

abbreviation:  Marine Corps Air Base

MCAF

abbreviation:  Marine Corps Air Facility

MCAF

abbreviation:  Mediterranean Coastal Air Force Headquarters

MCAS

abbreviation:  Marine Corps Air Station

MCB

abbreviation:  Marine Corps Base

MCk

abbreviation:  Master Cook

MCM

abbreviation:  Manual for Court Martial (Army)

MCM

abbreviation:  Marine Corps Manual

MCM

abbreviation:  USNR officer designation for General Service, Medical Corps, Merchant Marine

MCMR

abbreviation:  USNR officer designation for General Service, Medical Corps, Merchant Marine. Formerly MCM.

MCMS

abbreviation:  USNR officer designation for Special Service, Medical Corps, Merchant Marine. Formerly MCM(S).

MCO

abbreviation:  Marine Corps Order

MCPD

abbreviation:  Marine Corps Procurement District

MCR

abbreviation:  Marine Corps Reserve

MCR

abbreviation:  USNR officer designation for General Service, Medical Corps. Formerly MC.

MCS

abbreviation:  Marine Corps Schools

MCS

abbreviation:  Megacycles

MCS

abbreviation:  USNR officer designation for Special Service, Medical Corps. Formerly MC(S).

MCT

abbreviation:  Mechanical Comprehension Test

MCV

abbreviation:  Maritime Commission, Victory hip

MCVG

abbreviation:  Marine Carrier Group

MCW

abbreviation:  Modulated Continuous Wave

MCW

abbreviation:  USNR officer designation for Women’s Reserve, Medical Corps. Formerly MC(W).

MCWR

abbreviation:  Marine Corps Women’s Reserve

MD

abbreviation:  Marine Detachment

MD

abbreviation:  Maryland

MD

abbreviation:  Medical Department

MD

abbreviation:  Methldichlorarsine

MD

abbreviation:  Mine Disposal

MDM

abbreviation:  Mailgram

MDNAD

abbreviation:  Marine Barracks, Naval Ammunition Depot

MDU

abbreviation:  Military Government Unit

MDW

abbreviation:  Military District of Washington (Army)

ME

abbreviation:  Maine

ME

abbreviation:  Middle East

MEBD

abbreviation:  Medical Examining Board

Mech

abbreviation:  Mechanical

MECZ

abbreviation:  Mechanized

MED

abbreviation:  Medical

Med

abbreviation:  Mediterranean

MEDICOS

abbreviation:  Mediterranean Instructions to Convoys

MEDOFCOMD

Bureau of Personnel Condensation Code:  Medical Officer-in-Command

MedSupDep

abbreviation:  Medical Supply Depot

Meet her

orders:  Use the rudder to check the ship’s swing. Usually given when the ship’s head is nearing the desired course.

MEF

abbreviation:  Forces in the Middle East (GB)

MEI

abbreviation:  Manual of Engineering Instructions

MEIU

abbreviation:  Middle East Interpretation Unit (GB)

MEIU

abbreviation:  Mobile Explosives Investigation Unit

MEMO

abbreviation:  Memorandum

MEO

abbreviation:  Major Engine Overhaul

MER-1

abbreviation:  Merchant Shipping Control Operating Plan for the United States

MER

abbreviation:  Merchant Shipping Control Plan

MER

abbreviation:  Merchant

MERAIR

Bureau of Personnel Condensation Code:  Including commercial air

MERAIRDIR

Bureau of Personnel Condensation Code:  In performing the above travel, commercial air is directed where necessary (or between points specified) to expedite completion of this duty

MERCO

abbreviation:  Mercantile Communications

MERCO

abbreviation:  Merchant Ship Movement Reports

MERCOS

abbreviation:  Merchant Codes

MERSIGS

abbreviation:  Merchant Ships’ Signal Books

MERSIGS

abbreviation:  Merchant Signals

MERTRANSUB

Bureau of Personnel Condensation Code:  Commercial transportation and subsistence authorized

MESC

abbreviation:  Middle East Supply Center

MesCpl

abbreviation:  Mess Corporal (USMC)

Mess gear

orders:  Clear mess decks. (Gives mess cooks opportunity to lay out their gear).

MESS

abbreviation:  Messman

messroom

nautical:  A space or compartment where members of the crew eat their meals; a dining room. A dining room in which officers eat their meals is called a wardroom messroom.

MessSgt

abbreviation:  Mess Sergeant (USMC)

MET

abbreviation:  Meteorological

Metal

abbreviation:  Metallurgical

METON

abbreviation:  Measured tons discharged or loaded

MEW

abbreviation:  Microwave Early Warning (radar)

MEW

abbreviation:  Ministry of Economic Warfare (GB)

MEX

abbreviation:  Mexico, Mexican

MF

abbreviation:  Medium Frequency

MF

abbreviation:  Midget peeper radar jam

MFA&A

abbreviation:  Monuments, Fine Arts and Archives (SHAEF)

MFairWest

abbreviation:  Marine Fleet Air, West Coast

MFT

abbreviation:  Medical Field Service Technician

MFT

abbreviation:  Medical Field Service

MFWC

abbreviation:  Marine Fleet Air, West Coast

MG

abbreviation:  Machine Gun

MG

abbreviation:  Machine Gunner

MG

abbreviation:  Machinist’s Mate, Industrial Gas Generating Mechanic

MG

abbreviation:  Mark I Machine Gun Trainer

MG

abbreviation:  Military Government

MG

abbreviation:  Mississippi Rover to Galveston (routing designation)

Mgas

abbreviation:  Motor gasoline

MGB

abbreviation:  Motor Gunboat (GB)

MGDA

abbreviation:  Multiple Degaussing Cable

MGUN

abbreviation:  Marine Gunner

MGunSgt

abbreviation:  Master Gunnery Sergeant (USMC)

MGYSGT

abbreviation:  Master Gunnery Sergeant (USMC)

MH

abbreviation:  Congressional Medal of Honor

MHB

abbreviation:  Master Horizontal Bomber

MI

abbreviation:  mare Island

MI

abbreviation:  Medical Illustrator

MI

abbreviation:  Mile(s)

MI

abbreviation:  Military Intelligence (Army)

MIA

abbreviation:  Missing In Action

MICH

abbreviation:  Michigan

Mickey Mouse

abbreviation:  Chartlet showing estimated positions at specific times during invasions

Mid

abbreviation:  Middle

Mid

abbreviation:  Midshipman

MID

abbreviation:  Military Intelligence Division (War Department)

mid

glossary:  The Mid Watch (or Middle Watch) ran from midnight to 4 a.m. (0000 to 0400 on the deck logs).

MIDN

abbreviation:  Midshipman

MidPac

abbreviation:  Middle Pacific (Army)

MIDS

abbreviation:  Movement Information Distribution Station

midship beam

nautical:  A deck beam of the transverse frame located at the midpoint between the forward and after perpendiculars. Also applicable to the transverse dimension of the hull at the same point.

midship frame

nautical:  The frame located at the midpoint between the perpendiculars.

midship section

nautical:  The vertical transverse section located at the midpoint between the forward and after perpendiculars. Usually this is the largest section of the ship in area. Also, applied to a drawing showing the contour of the midship frame upon which is depicted all the structural members at that point with information as to their size and longitudinal extent.

midships

nautical:  Same as Amidships.

Mike

abbreviation:  "M" in the phonetic alphabet

MIL

abbreviation:  Military

MIME

abbreviation:  Ministry of Information middle East (GB)

MIN

abbreviation:  Mine; Minecraft

MIN

abbreviation:  Minute

MinBatFor

abbreviation:  Minecraft Battle Force, Pacific Fleet

Mind your rudder

orders:  A warning to exact more careful steering, or to put the steersman on the alert for the next command.

MinDiv

abbreviation:  Mine Division

MineCtrMeasSta

abbreviation:  Mine Counter-Measure Station

MINN

abbreviation:  Minnesota

MinRon

abbreviation:  Mine Squadron

MINSY

abbreviation:  Mare Island Naval Shipyard

MINU

abbreviation:  Mobile Instrument Investigation unit

MINY

abbreviation:  Mare Island Navy Yard

MIO

abbreviation:  Mobile Issuing Office

MIRS

abbreviation:  Military Intelligence Research Section

MIS

abbreviation:  Material Inspection Service

MIS

abbreviation:  Military Intelligence Services (Army)

MIS

abbreviation:  Mine Issuing Ship

MIS

abbreviation:  Mission

MISC

abbreviation:  Allotments for miscellaneous purposes

MISS

abbreviation:  Mississippi

MIT

abbreviation:  Massachusetts Institute of Technology

Mit

abbreviation:  mitigate(d)

Mitchell

abbreviation:  See PBJ-#

MITRE

Bureau of Personnel Condensation Code:  Authorized to omit or revisit any of the above mentioned places as may be deemed necessary

mitred

nautical:  Cut to an angle of 45 degrees or two pieces joined to make a right angle.

MITREVAR

Bureau of Personnel Condensation Code:  Authorized to omit or revisit any of the above mentioned places and to vary the above itinerary as may be deemed necessary

MITVAR

Bureau of Personnel Condensation Code:  Authorized to omit any of the above mentioned places and to vary the above itinerary as may be deemed necessary

MJAO

abbreviation:  Mediterranean Joint Air Orders

Mk.

blueprints:  Mark.

Mk

abbreviation:  Mark; see Mark

Mks

abbreviation:  Marksman (USMC)

MKUD

abbreviation:  People’s Commissar for Internal Affairs (USSR)

ML

abbreviation:  Molder

ML

abbreviation:  Money List

ML

abbreviation:  Motor Launch

ML

abbreviation:  Small Mine Sweeper

MLC

abbreviation:  Major Landing Craft

MLC

abbreviation:  Military Landing Craft

Mld. Bdth.

blueprints:  Molded Breadth.

Mld. Dpth.

blueprints:  Molded Depth.

Mld.

blueprints:  Molded.

Mldr

abbreviation:  Molder

MLR

abbreviation:  Mail Line of Resistance (Army)

MLSR

abbreviation:  Molder, Ship Repair

MLSRC

abbreviation:  Molder, Ship Repair, Cupola Tender

MLSRF

abbreviation:  Molder, Ship Repair, Foundryman

MLSRM

abbreviation:  Molder, Ship Repair, Molder

MM

abbreviation:  Machinist’s Mate

MM

abbreviation:  Millimeters

MMCBE

abbreviation:  Machinist’s Mate, Construction Battalion, Equipment Operator

MMD

abbreviation:  Manual of the Medical Department

MME

abbreviation:  Machinist’s Mate, Engineman

MMNIC

abbreviation:  Main Mediterranean Naval Intelligence Center

MMP

abbreviation:  Merchant Marine Personnel Division (USCG)

MMS

abbreviation:  British vessel corresponding to U.S. YMS [Motor Minesweeper]

MMS

abbreviation:  Machinist’s Mate, Shop Mechanic

MMS

abbreviation:  Motor Minesweeper

MMSR

abbreviation:  Machinist’s Mate, Ship Repair

MMSRE

abbreviation:  Machinist’s Mater, Ship Repair, Engine Operator

MMSRO

abbreviation:  Machinist’s Mater, Ship Repair, Instrument Maker

MMSRS

abbreviation:  Machinist’s Mater, Ship Repair, Outside Machinist

MMT

abbreviation:  Merchant Marine Technical Division (USCG)

MN or MAN

abbreviation:  Very high frequency voice radio (FM)

MN

abbreviation:  Mineman

MNA

abbreviation:  Missing, not enemy action

MNAO

abbreviation:  Mobile Naval Airfield Organization

MNAU

abbreviation:  Mobile Naval Airfield Unit

Mngr

abbreviation:  Manager

Mo(s)

abbreviation:  Month(s)

MO

abbreviation:  Medical Officer

MO

abbreviation:  Missouri

MO

abbreviation:  Mobile

MO

abbreviation:  Monthly Order

Mob

abbreviation:  Mobile

Moby Dick

abbreviation:  Experimental Navy rocket engine

mock up

nautical:  To build up of wood or light material to scale or full size a portion of the ship before actual fabrication of the steel work. Used to study arrangement, methods of fabrication, workability, etc.

Mod

abbreviation:  Modification; used especially to distinguish successive modifications of a type of ordnance equipment. See Mark.

MOD

abbreviation:  Modify (ied) (ing)

MOF

abbreviation:  Ministry of Food (GB)

MoGas

abbreviation:  Motor Gasoline

MOI

abbreviation:  Ministry of Information (GB)

MOIC

abbreviation:  Medical Officer-in-Charge

MOINC

abbreviation:  Medical Officer-in-Charge

mold loft

nautical:  A space used for laying down the lines of a vessel to actual size and making templates therefrom for laying out the structural work entering into the hull.

mold

nautical:  A pattern or template. Also a shape of metal or wood over or in which an object may be hammered or pressed to fit.

molded edge

nautical:  The edge of a ship’s frame which comes in contact with the skin, and is represented in the drawings.

molded line

nautical:  A datum line from which is determined the exact location of the various parts of a ship. It may be horizontal and straight as the molded base line, or curved as a molded deck line or a molded frame line. These lines are determined in the design of a vessel and adhered to throughout the construction. Molded lines are those laid down in the mold loft.

MoMM

abbreviation:  Motor Machinist’s Mate

MoMMSR

abbreviation:  Motor Machinist’s Mate, Ship Repair

MOMP

abbreviation:  Mid-Ocean Meeting Point

MONAB

abbreviation:  Mobile Naval Air Base

MONT

abbreviation:  Montana

Moonshine

abbreviation:  RCM countermeasure device

mooring lines

nautical:  The chains or ropes used to tie up a ship.

mooring pipe

nautical:  An opening through which mooring lines pass.

mooring

nautical:  A term applied to the operation of anchoring a vessel in a harbor, securing her to a mooring buoy, or to a wharf or dock by means of chains or ropes.

MOP

abbreviation:  Mustering Out Pay

MOR

abbreviation:  Moroccan

Morest

abbreviation:  Mobile Arresting Gear

morning

glossary:  4 a.m. to 8 a.m. (0400 to 0800 on the deck logs).

MoroccanSeaFron

abbreviation:  Moroccan Sea Frontier

MorSeaFron

abbreviation:  Moroccan Sea Frontier

mortise

nautical:  A hole cut in any material to receive the end or tenon of another piece.

MOS

abbreviation:  Marking of Overseas Shipments

MOS

abbreviation:  Ministry of State (GB)

MOSC

abbreviation:  Military Oil Sub-Committee (of North African Economic Board)

MOSRD

abbreviation:  Motor Machinist’s Mate Ship Repair, Diesel Engineering Mechanic

MOSRG

abbreviation:  Motor Machinist’s Mate, Ship Repair, Gasoline Engine Mechanic

MOT

abbreviation:  Motor

MoTarDiv

abbreviation:  Mobile Target Division

MOTG

abbreviation:  Marine Operational Training Group

MOTHER

abbreviation:  Land-based radio homing beacon (YG)

MotoGas

abbreviation:  Motor Gasoline

motorship

nautical:  A ship driven by some form of internal combustion engine. Not generally applied to small boats driven by gasoline engines which are usually called motorboats.

MotPict

abbreviation:  Motion Picture

Mov

abbreviation:  Movement

MOWT

abbreviation:  Ministry of War Transport (GB)

MP

abbreviation:  Military Police

MP

abbreviation:  Motion Picture Production

MPC

abbreviation:  Manpower Priorities Committee

MPCo

abbreviation:  Military Police Company (USMC)

MPCRI

abbreviation:  Mercantile Pacific Coastal Routing Instructions

MPH

abbreviation:  Miles Per Hour

MPO

abbreviation:  Motion Picture Operator

MPRI

abbreviation:  Merchant Pacific Routing Instructions

MPSC

abbreviation:  Material Planing Schedule and Control (Division of Inspection Offices, Navy)

MQO

abbreviation:  Marksmanship Qualification Order (USMC)

MR&D

abbreviation:  Material Redistribution & Disposal

MR

abbreviation:  Machinist’s Mate, Refrigeration

MR

abbreviation:  Medium Range Planes

MR

abbreviation:  Mobilization Regulation (Army)

MRC

abbreviation:  Material Redistribution Center

MRC

abbreviation:  Movement Report Center

MRI

abbreviation:  Machine Records Installation

MRM

abbreviation:  Medical Repair Technician

MRO

abbreviation:  Maintenance, Repair and Operating Supplies

MRO

abbreviation:  Management Review Officer

MRO

abbreviation:  Movement Report Office

MRS

abbreviation:  Military Railway Service

MRS

abbreviation:  Movement Report Sheet

MRU

abbreviation:  Machine Records Unit (Army)

MRU

abbreviation:  Material Recovery Unit

MS

abbreviation:  Medical Survey

MS

abbreviation:  Medium Steel

MS

abbreviation:  Mine Sweeping

MS

abbreviation:  Minesweeper

MS

abbreviation:  MotorShip

MSCI

abbreviation:  Mediterranean Secret Convoy instructions

MSCS

abbreviation:  Merchant Ship Control Service

Msg

abbreviation:  Message

MsgCen

abbreviation:  Message Center

MSGO

abbreviation:  Mediterranean Secret General Orders

Msgr

abbreviation:  Messenger

Msm

abbreviation:  Messman (USMC)

MSmth

abbreviation:  Metalsmith

MSR

abbreviation:  Metalsmith, Ship Repair

MSR

abbreviation:  Monthly Status Report

MSRB

abbreviation:  Metalsmith, Ship Repair, Blacksmith

MSRC

abbreviation:  Metalsmith, Ship Repair, Coppersmith

MSRF

abbreviation:  Metalsmith, Ship Repair, Forger-Anglesmith

MSRS

abbreviation:  Metalsmith, Ship Repair, Sheet Metal Worker

MStd

abbreviation:  Master Steward (USMC)

MSU

abbreviation:  Material Salvage Unit

MSW

abbreviation:  Munitions Assignment Board (Washington)

MT

abbreviation:  Military Transport

MT

abbreviation:  Motor Transport(ation)

MTAF

abbreviation:  Mediterranean Tactical Air Force Headquarters

MTB

abbreviation:  Maintenance of True Bearing

MTB

abbreviation:  Motor Torpedo Boat

MTBRon

abbreviation:  Motor Torpedo Boat Squadron

MTBSTC

abbreviation:  Motor Torpedo Boat Squadrons Training Center (Melville, R.I.)

Mtcl

abbreviation:  Motorcycle

MTD

abbreviation:  Mobile Target Division (Mine Forces)

MTF

abbreviation:  Mechanical Time Fuse

MTk

abbreviation:  Medium Tank

MTO

abbreviation:  Medical Transport Officer

MTO

abbreviation:  Mediterranean Theater of Operations

MTO

abbreviation:  Mission, Task, Objective

MTP

abbreviation:  Mobilization Training Program (Army)

MTSgt(C)

abbreviation:  Master Technical Sergeant (Commissary) (USMC)

MTSgt

abbreviation:  Master Technical Sergeant (USMC)

mullion

nautical:  The vertical bar dividing the lights in a window.

MunBg

abbreviation:  Munitions Building (War Department)

Mus

abbreviation:  Musician

mushroom ventilator

nautical:  A ventilator whose top is shaped like a mushroom and fitted with baffle plates so as to permit the passage of air and prevent the entrance of rain or spray. Located on or above a weather deck to furnish ventilation to compartments below deck.

muster roll

glossary:  A periodic listing of the ship’s crew. Officers’ muster rolls often include next-of-kin information.

MV

abbreviation:  Cargo Ship (GB)

MVI

abbreviation:  Merchant Vessel Inspection Division (USCG)

MVSS

abbreviation:  Marine Wing Service Squadron

MWB

abbreviation:  Marine whaleboat

MWT

abbreviation:  Ministry of War Transport (GB)

MWTR

abbreviation:  Ministry of War Transport Representative (GB)

MYDIS

abbreviation:  My dispatch

MYLTR

abbreviation:  My letter

MYMGM

abbreviation:  My mailgram

MYMSG

abbreviation:  May message

MYRAD

abbreviation:  My radio

MYSER

abbreviation:  My serial

MYTEL

abbreviation:  My telegram

N&MCM

abbreviation:  Navy and Marine Corps Medal

N

abbreviation:  A suffix which, when appended to a basic USNR officer classification, indicates special qualifications in electronics: officers who are qualified CIO Watch Officers and who are also qualified in aircraft control under all conditions.

N

abbreviation:  First letter in the Navy aircraft designation, including a training plane

N

abbreviation:  Naval Aircraft Factory (manufacturer’s symbol)

N

abbreviation:  Navigation Department of a carrier

N

abbreviation:  Night Fighter (suffix to plane designation); see F6F-5N

N

abbreviation:  North

N2S

abbreviation:  "Kaydet"; Navy training plane (VN), manufactured by Stearman

N2T

abbreviation:  "Tutor"; single-engine Navy training plane (VN), manufactured by Timm

N3N

abbreviation:  Navy training plane (CV), manufactured by Naval Aircraft Factory

N5sa

abbreviation:  Purchases by Bureau of Supplies and Accounts for Bureau of Aeronautics (BuSandA symbol)

N5sd

abbreviation:  Purchases by Bureau of Supplies and Accounts for the Office of the Secretary (BuSandA symbol)

N5sm

abbreviation:  Purchases by Bureau of Supplies and Accounts for the Bureau of Medicine and Surgery (BuSandA symbol)

N5so

abbreviation:  Purchases by Bureau of Supplies and Accounts for the Bureau of Ordnance (BuSandA symbol)

N5sr

abbreviation:  Purchases by Bureau of Supplies and Accounts for the Bureau of Ships (Radio) (BuSandA symbol)

N5ss

abbreviation:  Purchases by Bureau of Supplies and Accounts for the Bureau of Ships (BuSandA symbol)

N5sx

abbreviation:  Purchases by the Bureau of Supplies and Accounts for the Bureau of Supplies and Accounts (BuSandA symbol)

N5sy

abbreviation:  Purchases by the Bureau of Supplies and Accounts for the Bureau of Yards and Docks (BuSandA symbol)

NA

abbreviation:  Canada to United Kingdom (routing designation)

NA

abbreviation:  National Archives

NA

abbreviation:  Naval Academy

NA

abbreviation:  Naval Air

NA

abbreviation:  Naval Attach

NA

abbreviation:  Naval Aviator

NA

abbreviation:  Not Appropriated

NAA

abbreviation:  Naval Attaché for Air

NAA

abbreviation:  Northern Attack Area

NAAF

abbreviation:  Naval Auxiliary Air Facility

NAAF

abbreviation:  Northwest African Air Force

NAAS

abbreviation:  Naval Auxiliary Air Station

NAB

abbreviation:  Naval Advanced Base

NAB

abbreviation:  Naval Air Base

NABA

abbreviation:  Naval Amphibious Base Annex

NABU

abbreviation:  Naval Advanced Base Unit

NAC

abbreviation:  Naval Academy

NAC

abbreviation:  Naval Air Center

NACA

abbreviation:  National Advisory Committee on Aeronautics

NACAF

abbreviation:  Northwest African Coastal Air Force

NACIO

abbreviation:  Naval Air Combat Information Office(r)

NACIS

abbreviation:  Naval Air Combat Information School

NACSB

abbreviation:  Naval Aviation Cadet Selection Board

NACTU

abbreviation:  Night Attack Combat Training Unit

NACU

abbreviation:  National Association of Colleges and Universities

NACVM

abbreviation:  Navigation countermeasures and deception

NAD

abbreviation:  Naval Air Depot

NAD

abbreviation:  Naval Air Detail

NAD

abbreviation:  Naval Ammunition Depot

NADM

abbreviation:  Naval Administration

NADU

abbreviation:  Naval Aircraft Delivery Unit

NAEB

abbreviation:  North African Economic Board

NAer

abbreviation:  Bureau of Aeronautics Publications; later, NAVAER

NAES

abbreviation:  Naval Air Experimental Station

NAF

abbreviation:  Naval Aircraft Facility

NAF

abbreviation:  Naval Aircraft Factory

NAF

abbreviation:  Northern Attack Force

NAFC

abbreviation:  Naval Air Ferry Command

NAFC

abbreviation:  Northern Attack Force Commander

NAFI

abbreviation:  Naval Air Fighting Instructions

NAFS

abbreviation:  Naval Air Fighter School

NAGC

abbreviation:  Naval Armed Guard Center

NAGCO

abbreviation:  Naval Air Ground Center

NAGS

abbreviation:  Naval Air Gunners School

NAIT(C)

abbreviation:  Naval Air Intermediate Training (Command)

NAIT

abbreviation:  Naval Air Intermediate Training

NALO

abbreviation:  Naval Air Liaison Officer

NAM

abbreviation:  Naval Aircraft modification

NAMB

abbreviation:  Naval Amphibious Base

NAMC

abbreviation:  Naval Aircraft Material Center

NAMD

abbreviation:  Naval Ammunition Depot

NAMO

abbreviation:  Naval Aircraft Maintenance Orders

NAMT

abbreviation:  naval Aircraft Mobile Trainer

NAMU

abbreviation:  Naval Aircraft Material (Utility)

NAMU

abbreviation:  Naval Aircraft Modification Unit

Nan

abbreviation:  "N" in the phonetic alphabet

NAN

abbreviation:  Infra-red signalling system

NANCF

abbreviation:  North Atlantic Naval Coastal Frontier

NANCY Gear

abbreviation:  Infra-red gear for night signalling; formerly, NAN Gear

NANews

abbreviation:  Naval Aviation News

NANFAC

abbreviation:  Naval Air Navigation Facility Advisory Committee

NANS

abbreviation:  Naval Air Navigation School

NAOT

abbreviation:  Naval Air Operational Training

NAOTC

abbreviation:  Naval Air Operations Training Command

NAP(G)

abbreviation:  Naval Aviation Pilot (Glider)

NAP

abbreviation:  Naval Air Priorities

NAP

abbreviation:  Naval Aviation Pilot

Napalm

abbreviation:  Fire bomb used in pre-invasion assaults

NAPC

abbreviation:  Naval Air Priorities Office

NAPP

abbreviation:  Naval Aviation Preparatory Program

NAPRW

abbreviation:  Northwest African Photographic Reconnaissance Wing

NAPT(C)

abbreviation:  Naval Air Primary Training (Command)

NAPT

abbreviation:  Naval Air Primary Training

NAPTCRO

abbreviation:  Naval Air Primary Training Command Regional Office

NAR

abbreviation:  Naval Air Representative (British Admiralty Delegation, Washington)

NARSTC

abbreviation:  Naval Air Rescue Training Command

NARTC

abbreviation:  Naval Air Research Training Command

NARTU

abbreviation:  naval Air Reserve Training Unit

NAS

abbreviation:  Naval Air Station

NASBERM

abbreviation:  Naval Air Station Bermuda

NASCRIST

abbreviation:  Naval Air Station Corpus Christi

NASD

abbreviation:  Naval Aviation Supply Depot (Philadelphia)

NASDIEGO

abbreviation:  Naval Air Station San Diego

NASGTMO

abbreviation:  Naval Air Station Guantanamo

NASJAX

abbreviation:  Naval Air Station Jacksonville

NASLAKE

abbreviation:  Naval Air Station Lakehurst

NASQUON

abbreviation:  Naval Air Station Quonset Point

NASS

abbreviation:  Naval Air Signal School

NAT

abbreviation:  Naval Air Training

NAT

abbreviation:  North African Theater

NATAF

abbreviation:  Northwest African Tactical Air Force

NATB

abbreviation:  Naval Air Training Base

NATBASES

Bureau of Personnel Condensation Code:  Naval Air Training Bases

NATC

abbreviation:  Naval Air Testing Center

NATC

abbreviation:  Naval Air Training Center

NATEC

abbreviation:  Naval Air Training and Experimental Command (LTA, Lakehurst)

NATechTraCen

abbreviation:  Naval Air Technical Training Center

NATNAVMEDCEN

Bureau of Personnel Condensation Code:  National Naval Medical Center (Bethesda, Maryland)

NATOUSA

abbreviation:  North African Theater of Operations United States Army

NATS

abbreviation:  Naval Air Transport Service

NATSFerry

abbreviation:  Naval Air Transport Service, Ferry Command

NATSLant

abbreviation:  Naval Air Transport Service, Atlantic Wing

NATSPac

abbreviation:  Naval Air Transport Service, Pacific Wing

NatSup

abbreviation:  National Supply Company

NATT

abbreviation:  Naval Air Technical Training

NATTC

abbreviation:  Naval Air Technical Training Center

nautical mile

nautical:  See knot.

NAV

abbreviation:  Naval; Navy; Navigation(al)

NAVACT

abbreviation:  Communication directed to all Navy activities

NAVAER

abbreviation:  Bureau of Aeronautics Publications

NavAirFac

abbreviation:  Naval Air Facility

NavAirTraCen

abbreviation:  Naval Air Training Center

NAVALOT

abbreviation:  Allotment Division (BuSandA)

NavAmDep

abbreviation:  Naval Ammunition Depot

NAVAUTH

abbreviation:  Naval Authority

NavBase

abbreviation:  Naval Base

NAVBOILAB

abbreviation:  Navy Boiler Laboratory

NAVC

abbreviation:  Naval Aviation Cadet

NAVCG

abbreviation:  Cost Guard Publications

NavCloDep

abbreviation:  Naval Clothing Depot

NAVCOM

abbreviation:  Naval Communications

NAVCONTRACEN

Bureau of Personnel Condensation Code:  Naval Construction Training Center

NAVCONVHOSP

Bureau of Personnel Condensation Code:  Naval Convalescent Hospital

NavDet

abbreviation:  Naval Detachment

NavDis

abbreviation:  Naval District

NavDiscBar

abbreviation:  Naval Disciplinary Barracks

NavDisp

abbreviation:  Naval Dispensary

NAVDIST

abbreviation:  Naval District

NAVDOCKS

abbreviation:  Bureau of Yards and Docks Publications

NavEu

abbreviation:  U.S. Naval Forces in European Waters

NAVEXAM

abbreviation:  Naval Examining Board

NAVEXOS

abbreviation:  Executive Office of the Secretary Publications

NavFac

abbreviation:  Naval Facility

NavFlightPrepSchol

abbreviation:  Naval Flight Preparatory School

NavFor

abbreviation:  U.S. Naval Forces

NavForces

abbreviation:  Naval Forces

NavForEu

abbreviation:  U.S. Naval Forces Europe; later, NavEu

NavForGer

abbreviation:  U.S. Naval Forces Germany

NavFrOf

abbreviation:  Navy Freight Office

NavFuelDep

abbreviation:  Naval Fuel Depot

NAVGEN

abbreviation:  Navy General Publications

NavGun

abbreviation:  Naval Gun Factory

NavHome

abbreviation:  U.S. Naval Home (Philadelphia)

NavHosp

abbreviation:  U.S. Naval Hospital

Navig

abbreviation:  Navigation; Navigator

Navigator

abbreviation:  See SNB-2- 2C

NAVINGSEN

abbreviation:  Naval Inspector General

NAVINTEL

abbreviation:  Naval Intelligence

NAVJAG

abbreviation:  Judge Advocate General’s Office Publications

NavJap

abbreviation:  U.S. Naval Forces, Japan

NavMag

abbreviation:  U.S. Naval Magazine

NAVMC

abbreviation:  Marine Corps Publications

NAVMED

abbreviation:  Bureau of Medicine and Surgery Publications

NavMed

abbreviation:  U.S. Naval Forces, Mediterranean

NavMinDep

abbreviation:  Naval Mine Depot

NAVMIS

abbreviation:  Naval Mission

NAVMUT

abbreviation:  Navy Mutual Aid Insurance (allotment for)

NavNAW

abbreviation:  U.S. Naval Forces, Northwest African Waters; later, NavMed

NavNetDep

abbreviation:  Naval Net Depot

NavNorSols

abbreviation:  Naval Forces, Northern Solomons

NavNZ

abbreviation:  Naval Forces, New Zealand

NAVOBSY

abbreviation:  Naval Observatory

NavOpFac

abbreviation:  Naval Operation Facility

NAVORD

abbreviation:  Naval Ordnance Publications

NAVPERS

abbreviation:  Navy Personnel

NavPhil

abbreviation:  U.S. Naval Forces Philippines

NavPowFac

abbreviation:  Naval Powder Factory

NavPreFlightScol

abbreviation:  Naval PreFlight School

NavPris

abbreviation:  Naval Prison

NavProv

abbreviation:  Naval Proving Ground (Dahlgren, Va.)

NAVPUBSConBd

abbreviation:  Navy Department Publications Control Board

NavPur

abbreviation:  Navy Purchasing Office

NavRadSta

abbreviation:  Naval Radio Station

NavRes

abbreviation:  Naval Reserve

NavResLab

abbreviation:  Naval Research Laboratory

NAVRESMIDSCOL

Bureau of Personnel Condensation Code:  Naval Reserve Midshipmen’s School

NavRetrainCom

abbreviation:  Naval Retraining Command

NavRoute

abbreviation:  Navy Routing Office

NavRyukyus

abbreviation:  Naval Forces, Ryukyus

NAVSANDA

abbreviation:  Bureau of Supplies and Accounts Publications; formerly, NSA

NAVSHIPS

abbreviation:  Bureau of Ships Publications

NavShipYd

abbreviation:  Naval Ship Yard

NavSta

abbreviation:  Naval Station

NavTechJap

abbreviation:  Naval Technical Mission to Japan (US)

NavTechTraCen

abbreviation:  Naval Air Technical Training Center

NavTecMisEu

abbreviation:  naval Technical Mission in Europe (US)

NavTorpSta

abbreviation:  Naval Torpedo Station

NAVTRADISTCEN

Bureau of Personnel Condensation Code:  Naval Training and Distribution Center

NAVTRANSAIR

abbreviation:  For travel by Naval Transport Aircraft Class priority is hereby certified

NavTraScol

abbreviation:  Naval Training School

NavTraSta

abbreviation:  Naval Training Station

NAVWARCOL

Bureau of Personnel Condensation Code:  Naval War College

NavWesPac

abbreviation:  U.S. Naval Forces Western Pacific

Navy No. —

abbreviation:  Navy Number (mail address, disguised)

Navy Regs

abbreviation:  U.S. Navy Regulations

NB

abbreviation:  Naval Base

NBAD

abbreviation:  Naval Bases Air Defense

NBC

abbreviation:  Navy Beach Commando

NBPA

abbreviation:  Navy Board for production Awards

NBS

abbreviation:  Bureau of Ships Publications; later, NAVSHIPS

NBSS

abbreviation:  Naval Beach Signal Section

NC or NNC

abbreviation:  Navy Nurse Corps

NC&B

abbreviation:  Naval Courts & Boards

NC

abbreviation:  Naval Correspondence

NC

abbreviation:  Navy Cross

NC

abbreviation:  North Carolina

NC

abbreviation:  Petroleum Technician

NC

abbreviation:  Special Projects

NC

abbreviation:  USN officer designation for Nurse Corps USN

NCA

abbreviation:  Naval Communications Annex

NCAP

abbreviation:  Naval Air Combat Patrol

NCAR

abbreviation:  North Carolina

NCB

abbreviation:  Naval Communications Board

NCD

abbreviation:  Notice of Credit Due

NCDC

abbreviation:  Naval Contract Distribution Center

NCDT&E Base

abbreviation:  Naval Combat Demolition Training and Experimental Base (Maui, T.H.)

NCDU

abbreviation:  Naval Combat Demolition Unit

NCG

abbreviation:  Coast Guard Publications; later, NAVCG

NCI

abbreviation:  Naval Coast Inspector

NCO

abbreviation:  Non-Commissioned Officer

NCOinC

abbreviation:  Non-Commissioned Officer-in-Charge

NCPI

abbreviation:  Navy Civilian Personnel Instructions

NCSC

abbreviation:  Naval Control Service Office (World War II British Routing Service)

NCSL

abbreviation:  Naval Code and Signal Laboratory

NCTC

abbreviation:  Naval Construction Training Center

NCUSA

abbreviation:  Navy Club of the United States of America

NCWTF

abbreviation:  Naval Commander Western Task Force

ND

abbreviation:  Naval District

ND

abbreviation:  Navy Department

NDAC

abbreviation:  National Defense Advisory Commission

NDAK

abbreviation:  North Dakota

NDB

abbreviation:  Naval Disciplinary Barracks

NDB

abbreviation:  Navy Department Bulletin

NDBS

abbreviation:  Naval Despatch Boat Service

NDBulCumEd

abbreviation:  Navy Department Bulletins, Cumulative Editions

NDD&RF

abbreviation:  Naval Dry Dock and Repair Facility

NDF

abbreviation:  Naval Dairy Farm

NDGO

abbreviation:  Navy Department General Order

NDO

abbreviation:  Navy Disbursing Officer

NDOS

abbreviation:  National Defense Operations Section (FCC)

NDP

abbreviation:  Navy Department Personnel

NDRC

abbreviation:  National Defense Research Council

NE-#

abbreviation:  "Grasshopper"; single-engine Navy utility plane (VJ), manufactured by Piper

NE

abbreviation:  Northeast

NEARNAVDIST

Bureau of Personnel Condensation Code:  Commandant of the nearest Naval District

NEBR

abbreviation:  Nebraska

NEF

abbreviation:  Naval Emergency Fund (appropriation title)

NEGAT

abbreviation:  Negative

NEI

abbreviation:  Netherlands East Indies

NEL

abbreviation:  naval Electronics Laboratory

NEL

abbreviation:  Naval Explosive Laboratory

Nell

glossary:  Mitsubishi G3M twin engine bomber.

Neptune

abbreviation:  See P2V-2

NES

abbreviation:  Naval Experimenting Station

NEV

abbreviation:  Nevada

NEWFO

abbreviation:  Newfoundland

NEWLON

abbreviation:  New London, Connecticut

NF or N/F

abbreviation:  Night Fighter aircraft

NF

abbreviation:  Norfolk, Virginia (Navy Yard)

NF

abbreviation:  Norfolk

NF

abbreviation:  Nose Fuse

NFA

abbreviation:  Naval Fuel Annex

NFB

abbreviation:  Naval Frontier Base

NFD

abbreviation:  Naval Fuel Depot

NFIS

abbreviation:  Naval Fighting Instruction School

NFPS

abbreviation:  Naval Flight Preparatory School

NFTB

abbreviation:  Naval Fleet Training Base

NFTS

abbreviation:  Naval Flight Training School

NG

abbreviation:  New York to Guantanamo (routing designation)

NGA

abbreviation:  A two frequency supersonic sounding gear for use with WFA (sonar)

NGF

abbreviation:  Naval Gun Factory

NGF

abbreviation:  Naval Gunfire

NGLO

abbreviation:  Naval Gunfire Liaison Officer

NGS

abbreviation:  Naval Gunfire Support

NH-#

abbreviation:  "Nightingale"; single-engine Navy trainer (VN), manufactured by Howard

NH

abbreviation:  Naval Home

NH

abbreviation:  Naval Hospital

NH

abbreviation:  New Hampshire

NHA

abbreviation:  National Housing Administration

NHAMP

abbreviation:  New Hampshire

NHO

abbreviation:  Hydrographic Office Publications

NHOS

abbreviation:  Naval Hospital

NI

abbreviation:  Naval Intelligence

NIA

abbreviation:  Navy Industrial Association

nibbing plank

nautical:  A margin plank that is notched to take the ends of regular deck planks and insure good calking of the joint.

NICO

abbreviation:  Navy Inventory Control Office

NID

abbreviation:  Naval Intelligence Division(British Admiralty)

NID

abbreviation:  U.S. Naval Intelligence Division; usually, ONI

NIDS

abbreviation:  Navigation Instrument Development Unit

NIG

abbreviation:  Naval Inspector General

niggerhead

nautical:  A small auxiliary drum on a winch. See Gypsy.

Nightingale

abbreviation:  See GH-#, NH-#

NIM

abbreviation:  Naval Inspector of Machinery

NInst

abbreviation:  Nose Instantaneous

NIO

abbreviation:  Naval Inspector Ordnance

NIO

abbreviation:  Navigational Information Office

NIP

abbreviation:  Nipponese

nipple

nautical:  A piece of pipe having an outside thread at both ends for use in making pipe connections. Various names are applied to different lengths, as close, short, long, etc.

NIS

abbreviation:  Naval Inspection Service

NITE

abbreviation:  Night

NiteDevRon

abbreviation:  Night Development Squadron

NIU

abbreviation:  Naval Intelligence Unit

NJ

abbreviation:  New Jersey

NJC

abbreviation:  Navy Job Classification manual

NJPMB

abbreviation:  Navy Jet Propelled Missile Board

NK

abbreviation:  New York to Key West (routing designation)

NL

abbreviation:  Naval Lighter (5x5x7 welded steel pontoons)

NL

abbreviation:  New London, Connecticut

NLD

abbreviation:  Navy Lighter (Pontoon) Dock

NLDF

abbreviation:  Naval Local Defense Forces

NLFED

abbreviation:  Naval Landing Force Equipment Depot

NLFM

abbreviation:  Noise Level Monitor (sonar)

NLO

abbreviation:  Naval Liaison Officer

NLRB

abbreviation:  National Labor Relations Board

NLSC

abbreviation:  Navy Lockheed Service Center

NLT

abbreviation:  Night Letter

NM&S

abbreviation:  Bureau of Medicine and Surgery Publications

NM

abbreviation:  Nautical Miles

NM

abbreviation:  Naval magazine

NM

abbreviation:  New Mexico

NM

abbreviation:  Sounding gear (fathometers); for use with WCA and WDA installations for sonar

NMAA

abbreviation:  Navy Mutual Air Association

NMAG

abbreviation:  Naval Magazine

NMB

abbreviation:  Naval Model Basin

NMC

abbreviation:  Marine Corps Publications; later, NAVMC

NMC

abbreviation:  Naval Medical Center

NMC

abbreviation:  Navy Mail Clerk

NMCJS

abbreviation:  Naval Member Canadian Joint Staff

NMCLK

abbreviation:  Navy Mail Clerk

NMD

abbreviation:  Naval Mine Depot

NMDS

abbreviation:  Naval Mine Disposal School

NMEX

abbreviation:  New Mexico

NMG

abbreviation:  Navy Military Government

NMI

glossary:  No Middle Initial. Most often used in muster rolls.

NMP

abbreviation:  Naval Management Program

NMR&DA

abbreviation:  Navy material Redistribution and Disposition Administration (BuSandA)

NMR&DO

abbreviation:  Naval Material Redistribution and Disposal Office(r)

NMRC

abbreviation:  Navy Material Redistribution Center

NMS

abbreviation:  Naval Meteorological Service

NMSB

abbreviation:  Navy manpower Survey Board

NMSD

abbreviation:  Naval Medical Supply Depot

NMSHC

abbreviation:  Bureau of Medicine and Surgery Hospital Corps Publications; later, NAVMED

NMTS

abbreviation:  Naval mine Testing Center

NMWS

abbreviation:  Naval Mine Warfare School

NMWTS

abbreviation:  Naval Mine Warfare Test Station

NN

abbreviation:  Newport News Shipbuilding and Drydock Company

NNAV

abbreviation:  Bureau of Navigation Publications; later, BPN

NNC or NC

abbreviation:  Navy Nurse Corps

NND

abbreviation:  Naval Net Depot

NNI

abbreviation:  Office of Naval Intelligence Publications

NNMC

abbreviation:  National Naval Medical Center (Bethesda, Maryland)

NNSB&DDCo

abbreviation:  Newport news Shipbuilding and Drydock Company

NNYd

abbreviation:  Norfolk Navy Yard

NO EFF

abbreviation:  No effects

NO

abbreviation:  Civil Works Contracts (BuSandA symbol)

NO

abbreviation:  Naval Observatory

NO

abbreviation:  New Orleans, Louisiana

No

abbreviation:  Number

NOa(F)

abbreviation:  Purchases by Bureau of Aeronautics (Facilities) (BuSandA symbol)

NOa(S)

abbreviation:  Purchases by Bureau of Aeronautics (Supplies); contracts written by BuAer (BuSandA symbol)

NOa

abbreviation:  Miscellaneous contract, written by BuAer (BuSandA symbol)

NOB

abbreviation:  Naval Operating Base

NOBDUCHAR

abbreviation:  Naval Operating Base, Dutch Harbor

NOBFRAN

abbreviation:  Naval Operating Base, San Francisco

NOBNEWT

abbreviation:  Naval Operating Base, Newport

NObs(F)

abbreviation:  Purchases by Bureau of Ships (Facilities) (BuSandA symbol)

NObs

abbreviation:  Contract for BuShips; written by BuShips (BuSandA symbol)

NOBSOLO

abbreviation:  Naval Operating Base, Coco Solo

NOBSY

abbreviation:  Naval Observatory

NOBTRIN

abbreviation:  Naval Operating Base, Trinidad

NOCT

abbreviation:  Navy Overseas Cargo Terminals

NOd

abbreviation:  Contract for Adjutant-General (BuSandA symbol)

NOd

abbreviation:  Contract written by Secretary of Navy’s Office (BuSandA symbol)

NODC

abbreviation:  Naval Operating Development Center

NodE

abbreviation:  Netherlands Forces in the East

NOF

abbreviation:  Naval Operating Facility

NOFT

abbreviation:  Naval Overseas Freight Terminal

NOI

abbreviation:  Non-Operational Intelligence

NOIC

abbreviation:  Naval Officer-in-Charge (British controlled port)

NOIC

abbreviation:  Naval Officer-in-Charge

NOIO

abbreviation:  Naval Ordnance Inspecting Officer

NOL

abbreviation:  Naval Ordnance Laboratory

NOLa

abbreviation:  New Orleans, Louisiana

NOm

abbreviation:  Contract for U.S> Marine Corps (BuSandA symbol)

NOm

abbreviation:  Purchases by the Quartermaster, Headquarters, U.S. Marine Corps (BuSandA symbol)

Nomad

abbreviation:  See PBN-#

Non

abbreviation:  Nonclassified

NOP

abbreviation:  Naval Officer Procurement

NOP

abbreviation:  Naval Ordnance Plant

NOp

abbreviation:  Purchases by Bureau of Naval Personnel; contract written by BuPers (BuSandA symbol)

NOPCL

abbreviation:  Naval Officer Personnel Circular Letter

Nor

abbreviation:  Normand (boiler)

NOR

abbreviation:  North(ern)

NORBS

abbreviation:  Northern Base Section (Corsica)

NorCalSec

abbreviation:  Northern California Section, Western Sea Frontier

NOrd(F)

abbreviation:  Purchases by Bureau of Ordnance (Facilities) (BuSandA symbol)

NOrd

abbreviation:  Bureau of Ordnance Publication; later, NAVORD

NOrd

abbreviation:  Purchases by Bureau of Ordnance; contract written by BuOrd (BuSandA symbol)

normalize

nautical:  To heat steel to a temperature slightly above the critical point and then allow it to cool slowly in air.

norman pin

nautical:  A metal pin fitted in a towing post or bitt for belaying the line.

NorPac

abbreviation:  North Pacific Area; North Pacific Force

Norseman

abbreviation:  See JA-#

NorSols

abbreviation:  Northern Solomons Area

NorVa

abbreviation:  Norfolk, Virginia

NorVaGrp

abbreviation:  Norfolk, Virginia Group

NorWesSeaFron

abbreviation:  Northwestern Sea Frontier

NorWesSec

abbreviation:  Northwestern Sector, Western Sea Frontier

NOs

abbreviation:  Contract for Bureau of Supplies and Accounts (BuSandA symbol)

nosing

nautical:  The part of a stair tread which projects beyond the face of the riser.

NOTAL

abbreviation:  Not at all

Nothing to the right (left)

orders:  This command is given when all small variations from the course must be kept to the left or right as the case may be.

NOTS

abbreviation:  Naval Ordnance Test Station

NOTU

abbreviation:  Naval Operational Training Unit

Now hear this

orders:  A phrase that calls attention to an order or command about to follow.

NOy

abbreviation:  Contract for Bureau of Yards and Docks (BuSandA symbol)

NOy

abbreviation:  Purchases by Bureau of Yards and Docks; contract written by BuDocks (BuSandA symbol)

NOyr

abbreviation:  Contract for real estate (BuSandA symbol)

NP-CLT

abbreviation:  Neuropsychiatry Clerical Procedure Technician

NP

abbreviation:  Naval Prison

NP

abbreviation:  Newport, Rhode Island

NPA

abbreviation:  naval Procurement Account

NPA

abbreviation:  Postal Affairs Section Publications

NPAB

abbreviation:  Navy Price Adjustment Board

NPANX

abbreviation:  Naval Potomac Annex

NPC

abbreviation:  Neuropsychiatry Clerical Procedure

NPC

abbreviation:  Neuropsychiatry Clerical Technician

NPDI

abbreviation:  Non-performance of duty because imprisoned

NPF&PP

abbreviation:  Naval Prison Farms and Prison Personnel (appropriation title)

NPF

abbreviation:  naval Powder Factory

NPF

abbreviation:  Naval Procurement Fund (appropriation title)

NPFS

abbreviation:  Naval Pre-Flight School

NPG

abbreviation:  Naval Proving Grounds

NPO

abbreviation:  Naval Port Officer

NPR

abbreviation:  Naval Petroleum Reserve

Nps

abbreviation:  Payments by Office of the Under Secretary of the Navy for personal services (BuSandA symbol)

NPSC

abbreviation:  Naval Personnel Separation Center

NPSD

abbreviation:  naval Photographic Services Depot (Hollywood)

NPT

abbreviation:  Neuropsychiatry Technician

NPT

abbreviation:  Neuropsychiatry

NR

abbreviation:  Number

NR

abbreviation:  U.S. Naval Regulations

NR

abbreviation:  U.S. Naval Reserve

NRA

abbreviation:  Naval Radio Activity

NRAB

abbreviation:  Naval Reserve Aviation Base

NRAF

abbreviation:  Naval Reserve Auxiliary Field

NRB

abbreviation:  Naval Repair Base

NRB

abbreviation:  Navy Reservation Bureau

NRD

abbreviation:  Office of Naval Research and Development

NRDFS

abbreviation:  Naval Radio Direction Finder Service

NRES

abbreviation:  Naval Receiving Station

NRL

abbreviation:  naval Research laboratory

NRLO

abbreviation:  Royal Naval Liaison Officer

NRMC

abbreviation:  Naval Records Management Center

NRMS

abbreviation:  Naval Reserve Midshipmen’s School

NROTC

abbreviation:  Naval Reserve Officer Training Corps

NRPB

abbreviation:  National Research Planning Board

NRPB

abbreviation:  National Resources Planning Board

NRPIO

abbreviation:  Naval Registered Publications Issuing Office

NRPM

abbreviation:  Non-Register Publications Memoranda

NRS

abbreviation:  Naval Radio Station

NRS

abbreviation:  Navy Recruiting Station

NRS

abbreviation:  Navy Relief Society

NRT

abbreviation:  Vessels assigned Naval Districts for training Naval Reserves

NS&T

abbreviation:  Naval Science and tactics

NS

abbreviation:  Naval Station

NS

abbreviation:  Nimbostratus

NSA

abbreviation:  Naval Supply Account

NSA

abbreviation:  Navy Stock Account

NSB

abbreviation:  Naval Submarine Base

NSC

abbreviation:  Naval Supply Center

NSCF

abbreviation:  Naval Small Craft Facilities

NSD

abbreviation:  Naval Supply Depot

NSDA

abbreviation:  Naval Supply Depot Annex

NSF

abbreviation:  Naval Stock Fund

NSHO

abbreviation:  Naval Service Headquarters, Ottawa

NSI

abbreviation:  National Service Life Insurance

NSMG&A

abbreviation:  Naval School of Military Government and Administration

NSMG

abbreviation:  Naval School of Military Government

NSPD

abbreviation:  Naval Shore Patrol Detachment

NSRS

abbreviation:  Naval Supply Radio Station

NSU

abbreviation:  Naval Scout Unit

NSY

abbreviation:  Naval Shipyard

NSYd

abbreviation:  Naval Shipyard

NT&DC

abbreviation:  Naval Training and Distribution Center

NT

abbreviation:  Naval Training

NTC

abbreviation:  Naval Training Center

NTE

abbreviation:  Navy Teletypewriter Exchange (now NTX)

NTI

abbreviation:  Naval Travel Instructions

NTORS

abbreviation:  Naval Torpedo Station

NTS

abbreviation:  Naval Target Sub-division (G-2, SHAEF)

NTS

abbreviation:  Naval Torpedo Station

NTS

abbreviation:  Naval Training School

NTS

abbreviation:  Naval Training Station

NTS

abbreviation:  Naval Transportation Service

NTSch

abbreviation:  Naval Training School

Ntsp

abbreviation:  Purchases by Bureau of Supplies and Accounts for the Bureau of Naval Personnel (BuSandA symbol)

NTTC

abbreviation:  Naval Technical Training Center

NTTR

abbreviation:  Naval Torpedo Testing Range

NTU

abbreviation:  Naval Training Unit

NTX

abbreviation:  Navy Teletypewriter System (previously NTE)

Number three smoking black

orders:  The smoke watch reports that boiler #3 is making black smoke.

NUSL

abbreviation:  Naval Underwater Sound Laboratory

NW

abbreviation:  Northwest

NWB

abbreviation:  New War Department Building

NWC

abbreviation:  Naval War College

NWF

abbreviation:  Naval Working Fund

NWI

abbreviation:  Netherlands West Indies

NWLB

abbreviation:  National War Labor Board

NWSF

abbreviation:  Northwest Sea Frontier

Nxs

abbreviation:  Contract for BuSandA; written by BuSandA (BuSandA symbol)

Nxss

abbreviation:  Contract for BuShips; written by BuSandA (BuSandA symbol)

NY

abbreviation:  Navy Yard

NY

abbreviation:  Navy Yard

NY

abbreviation:  New York (Navy Yard)

NY

abbreviation:  New York

NYA

abbreviation:  National Youth Administration

NYAL

abbreviation:  National Yugoslav Army of Liberation

NYBos

abbreviation:  Navy Yard Boston

NYCharl

abbreviation:  Navy Yard Charleston

NYD, NYd or NY

abbreviation:  Navy Yard

NYK or Nyk

abbreviation:  New York, New York

NykGrp

abbreviation:  New York Group

NYMI

abbreviation:  Navy Yard Mare Island

NYNor

abbreviation:  Navy Yard Norfolk

NYNyk

abbreviation:  Navy Yard New York

NYPE

abbreviation:  New York Port of Embarkation

NYPH

abbreviation:  Navy Yard Pearl Harbor

NYPhil

abbreviation:  Navy Yard Philadelphia

NYPort

abbreviation:  Navy Yard Portsmouth, New Hampshire

NYPS

abbreviation:  Navy Yard Puget Sound (Bremerton)

NYS

abbreviation:  New York Shipbuilding Company

NYWash

abbreviation:  Navy Yard Washington (D.C.)

NZ

abbreviation:  New Zealand

NZLO

abbreviation:  New Zealand Liaison Officer

NZNB

abbreviation:  New Zealand Naval Board (Wellington)

NZSeaFron

abbreviation:  New Zealand Sea Frontier

O-V(RS)

abbreviation:  USNR designation for ordnance officers, commissioned and warrant, including radio electricians, qualified for specialist duties. This classification was abolished in September 1944 and replaced by the proper aviation or engineering classification with the suffix "T".

O-V(S)

abbreviation:  USNR designation for ordnance officers, commissioned and warrant, including gunners and torpedomen, qualified for specialist duties. This classification was abolished in September 1944 and replaced by one of the following: (D), (D)L, (S), S(O), or S(O) with proper numeral indicating particular specialty within ordnance.

O. D.

blueprints:  Outside Diameter.

O. T.

blueprints:  Oil Tight.

O/C

abbreviation:  Officer-in-Charge (Army)

O&A Date

abbreviation:  Oath and Acceptance Date

O&LS

abbreviation:  Ocean and Lake Surveys (Navy) (appropriation title)

O&OS

abbreviation:  Ordnance and Ordnance Stores, Navy (appropriation title)

O

abbreviation:  First letter in the Navy aircraft designation, indicating an observation plane

O

abbreviation:  Horizontal Opposed (aircraft engine)

O

abbreviation:  Lockheed Aircraft Corporation (manufacturer’s symbol)

O

abbreviation:  Officer of Operations (USCG)

O

abbreviation:  Organized Naval Reserve

O1

abbreviation:  Organized Naval Reserve Seagoing

O2

abbreviation:  Organized Naval Reserve Aviation

OAA

abbreviation:  Radar Test Equipment

OAD

abbreviation:  Officers’ Accounts Division

oakum

nautical:  A substance made from soft vegetable fibre such as hemp and jute impregnated with pine tar. It is principally used for calking the planking on wood decks of steel vessels and for calking all the planking on wood ships where watertightness is desired. It is also for calking around pipes.

OAM

abbreviation:  Orthopedic Appliance Mechanic

OAN

abbreviation:  Aids to Navigation Division (USCG)

OANDOS

abbreviation:  Ordnance and Ordnance Stores (USCG)

OAP

abbreviation:  Observation amphibian plane (USCG)

Oars

orders:  An order to stop pulling temporarily and to lay on oars.

OAS

abbreviation:  Occupied Areas Section (Military Government)

OATC

abbreviation:  Oceanic Air Traffic Center

OATC

abbreviation:  Overseas Air Traffic Control

OAV

abbreviation:  Aviation Division (USCG)

OB

abbreviation:  Operating Base

OB

abbreviation:  Operational Base

OB

abbreviation:  Ordnance Battalion

OB

abbreviation:  Ordnance Board

OBB

abbreviation:  Old Battleship

OBJ

abbreviation:  Radar training device

Oboe

abbreviation:  "O" in the phonetic alphabet

OBR

abbreviation:  Office of Budget and Reports

OBS

abbreviation:  Observatory

ObsRon

abbreviation:  Observation Squadron

OBSY

abbreviation:  Observatory

OC

abbreviation:  Communications Division (USCG)

OC

abbreviation:  Office of Censorship

OC

abbreviation:  Officer Candidate (Army)

OC

abbreviation:  Officer Commanding (USMC)

OCAS

abbreviation:  Officer-in-Charge of Armament Supply

Occ

abbreviation:  Occulting

OCD

abbreviation:  Officer of Civilian Defense

OCE

abbreviation:  Officer Conducting the Exercise

OCJ

abbreviation:  Radar Training Device

OCL

abbreviation:  Old Light Cruiser

OCL

abbreviation:  Ordnance Circular Letters

OCNPR

abbreviation:  Operation and Conservation of Naval Petroleum Reserves (appropriation title)

OCR

abbreviation:  Office of Civilian Requirements (WPB)

OCS

abbreviation:  Office of Contract Settlement

OCS

abbreviation:  Officer Candidate School (Army)

OCSigO

abbreviation:  Office of the Chief Signal Officer (Army)

OCT

abbreviation:  Office of the Chief of Transportation (Army)

OCV

abbreviation:  Old Aircraft Carrier

OD

abbreviation:  Officer-of-the-Day

OD

abbreviation:  Ordnance Data (inspection and test data)

ODD

abbreviation:  Old Destroyer

ODP

abbreviation:  Organized Reservists in drill pay status

ODT

abbreviation:  Office of Defense Transportation

OEG

abbreviation:  Operations Evaluation Group

OEM

abbreviation:  Officer of Emergency management

OEW

abbreviation:  Office of Economic Warfare

OF

abbreviation:  Office(r)

OFEA

abbreviation:  Office of Foreign Economic (Lend-Lease) Administration

OFEC

abbreviation:  Office of Foreign Economic Coordination

OFERRA

abbreviation:  Office of Foreign Economic Relief and Rehabilitation Administration

Off

abbreviation:  Office(r)

OffNavHist

abbreviation:  Office of Naval History

offsets

nautical:  A term used by draftsmen and loftsmen for the coordinates in ship curves. Also applied to joggles in plates and shapes of structural shapes.

OFLC

abbreviation:  Office of Foreign liquidation Commission

OFP

abbreviation:  Operating Force Plan

OFRR

abbreviation:  Office of Foreign Relief and Rehabilitation

OFRRO

abbreviation:  Office of Foreign Relief and Rehabilitation Operations

OFS

abbreviation:  Office of Field Service (OSRD)

OFT

abbreviation:  Operational Flight Trainer

OFU

abbreviation:  Floating Units Division (USCG)

OG

abbreviation:  Officer of the Guard (Army)

OGC

abbreviation:  Office of General Counsel

ogee

nautical:  A molding with a concave and convex outline like an S.

OGR

abbreviation:  Ordnance, Gunnery and Readiness Division (USCG)

OGU

abbreviation:  Outgoing Unit

OHI

abbreviation:  Ordnance Handling Instructions

OIAA

abbreviation:  Office of Inter-American Affairs

OIC

abbreviation:  Officer-in-Charge

OIL

abbreviation:  Ordnance Investigation Laboratory

oiltight

nautical:  Having the property of resisting the passage of oil.

OinC or OINC

abbreviation:  Officer-in-Charge

OinCABCCTC

abbreviation:  Officer-in-Charge, Advanced Base Combat Communication Training Center (Pearl Harbor)

OIR

abbreviation:  Office of Industrial Relations (previously SECP)

Oka

abbreviation:  Japanese rocket-propelled one man guided missile; also called Cherry Blossom

OKLA

abbreviation:  Oklahoma

old man

nautical:  A heavy bar of iron or steel bent in the form of a Z used to hold a portable drill. One leg is bolted or clamped to the work to be drilled and the drill head is placed under the other leg which holds down the drill to its work.

OLLA

abbreviation:  Office of Lend-Lease Administration

OLP

abbreviation:  Observation landplane (USCG)

OLP

abbreviation:  Office of Labor Production (WPB)

OM

abbreviation:  Officer Messenger

OM

abbreviation:  Order of Merit

OME

abbreviation:  Office of Management Engineer

OMGUS

abbreviation:  Office of Military Government United States

OMI

abbreviation:  Ordnance Modifications Instructions

OMM(S)C

abbreviation:  Officer Messenger Mail (Sub) Center

OMM

abbreviation:  Officer Messenger Mail

OMMC

abbreviation:  Officer Messenger Mail Center

OMPUS

abbreviation:  Official Munitions Production United States

on board

nautical:  On or in a ship; aboard.

On deck the starboard watch (or section) relieve the wheel and lookouts

orders:  An order to change a watch.

on deck

nautical:  On the weather deck, in the open air.

On target or, Target

orders:  Reported by director, trainer, and pointer when they are on target.

On the double

orders:  On the run, quickly. Double time.

ON

abbreviation:  Liverpool to New York, fast (routing designation)

ONBOSUB

Bureau of Personnel Condensation Code:  And on board a submarine of that (fleet, force, squadron, or division, as appropriate)

ONBOWOOM

Bureau of Personnel Condensation Code:  For duty on board that vessel when placed in commission

ONBOWSERV

Bureau of Personnel Condensation Code:  For duty on board that vessel when placed in service

One thousand yards to go

orders:  Information from the bridge as to the distance to go before anchoring.

ONH

abbreviation:  Office of Naval History

ONI

abbreviation:  Office of Naval Intelligence

ONM

abbreviation:  Liverpool to New York, medium (routing designation)

ONOP

abbreviation:  Office of Naval Officer Procurement

ONOP

abbreviation:  Officer-in-Charge, Branch Office of Naval Officer Procurement

ONR

abbreviation:  Office of naval Research (formerly Office of Research and Inventions) (ORI))

ONS

abbreviation:  Liverpool to Halifax, slow (routing designation)

OOD

abbreviation:  Officer-of-the-Deck

Op 1 (2, etc.)

abbreviation:  Division 1 (2, etc.) of Office of CNO

OP Plan

abbreviation:  Operating Plan

Op-Com

abbreviation:  Operations-Communications

Op.

blueprints:  Operator

Op(s)ArmyJAG

abbreviation:  Opinion(s) of the Army Judge Advocate General

OP&I

abbreviation:  Office of Patents and Inventions

OP&M

abbreviation:  Office of Procurement and Material

OP

abbreviation:  Observation post (USMC)

OP

abbreviation:  Office of Chief of Naval Operations

OP

abbreviation:  Operating; Operator; Operation(al)

OP

abbreviation:  Operational Priority

OP

abbreviation:  Ordnance Pamphlets

OP

abbreviation:  Ordnance Personnel

OPA

abbreviation:  Office of Price Administration

OpAttyGen

abbreviation:  Opinion of the Attorney General

OPC

abbreviation:  Optician

OPD

abbreviation:  Operations Division (War Department, General Staff)

OpDevFor

abbreviation:  Operations Development Forces

Open (close) shutters

orders:  A command by Control to open (or close) the searchlight shutter.

Oper

abbreviation:  Operator

Opers

abbreviation:  Operations

OPET

abbreviation:  Organization, Personnel Equipment and Training (Group)

OpIntel

abbreviation:  Operational Intelligence

OPL

abbreviation:  Outpost Line (Army)

OPLR

abbreviation:  Outpost Line of Resistance (Army)

OPM

abbreviation:  Office of Production Management

OPM

abbreviation:  Optometrist

OPMG

abbreviation:  Office of Provost Marshal General (also PMGO)

OpNav

abbreviation:  Office of the Chief of Naval Operations; short title: CNO

OPR

abbreviation:  Office of Public Relations

Opr

abbreviation:  Operator

OPS

abbreviation:  Operations

OPT

abbreviation:  Optician

OpTra

abbreviation:  Air Operational Training

OPU

abbreviation:  Overseas Plexiglas Unit

OQMG

abbreviation:  Office of the Quartermaster General (Army)

OR

abbreviation:  Operations Room

OR

abbreviation:  Orange, Texas

ORA

abbreviation:  Organization de Resistance de L’Armée (France)

Orange

abbreviation:  War plans for use in war against Japan

ORC

abbreviation:  Officers’ Reserve Corps (Army)

ORD DIS

abbreviation:  Ordinary Discharge

Ord Eng

abbreviation:  Ordnance Engineering

ORD

abbreviation:  Office of Rubber Director (WPB)

Ord

abbreviation:  Orderly

ORD

abbreviation:  Ordnance

ORDALT

abbreviation:  Ordnance Alterations

ORDC

abbreviation:  Ordnance Research and Development Center (Aberdeen Proving Grounds, Maryland)

ORDCAN

Bureau of Personnel Condensation Code:  Orders (identified by date or dispatch reference numbers following) are hereby cancelled

ORDCOR

Bureau of Personnel Condensation Code:  Orders (identified by date or dispatch reference numbers following) are hereby corrected

ORDMOD

Bureau of Personnel Condensation Code:  Orders (identified by date or dispatch reference numbers following) are hereby modified

ORE

abbreviation:  Oregon

ORG

abbreviation:  Operations Research Group

ORI

abbreviation:  Office of Research and Inventions; now, Office of Naval Research ONR

Orig

abbreviation:  Original

ORIG

abbreviation:  Originator

orlop deck

nautical:  The term formerly applied to the lowest deck in a ship; now practically obsolete.

ORT

abbreviation:  Operating Room Technician

OS&D or OS/D

abbreviation:  Over, Short, and Damaged (Report) (Army)

OS

abbreviation:  First two letters in the Navy aircraft designation, indicating an observation-scouting plane

OS

abbreviation:  Ordnance Specifications

OS2N

abbreviation:  "Kingfisher"; single-engine Navy scout-observation (VSO), seaplane, manufactured by Naval Aircraft Factory

OS2U

abbreviation:  "Kingfisher"; single-engine Navy scout-observation (VSO), landplane and seaplane, manufactured by Vought -Sikorsky

Osc

abbreviation:  Oscillator

OSC

abbreviation:  Own ship’s course

Oscar

glossary:  Single engine Nakajima Ki-43 fighter-bomber.

OSFCW

abbreviation:  Office of Solid Fuels Coordinator

OSigO

abbreviation:  Office of Chief Signal Officer

OSRD

abbreviation:  Office of Scientific Research and Development

OSS

abbreviation:  Office of Strategic Services; now, SSU

OSS

abbreviation:  Old Submarine

OSTD

abbreviation:  Ordnance Standards

OSU

abbreviation:  Shore Units Division (USCG)

OSW

abbreviation:  Office of Secretary of War

OT

abbreviation:  Aruba or Curaçao to Northwest Africa (routing designation)

OT

abbreviation:  Curaçao to Trinidad (routing designation)

OT

abbreviation:  New York to Netherlands West Indies (routing designation)

OT

abbreviation:  Occupational Therapy Technician

OTC

abbreviation:  Officer-in-Tactical Command

OTC

abbreviation:  Officers’ Training School

OTCLant

abbreviation:  Fleet Operational Training Command, Atlantic (usually COTCLant)

OTCPac

abbreviation:  Fleet Operational Training Command, Pacific (usually COTCPac)

OTI

abbreviation:  Ordnance Technical Instructions

OTU

abbreviation:  Operational Training Unit

OUSW

abbreviation:  Office of the Under Secretary of War

Out Bd.

blueprints:  Out Board.

Out oars

orders:  To rig out the oars in the rowlocks ready for pulling.

outboard profile

nautical:  A plan showing the longitudinal exterior of the starboard side of a vessel, together with all deck erections, stacks, masts, yards, rigging, rails, etc.

outboard

nautical:  Away from the center toward the outside; outside the hull.

Over the side all side cleaners

orders:  Two or more side cleaners are detailed form all deck divisions to keep the ship’s sides clean.

overboard

nautical:  Outside, over the side of a ship into the water.

overhang

nautical:  That portion of a vessel’s bow or stern which projects beyond a perpendicular at the waterline.

overhaul

nautical:  To repair or put in proper condition for operation; to overtake or close up the distance between one ship and another ship moving in the same direction.

OVPD

abbreviation:  Overpaid

OWI

abbreviation:  Office of War Information

OWM&R

abbreviation:  Office of War Mobilization and Reconversion

OWM

abbreviation:  Office of War Mobilization

OWU

abbreviation:  Office of War Utilities (WPB)

OY-#

abbreviation:  "Sentinel"; observation-scout (VOS), manufactured by Consolidated-Vultee

P Boat

abbreviation:  Patrol Bomber (PBY)

P. Dk.

blueprints:  Poop Deck.

P. Mk.

blueprints:  Pitch Mark.

P/A

abbreviation:  Pilotless Aircraft

P&A

abbreviation:  Procurement and Assignment

P≈D Sec

abbreviation:  Pioneer and Demolition Section (Army)

P&E

abbreviation:  Procurement & Expedition

P&E

abbreviation:  Progress & Expedity

P&PW

abbreviation:  Publicity and Psychological Warfare

P&SI

abbreviation:  Pay and Supply Instructions (USCG)

P&SNP

abbreviation:  Pay and Subsistence of Naval personnel (appropriation title)

P&W

abbreviation:  Pratt and Whitney (airplane engine)

P

abbreviation:  First letter in the Navy aircraft designation, indicating a patrol plane

P

abbreviation:  Fixed provision for photographic reconnaissance missions (suffix to plane designation); as, F6F-5P

P

abbreviation:  Office of Personnel (USCG)

P

abbreviation:  P-V Engineering Forum, Inc. (Helicopter) (manufacturer’s symbol)

P

abbreviation:  Pilot

P

abbreviation:  Piper Aircraft corporation (Glider) (manufacturer’s symbol)

P

abbreviation:  Professional (Civil Service employees designation)

P

abbreviation:  Spartan Aircraft Co. (manufacturer’s symbol)

P2V-2

abbreviation:  "Neptune"; twin-engine Navy patrol-bomber (VPB(HL)), landplane, manufactured by Lockheed

P2Y-2-3

abbreviation:  Twin-engine Navy patrol, sesquiplane (VF), manufactured by Consolidated

P4Y-1

abbreviation:  Twin-engine Navy patrol plane (VP), monoplane, manufactured by Consolidated

PA/SO

abbreviation:  Port Anti-Submarine Officer

PA

abbreviation:  Attack Transport (contraction of APA)

PA

abbreviation:  Panama

PA

abbreviation:  Pennsylvania

PA

abbreviation:  Permanent Appointment

PA

abbreviation:  Philadelphia (Navy Yard)

PA

abbreviation:  Port Agency (Army)

PA

abbreviation:  Public Address

PAA

abbreviation:  Pan-American Airways

PAB

abbreviation:  Price Adjustment Board

PAB

abbreviation:  Priorities Allotment Board

PAC

abbreviation:  Pacific

PAC

abbreviation:  Political Action Committee

PAC

abbreviation:  Program Adjustment Committee

PacAdv

abbreviation:  Pacific Fleet Advance Headquarters (Guam)

PacCall

abbreviation:  Pacific Fleet Calls (radio call signs)

PacCom

abbreviation:  Pacific Fleet Communications Instructions

PacFleet

abbreviation:  Pacific Fleet

PacFlt

abbreviation:  Pacific Fleet

PacHedPearl

abbreviation:  Pacific Headquarters, pearl Harbor, T.H.

packing

nautical:  A general term applied to a yielding material employed to effect a tight joint, also called gasket material.

PaCorNaLog

abbreviation:  Pacific Coast Coordinator of Naval Logistics

PACREP

abbreviation:  Port Activities Report

PacResFlt

abbreviation:  Pacific Reserve Fleet

PAct

abbreviation:  Acting Pay Clerk

PACUSA

abbreviation:  Pacific Air Command, U.S. Army

pad eye

nautical:  A fitting having one or more eyes integral with a plate or base to provide ample means of securing and to distribute the strain over a wide area. The eyes may be either "worked" or "shackle." Also known as lug pads, hoisting pads, etc.

PAD

abbreviation:  Pilotless Aircraft Division

PAD

abbreviation:  Pontoon Assembly Detachment

PAGTU

abbreviation:  Pan-American Ground Training Unit

painter

nautical:  A length of rope secured at the bow of a small boat for use in towing or for making it fast. Called also a bow-fast.

PAL

abbreviation:  Prisoner-at-Large

palm

nautical:  The fluke, or more exactly, the flat inner surface of the fluke of an anchor; a sailmaker’s protector for the hand, used when sewing canvas; a flat surface at the end of a strut or stanchion for attachment to plating, beams, or other structural member.

PANAIR

abbreviation:  Panama Air Lines

PANDS

abbreviation:  Pay and Supply (USCG)

PanSeaFron

abbreviation:  Panama Sea Frontier

Pant. Stg’r.

blueprints:  Panting Stringer.

panting beams

nautical:  The transverse beams that tie the panting frames together.

panting frames

nautical:  The frames in the fore peak, usually extra heavy to withstand the panting action of the shell plating.

panting

nautical:  The pulsation in and out of the bow and stern plating as the ship alternately rises and plunges deep into the water.

PAP

abbreviation:  Patrol Amphibian Plane

Par

abbreviation:  Parsons design (ship engines)

Para

abbreviation:  Parachute; Parachutist

Para

abbreviation:  Paragraph

Parallax range

orders:  Set parallax range in yards.

paravane

nautical:  The paravane is a special type of water kite which, when towed with wire rope from a fitting on the forefoot of a vessel, operates to ride out from the ship’s side and deflect mines which are moored in the path of the vessel, and to cut them adrift so that they will rise to the surface where they may be seen and destroyed.

parcelling

nautical:  Narrow strips of canvas which are tarred and wound around ropes, following the lay and overlapping in order to shed water. The parcelling is applied after worming, preparatory to serving.

PAREC

abbreviation:  Pay Record

PAREN

abbreviation:  Parenthesis

partners

nautical:  Similar pieces of steel plate, angles, or wood timbers used to strengthen and support the mast where it passes through a deck, or placed between deck beams under machinery bed plates for added support.

PARU

abbreviation:  Photographic and Reproduction unit

PAS

abbreviation:  Passage(nger)

PAS

abbreviation:  Physically on board as a prisoner

Pass stopper

orders:  To hold line with a stopper or to reeve and secure a stopper.

PASU

abbreviation:  Patrol Aircraft Service Unit

PAT

abbreviation:  Patrol

PAT

abbreviation:  Physically on board for treatment; sot ship’s company

PAT

abbreviation:  Property and Accounting Technician (Medical)

PatBomRon

abbreviation:  Patrol Bombing Squadron

PatFor

abbreviation:  patrol Force

PatRon

abbreviation:  Patrol Squadron

PatSU or Patsu

abbreviation:  Patrol Aircraft Service Unit

PatWing

abbreviation:  Patrol Wing; now, Fleet Air Wing

PatWingLantFleet

abbreviation:  Patrol Wing Atlantic Fleet

PatWingLantFlt

abbreviation:  Patrol Wing Atlantic Fleet

PatWingScoFor

abbreviation:  Patrol Wings Scouting Force

Patx

abbreviation:  Patuxent River

PAU

abbreviation:  Pilotless Aircraft Unit

paulin

nautical:  A term applied to a pliable canvas hatch cover, and also to pieces of canvas used as a shelter for workmen or as a cover for deck equipment.

PAV

abbreviation:  Pay Adjustment Voucher

PAW

abbreviation:  Petroleum Administration for War

pawl

nautical:  A term applied to a short piece of metal so hinged as to engage in teeth or depressions of a revolving mechanism for the purpose of preventing recoil. Fitted to capstans, windlasses, etc. Also called Pall.

PAY

abbreviation:  Paymaster

PAY

abbreviation:  Payment

paying

nautical:  The operation of filling the seams of a wood deck, after the calking has been inserted, with pitch, marine glue, etc. Also applied to the operation of slackening away on a rope or chain.

PayMarCorps

abbreviation:  Paymaster, Marine Corps

PB-1W

abbreviation:  "Flying Fortress"; four-engine Navy patrol plane, manufactured by Boeing

PB

abbreviation:  First two letters in the Navy aircraft designation, indicating a patrol-bombing plane

PB2B-#

abbreviation:  "Catalina"; twin-engine Navy patrol-bomber (VPB(MS)), seaplane, manufactured by Boeing (Canada)

PB2M-1R

abbreviation:  "Mars"; four-engine Navy transport (VR(HS)), seaplane, manufactured by Martin

PB2Y-2-3

abbreviation:  "Coronado"; four-engine Navy patrol-bomber (VPB), manufactured by Consolidated-Vultee

PB2Y-3R

abbreviation:  Four-engine Navy transport (VR(HS)), manufactured by Consolidated-Vultee

PB2Y-5

abbreviation:  "Coronado"; four-engine Navy patrol-bomber (VPB(HS)), seaplane, manufactured by Consolidated-Vultee

PB2Y-5R

abbreviation:  "Coronado"; four-engine Navy transport (VR(HS)), seaplane, manufactured by Consolidated-Vultee

PB4Y-1-1P

abbreviation:  "Liberator"; four-engine Navy patrol-bomber (VPB), landplane, manufactured by Consolidated-Vultee

PB4Y-12

abbreviation:  "Liberator"; four-engine Navy transport (VR(HL)), landplane, manufactured by Consolidated-Vultee

PB4Y-2-2C

abbreviation:  "Privateer"; four-engine Navy patrol-bombers (VPB(HL)), landplane, manufactured by Consolidated- Vultee

PBJ-#

abbreviation:  "Mitchell"; twin-engine Navy patrol-bomber (VPB(MS)), manufactured by North American

PBM-1

abbreviation:  "Mariner"; twin-engine Navy patrol-bomber (VPB), manufactured by Martin

PBM-3-5

abbreviation:  "Mariner"; twin-engine Navy patrol-bomber (VPB(MS)), seaplane, manufactured by Martin

PBM-3R

abbreviation:  "Mariner"; twin-engine Navy transport (VR(MS)), seaplane, manufactured by Martin

PBN-#

abbreviation:  "Nomad"; twin-engine Navy patrol-bomber (VPB(MS)), seaplane, manufactured by Naval Aircraft Factory

PBO-#

abbreviation:  "Hudson"; twin-engine Navy patrol-bomber (VPB), landplane, manufactured by Lockheed

PBS

abbreviation:  Peninsular Base Section

PBX

abbreviation:  Private Branch Exchange (telephone switchboard)

PBY-#

abbreviation:  "Catalina"; twin-engine Navy patrol-bomber (VPB), manufactured by Consolidated-Vultee

PC(C)

abbreviation:  Submarine Chaser (173’) (Control)

PC

abbreviation:  Civilian Personnel Division (USCG)

PC

abbreviation:  Patrol Vessel, Submarine Chaser (173’)

PC

abbreviation:  Pay Clerk

PC

abbreviation:  Pharmacy Corps (Army)

PCA

abbreviation:  Personal Cash Allowance

PCC

abbreviation:  Postal Concentration Center

PCCNL

abbreviation:  Pacific Coast Coordinator of Naval Logistics

PCE(C)

abbreviation:  Patrol Vessel, Escort (180’) (Control)

PCE(R)

abbreviation:  Patrol Craft, Escort (Rescue) (180’)

PCE

abbreviation:  Patrol Vessel, Escort (180’)

PCFO

abbreviation:  Position Classification Field Office

PClk

abbreviation:  Pay Clerk

PCmdr

abbreviation:  Post Commander (USMC)

PCO

abbreviation:  Prospective Commanding Officer

PCS

abbreviation:  Patrol Vessel, Submarine Chaser (136’) (Control)

PCS

abbreviation:  Position, Course, and Speed

PCT

abbreviation:  Pharmacy and Chemistry Technician

PD

abbreviation:  Demobilization Division (USCG)

PD

abbreviation:  Port Director

PD

abbreviation:  Port of Debarkation

PD

abbreviation:  Priority Directive

PDD

abbreviation:  Physical Damage Division

Pdr

abbreviation:  Pounder (armament)

PE

abbreviation:  Ensiled Personnel Division (USCG)

PE

abbreviation:  Patrol Vessel, Eagle (Eagle Boat)

PE

abbreviation:  Pensacola, Florida

PE

abbreviation:  Pistol Expert

PE

abbreviation:  Port of Embarkation

PE

abbreviation:  Post Exchange (USMC)

peak tank

nautical:  Compartments at the extreme fore and aft ends of the ship for any use either as void spaces or as trimming tanks. When used for the latter purpose, water is introduced to change the trim of the vessel.

peak, fore and after

nautical:  The space at the extreme bow or stern of a vessel below the decks.

Pearl

abbreviation:  Pearl Harbor, T.H.

PEC

abbreviation:  Production Executive Committee

PEDC

abbreviation:  Personal Effects Distribution Center

peen

nautical:  The lesser head of a hammer, and is termed ball when it is spherical, cross when in the form of a rounded edge ridge at right angles to the axis of the handle, and straight when like a ridge in the plane of the handle.

peen

nautical:  To round off or shape an object, smoothing out burrs and rough edges.

pelican hook

nautical:  A type of quick releasing hook used at the lower end of shrouds, on boat grips, and in similar work where fast work may be necessary.

pelorus

nautical:  A navigational instrument, similar to a binnacle and mariner’s compass, but without a magnetic needle, used in taking bearings, especially when the object to be sighted is not visible from the ship’s compass. Also known as a Dumb Compass.

PENN

abbreviation:  Pennsylvania

PEO

abbreviation:  Prospective Engineer Officer

PERGRA

Bureau of Personnel Condensation Code:  Permission granted

period of roll

nautical:  The time occupied in performing one double oscillation or roll of a vessel as from port to starboard and back to port.

periscope

nautical:  An instrument used for observing objects from a point below the object lens. It consists of a tube fitted with an object lens at the top, an eye piece at the bottom and a pair of prisms or mirrors which change the direction of the line of sight. Mounted in such a manner that it may be rotated to cover all or a part of the horizon or sky and fitted with a scale graduated to permit of taking bearings, it is used by submarines to take observations when submerged.

Permission is granted to blow tubes on all steaming boilers

orders:  Permission is given by the Officer of the Deck to the engineers to remove soot (by blowing) when the wind is favorable and when authorized by the officer in tactical command.

Permission is granted to remove stack cover

orders:  Permission is granted by the Officer of the Deck to remove stack cover.

PERNOGRA

Bureau of Personnel Condensation Code:  Permission not granted

Perp.

blueprints:  Perpendicular.

PERS TRAN

abbreviation:  Personal Transportation

Pers&TraComd

abbreviation:  Personnel and Training Command

PERS

abbreviation:  Personnel

PersClfn

abbreviation:  Personnel Classification

PersD

abbreviation:  personnel Department (USMC)

PERSOF

abbreviation:  Personnel Officer

PersSepCent

abbreviation:  Personnel Separation Center

PET

abbreviation:  Petroleum

Peter

abbreviation:  "P" in the phonetic alphabet

PetRes

abbreviation:  Petroleum Reserves

PetSec

abbreviation:  Petroleum Section (Allied Force Headquarters)

PF

abbreviation:  Patrol Vessel, Frigate

PFC

abbreviation:  Private First Class

PFCO

abbreviation:  Position Field Classification officer

PG

abbreviation:  Patrol Vessel, Gunboat

PG

abbreviation:  Pay Group

PG

abbreviation:  Photogrammetry

PG

abbreviation:  Pilottown to Galveston (routing designation)

PG

abbreviation:  Post Graduate

PGC

abbreviation:  Persian Gulf Command (US Army)

PGC

glossary:  Per Gyro Compass. Indicates a gyro compass reading, usually coinciding with True direction.

PGM

abbreviation:  Patrol Vessel, Motor Gunboat

PH-2-3

abbreviation:  Twin-engine Coast Guard patrol (VP), biplane, manufactured by Hall

PH

abbreviation:  Pearl Harbor, T.H.

PH

abbreviation:  Plane Handler

PH

abbreviation:  Purple Heart

Phantom

abbreviation:  Radar decoy

Phar

abbreviation:  Pharmacist

Pharm

abbreviation:  Pharmacist

PHB

abbreviation:  Public Health Service Building

PHIB

abbreviation:  Amphibian; Amphibious

PhibCorPac

abbreviation:  Amphibious Corps Pacific Fleet

PhibCorps

abbreviation:  Amphibious Corps

PhibDet

abbreviation:  Amphibious Detachment

PhibdetInd

abbreviation:  Amphibious Detachment India

PhibEu

abbreviation:  Amphibious Forces Europe

PhibFor

abbreviation:  Amphibious Force

PhibGroup

abbreviation:  Amphibious Group

PhibLant

abbreviation:  Amphibious Forces Atlantic Fleet

PhibNAW

abbreviation:  Amphibious Forces Northwest African Waters

PHIBOBS

Bureau of Personnel Condensation Code:  Amphibious Operations

PhibPac

abbreviation:  Amphibious Forces Pacific Fleet

PhibsEu

abbreviation:  Amphibious Forces Europe

PhibsForPac

abbreviation:  Amphibious Forces Pacific Fleet

PhibsLant

abbreviation:  Amphibious Forces Atlantic Fleet

PhibsPac

abbreviation:  Amphibious Forces Pacific Fleet

PhibsTraPac

abbreviation:  Training Command Amphibious Forces, U.S. Pacific Fleet

PhibsUKay

abbreviation:  Amphibious Bases United Kingdom

PhibTra

abbreviation:  Training Command Amphibious Forces

PhibTraBase

abbreviation:  Amphibious Training Base

PhibTrainLant

abbreviation:  Training Command Amphibious Forces, Atlantic Fleet

PhibTrainPac

abbreviation:  Training Command Amphibious Forces, U.S. Pacific Fleet

PhibTraLant

abbreviation:  Training Command Amphibious Forces, U.S. Atlantic Fleet

PHIBTRANS

Bureau of Personnel Condensation Code:  Amphibious Transport

PhibTraPac

abbreviation:  Training Command Amphibious Forces, U.S. Pacific Fleet

PhibTrBase

abbreviation:  Amphibious Training Base

PhibWarTraCen

abbreviation:  Amphibious Warfare Training Center

Phil

abbreviation:  Navy Yard, Philadelphia

PHIL

abbreviation:  Philippine

Phila

abbreviation:  Philadelphia, Pennsylvania

PhilaGrp

abbreviation:  Philadelphia Group

PhilSeaFron

abbreviation:  Philippine Sea Frontier

PhM

abbreviation:  Pharmacist’s Mate

PhMDP

abbreviation:  Pharmacist’s Mate, Dental Prosthetic Technician

PHNY

abbreviation:  Pearl Harbor Navy Yard

PHO

abbreviation:  Photographer

PHOAC

abbreviation:  Photographer’s Mate, Combat Aircrewman

PhoM

abbreviation:  Photographer’s Mate

PHONE

abbreviation:  Telephone

Phot

abbreviation:  Photographer

Photo

abbreviation:  Photograph(ic)

PHPC

abbreviation:  Post Hostilities Planning Committee

PHS

abbreviation:  Public Health Service

PHT

abbreviation:  Physical Therapy Technician

PHTH

abbreviation:  Pearl Harbor, Territory of Hawaii

Phys

abbreviation:  Physical

PI

abbreviation:  Philippine Islands

PI

abbreviation:  Pigeon Trainer

PIBALS

abbreviation:  Pilot Balloon Reports

PICAO

abbreviation:  Provisional International Civil Aviation Organization

Picket

abbreviation:  Advanced or distant radar guard ship

PICME

abbreviation:  Political Intelligence Center Middle East (GB)

Pict

abbreviation:  Picture

PID

abbreviation:  Political Intelligence Department (GB)

pillar

nautical:  A vertical member or column giving support to a deck. Also called a stanchion.

pilot house

nautical:  A house designed for navigational purposes. It is usually located forward of the midship section and so constructed as to command an unobstructed view in all directions except directly aft along the center line of the vessel where the smokestack usually interferes.

pin, belaying

nautical:  A small iron or tough wood pin, made with a head, shoulder, and shank. It is fitted in holes in a rail and is used in belaying or making fast the hauling parts of light running gear, signal halyards, etc.

ping jockeys

glossary:  Sonar operators.

pintles

nautical:  A term applied to the pins or bolts which hinge the rudder to the gudgeons on the stern post.

PIO

abbreviation:  Public Information Officer

Pip

abbreviation:  Displacement of radar trace caused by echo

Pipe down hammocks

orders:  Take hammocks to assigned billets, or let down bunks.

Pipe down, set the watch, 1st section

orders:  At Pipe Down just after getting underway, men fall out from quarters and continue ship’s work.

Pipe to breakfast (dinner or supper)

orders:  Go to chow. (Breakfast, dinner or supper).

pitch

nautical:  A term applied to the distance a propeller will advance during one revolution, the distance between the centers of the teeth of a gear wheel, the axial advance of one convolution of the thread on a screw, the spacing of rivets, etc. Also applied to pine tar, asphalt and coal pitch used in paying seams of a deck.

pitching

nautical:  The alternate rising and falling motion of a vessel’s bow in a nearly vertical plane as she meets the crests and troughs of the waves.

pitting

nautical:  The localized corrosion of iron and steel in spots, usually caused by irregularities in surface finish, and resulting in small indentations or pits.

PIU

abbreviation:  Photographic Interpretation Unit (USMC)

pivoting point

nautical:  That point during the progress of a launching at which the moment of buoyancy about the fore poppet equals the moment of the vessel’s weight. At this point the stern begins to lift and the vessel pivots about the fore poppet.

PK

abbreviation:  Press

PkHow

abbreviation:  Pack Howitzer (USMC)

PL

abbreviation:  Plain Language

PL

abbreviation:  Plastic Expert

PL

abbreviation:  Post Laundry (Army)

PL

abbreviation:  Public Information man

PL

abbreviation:  Public Law

plan

nautical:  A drawing prepared for use in building a ship.

planking

nautical:  Wood covering for decks, etc. The shell of wood boats.

Plat

abbreviation:  Platoon

platform

nautical:  A partial deck.

plating, shell

nautical:  The plating forming the outer skin of a vessel. In addition to constituting a watertight envelope to the hull, it contributes largely to the strength of the vessel.

PLC

abbreviation:  Platoon Leaders Class (USMC)

PLD

abbreviation:  Procurement Legal Division; later, Office of General Counsel (USCG)

plimsoll mark

nautical:  A mark painted on the sides of vessel designating the depth to which the vessel may, under the maritime laws, be loaded in different bodies of water during various seasons of the year.

PlLdr

abbreviation:  Platoon Leader (USMC)

PLS

abbreviation:  Please

PlSgt

abbreviation:  Platoon Sergeant

PLU

abbreviation:  Platoon Leaders Unit (USMC)

PLY

abbreviation:  Plymouth, England

PM

abbreviation:  Medical Division (USCG)

PM

abbreviation:  Patternmaker

PM

abbreviation:  Paymaster (USCG)

PM

abbreviation:  Portland, Maine

PM

abbreviation:  Post-Meridian

PM

abbreviation:  Postmaster

PM

abbreviation:  Prime Minister

PM

abbreviation:  Procurement and Material

PM

abbreviation:  Provost Marshal (Army)

PMG

abbreviation:  Paymaster General

PMG

abbreviation:  Provost Marshal General (Army)

PMGO

abbreviation:  Office of Provost Marshal General

PMKr

abbreviation:  Patternmaker

PMLO

abbreviation:  Principal Military Landing Offices (GB)

PMM

abbreviation:  Military morale Division (USCG)

PMS&T

abbreviation:  Professor of Military Science and Tactics (Army)

PMSGT

abbreviation:  Paymaster Sergeant (USMC)

PMSR

abbreviation:  Patternmaker, Ship Repair

PMSRP

abbreviation:  Patternmaker, Ship Repair, Patternmaker

PMT

abbreviation:  Medical Photography Technician

PNNCF

abbreviation:  Pacific Northern Naval Coastal Frontier

PNR

abbreviation:  Preliminary Negotiation Reports

PNS&T

abbreviation:  Professor of Naval Science and Tactics

PO

abbreviation:  Officer Personnel Division(USCG)

PO

abbreviation:  Petty Officer

PO

abbreviation:  Port Officer

PO

abbreviation:  Portsmouth, England

PO

abbreviation:  Post Office

POA

abbreviation:  Pacific Ocean Areas

POAHedPearl

abbreviation:  Pacific Ocean Areas Headquarters Pearl Harbor

POATSC

abbreviation:  Pacific Overseas Air Technical Service Command

POD

abbreviation:  Podiatrist

POE

abbreviation:  Port of Embarkation

Pointer (trainer) key fire

orders:  Each gun or turret is fired by its own pointer’s or trainer’s key.

POL

abbreviation:  Petrol Oil and Lubricants (GB)

polarity

nautical:  The property possessed by electrified bodies by which they exert forces in opposite directions. The current in an electrical circuit passes from the positive to the negative pole.

POM

abbreviation:  Preparation for Overseas Movements (Army)

pontoon

nautical:  A scow-shaped boat used in connection with engineering and military operations such as transporting men and equipment, bridge construction, supports for temporary bridges, salvage work, etc. Also applied to cylindrical air and watertight tanks or floats used in salvage operations.

POOD

abbreviation:  Permanent Officer of the Deck (Day)

poop

nautical:  The structure or raised deck at the after end of a vessel.

poppets

nautical:  Those pieces of timber which are fixed perpendicularly between the ship’s bottom and the bilgeways at the foremost and aftermost parts of the ship, to support it when being launched. They are parts of the cradle.

PORICH

Bureau of Personnel Condensation Code:  To the port in which activity designated may be

Port engine ahead standard

orders:  To achieve the speed previously determined as standard. Orders relative to speed and direction of engines are given in the following sequence:

1. designate engine or engines.
2. designate direction.
3. designate speed.

port flange

nautical:  See watershed.

port gangway

nautical:  An opening in the side plating, planking, or bulwark for the purpose of providing access through which people may board or leave the ship or through which cargo may be handled.

port lid

nautical:  See deadlight.

port, air

nautical:  See air port.

port

nautical:  The left-hand side of a ship when looking from aft forward. Also an opening.

porthole

nautical:  See air port.

Posit

abbreviation:  Position

Pot

abbreviation:  Potential

POT

abbreviation:  Potomac

PotAnn

abbreviation:  Potomac Annex (Navy Department)

PoTelCo

abbreviation:  Postal Telegraph Company

POW

abbreviation:  Powder

POW

abbreviation:  Prisoner of War

PP&NA

abbreviation:  Private Plants and Naval Activities

PP

abbreviation:  Public Property

PPC

abbreviation:  Partial Pay Card

PPC

abbreviation:  Patrol Pane Commander

PPF

abbreviation:  Parti Populaire Français

PPI

abbreviation:  Plan Position indicator (radar scope)

PPPC

abbreviation:  Petroleum Pool Pacific Coast

PPPI

abbreviation:  Precision Plan Position Indicator

PPPI

abbreviation:  Projection Plan Position Indicator

PPS

abbreviation:  Polish Socialist Party

PPSMEC

abbreviation:  Procurement, Precedence of Supplies, Material and Equipment Committee (JCB)

PQM

abbreviation:  Post Quartermaster (USMC)

PR/COM

abbreviation:  Vessels delivered in a partially completed status

PR

abbreviation:  Parachute Rigger

PR

abbreviation:  Patrol Vessel, River Gunboat

PR

abbreviation:  Pay Roll

PR

abbreviation:  Photographic Reconnaissance Aircraft

PR

abbreviation:  Priority Regulation

PR

abbreviation:  Public Relations

PR

abbreviation:  Puerto Rico

PRA

abbreviation:  Pay Readjustment Act (1942)

PRA

abbreviation:  Reserve and Auxiliary Division (USCG)

Prac

abbreviation:  Practice

PRC

abbreviation:  Production Readjustments Committee (WPB)

Prd

abbreviation:  Period

PRD

abbreviation:  Public Relations Division

PRECOMMDET

Bureau of Personnel Condensation Code:  Pre-Commissioning Detail

PRECOMMSCOL

Bureau of Personnel Condensation Code:  Pre-Commissioning School

PREP

abbreviation:  Unique method of pulse communications developed by Federal Telegraph and Radio Laboratories

Prepare to illuminate on bearing by [ ] searchlight and/or starshell

orders:  Command given by Conn, to Control, preparatory to illumination.

PRER

abbreviation:  Preparatory

Pres

abbreviation:  President

PreSign

abbreviation:  Procedure Sign

PresProc

abbreviation:  Presidential Proclamation

Prev

abbreviation:  Previous

PRF

abbreviation:  Pulse Repetition Frequency

PRI

abbreviation:  Prison

Prim

abbreviation:  Primary

Primary control

orders:  The normal method of director control using director’s electronic fire control equipment or director’s telescopes to range and bear on the target. The guns are usually in automatic. Plots send elevation and deflection as gun elevation order and gun train order.

PrimTra

abbreviation:  Air Primary Training

PrinMus

abbreviation:  Principle Musician (USMC)

PRISIC

abbreviation:  Photographic Reconnaissance Interpretation Section (Squadron) Intelligence Center (JICPOA)

Privateer

abbreviation:  See PB4Y-2- 2C

PRLTRL&M

abbreviation:  Printer, Lithographer and Multilith Operator

PRNC

abbreviation:  Potomac River Naval Command, Washington, D.C.

PRO

abbreviation:  Personnel Relations Officer (for Shore Stations)

PRO

abbreviation:  Promote(d); Promotion

PRO

abbreviation:  Public Relations officer

Prob

abbreviation:  Probation(ary)

Proc

abbreviation:  Procurement

PROFAGTRANS

Bureau of Personnel Condensation Code:  Proceed by first available Government transportation (not including air)

PROIMREP

abbreviation:  Proceed immediately to (location of ship, commander, or station designated b group(s) immediately following) and upon arrival report for duty or purposes indicated

Proj

abbreviation:  Projected

PROJ

abbreviation:  Projectile

Prom

abbreviation:  Promoted

proof strain

nautical:  The test load applied to anchors, chains, or other parts, fittings, or structure to demonstrate proper design and construction and satisfactory material.

proof strength

nautical:  The proof strength of a material, part, or structure is the strength which it has been proved by tests to possess.

Prop

abbreviation:  Propeller

PROP

abbreviation:  Property

propeller arch

nautical:  The arched section of the stern frame above the propeller.

propeller guard

nautical:  A framework fitted somewhat below the deck line on narrow, high-speed vessels with large screws so designed as to overhang and thus protect, the tips of the propeller blades.

propeller thrust

nautical:  The effort delivered by a propeller in pushing a vessel ahead.

propeller

nautical:  A propulsive device consisting of a boss or hub carrying radial blades, from two to four in number. The rear or driving faces of the blades form portions of an approximately helical surface, the axis of which is the center line of the propeller shaft.

proportional limit

nautical:  The stress within which stresses and deformations are directly proportional. Within this limit, on removing stress, there is no permanent set.

Propul

abbreviation:  Propulsion

PROREP

Bureau of Personnel Condensation Code:  Proceed to (location of ship, commander, or station designated by group(s) immediately following) and upon arrival report for duty or purpose indicated

ProSig

abbreviation:  Procedure Signal

Prot. Dk.

blueprints:  Protective Deck.

PROV

abbreviation:  Proving Grounds

Prov

abbreviation:  Provisional

ProvGr

abbreviation:  Proving Ground

prow

nautical:  An archaic term for the bow of a ship.

PROWDELREP

Bureau of Personnel Condensation Code:  Proceed without delay to (location of ship, commander, or station designated by group(s) immediately following) and upon arrival report for duty or purpose indicated

PRP

abbreviation:  Production Requirements Plan

PRP

abbreviation:  Public Relations Personnel

PRP

abbreviation:  Training and Procurement Division (USCG)

PRR

abbreviation:  Pulse Repetition Rate

PRSec

abbreviation:  Pay Roll Section

PRTR

abbreviation:  Printer

PRTRL

abbreviation:  Printer, Lithographer

PRTRM

abbreviation:  Printer, Offset Process

PRU

abbreviation:  Photographic Reconnaissance Unit (Aircraft) (USMC)

PS&M

abbreviation:  Division of Personnel Supervision and Management of AstSecNav’s Office; absorbed into SECP, 1944

PS&T

abbreviation:  Pay, Subsistence and Transportation

PS&TN

abbreviation:  Pay, Subsistence and Transportation, Navy

PS

abbreviation:  Chlorpicrin

PS

abbreviation:  Motion Picture Service Bookers

PS

abbreviation:  Navy Yard Puget Sound

PS

abbreviation:  Philippines Scouts (Army)

PS

abbreviation:  Pistol Sharpshooter (Army)

PS

abbreviation:  Puget Sound

PSandT

abbreviation:  Pay, Subsistence and Transportation

PSC

glossary:  Per Ship’s Compass. Indicates a magnetic compass reading. Often deck logs show both true and magnetic compass readings.

PSCLA

abbreviation:  Petroleum Supply Committee for Latin America

PSF

abbreviation:  Panama Sea Frontier

PSF

abbreviation:  Parti Social Français

PSF

abbreviation:  Philippine Sea Frontier

PSL

abbreviation:  Photographic Science Laboratory

PSNCF

abbreviation:  Pacific Southern Naval Coastal Frontier

PSNSY

abbreviation:  Puget Sound Naval Shipyard

PSNYd

abbreviation:  Puget Sound Navy Yard

PSO

abbreviation:  Political Survey Officers

PSO

abbreviation:  Publicity Security Officer

PSP

abbreviation:  Patrol Seaplane

PSTO

abbreviation:  Principal Sea Transport Offices

PT

abbreviation:  Patrol Vessel, Motor Torpedo Boat

PT

abbreviation:  Portsmouth Navy Yard

PT

abbreviation:  Postal Telegraph Company

PT

abbreviation:  Primary Target (Army)

PTC

abbreviation:  Patrol Vessel, Motor Torpedo Boat, Submarine Chaser

PTCAD

abbreviation:  Provisional Troop Carrier Airborne Division

PTO

abbreviation:  Port Transportation Officer (Army)

PTR

abbreviation:  Painter

PTR

abbreviation:  Patuxent River

PtrV

abbreviation:  Painter, Aircraft

PTSNH

abbreviation:  Portsmouth, New Hampshire

Pub Wks

abbreviation:  Public Works

PubInfo

abbreviation:  Office of Public Information; formerly, Office of Public Relations

Publ

abbreviation:  Publications

PUC

abbreviation:  Port Utilization Committee

PUC

abbreviation:  Production Urgency Committee (WPB)

puddening, pudding

nautical:  Pads constructed of old rope, canvas, oakum, etc., sometimes leather covered, in any desired shape and size and used to prevent chafing of boats, rigging, etc., on the stem of a boat to lessen the force of a shock.

PUG

abbreviation:  Puget Sound

punch, prick

nautical:  A small punch used to transfer the holes from the template to the plate. Also called a "center punch".

punch

nautical:  A machine for punching holes in plates and shapes.

punt

nautical:  A flat bottom boat with square ends, used in painting and cleaning a vessel’s sides when in port.

PUR

abbreviation:  Purchase(ing)

Pur

abbreviation:  Pursuant

PUR

abbreviation:  Pursuit

purchase

nautical:  Any mechanical advantage which increases the power applied.

Purif

abbreviation:  Purification

PURS

abbreviation:  Pursuit

PV-1

abbreviation:  "Ventura"; twin-engine Navy patrol-bomber(VPB(HL)), landplane, manufactured by Vega

PV-2

abbreviation:  "Harpoon"; twin-engine Navy Patrol-bomber (VPB(ML)), landplane, manufactured by Lockheed

PV-3

abbreviation:  "Ventura"; twin-engine Navy patrol-bomber (VPB(ML)), manufactured by Lockheed

PV

abbreviation:  Public voucher

Pvt

abbreviation:  Private

PW

abbreviation:  Prisoner of War

PW

abbreviation:  Public Works

PWA

abbreviation:  Public Works Administration

PWB

abbreviation:  Psychological Warfare Branch (AFHQ)

PWB

abbreviation:  Pulling Whaleboat

PWC

abbreviation:  Pacific War Council

PWD

abbreviation:  Psychological Warfare Division

PWD

abbreviation:  Public Works Department

PWDEPT

Bureau of Personnel Condensation Code:  Public Works Department

PWE

abbreviation:  Political Warfare Executive (GB)

PWE

abbreviation:  Political Warfare Executive Middle East (GB)

PWO

abbreviation:  Public Works Office(r)

PWOF

Bureau of Personnel Condensation Code:  Public Works Officer

PX

abbreviation:  Post Exchange (USMC) (Army)

PXO

abbreviation:  Prospective Executive Officer

PY

abbreviation:  Patrol Vessel, Yacht

PYc

abbreviation:  Patrol Vessel, Yacht, Coastal

pyrotechnics

nautical:  Flares, rockets, powder, etc., used for giving signals or for illumination, more generally used as distress signals.

Q Card

abbreviation:  Qualifications Card

Q-Day

abbreviation:  Day for dress rehearsal of atom bomb test (23 June 1946)

Q

abbreviation:  Bristol Aeronautical Corporation (glider) (manufacturer’s symbol)

Q

abbreviation:  Electronic countermeasures missions (suffix to plane designation)

Q

abbreviation:  Fairchild Aircraft Division (Fairchild Corporation)

Q

abbreviation:  Ranger-Lark Division (Fairchild Corporation) (manufacturer’s symbol)

Q

abbreviation:  Stinson Aircraft Corporation (now Consolidated-Vultee) (manufacturer’s symbol)

QCJ

abbreviation:  Underwater sound gear

QCL

abbreviation:  Underwater sound gear

QLA

abbreviation:  Frequency Modulated (sonar)

QM

abbreviation:  British Long Range Radio Aid to Navigation (Decca)

QM

abbreviation:  Plotting & Chart Work (Operations)

QM

abbreviation:  Quartermaster

QM

abbreviation:  Research Laboratory

QMAO

abbreviation:  Qualified for mobilization ashore only

QMC

abbreviation:  Quartermaster Clerk (USMC)

QMC

abbreviation:  Quartermaster Corps (Army)

QMG

abbreviation:  Quartermaster General

QMMClk

abbreviation:  Quartermaster Clerk (USMC)

QMSgt

abbreviation:  Quartermaster Sergeant (USMC)

QMSO

abbreviation:  Quartermaster Supply Officer (Army)

QPE

abbreviation:  Physical Education Specialist, Medical

QRPAO

abbreviation:  Qualified Radium Plaque Adaptometer Operator

Qtr(s)

abbreviation:  Quarter(s)

Qtrs.

blueprints:  Quarters.

QTRS

abbreviation:  Quarters allowance

Quad

abbreviation:  Quadruple (gun mounts)

quadrant

nautical:  A reflecting hand navigational instrument constructed on the same principle as the sextant but measuring angles up to 90 degrees only. Also known as an octant. One-fourth of the circumference of a circle. A fitting in the shape of a sector of a circle secured to the rudder stock and through which the steering leads turn the rudder. The rim is provided with two grooves to take the steering chains or ropes and is of sufficient length of arc so that the leads are tangential to the rim at all rudder angles.

Qual

abbreviation:  Qualified for all types of duty

Quart

abbreviation:  Quartermaster (USCG)

quarter

nautical:  The upper part of a vessel’s sides near the stern; also portions of the vessel’s sides about midway between the stem and midlength and between midlength and the stern. The part of a yard just outside the slings.

quarterman

nautical:  An underforeman, a term generally restricted to navy yards.

quarters

nautical:  Living spaces for passengers or personnel. It includes staterooms, dining salons, mess rooms, lounging places, passages connected with the foregoing, etc.; individual stations for personnel for fire or boat drill, etc.

Quarters

orders:  All hands assemble at established parade.

quay

nautical:  An artificial wall or bank, usually of stone, made toward the sea or at the side of a harbor or river for convenience in loading and unloading vessels.

Queen

abbreviation:  "Q" in the phonetic alphabet

QUES

abbreviation:  Question mark

R/B

abbreviation:  Radio Beacon

R/C

abbreviation:  Request for checkage

R/S

abbreviation:  Report of Survey (Army)

R&PSec

abbreviation:  Radio and Panel Section

R&PT

abbreviation:  Rifle and Pistol Team

R&SSq

abbreviation:  Repair and Salvage Squadron

R

abbreviation:  A suffix which, when appended to a basic USNR officer classification, indicates special qualifications in Electronics

R

abbreviation:  Aeronca Aircraft Corporation (manufacturer’s symbol)

R

abbreviation:  American Aviation Corporation (Glider)

R

abbreviation:  Brunswick-Balke-Callender (aircraft company) (manufacturer’s symbol)

R

abbreviation:  Converted to a transport (suffix to plane designation); as, PBM-3R

R

abbreviation:  Damage Control, Construction and Repair Division of a carrier

R

abbreviation:  Interstate Aircraft and Engineering Corporation (manufacturer’s symbol)

R

abbreviation:  Maxson-Brewster (W.L. Maxson Corporation) (aircraft) (manufacturer’s symbol)

R

abbreviation:  Radial (aircraft engine)

R

abbreviation:  Radio Phone Company

R

abbreviation:  Reduced Operation

R

abbreviation:  Resister; Resistance

R

abbreviation:  Ryan Aeronautical Company (manufacturer’s symbol)

R30-2

abbreviation:  Twin-engine Navy Transport (VR(ML)), manufactured by Lockheed

R3D-#

abbreviation:  Twin-engine Navy transport (VR(ML)), landplane, manufactured by Douglas (El Segundo)

R4D-1-5-6-7

abbreviation:  "Skytrain"; twin-engine Navy transport (VR(ML)), landplane, manufactured by Douglas

R4D-2-3-4

abbreviation:  "Skytrooper"; twin-engine Navy transport (VR(ML)), manufactured by Douglas

R50-#

abbreviation:  "Lodestar"; two-engine Navy transport (VR(ML)), manufactured by Lockheed

R5C-#

abbreviation:  "Commando"; twin-engine Navy transport (VR(ML)), manufactured by Curtiss

R5D-4

abbreviation:  "Skymaster"; four-engine Navy transport (VR(HL)), manufactured by Douglas

RA(A)EF

abbreviation:  Rear Admiral (Administration) Eastern Fleet (GB)

RA

abbreviation:  Regular Army

RA

abbreviation:  Rental Agreement

RAACEF

abbreviation:  Rear Admiral Aircraft Carriers, Eastern Fleet (GB)

RAAF

abbreviation:  Royal Australian Air Force

RAB

abbreviation:  Radio Receiver (HF)

rabbet

nautical:  A groove, depression, or offset in a member into which the end or edge of another member is fitted, generally so that the two surfaces are flush. A rabbet in the stem or keel would take the ends or edges of the planking or shell plating.

RAC

abbreviation:  Rear Admiral Commanding (GB)

RAC

abbreviation:  Rubber Allocation Committee

racking

nautical:  Deformation of the section of a ship, generally applied to a transverse section, so that one set of diagonals in the plane of action is shortened while those at right angles thereto are lengthened.

RACOB(WA)

abbreviation:  Rear Admiral Commanding Combined Operational Bases (Western Approaches) (GB)

RACON

abbreviation:  Radar Beacon

RAD (BPF)

abbreviation:  Rear Admiral Commanding Destroyers (British Pacific Fleet)

Rad.

blueprints:  Radius.

RAD(NO.)

abbreviation:  Radar Bulletin; as, RADSIX (Radio Bulletin, No. 6)

RAD

abbreviation:  Radio

RAD

abbreviation:  Released from Active Duty

RAD

abbreviation:  Reported for Active Duty

RAD

abbreviation:  Reservists on Active Duty under "Appropriation Chargeable Naval Reserve" (Does not include Reservists on annual training duty)

radar pickets (RP)

glossary:  Ships equipped with radar and stationed a number of miles away from the main fleet and/or allied invasion forces. These ships would provide advance warning of any attacking enemy aircraft or ships. Each picket ship was assigned a designated station, usually 20 or so miles apart from each other. By positioning the pickets at unique stations, the pickets could monitor a large area of ocean and sky.

Radar

abbreviation:  Radio detection and ranging

RadCM

abbreviation:  Radar Countermeasures and Deception

Radex

abbreviation:  Radar countermeasures training

radio room

nautical:  A room, usually sound-proofed, used for sending and receiving radio messages.

RADM

abbreviation:  Rear Admiral

RadOp

abbreviation:  Radio Operator

RadPlanBd

abbreviation:  Radio Planning Board

RAF

abbreviation:  Royal Air Force (GB)

raft, life

nautical:  A frame work fitted with air chambers to support a number of people in case of accidents. Carried on deck and light enough to be handled without mechanical means.

RAFT

abbreviation:  Rear Admiral Fleet Train (British Pacific Fleet)

rail

nautical:  The upper edge of the bulwarks. Also applied to the tiers of guard rods running between the top rail and the deck where bulwarks are not fitted.

Rainbow

abbreviation:  War plans for use in war against a coalition of enemies

RAK

abbreviation:  Radio Receiver (HF)

rake

nautical:  A term applied to the fore and aft inclination from the vertical of a mast, smokestack, stempost, etc.

RAL

abbreviation:  Radio Receiver (HF)

RAL

abbreviation:  Rear Admiral Alexandria (GB)

rally

nautical:  The action of gangs of men uniting in driving wedges between the cradle and the sliding ways preparatory to launching or similar activities.

RAN(V)R

abbreviation:  Royal Australian Naval (Volunteer) Reserve

RAN

abbreviation:  Royal Australian Navy

range, galley

nautical:  The stove, situated in the galley, which is used to cook the food. The heat may be generated by coal, fuel oil, or electricity.

Range

orders:  The distance to the target reported form spotter, range-finder, or electronic equipment, or to set the range in yards on range dial or sword arm; this gives the elevation necessary to propel a projectile a given distance.

RAO

abbreviation:  Radio Receiver (HF)

RAO

abbreviation:  Received for record purposes only. Individual not received physically.

RAOB

abbreviation:  Radio Meteorograph Sounding

Rapid continuous fire

orders:  Each gun in each turret fires when loaded and ready.

Rapid fire

orders:  The director fires whenever a certain number of turrets are ready. In case of rapid fire guns this is synonymous with continuous fire.

RARC

abbreviation:  Revoked appointment and returned to civilian status

RAS

abbreviation:  Radio Receiver (MF to HF)

RASC

abbreviation:  Royal Army Service Corps (GB)

Rasta

abbreviation:  Radio Station (USCG)

rat guard

nautical:  A dished, circular piece of metal made in two parts and fitted closely on hawsers and lines to prevent rats boarding or leaving a ship while at a dock or wharf. The concave side is placed toward the shore to prevent boarding, and the guard is reversed to prevent rats leaving the ship.

Rat(s)

abbreviation:  Ration(s)

ratlines

nautical:  Short lengths of ratline stuff secured to the shrouds parallel to the waterline and serving as ladder rungs for the crew to ascend or descend.

RATT

abbreviation:  Radio Teletypewriter

RAWA

abbreviation:  Rear Admiral West Africa (GB)

RAWIND

abbreviation:  Radio Wind (USCG)

RB-#

abbreviation:  "Conestoga"; twin-engine Navy Transport (VR(ML)), manufactured by Budd

RBB

abbreviation:  Radio Receiver (MF)

RBC

abbreviation:  Radio Receiver (HF)

RBH

abbreviation:  Radio Receiver (HF)

RBH

abbreviation:  Regimental Beachhead (Army)

RBH

glossary:  Ship to shore radio.

RBK

abbreviation:  Radio Receiver (VHF)

RBO

abbreviation:  Radio Receiver (HF)

RC

abbreviation:  Reception Center (Army)

RCA

abbreviation:  Radio Corporation of America

RCAF

abbreviation:  Royal Canadian Air Force

RCL

abbreviation:  Ramped Cargo Lighter

RCM

abbreviation:  Aviation Radio and Radar Countermeasures Technician

RCM

abbreviation:  Radio and Radar Countermeasures

RCN(V)R

abbreviation:  Royal Canadian Naval (Volunteer) Reserve

RCN

abbreviation:  Reconnaissance

RCN

abbreviation:  Royal Canadian Navy

RcnLR

abbreviation:  Reconnaissance Long Range (Army)

RCO

abbreviation:  Radar Control Officer

RCO

abbreviation:  Radio Receiver (VHF)

RCO

abbreviation:  Remote Control Office

RCo

abbreviation:  Rifle Company (Army)

RCRC

abbreviation:  Revoked commission, returned to civilian status

RCS

abbreviation:  Radar Control Ship

RCT

abbreviation:  Regimental Combat Team

Rctg

abbreviation:  Recruiting

RCU

abbreviation:  Requisition Control Unit

RD OPR

abbreviation:  Radar Operator

RDB

abbreviation:  Ramped Dump Barge

RDEM

abbreviation:  Released from active duty result demobilization

RDep

abbreviation:  Recruit Depot

RDF

abbreviation:  Radio Direction Finder

RDFSta

abbreviation:  Radio Direction Finder Station

RDM

abbreviation:  Radarman

RDM

abbreviation:  Ramped Dumped Barge

RDO

abbreviation:  Radio; Wireless

Rdr

abbreviation:  Raider (USMC)

Rds

abbreviation:  Rounds of ammunition

RDU

abbreviation:  Receipt and Despatch Unit (Aircraft)

RE

abbreviation:  Radio Electrician

Ready

orders:  Each gun (mount or turret) reports "ready" to Control as soon as there are sufficient men at the station to fire a gun at a reduced rate by local method. Control reports "ready" to Conn or Bridge as soon as one gun can be fired.

reaming

nautical:  Enlarging a hole by the means of revolving in it a cylindrical slightly tapered tool with cutting edges running along its sides.

Rear Adm

abbreviation:  Rear Admiral

Rear Admiral

glossary:  Formerly (1943-1950) the commissioned navy rank above commodore and below vice admiral; designated O -8. Now known as rear admiral (upper half). Abbreviated RADM.

REC

abbreviation:  Receive(ing)

RecBaks

abbreviation:  Receiving Barracks

Recce

abbreviation:  Reconnaissance

RECD

abbreviation:  Received

Recg

abbreviation:  Receiving

Recipro

abbreviation:  Reciprocating

Recl

abbreviation:  Reclamation

RECOG

abbreviation:  Recognition

Recom

abbreviation:  Recommend(ed); Recommendation

RECON

abbreviation:  Reconnaissance

ReconCo

abbreviation:  Reconnaissance Company (USMC)

RecruitSta

abbreviation:  Recruiting Station

RecShip

abbreviation:  Receiving Ship

RecSta

abbreviation:  Receiving Station

RedAS

abbreviation:  Reduced to Apprentice Seaman

reduction gear

nautical:  An arrangement of shafts and gears such that the number of revolutions of the output shaft is less than of the input shaft — generally used between a motor or a steam turbine shaft and the propeller shaft.

Reefer

abbreviation:  Refrigeration; Cold Storage locker

REEN ALLOW

abbreviation:  Reenlistment Allowance

Reenl

abbreviation:  Reenlist(ed); Reenlistment

Reeve

orders:  To pass a rope through an aperture.

reeving

nautical:  The act of passing the end of a rope or chain through an opening, as passing a rope through a block.

REF

abbreviation:  Refer(ence)

REFURDIS

abbreviation:  Reference your dispatch

REFURLTR

abbreviation:  Reference your letter

Reg

abbreviation:  Registered

Regrig

abbreviation:  Refrigeration

REGS

abbreviation:  Regulations

Regt

abbreviation:  Regiment

Rehab

abbreviation:  Rehabilitation

Rein

abbreviation:  Reinforced

Reinf

abbreviation:  Reinforced

REL

abbreviation:  Relief

Rel

abbreviation:  Relieve(d)

RELBY

Bureau of Personnel Condensation Code:  When relieved by

RELDET

Bureau of Personnel Condensation Code:  When relieved detached from duty indicated and from such other duty as may have been assigned

RELDIRDET

Bureau of Personnel Condensation Code:  When relieved and when directed by the commanding officer or commander designated detached from duty indicated and from such other duty as may have been assigned

RELE

abbreviation:  Radio Electrician

RELES

abbreviation:  Released to War Shipping Administration

Rem-Rand

abbreviation:  Remington-Rand

Rem

abbreviation:  Remit(ed)

Ren MR

abbreviation:  Reconnaissance medium Range (Army)

RENT

abbreviation:  Allotment for payment of rent when specifically authorized by the Secretary of the Navy

REP

abbreviation:  repair

Rep

abbreviation:  Repairman

REPAR

abbreviation:  repairing

RepComDesPac

abbreviation:  Representative of Commander Destroyers, Pacific Fleet

Repel [ ] attack (dive bomber) (torpedo plane/pt)

orders:  A command to discontinue all other action. Guns to go to designated sector and to open fire automatically in accordance with doctrine on any place (etc.) sighted in the assigned sector.

RepForMaint

abbreviation:  Representative of maintenance Force

REPISC

Bureau of Personnel Condensation Code:  Report to immediate superior in command if present, otherwise by dispatch, for duty indicated

REPL

abbreviation:  Replacement

Replace ammunition

orders:  Put all ammunition in the loading line back into ready racks, or boxes, and fill up the empty spaces with ammunition from the magazines.

Repln

abbreviation:  Replacement

REPLTR

Bureau of Personnel Condensation Code:  Report(ing) by letter to —

RepO

abbreviation:  Reporting Officer

Report casualties

orders:  Report at once any materiel and personnel casualties. More detailed reports should be made as the opportunity permits, but serious damage or injuries should be reported at once. After firing runs such reports are routine.

REPT

abbreviation:  Report(ing)

REPTRANS

Bureau of Personnel Condensation Code:  Report for transportation to the port in which ship or commander designated may be, or to location designated. Upon arrival report for duty or purpose indicated.

Req

abbreviation:  Request; Requisition

REQN

abbreviation:  Requisition

REQNOM

Bureau of Personnel Condensation Code:  Request nomination

REQREC

abbreviation:  Request recommendation

Requal

abbreviation:  Requalify; Requalified

RER

abbreviation:  Rubberized Equipment Repair

RES/IC

abbreviation:  Reserve-In Commission (vessel status)

RES/IS

abbreviation:  Reserve-In Service (vessel status)

RES/OC

abbreviation:  Reserve-Out of Commission (vessel status)

RES/OS

abbreviation:  Reserve-Out of Service (vessel status)

RES

abbreviation:  Reserve

RESC

abbreviation:  Rescue

ResDist

abbreviation:  Reserve District

Resgd

abbreviation:  Resigned

ResLab

abbreviation:  Research Laboratory

Rest ltr

abbreviation:  Restricted letter

Rest

abbreviation:  Restricted

Restd

abbreviation:  Restricted

RESTR

abbreviation:  Restricted

Resume fire, resume fire

orders:  A command to continue fire after "Check Fire" has been given.

Resume sectors or take sectors

orders:  Guns resume or assume ready status in their assigned sector.

Ret ser

abbreviation:  Retained in the service

Ret

abbreviation:  Retain(ed)

RET

abbreviation:  Retired

RETAN

abbreviation:  Retained

Retd

abbreviation:  Retired

RETRO FA

abbreviation:  Retroactive Family Allowance checkage

Reurad

abbreviation:  Refer to (Regarding) your message

REVAR

Bureau of Personnel Condensation Code:  Authorized to revisit any of the above mentioned places and to vary the above itinerary as may be deemed necessary

reverse frame

nautical:  An angle bar or other shape riveted to the inner edge of a transverse frame to reinforce it.

revolutions

glossary:  Number of turns of the propeller, per minute.

RF

abbreviation:  Radio Frequency

RFA

abbreviation:  Royal Fleet Auxiliary (GB)

RFAD

abbreviation:  Released from active duty not result of demobilization

RFC

abbreviation:  Reconstruction Finance Corporation

RFD

abbreviation:  Rural Free Delivery

RFP

abbreviation:  Radio Finger Printing

RFS

abbreviation:  Ready for sea

RgPh

abbreviation:  Registered Pharmacist

RHO

abbreviation:  Railhead Officer

RHQ

abbreviation:  Regimental Headquarters

RI

abbreviation:  Recruit Instruction

RI

abbreviation:  Rhode Island

ribband

nautical:  A fore-and-after strip or heavy batten used to support the transverse frames temporarily after erection.

ribs

nautical:  A term applied to the transverse frames of a boat.

ride

nautical:  To float in a buoyant manner while being towed or lying at anchor.

rider plate

nautical:  A continuous flat plate attached to the top of a center line vertical keel in a horizontal position. Its under side is attached to the floors, and when an inner bottom is fitted, it forms the center strake.

Rig

abbreviation:  Rigger

rigging

nautical:  A term used collectively for all the ropes and chains employed to support the masts, yards, and booms of a vessel, and to operate the movable parts of same.

Right (left) 10 degrees rudder

orders:  Indicates a turn of the rudder a designated number of degrees to the right or to the left of amidships.

Right (left) full rudder

orders:  Give all of the left or right rudder than can be obtained without danger of jamming rudder against ship.

Right (left) handsomely

orders:  To change the rudder angle with care, as in coming alongside a dock.

Right (left) standard rudder

orders:  Indicates a turn of the rudder to the right or left of amidships that number of degrees necessary to make a turn with standard tactical diameter.

RIIA

abbreviation:  Royal Institute of International Affairs (GB)

RIN

abbreviation:  Royal Indian Navy (GB)

RINA

abbreviation:  Resident Inspector of Naval Aircraft

Ring

abbreviation:  Airborne television system

RINM

abbreviation:  Resident Inspector of Naval Material

RInsMat

abbreviation:  Resident Inspector of Naval Material

RInsOrd

abbreviation:  Resident Naval Inspector of Ordnance

rise of bottom

nautical:  See deadrise.

riser

nautical:  The upright board of a stair. A pipe extending vertically and having side branches.

risings

nautical:  The fore and aft stringers inside a small boat, secured to the frames, and on which the thwarts rest.

rivet

nautical:  A metal pin used for connecting two or more pieces of material by inserting it into holes punched or drilled in the pieces and upsetting one or both ends. The end that bears a finished shape is called the head and the end upon which some operation is performed after its insertion is called the point. Small rivets are "driven cold," i.e., without heating, and large ones are heated so that points may be formed by hammering.

riveting, chain

nautical:  A term applied to an arrangement of the rivets in adjoining rows where the center of the rivets are opposite each other and on a line perpendicular to the joint.

riveting, staggered or zig-zag

nautical:  A term applied to an arrangement of the rivets in adjoining rows where the rivets in alternate rows are one-half the pitch or spacing ahead of those in the other rows.

riveting

nautical:  The art of fastening two pieces of material together by means of rivets.

rivets, line of

nautical:  A term applied to a continuous line of rivets whose centers fall on a line perpendicular to the joint.

rivets, row of

nautical:  A term applied to a continuous row of rivets whose centers fall on a line parallel to the joint. Joints made by one row of rivets are known as single-riveted joints; by two rows, as double-riveted joints; by three rows, as treble-riveted joints; by four rows, as quadruple-riveted joints; etc.

Rivs.

blueprints:  Rivets.

RKO

abbreviation:  Range Keeper Operator

RL

abbreviation:  Rocket Launcher

RLO

abbreviation:  Repairs Liaison Officer (Landing Craft and Barges)

RM Armd Sp Gp

abbreviation:  Royal Marine Armored Support Group (GB)

Rm.

blueprints:  Room.

RM

abbreviation:  Radioman

RME

abbreviation:  Royal Marine Engineers (GB)

RML

abbreviation:  Rescue Motor Launch (Air/Sea Rescue)

RMN

abbreviation:  Reserve Material (Account) Navy

RMO

abbreviation:  Radio (Radar) Material Officer

RN(V)R

abbreviation:  Royal Naval (Volunteer) Reserve (GB)

RN

abbreviation:  Royal Navy (GB)

RNAMY

abbreviation:  Royal Naval Aircraft Maintenance Yard (GB)

RNATE

abbreviation:  Royal Naval Air Training Establishment (GB)

RNBC

abbreviation:  Royal Naval Beach Commando (GB)

RNGHQ

abbreviation:  Royal Navy General Headquarters (Cairo) (GB)

RNIO

abbreviation:  Resident Naval Inspector of Ordnance

RNLO

abbreviation:  Royal Naval Liaison Officer

RNN

abbreviation:  Royal Netherlands Navy

RNZAF

abbreviation:  Royal New Zealand Air Force

RNZN(V)R

abbreviation:  Royal New Zealand Naval (Volunteer) Reserve

RNZN

abbreviation:  Royal New Zealand Navy

RO

abbreviation:  Recruiting Officer

RO

abbreviation:  Regimental Orders (Army)

RO

abbreviation:  Routing Office(r)

ROB

abbreviation:  Reserve on Board

Roc

abbreviation:  Television system for guiding bombs

ROCCM

abbreviation:  Guided Missile Countermeasures

Rocking ladder yard spread yard steps

orders:  A command from controlling spotter, to control party, to alternate ladder in and out.

Roger

abbreviation:  I understand

Roger

abbreviation:  R in the phonetic alphabet

ROinC

abbreviation:  Resident Officer-in-Charge

roll

nautical:  Motion of the ship from side to side, alternately raising and lowering each side of the deck.

rolling chocks

nautical:  Same as keel, bilge.

RON

abbreviation:  Squadron

RONLY

abbreviation:  Receiver only

RONS

abbreviation:  Reserve Officers of the Naval Service

rope lay

nautical:  The direction in which a rope is twisted up.

rope worming

nautical:  Filling in the contlines of a rope with marline. The marline should run with the lay of the rope.

rope, ridge

nautical:  A rope running through the eyes at the heads of the awning stanchions to which the edge of an awning is hauled out and stopped. The term "center ridge rope" is applied to the rope supporting the center of an awning.

rope

nautical:  The product resulting from twisting a fibrous material, such as manila, hemp, flax, cotton, coir, etc., into yarns or threads which in turn are twisted into strands and several of these are laid up together. Fiber rope is designated as to size by its circumference. Wire rope is made of iron, steel, or bronze wires, with and without a fiber core or heart, twisted like yarns to form strands which are laid up to form the rope. Wire rope is designated as to size both by its diameter and by its circumference.

RORET

abbreviation:  Authorized Rotational Retention

roses

nautical:  Perforated metal plates, fitted over the outside of injection sea cocks to prevent entrance of foreign substances to the ship’s pumps and piping system.

ROTATE

abbreviation:  Return to

ROTC

abbreviation:  Reserve Officers Training Corps (usually NROTC)

ROVNITE

abbreviation:  Remaining overnight

rowlock

nautical:  A U-shaped fitting with a shank or a socket which is attached to the gunwale of a boat and used as a fulcrum for oars in rowing, sculling, or steering.

RP

abbreviation:  Raid Plotter

RP

abbreviation:  Rocket Projectile

RPA

abbreviation:  Radium Plaque Adaptometer

RPAO

abbreviation:  Radium Plaque Adaptometer Operator

RPC

abbreviation:  Registered Publication Clerk

RPD

abbreviation:  Radar Planning Device

RPH

abbreviation:  Registered Pharmacist

RPIO

abbreviation:  Registered Publications Issuing Office

RPM

abbreviation:  Registered Publication Manual

RPM

abbreviation:  Registered Publication Memorandum

RPM

abbreviation:  Revolutions Per Minute

RPPI

abbreviation:  Remote Plan Position Indicator

RPS-DL

abbreviation:  Registers Publications Section — District Library

RPS-PL

abbreviation:  Registered Publications Section — Personnel Library

RPS

abbreviation:  Registered Publications Section

RPSM

abbreviation:  Registered Publication Shipment Memorandum

RPU

abbreviation:  Radio Phone Unit

RPU

abbreviation:  Registered Publication Unit

RR

abbreviation:  Railroad

RR

abbreviation:  Recruit Roll

RR

abbreviation:  Rifle Range

RRC

abbreviation:  Requirements Review Committee (AstSecNav)

RRC

abbreviation:  Rubber Reserve Committee

RS

abbreviation:  Passenger Transportation Specialist

RS

abbreviation:  Radio Duties — Special

RS

abbreviation:  Receiving Ship or Station

RS

abbreviation:  Recruiting Station

RS

abbreviation:  Revised Statutes

RSC

abbreviation:  Reserve Service Control

RSO

abbreviation:  Regimental Supply Officer (Army)

RT or R/T

abbreviation:  Radio Telephony

RT

abbreviation:  Radio Technician

RTC

abbreviation:  Replacement Training Center (Army)

RTL

abbreviation:  Regimental Training Line (Army)

RTO

abbreviation:  Railroad Transportation officer (Army)

RTTY

abbreviation:  Radio Teletype

rubbing strip

nautical:  A plate riveted to the bottom of the keel to afford protection in docking and grounding. A strip fastened to the face of a fender or to the shell plating where contact is likely to occur.

RUDAOE

abbreviation:  Report of Unsatisfactory or Defective Aviation Ordnance Equipment

Rudder [ ] degrees right (left), sir

orders:  A report from the helmsman to the Conning Officer stating the degrees of the angle of the rudder.

Rudder amidships

orders:  Place the rudder in line with the keel of the ship.

rudder bands

nautical:  The bands that are placed on each side of a rudder to help brace it and tie it into the pintles.

rudder chains

nautical:  The chains whereby a rudder is sometimes fastened to the stern. They are shackled to the rudder by bolts just above the water line, and hang slack enough to permit free motion of the rudder. They are used as a precaution against losing a rudder at sea. These chains are also called "rudder pendants".

rudder frame

nautical:  A term applied to a vertical main piece and the arms that project from it which form the frame of the rudder. It may be a casting, a forging, or a weldment.

rudder pintles

nautical:  See pintles.

rudder post

nautical:  See Stern post.

rudder stock

nautical:  A vertical shaft having a rudder attached to its lower end and having a yoke, quadrant, or tiller fitted to its upper portion by which it may be turned.

rudder stops

nautical:  Fittings attached to the ship structure or to shoulders on the rudder post to limit the swing of the rudder.

rudder trunk

nautical:  A watertight casing fitted around a rudder stock between the counter shell plating and a platform or deck, usually fitted with a stuffing box at the upper end.

rudder, balanced

nautical:  A rudder having the leading edge of a whole or a part of its area forward of the center line of the rudder stock, thus advancing the center of pressure of the water on the rudder and reducing the torque.

rudder, underhung

nautical:  A rudder that is not hinged to or stepped on the stern post, but is supported entirely by the rudder stock and the rudder stock bearings.

rudder

nautical:  A device used in steering or maneuvering a vessel. The most common type consists of a flat slab of metal or wood, hinged at the forward end to the stern or rudder post. When made of metal, it may be built up from plates, shapes, and castings, with or without wood filling, or it may be a casting. The rudder is attached to a vertical shaft called the rudder stock, by which it is turned from side to side.

RUDM

abbreviation:  Report of Unsatisfactory or Defective Material (aircraft)

RUG

abbreviation:  Electronic Jammer (radar)

run

nautical:  The underwater portion of a vessel aft of the midship section or flat of the bottom. That portion of the after hull that tapers to the stern post.

running rigging

nautical:  Ropes which are hauled upon at times in order to handle and adjust sails, yards, cargo, etc., as distinguished from standing rigging which is fixed in place.

RUSNO(Location)

abbreviation:  Resident United States Naval Officer (Location)

RVA

abbreviation:  Retailer’s Uniform Agency

RW

abbreviation:  Recreation and Welfare

RW

abbreviation:  Recruiting Warrant

RY-#

abbreviation:  "Liberator"; four-engine Navy transport (VR(HL)), manufactured by Consolidated-Vultee

S (No.)

abbreviation:  Senate Bill (Number)

S (number)

abbreviation:  Commanding Officer (number) Submarine Flotilla

S-C

abbreviation:  Secret and Confidential Files

S-L

abbreviation:  Sound locator

S-MPR

abbreviation:  Semi-Monthly Progress Reports

S. A.

blueprints:  Shaft Alley.

S. P.

blueprints:  Stern Post.

S. R.

blueprints:  State Room.

S/C

abbreviation:  Statement of Charges (Army)

S/M

abbreviation:  Submarine (GB)

S/M

abbreviation:  Submarine pay

S/P or SP

abbreviation:  Seaplane

S/R

abbreviation:  Service Record (Army)

S/RS

abbreviation:  Staff Returns (USMC)

S/T

abbreviation:  Shipping Ticket (Army)

S/T

abbreviation:  Sonic Telegraphy

S/V

abbreviation:  Surface Vessel

S&A

abbreviation:  Bureau of Supplies and Accounts

S&D

abbreviation:  Single and Double Reduction Gears

S&F

abbreviation:  Sound and Flash

S&FSD(A)

abbreviation:  Sea and Foreign Service Duty (on aviation pay)

S&FSD(S)

abbreviation:  Sea and Foreign Duty (on submarine pay)

S&FSD

abbreviation:  Sea and Foreign Service Duty (pay status)

S&K

abbreviation:  Snow and Knobstedt (ship engines)

S&PResDis

abbreviation:  Severn and Potomac Reserve District (USMC)

S

abbreviation:  Anti-Submarine Patrol (suffix to plane designation); as, PBM-3S

S

abbreviation:  Boeing Aircraft Co. (formerly Stearman) (manufacturer’s symbol)

S

abbreviation:  First letter in the Navy aircraft designation, indication a scouting plane

S

abbreviation:  School(s)

S

abbreviation:  Schweizer Aircraft Co. (manufacturer’s symbol)

S

abbreviation:  Seaman; as S1 (Seaman 1st class)

S

abbreviation:  Seaplane

S

abbreviation:  Secret dispatch

S

abbreviation:  Sesquiplane

S

abbreviation:  Sikorsky Aircraft (United Aircraft Corporation) (manufacturer’s symbol)

S

abbreviation:  South

S

abbreviation:  Stearman Aircraft Co. (now Boeing) (manufacturer’s symbol)

S

abbreviation:  Supply Department aboard a carrier

S

abbreviation:  USNR officer designation of Special Service, Unlimited. Formerly (S).

S

abbreviation:  Vought-Sikorsky (United Aircraft Corporation) (manufacturer’s symbol)

S3

abbreviation:  Squadron Operations Officer (USMC)

SA

abbreviation:  Air Search Radar (shipborne)

SA

abbreviation:  Arsine

SA

abbreviation:  Limited duty

SA

abbreviation:  Semiautomatic

SA

abbreviation:  South America

SA

abbreviation:  Special Artificer

SA

abbreviation:  Special Assignment

SA

abbreviation:  USNR officer designation for Special Service, Aviation Non-flying. Formerly S(A).

SA1

abbreviation:  USNR officer designation for Special Service, Heavier-than-Air Pilot. Formerly S(A2) and A-VN.

SA1N

abbreviation:  USNR officer designation. See SA1 and N. Formerly S(A1)-N.

SA1R

abbreviation:  USNR officer designation. See SA1 and R. Formerly S(A1)-R.

SA1T

abbreviation:  USNR officer designation. See SA1 and T. Formerly S(A1)-T.

SA1X

abbreviation:  USNR officer designation. See SA1 and X. Formerly S(A1)-X.

SA2

abbreviation:  USNR officer designation for Special Service, Lighter-than-Air Pilot. Formerly S(A2) and A-VN.

SA2N

abbreviation:  USNR officer designation. See SA2 and N. Formerly S(A2)-N.

SA2R

abbreviation:  USNR officer designation. See SA2 and R. Formerly S(A2)-R.

SA2T

abbreviation:  USNR officer designation. See SA2 and T. Formerly S(A2)-T.

SA2X

abbreviation:  USNR officer designation. See SA2 and X. Formerly S(A2)-X.

SA3

abbreviation:  USNR officer designation for Special Service, Heavier-than-Air Pilot. Formerly S(A3) and A-VG.

SA3N

abbreviation:  USNR officer designation. See SA3 and N. Formerly S(A3)-N.

SA3R

abbreviation:  USNR officer designation. See SA3 and R. Formerly S(A3)-R.

SA3T

abbreviation:  USNR officer designation. See SA3 and T. Formerly S(A3)-T.

SA3X

abbreviation:  USNR officer designation. See SA3 and X. Formerly S(A3)-X.

SA4

abbreviation:  USNR officer designation for Special Service, Lighter-than-Air Pilot. Formerly S(A4) and A-VG.

SA4N

abbreviation:  USNR officer designation. See SA4 and N. Formerly S(A4)-N.

SA4R

abbreviation:  USNR officer designation. See SA4 and R. Formerly S(A4)-R.

SA4T

abbreviation:  USNR officer designation. See SA4 and T. Formerly S(A4)-T.

SA4X

abbreviation:  USNR officer designation. See SA4 and X. Formerly S(A4)-X.

SA5

abbreviation:  USNR officer designation for Special Service, Heavier-than-Air Pilot. Formerly S(A5).

SA5N

abbreviation:  USNR officer designation. See SA5 and N. Formerly S(A5)-N.

SA5R

abbreviation:  USNR officer designation. See SA5 and R. Formerly S(A5)-R.

SA5T

abbreviation:  USNR officer designation. See SA5 and T. Formerly S(A5)-T.

SA5X

abbreviation:  USNR officer designation. See SA5 and X. Formerly S(A5)-X.

SA6

abbreviation:  USNR officer designation for Special Service, Lighter-than-Air Pilot. Formerly S(A6) and A-VT.

SA6N

abbreviation:  USNR officer designation. See SA6 and N. Formerly S(A6)-N.

SA6R

abbreviation:  USNR officer designation. See SA6 and R. Formerly S(A6)-R.

SA6T

abbreviation:  USNR officer designation. See SA6 and T. Formerly S(A6)-T.

SA6X

abbreviation:  USNR officer designation. See SA6 and X. Formerly S(A6)-X.

SAA

abbreviation:  Small Arms Ammunition

SAC

abbreviation:  Supreme Allied Command

SAC

abbreviation:  Supreme Allied Commander

SACMED

abbreviation:  Supreme Allied Command(er), Mediterranean

SACO

abbreviation:  Sino-American Cooperative Organization

SACSEA

abbreviation:  Supreme Allied Command(er), Southeast Asia

SAD

abbreviation:  Special Artificer, Special Synthetic Training Devices

SAD

abbreviation:  Support Air Direction

SADMG

abbreviation:  Special Artificer, Special Devices, Machine Gun Trainer

SAF

abbreviation:  Southern Attack Force

SAF

abbreviation:  Strategic Air Force

safety treads

nautical:  A special nonslipping metal plate fitted to the deck at the foot of a ladder or stairway and often fitted on the upper surface of the steps of ladders and stairs. Steps made of safety treads are called safety steps.

SAFPlan

abbreviation:  Submarine Area Frequency Plan

sagging

nautical:  The deformation or yielding caused when the middle portion of a structure or ship settles or sinks below its designed or accustomed position. The reverse of hogging.

SAI

abbreviation:  Special Artificer, Instruments

SAIC

abbreviation:  Small Arms Interpost Competition

sail tracks

nautical:  A device fitted on the after side of a mast in which slides, secured to the forward edge of a fore- and-aft sail, travel up and down the mast as the sail is hoisted or lowered; used in lieu of mast hoops.

Sail

abbreviation:  "S" in the phonetic alphabet; now obsolete and replaced by "Sugar"

SAITR

abbreviation:  Special Artificer, Instruments, Typewriter and Office Equipment Repairman

SAIWR

abbreviation:  Special Artificer, Instruments, Watch Repairman

SAL DIVES

abbreviation:  Salvage Dives

SAL

abbreviation:  Salvage

SALED

abbreviation:  Sailed

Sally

glossary:  Twin Engine Mitsubishi Ki-21 Bomber.

Salvo fire

orders:  When two or more guns of the same battery fire at once at the same target.

samson post

nautical:  A strong vertical post that supports cargo booms. See king posts.

SAN

abbreviation:  USNR officer designation. See SA and N. Formerly S(A)-N.

SandA

abbreviation:  Bureau of Supplies and Accounts

SandFran

abbreviation:  San Francisco, California

SandFSD

abbreviation:  Sea and Foreign Service Duty

SAO

abbreviation:  Special Artificer, Optical

SAO

abbreviation:  Support Air Observation

SAP

abbreviation:  Scouting Amphibian Plan (USCG)

SAP

abbreviation:  Semi-Armor Piercing

SAP

abbreviation:  Spot Authorization Plan (WPB)

SAPC

abbreviation:  Small Arms Post Competition

SAR Net

abbreviation:  Support Air Request Net (Communications)

SAR

abbreviation:  Semi-Automatic Rifle (Army)

SAR

abbreviation:  USNR officer designation. See SA and R. Formerly S(A)-R.

SASAT

abbreviation:  Shipboard Anti-Submarine Attack Teacher

Sat

abbreviation:  Saturated

SAT

abbreviation:  USNR officer designation. See SA and T. Formerly S(A)-T.

SATFor

abbreviation:  Special Air Task Force

SATP

abbreviation:  Small arms Target Practice

SAV

abbreviation:  Allotment for Savings

SAVBOND

abbreviation:  Allotment for purchase of War Savings Bonds

SAX

abbreviation:  USNR officer designation. See SA and X. Formerly S(A)-X.

SB&DDCo

Bureau of Personnel Condensation Code:  Shipbuilding & Drydock Co. (Federal, Newport News, Sun)

SB

abbreviation:  First two letters in the Navy aircraft designation, indicating a scouting-bombing plane

SB

abbreviation:  Secondary Battery

SB

abbreviation:  Submarine Base

SB

abbreviation:  Switchboard Operator

Sb

abbreviation:  Switchboard

SB

Bureau of Personnel Condensation Code:  Shipbuilding

SB2A-#

abbreviation:  "Bermuda"; single-engine Navy scout-bomber (VSB), manufactured by Brewster

SB2C-#

abbreviation:  "Helldiver"; single-engine Navy scout-bombers (VSB), manufactured by Curtiss

SB2U-#

abbreviation:  "Vindicator"; single-engine Navy scout-bomber (VSB), manufactured by Vought-Sikorsky

SBAE

abbreviation:  Stabilized Bombing Approach Equipment

SBC-#

abbreviation:  Single-engine Navy scout-bomber (VSB), biplane, manufactured by Curtiss

SBCo

abbreviation:  Shipbuilding Company

SBCorp

abbreviation:  Shipbuilding Corporation

SBD-#

abbreviation:  "Dauntless"; single-engine Navy scout-bomber (VSB), manufactured by Douglas

SBDC

Bureau of Personnel Condensation Code:  Shipbuilding and Drydock Company

SBF-#

abbreviation:  "Helldiver"; single-engine Navy scout-bomber (VSB), manufactured by Fairchild (Canada)

SBN-#

abbreviation:  Single-engine Navy scout-bomber (VSB), manufactured by Naval Aircraft Factory

SBNO

abbreviation:  Senior British Naval Officer (U.S. controlled port)

SBNOWA

abbreviation:  Senior British Naval Officer, Western Atlantic

SBP

abbreviation:  Summary Plot Board

SBS

abbreviation:  Strategic Balkan Services

SBU-#

abbreviation:  Single-engine Navy scout-bomber (VSB), biplane, manufactured by Chance-Vought

SBW-#

abbreviation:  "Helldiver"; single-engine Navy scout-bomber (VSB), manufactured by Canadian Car and Foundry

SC-#

abbreviation:  "Seahawk"; single-engine Navy observation-scout (VOS), manufactured by Curtiss

SC-V(G)

abbreviation:  USNR officer designation for supply officers, commissioned and warrant, including pay clerks, qualified for general detail afloat or ashore. This classification was abolished in September 1944 and replaced by SC or SC(S).

SC-V(P)

abbreviation:  USNR officer designation for supply officers (General Service), commissioned in probationary status, and, after qualification and transfer to SC-V(G), available for general detail afloat or ashore. This classification was abolished in September 1944 and replaced by SC(S).

SC-V(S)

abbreviation:  USNR officer designation for supply officers, commissioned and warrant, qualified for specialist duties. This classification was abolished in September 1944 and replaced by SC or SC(S).

SC(C)

abbreviation:  Submarine Chaser (110’) (Control)

SC

abbreviation:  Halifax Slow to United Kingdom (routing designation)

SC

abbreviation:  Radar type designation for shipborne equipment used in air search

SC

abbreviation:  Ship’s Cook

SC

abbreviation:  Signal Corps (Army)

SC

abbreviation:  Strato-cumulus

SC

abbreviation:  Submarine Chaser (110’)

SC

abbreviation:  Summary Court

SC

abbreviation:  Supply Corps

SC

abbreviation:  USN officer designation for Supply Corps

SC1

abbreviation:  USNR officer designation for Special Service, Special Communications Duties. Formerly S(C1) and C-VL.

SC1N

abbreviation:  USNR officer designation. See SC1 and N. Formerly S(C1)-N.

SC1R

abbreviation:  USNR officer designation. See SC1 and R. Formerly S(C1)-R.

SC1T

abbreviation:  USNR officer designation. See SC1 and T. Formerly S(C1)-T.

SC1X

abbreviation:  USNR officer designation. See SC1 and X. Formerly S(C1)-X.

SC2

abbreviation:  USNR officer designation for Special Service, Special Communications Duties. Formerly S(C2) and C-VX.

SC2N

abbreviation:  USNR officer designation. See SC2 and N. Formerly S(C2)-N.

SC2R

abbreviation:  USNR officer designation. See SC2 and R. Formerly S(C2)-R.

SC2T

abbreviation:  USNR officer designation. See SC2 and T. Formerly S(C2)-T.

SC2X

abbreviation:  USNR officer designation. See SC2 and X. Formerly S(C2)-X.

SCAEF

abbreviation:  Supreme Commander, Allied Expeditionary Force

SCAJAP

abbreviation:  Shipping Control Administrator Japan

Scale (Usually in mils - but sometimes arbitrary)

orders:  Set deflection in mils on the deflection scale.

scantlings

nautical:  A term applied to the dimensions of the frames, girders, plating, etc., that enter into a ship’s structure.

SCAO

abbreviation:  Senior Civil Affairs Officer

SCAP

abbreviation:  Supreme Commander Allied Powers (Japan)

SCAR

abbreviation:  South Carolina

scarf

nautical:  An end connection made between two pieces of material by tapering them so that they will fit together in a joint of the same breadth and depth as the pieces.

SCAT

abbreviation:  Service Command Air Transportation

SCAT

abbreviation:  South Pacific Combat Air Transport (USMC)

SCB

abbreviation:  Ship’s Cook, Butcher

SCD

abbreviation:  Supply, Commissary and Disbursing

SCE

abbreviation:  Superintending Civil Engineer (GB)

SCF

abbreviation:  Support Carrier Force

Sch

abbreviation:  School

SCI

abbreviation:  Ship Controlled Intercept (radar)

SCI

abbreviation:  Supervisory Cost Inspector

SClk

abbreviation:  Ship’s Clerk

SCM

abbreviation:  Sender’s Composition Message

SCM

abbreviation:  Summary Court Martial

SCM

abbreviation:  USNR officer designation for General Service, Supply Corps, Merchant Marine. Formerly SC-M.

SCMR

abbreviation:  USNR officer designation for General Service, Supply Corps, Merchant Marine. Formerly SCM.

SCO

abbreviation:  Scouting

SCOFA

abbreviation:  Shipping Control Office, Forward Area

ScoFor

abbreviation:  Scouting Force

SCOL

abbreviation:  School

SCOM

abbreviation:  USNR officer designation for Special Service, Communications Duties. Formerly S(C).

SCOMA

abbreviation:  Shipping Control Office, Marianas

SCON

abbreviation:  USNR officer designation. See SCOM and N. Formerly S(C)-N.

SCOR

abbreviation:  USNR officer designation. See SCOM and R. Formerly S(C)-R.

ScoRon

abbreviation:  Scouting Squadron

SCOROR

abbreviation:  Secretary’s Committee on Research on Reorganization (Navy)

SCOT

abbreviation:  USNR officer designation. See SCOM and T. Formerly S(C)-T.

Scotch

abbreviation:  Firetube boiler

SCOTRACEN

Bureau of Personnel Condensation Code:  Scouting Training Center

SCOX

abbreviation:  USNR officer designation. See SCOM and X. Formerly S(C)-X.

Scr. Bhd.

blueprints:  Screen Bulkhead.

SCR(number)

abbreviation:  Signal Corps Radio (number) (Army)

SCR

abbreviation:  Summary Control Report (Planning and Production)

SCR

abbreviation:  USNR officer designation for General Service, Supply Corps. Formerly SC.

screen bulkhead

nautical:  A light bulkhead used as a shelter from an excess of heat, cold, or light, or to conceal something from sight.

screw

glossary:  The propeller of a ship.

scrieve board

nautical:  A large board made of soft, clear, planed lumber, sometimes a section of the mold loft floor, on which a full-sized body plan of a ship is drawn. The lines were formerly cut in by the use of a scriving knife, which made a small U-shaped groove, to prevent them from being obliterated. Pencil lines have taken the place of cutting to a large extent. It is used in making templates of frames, beams, floors, etc., and in taking off dimensions. It is sanded smooth after it has served its purpose.

Scrub and wash clothes or pipe down your scrubbed and washed clothes

orders:  Order to wash clothes after the decks are wet down.

Scrub bags (hammocks or mattress covers) (as the case may be)

orders:  Order given on certain days after the washing of clothes.

Scrub down the decks with (without) sand; Scrub the paint work

orders:  Perform this work as directed.

SCS

abbreviation:  USNR officer designation for Special Service, Supply Corps. Formerly SC(S).

SCTC

abbreviation:  Submarine Chaser Training Center

SCTD

abbreviation:  Scattered

SCTraCen

abbreviation:  Submarine Chaser Training Center

scupper pipe

nautical:  A pipe conducting the water from a deck scupper to a position where it is discharged overboard.

scuppers

nautical:  Drains from decks to carry off accumulations of rain water or sea water. The scuppers are placed in the gutters or waterways on open decks and in corners of enclosed decks, and connect to pipes leading overboard.

scuttle butt

nautical:  The designation for a container of the supply of drinking water for the use of the crew.

scuttle

nautical:  A small opening, usually circular in shape and generally fitted in decks to provide access. Often termed escape scuttles, and when fitted with means whereby the covers can be removed quickly to permit exit, are called quick acting scuttles.

SCW

abbreviation:  USNR officer designation for Women’s Reserve, Supply Corps. Formerly SC(W).

SD

abbreviation:  Aircraft detection radar for submarines

SD

abbreviation:  Special Duty

SD

abbreviation:  Spectacle Dispenser

SD

abbreviation:  Supply Department

SDA

abbreviation:  San Diego, California

SDAK

abbreviation:  South Dakota

SDC

abbreviation:  Southern Defense Command (Army)

SDEM

abbreviation:  USNR officer designation for Special Service, Deck and Engineering Duties, Merchant Marine. Formerly S (DEM).

SDEN

abbreviation:  USNR officer designation. See SDEM and N. Formerly S(DEM)-N.

SDER

abbreviation:  USNR officer designation. See SDEM and R. Formerly S(DEM)-R.

SDET

abbreviation:  USNR officer designation. See SDEM and T. Formerly S(DEM)-T.

SDEX

abbreviation:  USNR officer designation. See SDEM and X. Formerly S(DEM)-X.

SDGA

abbreviation:  Single Degaussing Cable

SDHIRS

abbreviation:  Sub-District Headquarters Induction and Recruiting Station

SDM

abbreviation:  USNR officer designation for Special Service, Deck Duties, Merchant Marine. Formerly S(DM).

SDMN

abbreviation:  USNR officer designation. See SDM and N. Formerly S(DM)-N.

SDMR

abbreviation:  USNR officer designation. See SDM and R. Formerly S(DM)-R.

SDMT

abbreviation:  USNR officer designation. See SDM and T. Formerly S(DM)-T.

SDMX

abbreviation:  USNR officer designation. See SDM and X. Formerly S(DM)-S.

SDO

abbreviation:  Specialist Duty Only

SDO

abbreviation:  Staff Duty Officer

SDO

abbreviation:  Station Duty Officer

SdOpr

abbreviation:  Sound Operator

SE

abbreviation:  Single Engine

SE

abbreviation:  Single-ended, cylindrical boiler

SE

abbreviation:  Southeast

SE

abbreviation:  USNR officer designation for Special Service, Engineering Duties. Formerly S(E).

SE1

abbreviation:  USNR officer designation for Special Service, Special Engineering Duties, equivalent to EDO Hull. Formerly S(E1)

SE1N

abbreviation:  USNR officer designation. See SE1 and N. Formerly S(E1)-N.

SE1R

abbreviation:  USNR officer designation. See SE1 and R. Formerly S(E1)-R.

SE1T

abbreviation:  USNR officer designation. See SE1 and T. Formerly S(E1)-T.

SE1X

abbreviation:  USNR officer designation. See SE1 and X. Formerly S(E1)-X.

SE2

abbreviation:  USNR officer designation for Special Service, Special Engineering Duties, equivalent to EDO Machinery. Formerly S(E2)

SE2N

abbreviation:  USNR officer designation. See SE2 and N. Formerly S(E2)-N.

SE2R

abbreviation:  USNR officer designation. See SE2 and R. Formerly S(E2)-R.

SE2T

abbreviation:  USNR officer designation. See SE2 and T. Formerly S(E2)-T.

SE2X

abbreviation:  USNR officer designation. See SE2 and X. Formerly S(E2)-X.

SE3

abbreviation:  USNR officer designation for Special Service, Special Engineering Duties, equivalent to EDO Electrical. Formerly S(E3)

SE3N

abbreviation:  USNR officer designation. See SE3 and N. Formerly S(E3)-N.

SE3R

abbreviation:  USNR officer designation. See SE3 and R. Formerly S(E3)-R.

SE3T

abbreviation:  USNR officer designation. See SE3 and T. Formerly S(E3)-T.

SE3X

abbreviation:  USNR officer designation. See SE3 and X. Formerly S(E3)-X.

SE4

abbreviation:  USNR officer designation for Special Service, Special Engineering Duties, equivalent to EDO Diesel. Formerly S(E4)

SE4R

abbreviation:  USNR officer designation. See SE4 and R. Formerly S(E4)-R.

SE4T

abbreviation:  USNR officer designation. See SE4 and T. Formerly S(E4)-T.

SE4X

abbreviation:  USNR officer designation. See SE4 and X. Formerly S(E4)-X.

sea chest

nautical:  An arrangement for supplying sea water to condensers and pumps, and for discharging waste water from the ship to the sea. It is a cast fitting or a built-up structure located below the waterline of the vessel and having means for attachment of the piping. Suction sea chests are fitted with strainers or gratings.

Sea Clutter

abbreviation:  Echo from surface of sea (sea return) (radar)

sea cock, sea connection

nautical:  A sea valve secured to the plating of the vessel below the waterline for use in flooding tanks, magazines, etc., to supply water to pumps, and for similar purposes.

Sea Painter

glossary:  A line over the side of the ship to secure a small boat or punt for examining or painting the side of the ship.

SEA

abbreviation:  Ships Editorial Association

SEA

abbreviation:  Southeast Asia (Theater)

Seabee

abbreviation:  Member of a Construction Battalion (CB)

SeaC

abbreviation:  Seacoast

SEAC

abbreviation:  Southeast Asia Command

SEAFRON

abbreviation:  Sea Frontier

Seagull

abbreviation:  See SOC-#, SO3C-#, SON-#

Seahawk

abbreviation:  See SC-#

seam

nautical:  A term applied to an edge joint.

seamstrap

nautical:  A term applied to a strip of plate serving as a connecting strap between the butted edges of plating. Strap connections at the ends are called buttstraps.

searchlight

nautical:  A powerful electric lamp placed at the focus of a mirror, which projects the light in abeam of parallel rays.

SeaS

abbreviation:  Sea School (USMC)

SEATIC

abbreviation:  Southeast Asia Translation and Interrogation Center

SEATL

abbreviation:  Seattle, Washington

Seawolf

abbreviation:  See TBY-#

Sec

abbreviation:  Second

SEC

abbreviation:  Secretary (to the) (of)

SEC

abbreviation:  Sector

SecNav

abbreviation:  Secretary of the Navy

Secondary control

orders:  Any secondary method of gun control resorted to when primary method has failed. It includes telescope control, local control, and indicating control.

SECP

abbreviation:  Division of Shore Establishments and Civilian Personnel (formed by merger of SOSED and PS&M in 1944; renamed OIR in 1945)

Secr

abbreviation:  Secret

SECT

abbreviation:  Section

SecTaskFlt

abbreviation:  Second Task Fleet

SectBase

abbreviation:  Section Base

Secure From Battle Stations General Quarters (Set Condition Two/Three, Watch 1, or 2, or 3)

orders:  Certain battle stations are made fast or secured, and others left manned according to the condition of readiness ordered.

Secure from darkened ship or Light ship

orders:  Resume conditions of lighted ship. The smoking lamp is lighted unless otherwise ordered.

Secure from general quarters (Set condition II/III watch 1/2/3)

orders:  A command from Conn, repeated by Control, to secure or set condition of readiness designated.

Secure the anchor

orders:  Stow the anchor and secure it for sea.

SecWar

abbreviation:  Secretary of War

SED

abbreviation:  Shore Establishments Division

SEFIC

abbreviation:  Seventh Fleet Intelligence Center

SEM

abbreviation:  USNR officer designation for Special Service, Engineering Duties, Merchant Marine. Formerly S(EM).

Sema

abbreviation:  Semaphore

SEMN

abbreviation:  USNR officer designation. See SEM and N. Formerly S(EM)-N.

SEMR

abbreviation:  USNR officer designation. See SEM and R. Formerly S(EM)-R.

SEMT

abbreviation:  USNR officer designation. See SEM and T. Formerly S(EM)-T.

SEMX

abbreviation:  USNR officer designation. See SEM and X. Formerly S(EM)-X.

Sen

abbreviation:  Senator

SEN

abbreviation:  Senior

SEN

abbreviation:  USNR officer designation. See SE and N. Formerly S(E)-N.

SEN4

abbreviation:  USNR officer designation. See SE4 and N. Formerly S(E4)-N.

SENAVAV

abbreviation:  Senior Naval Aviator

Sent conf

abbreviation:  Sentence to be confined

Sent LP

abbreviation:  Sentenced to lose pay

Sent

abbreviation:  Sentence

Sentinel

abbreviation:  See OY-#

Sep

abbreviation:  Separate

SEPacFor

abbreviation:  Southeast Pacific Force

SepCen

abbreviation:  Separation Center

SER

abbreviation:  Serial

Ser

abbreviation:  Serve; service; serving

SER

abbreviation:  USNR officer designation. See SE and R. Formerly S(E)-R.

SerForSoPacSubCom

abbreviation:  Service Force South Pacific Subordinate Command

Seron

abbreviation:  Service Squadron

SERRON

abbreviation:  Service Squadron

SERV NO

abbreviation:  Service Number

SERV

abbreviation:  Service

ServComFMFPac

abbreviation:  Service Command, Fleet Marine Force, Pacific

ServDiv

abbreviation:  Service Division

serve

nautical:  To wrap any small stuff tightly around a rope which has been previously wormed and parcelled. Very small ropes are not wormed.

ServFor

abbreviation:  Service Force

ServLant

abbreviation:  Service Force, Atlantic Fleet

ServLantSubOrdComd

abbreviation:  Service Force, Atlantic Fleet, Subordinate Command

Servon

abbreviation:  Service Squadron

ServPac

abbreviation:  Service Force, Pacific Fleet

Servron

abbreviation:  Service Squadron

ServSoWesPac

abbreviation:  Service Force, Southwest Pacific Fleet

SES

abbreviation:  Physically on board serving sentence of court martial, not ship’s company

SES

abbreviation:  Strategic Engineering Survey

SESE

abbreviation:  Secure Echo-Sounding Equipment (sonar)

set iron

nautical:  A bar of soft iron used on the bending slab as a form to which to bend frames into the desired shape.

Set switch in automatic

orders:  The switch is set so that pointer and training motors are controlled by the director.

Set switch in local high

orders:  The switch is set in local high when the control is at the gun, and it is necessary to train and elevate rapidly.

Set switch in local low

orders:  The switch is set in local low when the control is at the gun, and it is necessary to train and elevate slowly.

Set taut

orders:  Take in the slack and take a strain on running gear preparatory to heaving it in. This is given before the order "Hoist Away".

set up

nautical:  To tighten the nut on a bolt or stud; to bring the shrouds of a mast to a uniform and proper tension by adjusting the rigging screws or the lanyards through the dead eyes.

set, permanent set

nautical:  The permanent deformation resulting from the stressing of an elastic material beyond its elastic limit.

Set. Tk.

blueprints:  Settling Tank.

SET

abbreviation:  USNR officer designation. See SE and T. Formerly S(E)-T.

setscrew

nautical:  A machine screw with either a slotted or a square head used to hold a part in place.

Sett

abbreviation:  Settlement

SETT

abbreviation:  Submarine Escape Training Tank

SEV

abbreviation:  Severn

SEVENPERDAIR

Bureau of Personnel Condensation Code:  A per diem of seven dollars in lieu of subsistence will be allowed while in an air travel status

SEX

abbreviation:  USNR officer designation. See SE and X. Formerly S(E)-X.

SF

abbreviation:  San Francisco, California

SF

abbreviation:  Scouting Force

SF

abbreviation:  Shipfitter

SF

abbreviation:  Surface Search Radar

SFCB

abbreviation:  Shipfitter, Construction Battalion

SFCBB

abbreviation:  Shipfitter, Construction Battalion, Blacksmith

SFCBP

abbreviation:  Shipfitter, Construction Battalion, Pipe Fitter and Plumber

SFCBR

abbreviation:  Shipfitter, Construction Battalion, Rigger

SFCBS

abbreviation:  Shipfitter, Construction Battalion, Steelworker

SFCBW

abbreviation:  Shipfitter, Construction Battalion, Welder

SFCMB

abbreviation:  Shipfitter, Construction Battalion, Mechanical Draftsman

SFCP

abbreviation:  Shore Fire Control Party

SFDS

abbreviation:  Standby Fighter Director Ship

SFIC

abbreviation:  San Francisco Information Center (Army Air Warning Service)

SFNSY

abbreviation:  San Francisco Naval Shipyard

SFPOE

abbreviation:  San Francisco Port of Embarkation

SFSR

abbreviation:  Shipfitter, Ship Repair

SFSRC

abbreviation:  Shipfitter, Ship Repair, Chipper-Caulker

SFSRD

abbreviation:  Shipfitter, Ship Repair, Diver

SFSRF

abbreviation:  Shipfitter, Ship Repair, Steelworker-Anglesmith

SFSRL

abbreviation:  Shipfitter, Ship Repair, Driller-Reamer

SFSRP

abbreviation:  Shipfitter, Ship Repair, Pipe Fitter-Plumber

SFSRR

abbreviation:  Shipfitter, Ship Repair, Riveter

SFSRS

abbreviation:  Shipfitter, Ship Repair, Shipfitter

SFSRW

abbreviation:  Shipfitter, Ship Repair, Welder

SG

abbreviation:  Qualified in Submarines (limited)

SG

abbreviation:  Surface Search Radar

SG

abbreviation:  Surgeon General (Army)

SG

abbreviation:  Sydney or St. Johns, Newfoundland to Greenland (routing designation)

Sgl

abbreviation:  Single Reduction Gears

SGP

abbreviation:  Secondary Gun Pointer

Sgt

abbreviation:  Sergeant

SgtMaj

abbreviation:  Sergeant Major

shackle bolt

nautical:  A pin or bolt that passes through both eyes of a shackle and completes the link. The bolt may be secured by a pin through each end, or a pin through one end and through the eye, or by having one end and one eye threaded or one end headed and a pin through the other.

SHAEF

abbreviation:  Supreme Headquarters, Allied Expeditionary Force

shaft alley

nautical:  A watertight passage, housing the propeller shafting from the engine room to the bulkhead at which the stern tube commences. It provides access to the shafting and its bearings and also prevents any damage to the same from the cargo in the spaces through which it passes.

shaft angle

nautical:  The angle between the center line of the shaft and the center line of the ship is the horizontal angle and the angle between the center line of the shaft and either the base line or the designed waterline is the vertical angle.

shaft coupling

nautical:  The means of joining together two sections of a shaft, usually by means of bolts through flanges on the ends of the sections of the shafts.

shaft pipe

nautical:  See Stern Tube.

shaft strut

nautical:  A term applied to a bracket supporting the outboard after end of the propeller shaft and the propeller in twin or multiple-screwed vessels having propeller shafts fitted off the center line. It usually consists of a hub or boss, fitted with a bushing, to form a bearing for the shaft, and two streamlined arms connecting it to the side of the ship. The inboard ends of the arms are fitted with palms for attachment to the shell or to interior framing.

shaft, shafting

nautical:  The cylindrical forging, solid or tubular, used for transmission of rotary motion from the source of power, the engine, to the propellers.

shakes

nautical:  Splits or checks in timbers which usually cause a separation of the wood between annular rings. A ring shake is an opening between annular rings; a through shake is an opening which extends between two faces of a timber.

shape

nautical:  A bar of constant cross section such as a channel, T-bar, angle bar, etc., either rolled or extruded.

shaping

nautical:  Cutting, bending, and forming a structural member.

SHC

abbreviation:  Superheat Control (boilers)

She does not answer helm, sir

orders:  A report from the steersman that there is lack of steerageway, or a casualty to the rudder mechanism. Example, "Ship’s head is swinging left, Sir, rudder is full right; ship does not answer helm."

shear legs

nautical:  A rig for handling heavy weights, consisting of an A-frame of timber or steel with the top overhanging the base, having the lower ends fixed or pivoted and the top ends held either by fixed stays or by topping lifts which permit change of slope of the legs. Tackles are secured at the top of the frame through which the hoisting rope or cable is run. Sometimes called sheers.

shears

nautical:  Large machines for cutting plates or shapes.

sheathing

nautical:  A term applied to the wood planking fitted over a steel deck, to the planking fitted over the underwater portion of a steel hull, and to the copper or alloy sheets with which the bottom of a wood ship, or a steel ship sheathed with wood, is covered.

sheave holes

nautical:  A term applied to apertures in masts, booms, and spars in which sheaves are installed.

sheave

nautical:  A wood or metal disk, having a groove around its cylindrical surface to permit a rope or chain to run over it without slipping off and a bushing for bearing on the pin or bolt on which it revolves.

sheer plan

nautical:  A side elevation of the ship’s form.

sheer strake

nautical:  The topmost continuous strake of the shell plating, usually made thicker than the side plating below it.

sheer

nautical:  The longitudinal curve of a vessel’s rails, decks, etc. the usual reference being to the ship’s side; however, in the case of a deck having a camber, its center line may also have a sheer. The amount by which the height of the weather deck at the after or forward perpendicular exceeds that at its lowest point.

shelf

nautical:  A wood ship term applied to the fore and aft timber that is fastened to the frames to form a support for the ends of the beams. See clamp.

shell expansion

nautical:  A plan showing the shapes, sizes, and weights of all plates comprising the shell plating, and details of the connections.

shell landings

nautical:  Points marked on the frames to show where the edges of the shell plates are to be located.

shelter deck

nautical:  A term applied to a deck fitted from stem to stern on a relatively light superstructure.

SHF

abbreviation:  Super High Frequency

shift of butts

nautical:  An arrangement of butts in longitudinal or transverse structural members whereby the butts of adjacent members are located a specified distance from one another, measured in the line of the members.

Shift steering control to the conning tower

orders:  Engage conning tower steering wheel and take steering control at Conn.

Shift the rudder

orders:  Change from right to left or left to right rudder using the same amount on the opposite side.

Shift to automatic

orders:  Guns cut in the power drives and receiver regulators and follow the director automatically by remote control.

Shift to indicating

orders:  Gun pointers and trainers use their handwheels to train and elevate the gun, and matching pointers or zero readers in their indicators. Fuze settings indicated by fuze setting indicators.

Shift to telescope

orders:  Gun pointers and trainers use their handwheels to train and elevate the gun and sight through their gunsight telescopes.

Shift to uniform of the day

orders:  All hands shift into uniform of the day except as directed to do otherwise.

shim

nautical:  (In naval architecture). A piece of wood or iron let into a slack place in a frame, plank, or plate to fill out a fair surface or line. Also applied to thin layers of metal or other material used to true up a bed plate or machine or inserted in bearings to permit adjustment after wear of the bearing.

Ship

abbreviation:  Shipboard

shipshape

nautical:  A nautical term used to signify that the whole vessel, or the portion under discussion, is neat in appearance and in good order.

Shltr. Dk.

blueprints:  Shelter Deck.

SHO

abbreviation:  Shore

shoal

nautical:  A small of timber or plank placed under the heel of a shore.

Shoot

orders:  A command to the director or to a gun to fire a salvo or split salvo. (It is used when the control officer wishes to control personally the rate of fire.)

shore, spur or side

nautical:  A piece of timber placed in a nearly horizontal position with one end against the side of the ship and the other against the side of a dry dock or dock to keep the vessel at a desired distance from the face of the dock.

shores

nautical:  Pieces of timber placed in a vertical or inclined position to support some part of a ship, or the ship itself, during construction or while in dry dock.

SHOROUTFUBINT

Bureau of Personnel Condensation Code:  The Secretary of the Navy has determined that this employment on shore duty beyond the seas is required by the public interests

SHORPUNINT

Bureau of Personnel Condensation Code:  The Secretary of the Navy has determined that this employment on shore duty is required by the public interests

SHOTS

abbreviation:  A Gunner’s Mate in charge of a small AA gun (20mm, 50cal)

SHP

abbreviation:  Shaft horsepower

shrapnel

glossary:  Metal fragments from shell/bomb explosion.

shroud

nautical:  A principal member of the standing rigging, consisting of hemp or wire ropes which extend from or near a masthead to the vessel’s side, or to the rim of a top, to afford lateral support for the mast.

SI

abbreviation:  USNR officer designation for Special Service, Intelligence Duties. Formerly S(I).

SIA

abbreviation:  Air Intelligence Service (Italy)

sick bay

nautical:  A name applied to the space on board a ship where members of the crew and passengers are given medical service and includes the dispensary, operating room, wards, etc.

SID

abbreviation:  Security and Intelligence Service (Army)

side plating

nautical:  A term applied to the plating above the bilge in the main body of a vessel. Also to the sides of deck houses, or to the vertical sides of enclosed plated structures.

siding of a frame

nautical:  The fore and aft dimension of a frame.

SIG

abbreviation:  Signal

SIGCUM

abbreviation:  Communications Security Publication-151- (Army)

Sight angle

orders:  Set the sight angle in minutes on the sight angle dial.

SIGSALY

abbreviation:  Scrambled voice transmission (Army)

Sigtot

abbreviation:  Signal Corps One-Time Tape

Silence

orders:  Used in case of serious casualty, or in case of doubt as to the seriousness of the casualty. On this command every member of the gun crew, ammunition party and all in the vicinity, freeze in their tracks and remain there motionless without noise or confusion until further orders are given, or they hear the command "Carry On". All operating machinery (hoists, train, elevation, etc.), should be stopped!

SILO

abbreviation:  Security Intelligence Liaison office (Central Mediterranean Forces)

SIM

abbreviation:  Servizio Informazioni Militaire (Italy)

SIME

abbreviation:  Security Intelligence, middle East

SIN

abbreviation:  USNR officer designation. See SI and N. Formerly S(I)-N.

Single up

orders:  Take in all additional parts, leaving a single line at each station.

SINO

abbreviation:  Chines

SIO

abbreviation:  Ship’s Information Officer

SIR

abbreviation:  USNR officer designation. See SI and R. Formerly S(I)-R.

SIS

abbreviation:  Naval Intelligence Service (Italy)

SIS

abbreviation:  Secret Intelligence Service (GB)

sister hook

nautical:  A hook made in halves and set on eyes facing each other in such a manner that it may be made to function as a link.

SIT

abbreviation:  Situation

SIT

abbreviation:  USNR officer designation. See SI and T. Formerly S(I)-T.

SIW

abbreviation:  Self-inflicted wound

SIX

abbreviation:  USNR officer designation. See SI and X. Formerly S(I)-X.

SJ

abbreviation:  San Juan, Puerto Rico

SJ

abbreviation:  Surface search radar for submarines

SK

abbreviation:  Air search radar (shipborne)

Sk

abbreviation:  Sketch

SK

abbreviation:  Storekeeper

SKCB

abbreviation:  Storekeeper, Construction Battalion, Stevedore

SKD

abbreviation:  Storekeeper, Disbursing

Sked

abbreviation:  Schedule

skeg

nautical:  The extreme after part of the keel of a vessel, the portion that supports the rudder post and stern post.

Skiatron

abbreviation:  British term for Projection Plan Position Indicator (PPPI)

skin

nautical:  The term usually applied to the outside planking or plating forming the watertight envelope over the framework. It is also applied to the inner bottom plating when it is called an inner skin.

SKT

abbreviation:  Storekeeper, Technical

SKV

abbreviation:  Storekeeper, Aviation

skylight

nautical:  An erection built on a deck, having glass lights in its top and fitted over an opening in the deck for the purpose of admitting light and air to a compartment below.

Skymaster

abbreviation:  See R5D-4

Skytrain

abbreviation:  See R4D-1-5-6-7

Skytrooper

abbreviation:  See R4D-2-3 -4

SL

abbreviation:  Large signal search light

SL

abbreviation:  Submarine Qualification Lapsed

SL

abbreviation:  Support line

SL

abbreviation:  Surface search radar

SL

abbreviation:  USNR officer designation for Special Service, legal Specialist. Formerly S(L).

Slack away

orders:  Pay out the line, allowing it to form ann easy bight.

Slack off halyards

orders:  To give slack to the hoisting lines in wet weather to prevent lines from becoming too taut.

Slack three

orders:  Take off turns and give the line slack.

slack

nautical:  The opposite of taut; not fully extended as applied to a rope; to "slack away" means to pay out a rope or cable by carefully releasing the tension while still retaining control; to "slack off" means to ease up, or lessen the degree of tautness.

Slack

orders:  Cast off all but one turn from the bitts and slack line so that it dips sufficiently to be observed as slack by the officer conning from the bridge. Do not allow line to sag into water.

SLCU

abbreviation:  Standard Landing Craft Unit

sleepers

nautical:  Timbers placed upon the ground or on top of piling to support the cribbing, keel, and bilge blocks.

sleeve

nautical:  A casing, usually of brass, fitted over line or other shafting for protection against wear or corrosion, or as a bearing surface.

sliding ways

nautical:  See launching.

sling

nautical:  A length of chain or rope employed in handling weights with a crane or davit. The rods, chains, or ropes attached near the bow and stern of a small boat into which the davit or crane tackle is hooked. The chain or rope supporting the yard at the masthead.

slip

nautical:  The difference between the pitch of a propeller, or the mean circumference of a paddle wheel, and the advance of the ship through the water corresponding to one revolution. An inclined launching berth. A space between two piers for berthing a vessel.

slipway or berth

nautical:  The space in a shipyard where a foundation for launching ways and keel blocks exists and which is occupied by a ship while under construction. The term berth is more properly applied to the space a ship occupies pier or at an anchorage.

SLN

abbreviation:  USNR officer designation. See SL and N. Formerly S(L)-N.

SLOE

abbreviation:  Special List of Equipment

Slow fire

orders:  Firing a salvo only after the one before it has landed and its spot has been applied.

SLP

abbreviation:  Scouting landplane

SLR

abbreviation:  USNR officer designation. See SL and R. Formerly S(L)-R.

SLt&SdL

abbreviation:  Searchlight and Sound Locator

SLT

abbreviation:  USNR officer designation. See SL and T. Formerly S(L)-T.

sluice

nautical:  An opening in the lower part of a bulkhead fitted with a sliding watertight gate, or small door, having an operating rod extending to the upper deck or decks. It is used to permit liquid in one compartment to flow into the adjoining compartment.

slush

nautical:  Grease, formerly obtained from the meat boiled in the coppers, used for lubrication and for slushing the spars after scraping them.

SLX

abbreviation:  USNR officer designation. See SL and X. Formerly S(L)-X.

SM

abbreviation:  Air and surface search radar

SM

abbreviation:  Salvage Mechanic

SM

abbreviation:  Shipment Memorandum

SM

abbreviation:  Signalman

SM

abbreviation:  Soldier’s Medal

Sm

abbreviation:  Steamotive

SM

abbreviation:  Submarine, Mine Laying

SMA

abbreviation:  Ship’s Material Account

SMACRATRACEN

Bureau of Personnel Condensation Code:  Small Craft Training Center

SMAW

abbreviation:  Second Marine Aircraft Wing

SMG

abbreviation:  Sub-Machine Gun

SMO

abbreviation:  Senior Medical Officer

smokestack

nautical:  A metal chimney or passage through which the smoke and gases are led from the uptakes to the open air.

Smoking lamp is lighted

orders:  Smoking is permitted throughout the ship, or in a designated area of the ship.

Smoking lamp is out (or out on the foc’sle)

orders:  No smoking is permitted in the ship or in a given area of the ship.

SMP

abbreviation:  Sound Motion Picture Technician

SMPO

abbreviation:  Sound Motion Picture Operator

SMR

abbreviation:  Special money Requisition

SMS

abbreviation:  Marine Service Squadron

SMSD

abbreviation:  Submarine Detector Ship’s Magnet

SN

abbreviation:  First two letters in the Navy aircraft designation, indicating a scout-training plane

SN

abbreviation:  Portable surface search radar

SN

abbreviation:  USNR officer designation. See S and N. Formerly (S)-N.

SNA

abbreviation:  Student Naval Aviator

SNAFU

abbreviation:  Situation Normal, All Fouled Up

SNAP(G)

abbreviation:  Student Naval Aviation Pilot (Glider)

SNAP

abbreviation:  Senior Naval Aviator Present

SNAP

abbreviation:  Student Naval Aviation Pilot

SNB-1

abbreviation:  "Kansan"; twin-engine Navy training plane (VSN(M)), manufactured by Beech

SNB-2-2C-2H

abbreviation:  "Navigator"; twin-engine Navy training plane (VSN), manufactured by Curtiss

SNC-#

abbreviation:  "Falcon"; Navy single-engine training plane (VN), manufactured by North American

SNJ-#

abbreviation:  "Texan"; Navy training plane (VN), manufactured by North American

SNL

abbreviation:  Standard Nomenclature List (Army)

SNM

abbreviation:  Senior Naval Member

SNOL

abbreviation:  Senior Naval Officer, Landings (GB)

SNOP

abbreviation:  Senior Naval Officer Present (US)

SNOPG

abbreviation:  Senior Naval Officer, Persian Gulf (GB)

SNORSCA

abbreviation:  Senior Naval Officer, Red Sea and Canal Area (GB)

SNOT

abbreviation:  Senior Naval Officer, Transport (GB)

Snow

abbreviation:  Receiver noise seen on PPI scope (amplitude indication)

SNTFC

abbreviation:  Senior Naval Task Force Commander

snubbing

nautical:  Drawing in the waterlines and diagonals of a vessel abruptly at their ends. The checking of a vessel’s headway by means of an anchor and a short cable. The checking of a line or cable from running out by taking a turn about a cleat, bitts, or similar fitting.

SNV-#

abbreviation:  "Valiant"; Navy training plane (VN), manufactured by Vultee

sny

nautical:  To twist a plate into an uneven warped shape on a mold.

SO

abbreviation:  First two letters in the Navy aircraft designation, indicating a scouting-observation plane

SO

abbreviation:  Radar type designation for shipborne equipment used in surface search

SO

abbreviation:  Secretary’s Office

SO

abbreviation:  South(ern)

SO

abbreviation:  Special Orders (Army)

SO

abbreviation:  Supply Officer

SO

abbreviation:  Surface search radar

SO

abbreviation:  USNR officer designation for Special Service, Ordnance Duties. Formerly S(O).

SO1

abbreviation:  USNR officer designation for Special Service, Special Ordnance Duties in Aviation Ordnance. Formerly S (C1).

SO1N

abbreviation:  USNR officer designation. See SO1 and N. Formerly S(O1)-N.

SO1R

abbreviation:  USNR officer designation. See SO1 and R. Formerly S(O1)-R.

SO1T

abbreviation:  USNR officer designation. See SO1 and T. Formerly S(O1)-T.

SO1X

abbreviation:  USNR officer designation. See SO1 and X. Formerly S(O1)-X.

SO2

abbreviation:  USNR officer designation for Special Service, Special Ordnance Duties in Aviation Ordnance. Formerly S (O2)

SO2N

abbreviation:  USNR officer designation. See SO2 and N. Formerly S(O2)-N.

SO2R

abbreviation:  USNR officer designation. See SO2 and R. Formerly S(O2)-R.

SO2T

abbreviation:  USNR officer designation. See SO2 and T. Formerly S(O2)-T.

SO2X

abbreviation:  USNR officer designation. See SO2 and X. Formerly S(O2)-X.

SO3

abbreviation:  USNR officer designation for Special Service, Special Ordnance Duties in Fire Control and Guns. Formerly S(O3).

SO3C-#

abbreviation:  "Seagull"; single-engine Navy scout-observation (VS) landplane and seaplane, manufactured by Curtiss

SO3N

abbreviation:  USNR officer designation. See SO3 and N. Formerly S(O3)-N.

SO3R

abbreviation:  USNR officer designation. See SO3 and R. Formerly S(O3)-R.

SO3T

abbreviation:  USNR officer designation. See SO3 and T. Formerly S(O3)-T.

SO3X

abbreviation:  USNR officer designation. See SO3 and X. Formerly S(O3)-X.

SO4

abbreviation:  USNR officer designation for Special Service, Special Ordnance Duties in Ammunition and Explosives. Formerly S(O4).

SO4N

abbreviation:  USNR officer designation. See SO4 and N. Formerly S(O4)-N.

SO4R

abbreviation:  USNR officer designation. See SO4 and R. Formerly S(O4)-R.

SO4T

abbreviation:  USNR officer designation. See SO4 and T. Formerly S(O4)-T.

SO4X

abbreviation:  USNR officer designation. See SO4 and X. Formerly S(O4)-X.

SO5

abbreviation:  USNR officer designation for Special Service, Special Ordnance Duties in Torpedoes. Formerly S(O5).

SO5N

abbreviation:  USNR officer designation. See SO5 and N. Formerly S(O5)-N.

SO5R

abbreviation:  USNR officer designation. See SO5 and R. Formerly S(O5)-R.

SO5T

abbreviation:  USNR officer designation. See SO5 and T. Formerly S(O5)-T.

SO5X

abbreviation:  USNR officer designation. See SO5 and X. Formerly S(O5)-X.

SO6

abbreviation:  USNR officer designation for Special Service, Special Ordnance Duties in Under Water Ordnance. Formerly S (O6).

SO6N

abbreviation:  USNR officer designation. See SO6 and N. Formerly S(O6)-N.

SO6R

abbreviation:  USNR officer designation. See SO6 and R. Formerly S(O6)-R.

SO6T

abbreviation:  USNR officer designation. See SO6 and T. Formerly S(O6)-T.

SO6X

abbreviation:  USNR officer designation. See SO6 and X. Formerly S(O6)-X.

SOA

abbreviation:  Speed of Approach

SOAG

abbreviation:  Senior Officer Assault Group (GB)

SOASC (I)

abbreviation:  Senior Officer Assault Ships and Craft (India) (GB)

SOC-#

abbreviation:  "Seagull"; single-engine Navy scout-observation (VSO) landplane or seaplane, biplane, manufactured by Curtiss

SoCalSec

abbreviation:  Southern California Sector, Western Sea Frontier

SoChinaFor

abbreviation:  South China Force

SOCMC

abbreviation:  Special Order of the Commandant of the Marine Corps (USMC)

SOD

abbreviation:  Small Object Detector

SOE

abbreviation:  Secret Operations Executive (British research unit corresponding to OSS)

SOE

abbreviation:  Special Operation Executive (GB)

SoEastPac

abbreviation:  Southeast Pacific Force (later, Command)

SOEF Kandy

abbreviation:  Senior Officer, Eastern Fleet, Kandy (GB)

Sofar

abbreviation:  Sound Fixing and Ranging

soft patch

nautical:  A temporary plate put on over a break or hole and secured with tap bolts. It is made watertight with a gasket such as canvas saturated in red lead.

SOG

abbreviation:  Special Operations Group

SOI

abbreviation:  Signal Operations Instructions (Army)

SOIC

abbreviation:  Supply Officer-in-Charge

SOINC

abbreviation:  Supply Officer-in-Charge

SOIS

abbreviation:  Senior Officer, Inshore Squadron (GB)

SoLant

abbreviation:  South Atlantic Force (later, Command)

SoLantFor

abbreviation:  South Atlantic Force

sole plate

nautical:  A plate fitted to the top of a foundation to which the base of a machine is bolted. Also a small plate fitted at the end of a stanchion.

SOLS

abbreviation:  Solomon Islands

Solution or Plot Ready

orders:  Plot has solved the problem and is ready to open fire.

SOM

abbreviation:  Sonarman; Soundman

SOMD

abbreviation:  Secretary’s Office, General Counsel

SOME

abbreviation:  Secretary’s Office, Management Engineer

SOMH

abbreviation:  Sonarman, Harbor Defense

SOMP

abbreviation:  Sydney Ocean Meeting Point

SON-#

abbreviation:  "Seagull"; single-engine Navy scout-observation (VSO) seaplane, biplane, manufactured by Naval Aircraft Factory

SON

abbreviation:  USNR officer designation. See SO and N. Formerly S(O)-N.

SONA

abbreviation:  School of Naval Administration, Leland Stanford University

Sonar

abbreviation:  Sound, Navigation and Ranging

SOND

abbreviation:  Secretary’s Office, Navy Department

SONOM

abbreviation:  Sonar countermeasures and deception

SONRD

abbreviation:  Secretary’s Office, Office of Research and Development

SOP(A)

abbreviation:  Senior Officer Present (Ashore)

SOP

abbreviation:  Senior Officer Present

SOP

abbreviation:  Standard Operating Procedure

SOPA

abbreviation:  Senior Officer Present Afloat

SoPac

abbreviation:  South Pacific Area and Force (later, South Pacific Command)

SoPacBaCom

abbreviation:  South Pacific Base Command

SoPacComs

abbreviation:  South Pacific Communications

SoPat

abbreviation:  South China Patrol

SOPUS

abbreviation:  Senior (US) Officer Present

SOR

abbreviation:  USNR officer designation. See SO and R. Formerly S(O)-R.

SORA

abbreviation:  Secretary’s Office, Records Administration

SORG

abbreviation:  Submarine Operations Research Group

SORNE (I)

abbreviation:  Senior Officer, Royal Naval Establishment (India) (GB)

SORR

abbreviation:  Submarine Operations Research Report (by SORG)

SOS

abbreviation:  Radio Distress Call

SOS

abbreviation:  Services of Supply (Army)

SOSED

abbreviation:  Secretary’s Office, Shore Establishments Division (incorporated into SECP, 1944)

SOSSPA

abbreviation:  Service of Supply, South Pacific Area

SOSU

abbreviation:  Scout Observation Service Unit

SOT

abbreviation:  USNR officer designation. See SO and T. Formerly S(O)-T.

SOTB

abbreviation:  Secretary’s Office, Transportation Branch

sounding pipe

nautical:  A vertical pipe in an oil or water tank, used to guide a sounding device when measuring the depth of liquid in the tank. Also called a Sounding Tube.

soundness of steel castings

nautical:  Absence in a casting of cavities or blow holes formed by air bubbles.

SoWesPac

abbreviation:  Southwest Pacific Command

SoWesSeaFron

abbreviation:  Southwest Sea Frontier

SOX

abbreviation:  USNR officer designation. See SO and X. Formerly S(O)-X.

SP(TR)

abbreviation:  Specialist, (Transportation) (USCG)

SP

abbreviation:  Qualified in Submarine Training

SP

abbreviation:  San Pedro, California

SP

abbreviation:  Section Patrol

SP

abbreviation:  Security Publication

SP

abbreviation:  Shore Patrol

SP

abbreviation:  Single Purpose Gun

SP

abbreviation:  Smokeless Powder

SP

abbreviation:  Specialist

SP

abbreviation:  Sub-Professional (Civil Service employees designation)

SP

abbreviation:  Summary Plotter (radar)

SPA

abbreviation:  South Pacific Area

SpA

abbreviation:  Specialist, Physical Training Instructor

SPAB

abbreviation:  Supply, Priorities and Allocations Board

span

nautical:  The distance between any two similar members, as the span of the frames. The length of a member between its supports, as the span of a girder. A rope whose ends are both made fast some distance apart, the bight having attached to it a topping lift, tackle, etc. A line connecting two davit heads so that when one davit is turned the other follows.

spanner

nautical:  A form of open-head wrench for use with special fittings whose character is such as to preclude the use of the ordinary type of wrench.

spar

nautical:  A term applied to a pole serving as a mast, boom, gaff, yard, bowsprit, etc. Spars are made of both steel and wood.

SPARS

abbreviation:  Women’s Reserve U.S. Coast Guard. The word SPAR was coined from the initials of the Coast Guard motto: "Semper Paratus" (Always Ready).

SpAst

abbreviation:  Special Assistant

SPATS

abbreviation:  South Pacific Air Transportation Service

SpC

abbreviation:  Specialist, Classification Interviewer

SPC

abbreviation:  Standard Products Committee

SpCW

abbreviation:  Specialist, Chemical Warfare

SPD

abbreviation:  Southern Procurement Division

SpD

abbreviation:  Specialist, Animal Handler

Spd

abbreviation:  Speed

SPDC

abbreviation:  Spare Parts Distributing Center

Spdltr

abbreviation:  Speed letter

Spec

abbreviation:  Special

Spec

abbreviation:  Specialist

Spec

abbreviation:  Specification

SPEC

abbreviation:  USNR officer designation for Special Service, Reserve Pay Clerk

specific gravity

nautical:  The ratio of the weight of a given volume of any substance to the weight of an equal volume of distilled water. Since the distilled water weighs approximately 62.4 pounds per cubic foot, any substance, a cubic foot of which weighs less that this, has a specific gravity of less than one, and will float on water. Any substance of greater weight per cubic foot has a specific gravity of more than one and will sink. Specific gravity of gases is based in a like manner on the weight of air.

spectacle frame

nautical:  A single casting containing the bearings for and furnishing support for the ends of the propeller shafts in a twin screw vessel. The shell plating is worked outboard so as to enclose the shafts and is attached at the after end to the spectacle frame. Used in place of shaft struts.

SpeNavO

abbreviation:  Special Naval Observer

SpEPS

abbreviation:  Specialist, Motion Picture Server-Booker

SpERW

abbreviation:  Specialist, Recreation and Welfare Assistant

SpF

abbreviation:  Specialist, Firefighter

SpG

abbreviation:  Specialist, Gunnery

SpGM

abbreviation:  Specialist, Gunnery, Aviation Free Gunnery Instructor

SpGN

abbreviation:  Specialist, Gunnery, Anti-Aircraft Gunnery Instructor

SpI

abbreviation:  Specialist, Punched Card Accounting Machine Operator

spike

nautical:  A stout metal pin headed on one end and pointed at the other, made of either square or round bar, and used for securing heavy planks and timbers together.

spiling

nautical:  The curve of a plate or strake as it narrows to a point.

Spl

abbreviation:  Special; Specialist

splice

nautical:  A method of uniting the ends of two ropes by first unlayering the strands, then interweaving them so as to form a continuous rope.

Split salvo

orders:  When less than the full number of guns in a multiple gun mount, or mounts, is ordered to fire on one salvo signal, the salvo is a split salvo. Split salvos may be used to reduce dispersion, conserve ammunition, or reduce salvo interval.

SpLT

abbreviation:  Specialist, Link Trainer Instructor

SplW

abbreviation:  Special Warrant

SpM

abbreviation:  Mail Clerk

SPM

abbreviation:  Self-propelled mount

SPO

abbreviation:  Shore Patrol Officer

SpO

abbreviation:  Specialist, Inspector of Naval Material

SpOAV

abbreviation:  Specialist, Inspector of Aviation Material

SpOEN

abbreviation:  Specialist, Engineering Inspector

SpOOR

abbreviation:  Specialist, Ordnance Inspector

SpOPE

abbreviation:  Specialist, Petroleum Technician

SPORT

abbreviation:  Support

SportFor

abbreviation:  Support Force

spot face

nautical:  To finish off the surface around a bolt hole in a plane normal to the axis of the hole to provide a neat seat for the nut of washer.

SPOT

abbreviation:  Spotter

SpP

abbreviation:  Specialist, Photographic Specialist

SpPLB

abbreviation:  Specialist, Photographer, Laboratory

SpPMP

abbreviation:  Specialist, Motion Picture Production

SpPPG

abbreviation:  Specialist, Photogrammetry

SpPR

abbreviation:  Specialist, Public Relations (USCG)

SPPS

abbreviation:  Specialist, Port Security (USCG)

SpPVM

abbreviation:  Specialist, V-Mail

SpQ

abbreviation:  Specialist, Communications Specialist

SpQCR

abbreviation:  Specialist, Specialist, Communications Specialist, Cryptographer

SpQIN

abbreviation:  Specialist, Communications Specialist, Radio Intelligence

SpQRP

abbreviation:  Specialist, Communications Specialist, Registered Publication Clerk

SpQTE

abbreviation:  Specialist, Communications Specialist, Technician

SpR

abbreviation:  Specialist, Recruiter

Sprawl — See Drop Down

orders:  All hands on deck drop down on their faces to avoid bomb fragments. The command ordinarily will only be given after aircraft have been observed to reach a bombing position, to have released their bombs, and just before the bombs reach the contact point.

Spread awnings

orders:  Stretch awnings in place.

spring

nautical:  The deviation from a straight line or the amount of curvature of a sheer line, deck line, beam camber, etc., an elastic body or device which recovers its original shape when released after being distorted.

sprocket, sprocket wheel

nautical:  A wheel on whose periphery are teeth or cogs designed to engage with the links of a pitch or sprocket chain through which motion is transmitted to a second sprocket.

SpS

abbreviation:  Specialist, Personnel Supervisor (Women’s Reserve)

SpS

abbreviation:  Specialist, Shore Patrol and Security

SPSA

abbreviation:  Special Projects School for Air

SpSPS

abbreviation:  Specialist, Personnel Supervisor, V-10

SpT

abbreviation:  Specialist, Teacher

SpTLT

abbreviation:  Specialist, Link Trainer Instructor

SPU

abbreviation:  Special Projects Unit

SpU

abbreviation:  Specialist, Utility (Women’s Reserve)

SpV

abbreviation:  Specialist, Transport Airman

SpW

abbreviation:  Specialist, Chaplain’s Assistant

SpX

abbreviation:  Specialist, not elsewhere classified

SpXAC

abbreviation:  Specialist, Archivist

SpXAR

abbreviation:  Specialist, Artist

SpXBL

abbreviation:  Specialist, Ballistics

SpXCC

abbreviation:  Specialist, Cable Censor

SpXCG

abbreviation:  Specialist, Crystal Grinder

SpXCT

abbreviation:  Specialist, Cartographer

SpXDI

abbreviation:  Specialist, Discharge Interviewer

SpXED

abbreviation:  Specialist, Engineering Draftsman

SpXFP

abbreviation:  Specialist, Fingerprint Expert

SpXGU

abbreviation:  Specialist, Gage Specialist

SpXID

abbreviation:  Specialist, Intelligence Duties

SpXIR

abbreviation:  Specialist, Interpreter

SpXJO

abbreviation:  Specialist, Journalist

SpXKP

abbreviation:  Specialist, Key Punch Operator and Supervisor

SpXNC

abbreviation:  Specialist, Naval Correspondent

SpXOP

abbreviation:  Specialist, Special Project

SpXPC

abbreviation:  Specialist, Position Classifier

SpXPI

abbreviation:  Specialist, Pigeon Trainer

SpXPL

abbreviation:  Specialist, Plastic Expert

SpXPR

abbreviation:  Specialist, Public Information

SpXQM

abbreviation:  Specialist, Operations — Plotting and Chart Work

SpXRL

abbreviation:  Specialist, Research Laboratory

SpXRS

abbreviation:  Specialist, Armed Forces Radio Service and Special Naval Radio Units

SpXRT

abbreviation:  Specialist, Passenger Transportation

SpXSB

abbreviation:  Specialist, Telephone Switchboard Operator and Supervisor

SpXST

abbreviation:  Specialist, Strategic Services

SpXTD

abbreviation:  Specialist, Topographic Draftsman

SpXTS

abbreviation:  Specialist, Air Stations Operations Desk — Time Shack

SpXVA

abbreviation:  Specialist, Visual Training Aids

SpY

abbreviation:  Specialist, Control Tower Operator

Sq.

blueprints:  Square.

Sq

abbreviation:  Squadron

Sqdn

abbreviation:  Squadron

Sqn

abbreviation:  Squadron

squatting

nautical:  The increase in trim by the stern assumed by a vessel when running at high speed over that existing when she is at rest.

SR

abbreviation:  Air Search Radar Receiver (shipborne)

SR

abbreviation:  Seaplane Reconnaissance Aircraft

SR

abbreviation:  Ship Repair Ratings

SR

abbreviation:  Shipment Request

SR

abbreviation:  Sound Rating (Army)

SR

abbreviation:  USNR officer designation. See S and R. Formerly (S)-R.

SRB

abbreviation:  Seaplane Repair Base

SRB

abbreviation:  Service Record Book (USMC)

SRF

abbreviation:  Submarine Repair Facility

SRL

abbreviation:  Serial

SrMbr

abbreviation:  Senior Member

SRNC

abbreviation:  Severn River Naval Command

SRTU

abbreviation:  Ship Repair Training Unit

SRU

abbreviation:  Seaplane Reconnaissance Unit

SRU

abbreviation:  Ship Repair Unit

SRU

abbreviation:  Submarine Repair Unit

SS&CS

abbreviation:  Ship’s Stores and Commissary Stores

SS

abbreviation:  High frequency radar, directional

SS

abbreviation:  Selectee (USMC)

SS

abbreviation:  Selective Service

SS

abbreviation:  Sharpshooter (USMC)

SS

abbreviation:  Single-seated

SS

abbreviation:  Steamship

SS

abbreviation:  Submarine Qualification

SS

abbreviation:  Submarine Studies (by SORG)

SS

abbreviation:  Submarine

SS

abbreviation:  Sworn Statement

SSA

abbreviation:  Ship’s Stores Ashore

SSA

abbreviation:  Signal Security Agency

SSC

abbreviation:  Submarine Supply Center

SSD

abbreviation:  Scrap Salvage Division (BuS&A)

SSD

abbreviation:  Stabilized Ship Detector

SSDB

abbreviation:  Shore Station Development Board

SSF

abbreviation:  Ship’s Service Force

SSF

abbreviation:  Single-seated fighter

SSF

abbreviation:  Special Service Force

SSM

abbreviation:  Silver Star Medal

SSMB

abbreviation:  Ships’ Service Man, Barber

SSMC

abbreviation:  Ship’s Service Man, Cobbler

SSML

abbreviation:  Ship’s Service Man, Laundryman

SSMT

abbreviation:  Ship’s Service Man, Tailor

SSP

abbreviation:  Scouting seaplane

SSP

abbreviation:  Ship’s Stores Profit

SSPN

abbreviation:  Ship’s Stores and Profit, Navy

SSR

abbreviation:  Spin Stabilized Rockets

SSU

abbreviation:  Special Service Unit

SSU

abbreviation:  Squadron Service Unit (Aircraft)

SSU

abbreviation:  Strategic Services Unit; formerly, Office of Strategic Service (OSS)

St. M.

blueprints:  Set Mark.

ST

abbreviation:  Steward

ST

abbreviation:  Stockton

ST

abbreviation:  Stratus

ST

abbreviation:  Type of submarine radar used for surface search and ranging while submerged

ST

abbreviation:  USNR officer designation. See S and T. Formerly (S)-T.

STA

abbreviation:  Station

Sta

abbreviation:  Stationary

stability, range of

nautical:  The number of degrees through which a vessel rolls or lists before losing stability.

stability

nautical:  The tendency which a vessel has to return to the upright position after the removal of an external force which inclined her away from that position. To have stability, a vessel must be in a state of stable equilibrium.

STAD

abbreviation:  Special Temporary Aviation Duty (USMC)

STAG

abbreviation:  Special Task Air Group

stage

nautical:  A floor or platform of planks supporting workmen during the construction or the cleaning and painting of a vessel, located either inside or outside the vessel.

stagger

nautical:  To zigzag rivet holes in adjacent rows.

staging

nautical:  Upright supports, fastened together with horizontal and diagonal braces forming supports for planks which form a working platform or stage.

STAN

abbreviation:  Standard

stanchions

nautical:  Short columns or supports for decks, hand rails, etc. Stanchions are made of pipe, steel shapes, or rods, according to the location and purpose they serve.

Stand by for a mark on gyro repeaters

orders:  Compare compass repeaters with the standard compass.

Stand by the oars

orders:  An order given to prepare to get the oars up or out.

Stand by to test out the main engine

orders:  Order given by the chief engineer to the fireroom that steam will be needed.

Stand by your hammocks

orders:  Go to hammock nettings or bunks and face aft.

Stand by your lines

orders:  Man the lines, ready to cast off.

Stand by

orders:  To be ready to act in relation to any operation. For example, in gunnery, a warning that "Commence Firing" may follow in a few seconds.

Stand easy

orders:  Allows the men at station to relax at their stations.

Stand easy

orders:  Allows the men to relax at their stations.

Standard speed

orders:  A formation speed in knots through the water set by the officer in tactical command of the unit.

standing rigging

nautical:  Rigging that is permanently secured and that is not hauled upon, as shrouds, stays, etc.

STANLANCRU

Bureau of Personnel Condensation Code:  Standard Landing Craft Unit

stapling

nautical:  Plates or angles fitted closely around or against continuous members passing through a watertight or oiltight member and caulked or welded to maintain the water or oil tightness of the structure.

STAR

abbreviation:  Specialized Training and Reassignment (Army)

starboard

nautical:  The right-hand side of the ship when looking from aft forward. Opposite to port.

Start tracking or track

orders:  The control party starts tracking (following) the target. After this command the entire battery is in condition to open fire at a moment’s notice using primary methods of control.

Start warming up number (three and four) generators

orders:  An order to cut in the steam to the turbines of these generators slowly so that they may be warmed up and made ready for use.

Stat

abbreviation:  Statues-at-Large of the United States

stateroom

nautical:  A private room or cabin for the accommodation of passengers or officers.

Stations

orders:  At this command:

1. Ammunition parties prepare to send up or break out ammunition.
2. Gun crews take their assigned stations, and prepare to service the battery.
3. Hydraulic motors are started.
4. All control and director parties assume positions to open fire.

stays

nautical:  The ropes, whether hemp or wire, that support the lower masts, topmasts, top-gallant masts, etc. in a fore and aft direction.

Stbd

abbreviation:  Starboard

STD

abbreviation:  Physically on board under instruction; not ship’s company

Std

abbreviation:  Steward

StdA

abbreviation:  Steward’s Assistant

StdB

abbreviation:  Steward’s Branch (USMC)

Ste

abbreviation:  Steward (Officer’s) (USMC)

Steady; Steady as you go; Keep her so

orders:  Maintain the course the vessel is on at the instant of command.

stealer

nautical:  A strake of shell plating that does not extend completely to the bow or stern.

Steam is on the anchor engine

orders:  The anchor engine is ready for use; applies to steam anchor engines only.

Steer astern of ship ahead

orders:  Follow in wake of ship ahead.

Steer course zero, four, zero

orders:  A command directing the helmsman to steer the course given.

Steerageway

orders:  The slowest speed at which the ship will steer.

steering gear

nautical:  A term applied to the steering wheels, leads, steering engine, and fittings by which the rudder is turned.

stem

nautical:  The bow frame forming the apex of the intersection of the forward sides of a ship. It is rigidly connected at lower end to the keel.

Steno

abbreviation:  Stenographer

Stereo

abbreviation:  Stereoscopic

Stern all

orders:  An order give to propel a pulling boat astern by the use of the oars.

stern frame

nautical:  A large casting or forging attached to the after end of the keel to form the ship’s stern. Includes rudder post, propeller post, and aperture for the propeller in single-screw vessels.

stern pipes

nautical:  A round or oval casting, or frame, inserted in the bulwark plating at the stern of the vessel through which the mooring hawser or warping lines are passed. Also called Stern Chock.

stern post

nautical:  The main vertical post in the stern frame upon which the rudder is hung. Also called the Rudder Post.

stern tube

nautical:  The bearing supporting the propeller shaft where it emerges from the ship. It consists of a hollow cast-iron or steel cylinder fitted with brass bushings, which in turn are lined with lignum vitae, white metal, etc., bearing surfaces upon which the propeller shaft, enclosed in a sleeve, rotates.

stern

nautical:  The after end of a vessel; the farthest distant part from the bow.

SteT

abbreviation:  Steward, technical (USMC)

StfSgt

abbreviation:  Staff Sergeant (USMC)

STG

abbreviation:  Absent in straggler status

Stgr.

blueprints:  Stringer.

stiff, stiffness

nautical:  The tendency of a vessel to remain in the upright position, or a measure of the rapidity with which she returns to that position after having been inclined from it by an external force.

stiffener

nautical:  An angle bar, T-bar, channel, etc., used to stiffen plating of a bulkhead, etc.

Stiffr.

blueprints:  Stiffener.

STIK

abbreviation:  Striking

Stinger Dog Project

abbreviation:  A drone boat project

StM

abbreviation:  Steward’s Mate

STO

abbreviation:  Storekeeper (USCG)

STOCK

abbreviation:  Stockton, California

stocks

nautical:  A general term applied to the keel blocks, bilge blocks, and timbers upon which a vessel is constructed.

stop water

nautical:  A term applied to canvas and red lead, or other suitable material, placed between the facing surfaces of plates and shapes to stop the passage of oil or water. Also applied to a wooden plug driven through a scarph joint between timbers to insure water tightness.

STP

abbreviation:  Stop

StrAFPOA

abbreviation:  Strategic Air Force, Pacific Ocean Area

Strag

abbreviation:  Straggler

strain

nautical:  The measure of the alteration of form which a solid body undergoes when under the influence of a given stress.

StrAirPoa

abbreviation:  Strategic Air Force, Pacific Ocean Areas

strake, bilge

nautical:  A term applied to a strake of outside plating running in the way of the bilge.

strake, bottom

nautical:  Any strake of plating on the bottom of a ship that lies between the keel and the bilge strakes.

strake

nautical:  A term applied to a continuous row or range of plates. The strakes of shell plating are usually lettered, starting with A at the bottom row or garboard strake.

strand

nautical:  An element of a rope, consisting, in a fiber rope, of a number of rope yarns twisted together and, in a wire rope, of a primary assemblage of wires.

strength member

nautical:  Any plate or shape which contributes to the strength of the vessel. Some members may be strength members when considering longitudinal strength but not when considering transverse strength, and vice versa.

stress

nautical:  The intensity of the force which tends to alter the form of a solid body; also the equal and opposite resistance offered by the body to a change of form.

stretchers

nautical:  Athwartship, movable pieces against which the oarsmen brace their feet in pulling a small boat.

STRG

abbreviation:  Straggler

Strike arcs

orders:  Searchlights establish the arc with shutters closed for the purpose of quick illumination or for warming up or testing.

Strike the ship’s bell

orders:  Ring it.

stringer plates

nautical:  A term applied to the outboard plates on any deck, or to the plates attached to the top flanges of a tier of beams at the side of a vessel.

stringer

nautical:  A term applied to a fore-and-aft girder running along the side of a ship and also to the outboard strake of plating on any deck. The side pieces of a ladder or staircase into which the treads and risers are fastened.

strum box

nautical:  The enlarged terminal on the suction end of a pipe which forms a strainer to prevent the entrance of material liable to choke the pipe. Also called Rose Box.

strut

nautical:  A heavy arm or brace.

STT

abbreviation:  Stenographer, Medical

STU

abbreviation:  Service Trials Unit

Stud

abbreviation:  Student

stud

nautical:  A bolt threaded on both ends, one end of which is screwed into a hole drilled and tapped in the work, and is used where a through bolt cannot be fitted.

studding

nautical:  The vertical timbers or framing of a wooden deck house, fitted between the sill and the plate.

stuffing box

nautical:  A fitting designed to permit the free passage or revolution of a rod or a pipe while controlling or preventing the passage by it of water, steam, etc.

STV

abbreviation:  Steam Tank Vessel

Su or Du

abbreviation:  Single or double uptake (boilers)

SU

abbreviation:  Service Unit (Army)

SUB

abbreviation:  Submarine Service

SubAd

abbreviation:  Submarine Force, Pacific Fleet Administration

SubAdMI

abbreviation:  Submarine Force, Pacific Fleet Administration, Mare Island

SuBase

abbreviation:  Submarine Base

SubBase

abbreviation:  Submarine Base

SubCom

abbreviation:  Subordinate Command, Service Force, Pacific Fleet

SubDiv

abbreviation:  Submarine Division

SubLant

abbreviation:  Submarine Force, Atlantic Fleet

Subm

abbreviation:  Submerged

Submarine alert

orders:  Be on the watch for torpedo attack; assume standby positions.

submarine

nautical:  Beneath the surface of the sea. A vessel which is capable of service both below and on the surface of the water.

SUBOR

abbreviation:  Subordinate

SuborCom

abbreviation:  Subordinate Command

SuborComd

abbreviation:  Subordinate Command

SuborComdServLant

abbreviation:  Subordinate Command, Service Force, Atlantic Fleet

SuborComdServPac

abbreviation:  Subordinate Command, Service Force, Pacific Fleet

SubPac

abbreviation:  Submarine Force, Pacific Fleet

SubPacAd

abbreviation:  Submarine Force, Pacific Fleet, Administrative Command

SubPacSubordCom

abbreviation:  Submarine Force, Pacific Fleet, Subordinate Command

SubRon

abbreviation:  Submarine Squadron

SUBRU

abbreviation:  Submarine Repair Unit

SUBS

abbreviation:  Subsistence Allowances

SubScoFor

abbreviation:  Submarine Scouting Force (Pacific Fleet)

SubsLant

abbreviation:  Submarines, Atlantic Fleet

SubsPac

abbreviation:  Submarines, Pacific Fleet

SubsSoWesPac

abbreviation:  Submarines, Southwest Pacific Force

SUCHTRANS

Bureau of Personnel Condensation Code:  For such transportation as he may designate

SUCHTRANSVAIL

Bureau of Personnel Condensation Code:  (via) Such transportation as may be available

SUDAM

abbreviation:  Sunk or Damaged

Sugar Charlie

glossary:  Sub Chaser.

Sugar Fox

glossary:  Fast patrol boat.

Sugar

abbreviation:  "S" in the phonetic alphabet, replacing the obsolete "Sail"

SumCM

abbreviation:  Summary Court Martial (Army)

sunk forecastle, sunk poop

nautical:  A forecastle or poop deck which is raised only a partial deck height above the level of the upper or weather deck.

SUP

abbreviation:  Supply

SupCom

abbreviation:  Supreme Command

SupCon

abbreviation:  Superintending Constructor

Super Scarab

abbreviation:  naval aircraft engine, 7 cylinders, manufactured by Warner

Super Sniffer

abbreviation:  A racon

superstructure

nautical:  A structure built above the uppermost complete deck; a pilot house, bridge, galley house, etc.

SuPier

abbreviation:  Naval Supply Pier

SupInsMat

abbreviation:  Supervising Inspector of Naval Material

SupSgt

abbreviation:  Supply Sergeant (USMC)

SupShip

abbreviation:  Supervisor of Shipbuilding

SUPT

abbreviation:  Superintendent (ing)

SuptNavObsy

abbreviation:  Superintendent, Naval Observatory

Supv

abbreviation:  Supervisor

SUR

abbreviation:  Physically on board as a "Survivor"

Sur

abbreviation:  Surrender(ed)

SurGen

abbreviation:  Surgeon General

SURV

abbreviation:  Survey

SUS

abbreviation:  Suspended (aviation)

SUSNO

abbreviation:  Senior U.S. Naval Officer

SUSP

abbreviation:  Vessels which will have construction terminated upon the completion of specified items

SUUPOFCOMD

Bureau of Personnel Condensation Code:  Supply Officer-in-Command

SV

abbreviation:  Selective Volunteer (U.S. Navy)

SV

abbreviation:  Type of submarine radar for aircraft warning

SvC

abbreviation:  Service Command (Army)

SVC

abbreviation:  Service

Sw. Pl.

blueprints:  Swash Plates.

SW

abbreviation:  Secretary of War

SW

abbreviation:  Security Watch

SW

abbreviation:  Ship’s Warrant (USMC)

SW

abbreviation:  Southwest

SWA

abbreviation:  Southwest Approaches (to GB)

Swab down (deck)

orders:  Wash down deck.

swage

nautical:  To bear or force down. An instrument having a groove on its under side for the purpose of giving shape to any piece subjected to it when the swage is struck by a hammer.

swallow

nautical:  A term applied to the oval or round opening in a chock or mooring ring. See Block.

swash bulkheads

nautical:  Longitudinal or transverse nontight bulkheads fitted in a tank to decrease the swashing action of the liquid contents. Their function is greatest when the tanks are partially filled. Without them the unrestricted action of the liquid against the sides of the tank would be severe. A plate serving this purpose is called a swash plate.

Sweepers man your brooms. (clean sweep down fore and aft)

orders:  Assigned sweepers sweep as directed.

SWETTU

abbreviation:  Special Weapons Experimental Tactical Test Unit

swivel

nautical:  A special link constructed in two parts which revolve on each other, used to prevent fouling due to turns or twists in chain, etc.

SWNCC

abbreviation:  State, War, Navy Coordinating Committee

SWOD

abbreviation:  Special Weapons Ordnance Devices

SWPA

abbreviation:  Southwest Pacific Area

SWPA

abbreviation:  Surplus War Property Administration

SWPC

abbreviation:  Smaller War Plants Corporation

SWPF

abbreviation:  Southwest Pacific Force

SWTTEU

abbreviation:  Special Weapons Test and Tactical Evaluation Unit

SX

abbreviation:  Search and altitude determining radar with constant sweep

SX

abbreviation:  Sectional Express (boiler)

SX

abbreviation:  USNR officer designation. See S and X. Formerly (S)-X.

T or (T)

glossary:  True. Used when noting direction ("bearing") of an object such as the ship’s course, another ship, or enemy plane; expressed in degrees.

T Co

abbreviation:  Transportation Company (Army)

T mort

abbreviation:  Trench mortar (Army)

T of Opns

abbreviation:  Theater of Operations

T. S.

blueprints:  Top Side.

T. T.

blueprints:  Tank Top.

T.

blueprints:  Top.

T/A

abbreviation:  Table of Allowances (Army)

T/E

abbreviation:  Tables of Equipment (Army)

T/L

abbreviation:  Training Literature

T/O&E

abbreviation:  Tables of Organization and Equipment

T/O

abbreviation:  Tables of Organization (Army)

T/R

abbreviation:  Transportation Request

T&DC

abbreviation:  Training and Distribution Center

T&DCen

abbreviation:  Training and Distribution Center

T&RNP

abbreviation:  Transportation of Recruiting Naval Personnel (appropriation title)

T

abbreviation:  A suffix which, when appended to a basic USNR line officer classification, indicates special qualifications in electronics: officers who are trained in the technical and material details of radio, radar, and underwater sound.

T

abbreviation:  First letter in the Navy aircraft designation, indicating a torpedo plane

T

abbreviation:  Northrop Aircraft, Inc. (El Segundo Division, Douglas Aircraft, Inc.) (manufacturer’s symbol)

T

abbreviation:  Taylorcraft Aviation Corporation (manufacturer’s symbol)

T

abbreviation:  Telegrapher

T

abbreviation:  Temporary (personnel status)

T

abbreviation:  Timm Aircraft Corporation (manufacturer’s symbol)

T

abbreviation:  Tons

T

abbreviation:  Trainer Aircraft

T

abbreviation:  Transferred

T

abbreviation:  Tug

TA

abbreviation:  Tacoma

TA

abbreviation:  Tax Amortization (Plan)

TA

abbreviation:  Travel Allowance

TA

abbreviation:  United Kingdom to United States (military) (routing designation)

Tac/R

abbreviation:  Tactical Reconnaissance

TAC

abbreviation:  Tactical Air Force

tackle

nautical:  Any combination of ropes and blocks that multiplies power. Also applied to a single whip which does not multiply power but simply changes direction.

TAD

abbreviation:  Physically on board for temporary additional duty from another ship or activity

TAD

abbreviation:  Temporary Additional Duty

TAD

abbreviation:  Training Aids Division

TADC

abbreviation:  Training and Distribution Center

taff rail

nautical:  The rail around the top of the bulwark or rail stanchions of the after end of the weather deck, be it upper, main, raised, quarter, or poop.

TAG

abbreviation:  The Adjutant General (Army)

TAG

abbreviation:  Training Aids Guide

TAG

abbreviation:  Transport Air Group (Joint Army, Navy and Marine Corps)

TAG

abbreviation:  Trinidad to Aruba to Guantanamo (routing designation)

Tail on

orders:  An order to lay hold of a rope and pull away.

tail shaft

nautical:  The aft section of the shaft which receives the propeller.

TAIU

abbreviation:  Technical Aircraft Instrument Unit

TAJ

abbreviation:  Radio transmitter

Take a heavy strain

orders:  Pull in on the line to as much tension as you think it will stand. If winch is available, use it.

Take a strain

orders:  Put the line under tension.

Take clothes and wash (forward) and stop them on the line

orders:  Tie the clothes on the line on the stated part of the ship.

Take cover

orders:  Gun crews and others proceed to gun crew shelter on the double. Given when angle of elevation is such as to permit shell fragments falling on the deck, or to avoid a spray gas attack.

Take dive attack sectors

orders:  Place battery in fully ready condition to repel a surprise glide, dive or strafing attack. Guns elevate 60° and trained in center of own sector.

Take in the slack

orders:  Heave in on the line, but do not take a strain.

TAL

abbreviation:  Training Aids Library

tank top

nautical:  The plating laid on the bottom floors of a ship, which forms the top side of the tank sections or double bottom.

tanks

nautical:  Compartments for liquids or gases. They may be formed by the ship’s structure as double bottom tanks, peak tanks, deep tanks, etc., or may be independent of the ship’s structure and installed on special supports.

TANKSEC

abbreviation:  Petroleum and Tanker Division, Assistant CNO

TansPhibPac

abbreviation:  Transports, Amphibious Force, Pacific Fleet

TAR

abbreviation:  Target

Tare Run

glossary:  Anti-aircraft practice in which a plane tows a target sleeve toward the firing ship from directly abeam, simulating a torpedo attack. Because these were simulated torpedo attacks, and the term "torpedo" starts with the letter "T", the old US Navy phonetic alphabet terms resulted in these simulated attacks being referred to as "Tare" runs.

Tare

abbreviation:  "T" in the phonetic alphabet

TARFU

abbreviation:  "Things are really fouled up"

Target aircraft sighted bearing one eight zero position angle two five

orders:  Contact report sent to Air Defense, and in case of local control to the guns as well.

Target, destroyer of the [ ] class sighted bearing zero four five

orders:  Contact report sent to Control and Plot by the spotter. Conn states exactly by type and bearing the target to be taken under fire. Control gives this same information to the guns so that if they must go to local control they may do so intelligently. Director trainer and pointer report to Control when on target, using the expression "On Target".

tarpaulin

nautical:  A term formerly applied to a paulin which was usually tarred.

TAS

abbreviation:  Training Aids Section

TAS

abbreviation:  True Air Speed

TaskFlot

abbreviation:  Task Flotilla

TASSO

abbreviation:  Transatlantic Air Safety Service Organization

TAT

abbreviation:  Torpedo Attack Teacher

taut

nautical:  The condition of a rope, wire, or chain when under sufficient tension to cause it to assume a straight line, or to prevent sagging to any appreciable amount.

TAW

abbreviation:  Trinidad to Aruba to Key West (routing designation)

TB

abbreviation:  First two letters in the Navy aircraft designation, indicating a torpedo-bombing plane

TB

abbreviation:  Torpedo Boat (German); corresponds to US DE

TB

abbreviation:  Tractor Biplane

TB

abbreviation:  Trinidad to Bahia (routing designation)

TBA

abbreviation:  Tables of Basic Allowances; previously, Basic Tables of Commissioning Allowances (BTCA)

TBD-#

abbreviation:  "Devastator"; single-engine Navy torpedo-bomber (VTB), manufactured by Douglas

TBD

abbreviation:  Target Bearing Designator

TBF-#

abbreviation:  "Avenger"; single-engine Navy torpedo-bomber (VTB), manufactured by Grumman

TBI

abbreviation:  Target Bearing Indicator

TBK

abbreviation:  Radio Transmitter (HF)

TBL

abbreviation:  Radio Transmitter (HF)

TBM-#

abbreviation:  "Avenger"; single-engine Navy torpedo-bomber (VTB), manufactured by General Motors

TBM

abbreviation:  Radio Transmitter (HF)

TBR

abbreviation:  Torpedo Bomber Reconnaissance Aircraft

TBS

abbreviation:  "Talk-Between-Ships"; very high frequency shipborne radio equipment of medium power, used for ships tactically maneuvering

TBX

abbreviation:  Semi-portable radio equipment of low power

TBY-#

abbreviation:  “Sea Wolf”; Navy torpedo plane (VTB), manufactured by Consolidated-Vultee

TBY

abbreviation:  Portable radio equipment of low power used as emergency for TBS

TC

abbreviation:  Training Center

TC

abbreviation:  Training Circular (Army)

TC

abbreviation:  Transportation Corps (Army)

TC

abbreviation:  Turret Captain

TCA

abbreviation:  Theatre Commander’s Approval

TCC

abbreviation:  Transportation Control Committee

TCg

abbreviation:  Contract for USCG

TCS

abbreviation:  Radio Transceiver (HF); used extensively in all amphibious craft

TCS

abbreviation:  Traffic Control Station (Army)

TCU

abbreviation:  New York to United Kingdom (Troop) (routing designation)

TCZ

abbreviation:  Permanent shipborne radio installation of medium power

TD

abbreviation:  First two letters in the Navy aircraft designation, signifying Drone

TD

abbreviation:  Physically on board for temporary duty (officers only)

TD

abbreviation:  Tank Destroyer (Army)

TD

abbreviation:  Topographic Draftsman

TD

abbreviation:  Torpedo Dive Bomber Aircraft

TDC

abbreviation:  Navy target (training) drone, manufactured by Culver Air

TDC

abbreviation:  Tank Destroyer Center (Army)

TDCO

abbreviation:  Torpedo Data Computer Operator

TDD-#

abbreviation:  Navy pilotless aircraft for target training, manufactured by Radioplane

TDM

abbreviation:  Torpedo Detection Modification (sonar)

TDN

abbreviation:  Travel directed is necessary in the military service (Army)

TDN

abbreviation:  Twin-engine Navy drone manufactured by Brunswick-Balke

TDQ-RCK

abbreviation:  Shipborne radio transmitter and receiver of medium power for very high frequency; used in ship-to- plane communications

TDQ

abbreviation:  Radio Transmitter (VHF)

TDR

abbreviation:  Twin-engine Navy assault drone, (VTD) manufactured by Interstate

TDS

abbreviation:  Reservists in annual training duty status

TDS

abbreviation:  Target Designation System

TDT

abbreviation:  Radio Transmitter (VHF)

TDT

abbreviation:  Target Designation Transmitter

TE

abbreviation:  Technician Communications

TE

abbreviation:  Turbo Electric Drive

TE

abbreviation:  Twin Engine

TECH

abbreviation:  Technical

Tech

abbreviation:  Technician

TechTra

abbreviation:  Air Technical Training

tee bar

nautical:  A rolled or extruded structural shape having a cross section shaped like the letter T.

TEG

abbreviation:  Purchases by Coast Guard (BuS&A symbol)

TEL

abbreviation:  Telegram

TEL

abbreviation:  Tetraethyl Lead

TELCON

abbreviation:  Telephone conversation

telegraph

nautical:  An apparatus, either electrical or mechanical, for transmitting orders, as from a ship’s bridge to the engine room, steering gear room, or elsewhere about the ship.

telemotor

nautical:  A device for operating the valves of the steering engine from the pilot house by means of either fluid pressure or electricity.

Telescope control

orders:  Telescope control is that method of control in which the guns are pointed and/or trained locally by telescope, but the values of range deflection and fuze settings are transmitted from a control station. It does not necessarily mean that the guns are fired locally.

Teletype

abbreviation:  Teletypewriter

TEM

Bureau of Personnel Condensation Code:  Temporary duty

TEMAC

Bureau of Personnel Condensation Code:  Temporary active duty

TEMACINS

Bureau of Personnel Condensation Code:  Temporary active duty under instruction

TEMADD

Bureau of Personnel Condensation Code:  Temporary additional duty

TEMADDCON

Bureau of Personnel Condensation Code:  Temporary additional duty in connection with

TEMADDINS

Bureau of Personnel Condensation Code:  Temporary additional duty under instruction

TEMCON

Bureau of Personnel Condensation Code:  Temporary duty connection

TEMFLYINS

Bureau of Personnel Condensation Code:  Temporary duty involving flying under instruction

TEMINS

Bureau of Personnel Condensation Code:  Temporary duty under instruction

Temp att

abbreviation:  Temporarily attached

Temp d

abbreviation:  Temporary duty

Temp det d

abbreviation:  Temporary detached duty

Temp.

blueprints:  Template.

Temp

abbreviation:  Temporary

TEMPFLY

Bureau of Personnel Condensation Code:  Temporary duty involving flying

template

nautical:  A mold or pattern made to the exact size of a piece of work that is to be laid out or formed, and on which such information as the position of rivet holes, size of laps, etc., is indicated.

TEMPLINACT

Bureau of Personnel Condensation Code:  Temporary duty pending disciplinary action

TEMPLINEAR

Bureau of Personnel Condensation Code:  Temporary duty (disciplinary hearing)

TEMWAIT

Bureau of Personnel Condensation Code:  Temporary duty awaiting

TENN

abbreviation:  Tennessee

tenon

nautical:  The end of a piece of wood cut into the form of a rectangular prism, designed to be set into a cavity or mortise of a like form in another piece.

tensile strength

nautical:  The measure of a material’s ability to withstand a tensile, or pulling stress without rupture, usually measured in pounds or tons per square inch of cross section.

TERM

abbreviation:  Terminal Island

Test circuits

orders:  Test telephones, voice tubes, salvo signals, cease firing, and all firing circuits. Guns report on condition of all items orally or by blinking ready light if all circuits test properly.

test head

nautical:  The head or height of a column of water which will give a prescribed pressure on the vertical or horizontal sides of a compartment or tank in order to test its tightness or strength or both,

Test transmission

orders:  Directs the members of the control party responsible for signals transmitted from the director to the battery to test the accuracy of transmission thereof, including: elevation (auto and indicating), train (auto and indicating), sight setting, fuze setting, battle order, shell order, shutter order.

TEV

abbreviation:  Turbo-Electric Drive (5-inch guns)

TEX

abbreviation:  Texas

Texan

abbreviation:  See SNJ-#

TexGrp

abbreviation:  Texas Group

TF

abbreviation:  Task Force

TF

abbreviation:  Torpedo Fighter Aircraft

TFC

abbreviation:  Time of First Call

TG

abbreviation:  Task Group

Tg

abbreviation:  Telegraph

TGT

abbreviation:  Target

TH

abbreviation:  Territory of Hawaii

TH

abbreviation:  Thermite or Magnesium Bomb

THI

abbreviation:  Time Handed In

tholes

nautical:  The pins in the gunwale of a boat which are used for oarlocks.

Thorny

abbreviation:  Thorny or Thorny-Craft (boilers)

THOU

abbreviation:  Thousand

THQ

abbreviation:  Theater Headquarters (Army)

thread

nautical:  The spiral part of a screw.

thwarts

nautical:  Boards extending across a rowboat just below the gunwale to stiffen the boat and to provide seats.

TI

abbreviation:  Terminal Island (San Pedro)

TI

abbreviation:  Training Instructor

TI

abbreviation:  Treasure Island (San Francisco Bay)

TIC

abbreviation:  Technical Intelligence Center (Navy)

tie plate

nautical:  A single fore-and-aft or diagonal course of plating attached to deck beams under a wood deck to give extra strength.

Tigercat

abbreviation:  See F7F-#

TIIC

abbreviation:  Technical Industrial Intelligence Committee

tiller

nautical:  An arm attached to the rudder head for operating the rudder.

Tin Can

glossary:  Slang for a navy destroyer.

TINA

abbreviation:  Identification of radio operators by personal keying characteristics (RFP — radio finger printing)

TINSY

abbreviation:  Treasure Island Naval Shipyard

TIO

abbreviation:  Target Indication Officer

TIR

abbreviation:  Target Indication Room

TIS

abbreviation:  Technical Information Section (Navy)

TIS

abbreviation:  Theater Intelligence Section

TIU

abbreviation:  Target Indication Unit

TJ

abbreviation:  Trinidad to Rio de Janeiro (routing designation)

Tk.

blueprints:  Tank.

Tk

abbreviation:  Tank

Tl

abbreviation:  Trial

TLoan

abbreviation:  Termination Loan

TLP

abbreviation:  Torpedo Landplane

TLP

abbreviation:  Total Loss of Pay

TLR

abbreviation:  Triangulation-Listening-Ranging (sonar)

TM

abbreviation:  Technical Manual (Army)

TM

abbreviation:  Torpedoman’s Mate

TM

abbreviation:  Tractor Monoplane

TM

abbreviation:  Trinidad to Gibraltar (routing designation)

TMB

abbreviation:  David W. Taylor Model Basin [at Carderock, Maryland]

TME

abbreviation:  Torpedoman’s Mate, Electrical

TMF

abbreviation:  Trinidad to Gibraltar, Fast (routing designation)

TMV

abbreviation:  Torpedoman’s Mate, Aviation

TNT

abbreviation:  A high explosive (trinitro-toluol)

TO

abbreviation:  Netherlands West Indies to New York (routing designation)

TO

abbreviation:  Northwest Africa to Aruba or Curaçao (routing designation)

TO

abbreviation:  Take Off

TO

abbreviation:  Technical Observer (flying)

TOBEDI

abbreviation:  To be disposed of (vessels)

TOBELE

abbreviation:  To be leased (vessels)

TOBELN

abbreviation:  To be loaned (vessels)

TOC

abbreviation:  Tanker Operational Circular

TOC

abbreviation:  Trinidad to Curaçao (routing designation)

TOD

abbreviation:  Time of Delivery

toe

nautical:  The edge of a flange on a bar.

TOG Method

abbreviation:  Target-Observer-Gun Method (Army)

toggle pin

nautical:  A pin having a shoulder and an eye worked on one end, called the head, and whose other end, called the point, has its extremity hinged in an unbalanced manner so that after being placed through a hole, it forms a T-shaped locking device to keep the pin from working out or being withdrawn without first bringing the hinged portion into line with the shaft of the pin.

tongue and groove

nautical:  The term applied to a plank or board which has one edge cut away to form a projection, or tongue, and the opposite edge cut out to form a groove, the tongue of one plank fitting into the groove of the adjoining plank.

tonnage, gross

nautical:  The entire internal cubic capacity of a vessel expressed in "tons" taken at 100 cubic feet each. The peculiarities of design and construction of the various types of vessels and their parts necessitate certain explanatory rulings in connection with this term.

tonnage, net

nautical:  The internal cubic capacity of a vessel which remains after the capacities of certain specified spaces have been conducted from the gross tonnage. Tonnage should not be confused with displacement.

TOO

abbreviation:  Time of Origin

top breadth

nautical:  The width of vessel measured across the shelter deck.

TopoEngr

abbreviation:  Topographical Engineer

topping lift

nautical:  A rope or chain extending from the head of a boom or gaff to a mast, or to the vessel’s structure, for the purpose of supporting the weight of the boom or gaff and its loads, and permitting the gaff or boom to be raised or lowered.

TOPSEC

abbreviation:  Top Secret

topside

nautical:  That portion of the side of the hull which is above the designed waterline. On or above the weather deck.

TOR

abbreviation:  Time of Receipt

TORP

abbreviation:  Torpedo

TORP

abbreviation:  Torpedoman

Torpedo defense

orders:  A condition of readiness for repelling a torpedo attack. All antisubmarine gun crews and control parties report to their stations on the double. Engineering and Damage Control stations go on the alert.

torpedo juice

glossary:  Slang for grade A (drinking) alcohol. The Navy manual required that the gyros (guidance system) on the torpedos be cleaned with Grade A alcohol. This made the torpedo gang very popular with other members of the crew.

torpedos

glossary:  Two torpedo mounts, each with five 21-inch diameter torpedos. Each torpedo carried 600 pounds of explosives. The forward mount was situated between the two smoke stacks. The rear mount was between the rear stack and forward on gun #3.

TorpRon

abbreviation:  Torpedo Squadron

torque

nautical:  The moment of a system of forces that causes rotation, as of a shaft or a rudder stock.

Toss oars

orders:  An order given to raise the oars from the rowlocks to a perpendicular position, blades fore and aft, with the handles resting on the bottom of the boat.

TOT

abbreviation:  Time of Transmission (or Time on Tape)

TOT

abbreviation:  Time Over Target

Tp

abbreviation:  Telephone

TPA

abbreviation:  Transfer of Pay Account

TPI

abbreviation:  Target Position Indicator

TpOp

abbreviation:  Telephone Operator

TR/FLRES

abbreviation:  Transferred to Fleet Reserve

TR

abbreviation:  Technical Regulations (Army)

TR

abbreviation:  Torpedo Reconnaissance Aircraft

Tr

abbreviation:  Transfer(red)

TRA

abbreviation:  Training

Trac

abbreviation:  Tractor

TraComd

abbreviation:  Training Command

TraComdLant

abbreviation:  Training Command, Atlantic Fleet

TraComdPac

abbreviation:  Training Command, Pacific Fleet

TraComdSubPac

abbreviation:  Training Command, Submarines, Pacific Fleet

TraComdWestCoast

abbreviation:  Training Command, West Coast

Tractor Group

abbreviation:  Convoy of ships (usually LSTs or LSVs) whose destination is an amphibious assault and whose cargo is principally tracked vehicles used in assault

TRADET

abbreviation:  Training Detachment

TrainBaseFor

abbreviation:  Train Base Force, Pacific Fleet

TrainLant

abbreviation:  Train Atlantic Fleet

TrainRon

abbreviation:  Train Squadron (later ServRon or SerRon)

TranC

abbreviation:  Transient Center (USMC)

TRANS DEP

abbreviation:  Transportation of dependents

Trans. Gird.

blueprints:  Transverse Girder.

TRANS

abbreviation:  Transport(ation)

TransDiv

abbreviation:  Transport Division

TransGrpPhibFor

abbreviation:  Transportation Group Amphibious Forces

TransGrpSoPac

abbreviation:  Transport Group, South Pacific Force

TransLant

abbreviation:  Transports, Atlantic Fleet

transom frame

nautical:  The last transverse frame of a ship’s structure. The cant frames, usually normal to the round of the stern, connect to it.

transom, transom board

nautical:  The board forming the stern of a square-ended row boat or small yacht.

transom

nautical:  A seat or couch built at the side of a stateroom or cabin, having lockers (transom lockers) or drawers underneath.

TransPhibLant

abbreviation:  Transports, Amphibious Force, Atlantic Fleet

TransRon

abbreviation:  Transport Squadron

transverse frames

nautical:  Vertical athwartship members forming the ribs.

transverse

nautical:  At right angles to the ship’s fore-and-aft center line.

TraSta

abbreviation:  Training Station

Traveler

abbreviation:  See GB-#

TrBr

abbreviation:  Transportation Brand

treads

nautical:  The steps or horizontal portions of a ladder or staircase upon which the foot is placed.

treenails

nautical:  Wooden pins employed instead of nails or spikes to secure the planking of a wooden vessel to the frames.

Trice clothes line clear of the deck

orders:  Hoist clothes lines so that they do not interfere with other ship’s work.

trim

nautical:  The arithmetic sum of the drafts forward and aft above and below the mean water-line. The angle of trim is the angle between the plane of flotation and the mean water-line plane. A vessel "trims by the head" or "trims by the stern" when the vessel inclines forward or aft so that her plane of flotation is not coincident with her mean water-line plane. See Drag.

tripping brackets

nautical:  Flat bars or plates placed at various points on deck girders, stiffeners, or beams as a reinforcement to prevent their free flanges from tipping.

TRLP

abbreviation:  Transport Landplane

Trng d

abbreviation:  Training duty

Trng

abbreviation:  Training

Trs

abbreviation:  Troops

TRSP

abbreviation:  Transport seaplane

TRSY

abbreviation:  Treasury

trunk

nautical:  A vertical or inclined shaft formed by bulkheads or casings, extending one or more deck heights, around openings in the decks, through which access can be obtained, cargo, stores, etc., handled, or ventilation provided without disturbing or interfering with the contents or arrangements of the adjoining spaces.

TS

abbreviation:  Tanapap, Saipan

TS

abbreviation:  Time Shack (NAS Operations Desk)

TSCC

abbreviation:  Top Secret Control Channels

TSCO

abbreviation:  Top Secret Control Officers

TSCP

abbreviation:  Top Secret Control Proceeding

TSCS

abbreviation:  Top Secret Control Section

TSgt(C)

abbreviation:  Technical Sergeant (Commissary)

TSgt

abbreviation:  Technical Sergeant

TSMG

abbreviation:  Thompson Submachine Gun

TSP

abbreviation:  Torpedo Seaplane

TT

abbreviation:  Target Towing Aircraft

TT

abbreviation:  Teletypewriter

TTF

abbreviation:  Training Task Force

TTPE

abbreviation:  Total Taxable Pay Earned

TTSA

abbreviation:  Transitional Training Squadron, Atlantic

TTSFP

abbreviation:  Training Transition School (Squadron), Pacific Fleet

TTSP

abbreviation:  Transition Training Squadron, Pacific

TU

abbreviation:  Task Unit

TU

abbreviation:  Thank you

TU

abbreviation:  Training Unit (Army)

TU

abbreviation:  United Kingdom to United States (Troop) (routing designation)

tumble home

nautical:  The decreasing of a vessel’s beam above the waterline as it approaches the rail. Opposite of flare.

Turb Elec

abbreviation:  Turbine Electric

Turb

abbreviation:  Turbines

Turn to, wet down the deck

orders:  Wet and scrub down the decks.

Turn to

orders:  Commence ship’s work.

turnbuckles

nautical:  Used to pull objects together. A link into whose opposite ends two threaded bars, one left-handed, the other right-handed, are inserted.

turrets

nautical:  Structures designed for the mounting and handling of the guns and accessories (usually main battery guns) of a war vessel. Turrets are constructed so as to revolve about a vertical axis usually be means of electrical or hydraulic machinery.

TUSA

abbreviation:  Third United States Army

Tutor

abbreviation:  See N2T

TVG

abbreviation:  Time Variation of Gain

Twin-Wasp Jr.

abbreviation:  Naval aircraft engine, 14 cylinders, manufactured by Pratt and Whitney

Twin-Wasp

abbreviation:  Naval aircraft engine, 14 cylinders, manufactured by Pratt and Whitney

TWL

abbreviation:  Leased Teletypewriter Service

Two blocks

orders:  When the two blocks of a tackle have been drawn as close together as possible. All the way up. This is said of boats, flags, or any objects which are hoisted with block and tackle.

TWPL

abbreviation:  Teletypewriter, Private Line

TWX

abbreviation:  Commercial Teletypewriter Exchange System

Tx

abbreviation:  Texas

TX

abbreviation:  Transmitter (general term)

U-sec

abbreviation:  Micro-seconds

U/C

abbreviation:  Unclassified

U/F

abbreviation:  Unit of Fire (Army)

U/I

abbreviation:  Unidentified

U/S or US

abbreviation:  Unserviceable

U

abbreviation:  Chance Vought Aircraft (Division, United Aircraft Corporation) (manufacturer’s symbol)

U

abbreviation:  Vought-Sikorsky (Division, United Aircraft Corporation) (manufacturer’s symbol)

UAP

abbreviation:  Utility Amphibian Plane

UC

abbreviation:  Under Construction

UC

abbreviation:  United Kingdom to New York (routing designation)

UCDWR

abbreviation:  University of California Division of War Research

UCO

abbreviation:  Universal weather landing code

UCT

abbreviation:  United Kingdom to New York (Troop) (routing designation)

UDCA

abbreviation:  Undesirable discharge, trial by civil authorities

UDDE

abbreviation:  Undesirable discharge, desertion without trial

UDFE

abbreviation:  Undesirable discharge, fraudulent enlistment

UDT

abbreviation:  Underwater Demolition Team

UDTPhibsPac

abbreviation:  Underwater Demolition Teams, Amphibious Forces, Pacific Fleet

UDUF

abbreviation:  Undesirable discharge, unfitness

UFU

abbreviation:  Utility Flight Unit

UG

abbreviation:  United States to Mediterranean (routing designation)

UGF

abbreviation:  United States to Mediterranean, Fast (routing designation)

UGS

abbreviation:  United States to Mediterranean, Slow (routing designation)

UHF

abbreviation:  Ultra High Frequency

UIM

abbreviation:  Ufficio Informazioni Militaire (Italy)

UK

abbreviation:  United Kingdom

UKIP

abbreviation:  United Kingdom Import Plan

ULP

abbreviation:  Utility landplane

umbrella

nautical:  A metal shield in the form of a frustrum of a cone, secured to the outer casing of the smokestack over the air casing to keep out the weather.

UN

abbreviation:  United Nations

Uncle Run

glossary:  Anti-aircraft practice, for which the best guess is that simulated attack was down one side of the ship, around the stern and up the other side, more or less in the shape of the letter "U". From the letter "U" the US Navy phonetic alpha code "Uncle" run was derived.

Uncle

abbreviation:  "U" in the phonetic alphabet, replacing the obsolete "Unit"

Uncover

orders:  Remove headwear.

UnderSecNav

abbreviation:  Under Secretary of the Navy

UNIF GRAT

abbreviation:  Uniform gratuity

Uniform of the day is undress blue and white hats

orders:  An order stating the uniform of the day, in this case undress blue.

Unit

abbreviation:  "U" in the phonetic alphabet, now obsolete and replaced by "Uncle"

Univ

abbreviation:  Universal

UNLOD

abbreviation:  "Discharging"

UNO

abbreviation:  United Nations Organization (now UN)

UNORDGAN

Bureau of Personnel Condensation Code:  Unexecuted portion of orders hereby cancelled

UNRRA

abbreviation:  United Nations Relief and Rehabilitation Administration

unship

nautical:  To remove anything from its accustomed or stowage place; to take apart.

Up all hammocks

orders:  At 0700 all men who have mid-watches must get up and stow their hammocks.

Up behind

orders:  Slack up quickly. This order is normally used after “Walk Back Handsomely.”

Up oars

orders:  An order given to raise the oars from the boat to a position of toss.

Up. Dk.

blueprints:  Upper Deck.

UPO

abbreviation:  Unit Personnel Office (Army)

upper deck

nautical:  Generally applied to the uppermost continuous weather deck.

upper works

nautical:  Superstructures or deck erections located on or above the weather deck. Sometimes applied to the entire structure above the waterline.

uptake

nautical:  A sheet-metal conduit connecting the boiler smoke boy with the base of the smokestack. It conveys the smoke and hot gases from the boiler to the stack and is usually made with double walls, with an air space between to prevent radiation of heat into adjacent spaces.

UR

abbreviation:  Your(s)

URAD

abbreviation:  Your Radio

URDIS

abbreviation:  Your Dispatch

URLTR

abbreviation:  Your Letter

URMGM

abbreviation:  Your Mailgram

URMSG

abbreviation:  Your Message

URSER

abbreviation:  Your Serial

URTEL

abbreviation:  Your Telegram

US

abbreviation:  United States

USA

abbreviation:  U.S. Army

USAAF

abbreviation:  U.S. Army Air Forces

USAAFIME

abbreviation:  U.S. Army Air Forces in the Middle East

USAASC

abbreviation:  U.S. Army Air Service Command

USAF

abbreviation:  U.S. Army Forces

USAFI

abbreviation:  U.S. Armed Forces Institute

USAFICPA

abbreviation:  U.S. Army Forces in the Central Pacific Area

USAFIK

abbreviation:  U.S. Army Forces in Korea

USAFIME

abbreviation:  U.S. Army Forces in the Middle East

USAFISPA

abbreviation:  U.S. Army Forces in the South Pacific Area

USAFSA

abbreviation:  U.S. Army Forces in South America

USAIRMILCOMUNO

abbreviation:  U.S. Army Air Force Representative, UN Military Staff Committee

USASOS

abbreviation:  U.S. Army Service of Supply

USAT

abbreviation:  U.S. Army Transport

USBATU

abbreviation:  U.S.-Brazil Aviation Training Unit

USC(A)

abbreviation:  U.S. Code (Annotated)

USC&GS

abbreviation:  U.S. Coast and Geodetic Survey

USCC

abbreviation:  U.S. Commercial Company

USCG

abbreviation:  U.S. Coast Guard

USCGA

abbreviation:  U.S. Coast Guard Academy

USCGC

abbreviation:  U.S. Coast Guard Cutter

USCGR

abbreviation:  U.S. Coast Guard Reserve

USEES

abbreviation:  U.S. Naval Engineering Experiment Station (Annapolis)

USF (No.)

abbreviation:  Current Tactical Orders and Doctrine, U.S. Fleet (No.)

USF

abbreviation:  U.S. Fleet

USFR 2

abbreviation:  See F

USFR 3 C

abbreviation:  See F

USFR 4 C

abbreviation:  See F

USFR 4 D

abbreviation:  See F

USFR 5

abbreviation:  See F

USFR

abbreviation:  U.S. Fleet Reserve

USFRD 3 D

abbreviation:  See F

USHP

abbreviation:  U.S. Helium Plant (Amarillo)

USL

abbreviation:  Underwater Sound Laboratory

USLO

abbreviation:  U.S. Liaison Officer

USMA

abbreviation:  U.S. Military Academy (West Point)

USMAPU

abbreviation:  U.S. Military Academy Preparatory Unit

USMB

abbreviation:  U.S. Marine Barracks

USMC

abbreviation:  U.S. Marine Corps

USMC

abbreviation:  U.S. Maritime Commission

USMCAS

abbreviation:  U.S. Marine Corps Air Station

USMCR(F)

abbreviation:  U.S. Fleet Marine Corps Reserve

USMCR(O)

abbreviation:  U.S. Organized Marine Corps Reserve

USMCR(V)

abbreviation:  U.S. Volunteer Marine Corps Reserve

USMCR

abbreviation:  U.S. Marine Corps Reserve

USMCWR

abbreviation:  U.S. Marine Corps Women’s Reserve

USMEMMILCOMUNO

abbreviation:  U.S. Members, UN Military Staff Committee

USMILCOMUNO

abbreviation:  U.S. Delegation, UN Military Staff Committee

USMS

abbreviation:  U.S. Maritime Service

USMSOS

abbreviation:  U.S. Maritime Service Officers School

USMSTS

abbreviation:  U.S. Maritime Service Training School

USN-I-CB

abbreviation:  U.S. Regular Navy-Inductee-Construction Battalion

USN-I

abbreviation:  U.S. Regular Navy-Inductee

USN-ISA

abbreviation:  U.S. Regular Navy-Inductee Special Assignment

USN-SV

abbreviation:  U.S. Regular Navy Selective Volunteer

USN

abbreviation:  U.S. Navy (also indicates Regular Navy)

USNA

abbreviation:  U.S. Naval Academy (Annapolis)

USNACC

abbreviation:  U.S. Naval Member of the Allied Control Commission (Germany)

USNATRA

abbreviation:  U.S. Naval Training

USNAVYMILCOMUNO

abbreviation:  U.S. Naval Representative, UN Military Staff Committee

USNDD

abbreviation:  U.S. Naval Drydocks

USNH

abbreviation:  U.S. Naval Hospital

USNIP

abbreviation:  U.S. Naval Institute Proceedings

USNLO

abbreviation:  U.S. Naval Liaison Officer

USNR M

abbreviation:  U.S. Merchant Marine Reserve

USNR M1

abbreviation:  U.S. Merchant Marine Reserve Seagoing

USNR M2

abbreviation:  U.S. Merchant Marine Reserve Coastal Defense

USNR O

abbreviation:  U.S. Organized Naval Reserve

USNR O1

abbreviation:  U.S. Organized Naval Reserve Seagoing

USNR O2

abbreviation:  U.S. Organized Naval Reserve Aviation

USNR SV

abbreviation:  U.S. Naval Reserve, Selective Volunteer

USNR V

abbreviation:  U.S. Volunteer Naval Reserve

USNR&SL

abbreviation:  U.S. Navy Radio and Sound Laboratory (San Diego)

USNR

abbreviation:  U.S. Naval Reserve

USNR

abbreviation:  U.S. Navy Regulations

USNTI

abbreviation:  U.S. Navy Travel Instructions

USO

abbreviation:  Under Secretary of the Navy’s Office

USO

abbreviation:  United Service Organizations

USP

abbreviation:  Utility seaplane

USRad

abbreviation:  U.S. Fleet Shore Radio Station

USREPMILCOMUNO

abbreviation:  U.S. Representative, UN Military Staff Committee

USREPOF

abbreviation:  U.S. Navy Reporting Officer

USRO

abbreviation:  U.S. Routing Office

USS

abbreviation:  U.S. Ship (naval vessel)

USSAFE

abbreviation:  U.S. Strategic Air Force, Europe

USSBS

abbreviation:  U.S. Strategic Bombing Survey

USSECMILCOMUNO

abbreviation:  The Secretary, U.S. Delegation, UN Staff Committee

USSR

abbreviation:  Union of Soviet Socialist Republics

USSTAFE

abbreviation:  U.S. Strategic Tactical Air Force, Europe

USW

abbreviation:  Undersecretary of War

USWBC

abbreviation:  U.S. War Ballot Commission

UT

abbreviation:  United States to United Kingdom (Troop) (routing designation)

UT

abbreviation:  Utility

UTC

abbreviation:  Unit Training Center (Army)

UtRon

abbreviation:  Utility Squadron

UtRonFwdArea

abbreviation:  Utility Squadron, Forward Area

UtWing

abbreviation:  Utility Wing

UtWingServLant

abbreviation:  Utility Wing, Service Force, Atlantic

UtWingServPac

abbreviation:  Utility Wing, Service Force, Pacific

V-1, V-2, V-3

abbreviation:  Divisions of the Air Department aboard an aircraft carrier

V-1

abbreviation:  Pilotless flying bomb employed by the Germans

V-2

abbreviation:  Rocket bomb employed by the Germans

V-DISC

abbreviation:  Recording of musical entertainment

V-E

abbreviation:  Victory-Europe (9 May 1945)

V-J(M)

abbreviation:  Utility, 2-engine plane

V-J

abbreviation:  Victory-Japan (14 August 1945)

V-JR

abbreviation:  Utility-transport plane

V-Loan

abbreviation:  Production loan made under regulation V (Victory) of the Federal Reserve System

V-Mail

abbreviation:  Letters transmitted by microfilm

V. K.

blueprints:  Vertical Keel.

V

abbreviation:  Canadian Vickers (manufacturer’s symbol)

V

abbreviation:  Consolidated-Vultee Aircraft Corporation(ConVAir) (manufacturer’s symbol)

V

abbreviation:  Heavier-than-air aircraft

V

abbreviation:  Lockheed Aircraft Corporation (formerly Vega Aircraft Corporation) (manufacturer’s symbol)

V

abbreviation:  Vega Aircraft Corporation (now Lockheed Aircraft Corporation) (manufacturer’s symbol)

V

abbreviation:  Vertical in line (aircraft engine)

V

abbreviation:  Vickers, Inc. (manufacturer’s symbol)

V

abbreviation:  Volunteer (U.S. Naval Reserve)

V

abbreviation:  Vultee Aircraft, Inc. (manufacturer’s symbol)

V1

abbreviation:  Accredited College Program and Naval ROTC (USNR classification)

V10

abbreviation:  WAVES Enlisted Personnel (USNR classification)

V11

abbreviation:  Midshipmen Officer Candidates O (Older Group) (USNR classification)

V12

abbreviation:  College Training Program (USNR classification)

V2

abbreviation:  Aviation Branch (USNR classification)

V3

abbreviation:  Communications (USNR classification)

V4

abbreviation:  Intelligence (USNR classification)

V5

abbreviation:  Aviation Cadets (USNR classification)

V6

abbreviation:  General Service and Specialists (USNR classification)

V7

abbreviation:  Midshipmen Officer Candidates (USNR classification)

V8

abbreviation:  Aviation Pilot Training, Enlisted Reserve (USNR classification)

V9

abbreviation:  WAVES Officer Candidates (USNR classification)

VA (D)

abbreviation:  Vice Admiral (Destroyers) (GB)

VA

abbreviation:  Ambulance plane

VA

abbreviation:  Veterans’ Administration

VA

abbreviation:  Virginia

VA

abbreviation:  Visual Training Aid Specialist

VABPF

abbreviation:  Vice Admiral British Pacific Fleet

VADM

abbreviation:  Vice Admiral

Val

glossary:  Aichi D3A1 dive-bomber, with fixed landing gear.

Valiant

abbreviation:  See SNV-#

valve

nautical:  A mechanical device used for controlling or shutting off the passage of a fluid or gas into or out of a container or through a pipe line.

VAM

abbreviation:  Vice Admiral, Malta (GB)

VAN

abbreviation:  Advanced

vane

nautical:  A fly made of bunting and carried at the masthead or truck, which, being free to rotate on a spindle, indicates the direction of the wind.

vang

nautical:  Ropes secured to the outer end of a cargo boom, the lower ends being fastened to tackles secured to the deck, used for guiding and swinging and for holding the boom in a desired position. Also applied to ropes secured to the after end of a gaff and led to each side of the vessel to steady the gaff when the sail is not set.

VAQ(VPF)

abbreviation:  Vice Admiral Administration British Pacific Fleet at Melbourne

VB

abbreviation:  Navy bombing plane

VB

abbreviation:  Navy dive bomber squadron

VBF

abbreviation:  Navy bomber-fighter squadron

VBF

abbreviation:  Navy bombing-fighting aircraft

VBT

abbreviation:  Bombing, torpedo plane

VC

abbreviation:  Composite aircraft squadron

VC

abbreviation:  Veterinary Corps (Army)

VCB

abbreviation:  Construction Battalion (USNR classification)

VCNO

abbreviation:  Vice Chief of Naval Operations

VCS

abbreviation:  Cruiser-scouting squadron

VD

abbreviation:  Photographic squadron (aircraft)

VD

abbreviation:  Venereal Disease

VDP

abbreviation:  Volunteer Reservists in drill pay status

VE

abbreviation:  Air Evacuation squadron

Veer and haul

orders:  To slack up and haul away alternately.

Veer

orders:  To slack off and allow to run out.

ventilation

nautical:  The process of providing fresh air to the various spaces and removing foul or heated air, gases, etc., from them. This may be accomplished by natural draft or by mechanical means.

ventilators, bell-mouthed or cowl

nautical:  Terminals on open decks in the form of a 90-degree elbow with enlarged or bell- shaped openings, so formed as to obtain an increase of air supply when facing the wind and to increase the velocity of air down the ventilation pipe.

Ventura

abbreviation:  See PV-1-3

Vert 2-exp

abbreviation:  Vertical double expansion engine

Vert 3-exp

abbreviation:  Vertical triple expansion engine

Vert 4-exp

abbreviation:  Vertical quadruple expansion engine

Vert.

blueprints:  Vertical.

Very well

orders:  An officer’s response indicating that the situation is understood, for example, given to the steersman after his report. "All right" should not be used since it might be construed to mean "right rudder".

VES

abbreviation:  Vessel

VESCA(S)

abbreviation:  Vessels and Cargo

VET

abbreviation:  Veteran

VetAdm

abbreviation:  Veterans Administration

VF(M)

abbreviation:  Fighter plane (two-engine)

VF(N)

abbreviation:  Navy night fighter squadrons

VF

abbreviation:  Navy fighter plane

VF

abbreviation:  Navy fighter squadron

VFB

abbreviation:  Fighter bombing plane

VG

abbreviation:  Light transport plane (single-engine)

VG

abbreviation:  Very good

VGF

abbreviation:  Escort-fighting squadron

VGS

abbreviation:  Escort-scouting squadron

VH

abbreviation:  Ambulance plane

VH

abbreviation:  Navy rescue squadron

VHF

abbreviation:  Very High Frequency

VI

abbreviation:  Virgin Islands

Vice Adm

abbreviation:  Vice Admiral

Vice Admiral

glossary:  The commissioned navy rank above rear admiral and below admiral; designated O-9. Abbreviated VADM.

Vice CNO

abbreviation:  Vice Chief of Naval Operations

Victor

abbreviation:  "V" in the phonetic alphabet

Vindicator

abbreviation:  See SB2U- #

VIO

abbreviation:  Visual Intercept Officer

VIP

abbreviation:  Very Important Person

Viper

abbreviation:  See Baka

VIPI

abbreviation:  Very Important Person Indeed

VIR

abbreviation:  Virginia

VIS

abbreviation:  Visibility

VIS

abbreviation:  Visual

visor

nautical:  A small inclined awning running around the pilot house over the windows or air ports to exclude the glare of the sun or to prevent rain or spray from coming in the openings when the glazed frames are dropped or opened. They may be of canvas or metal.

VJ

abbreviation:  Navy utility squadrons

VJ

abbreviation:  Utility plane

VK

abbreviation:  Drone

VKN

abbreviation:  Target drone (training)

VL

abbreviation:  Glider

VLA

abbreviation:  Very Low Altitude

VLB

abbreviation:  Navy glider (special)

VLN

abbreviation:  Training glider

VLR

abbreviation:  Transport glider

VLR

abbreviation:  Very long range (aircraft)

VM

abbreviation:  Anti-aircraft Gunnery Instructors

VM

abbreviation:  Aviation Free Gunnery Instructors

VM

abbreviation:  Discharge Interviewers

VM

abbreviation:  Engineering Inspectors

VM

abbreviation:  Inspectors of Aviation Material

VM

abbreviation:  Ordnance Inspectors

VM

abbreviation:  Position Classifiers

VM

abbreviation:  V-Mail Specialists

VMB

abbreviation:  Marine medium and heavy patrol bomber squadron (land-based and seaplane)

VMBF

abbreviation:  Marine fighter bomber squadrons

VMD

abbreviation:  Marine photographic squadrons

VMF(N)

abbreviation:  Marine night fighter squadrons

VMF

abbreviation:  Marine fighter squadrons

VMJ

abbreviation:  Marine utility squadron

VML

abbreviation:  Marine glider squadron

VMO(AS)

abbreviation:  Marine observation squadron (artillery spotting)

VMO

abbreviation:  Marine observation squadron

VMR

abbreviation:  Marine transport squadron

VMSB

abbreviation:  Marine scout bombing squadron

VMTB

abbreviation:  Marine torpedo bomber squadron

VN

abbreviation:  Training plane

VO

abbreviation:  Navy battleship observation squadron

VO

abbreviation:  Observation plane

VO

abbreviation:  Verbal Order (Army)

VOC

abbreviation:  Navy observation spotter squadron

VOC

abbreviation:  Volunteer Officer Candidate (Army)

VOF

abbreviation:  Navy observation fighter squadron

VOG

abbreviation:  Navy observation plane squadron

voice tube

nautical:  A tube designed for the carriage of the human voice from one part of the ship to another. In its simplest form the voice-tube system includes a speaking connection between the pilot house and engine room only. In large war vessels the system becomes very complicated. Voice tubes are generally made up to about four inches in diameter and fitted with appropriate speaking and listening terminals. Telephones have largely replaced them.

VOL

abbreviation:  Volunteer

VOpNav

abbreviation:  Vice Chief of Naval Operations (usually VCNO)

VOS

abbreviation:  Observation scout plane

VOU

abbreviation:  Voucher

Voyager

abbreviation:  See JRB-2-3- 4

VP

abbreviation:  Navy patrol squadron

VP

abbreviation:  Patrol plane

VP

abbreviation:  Venereal Pamphlet

VPB (HL)

abbreviation:  Patrol Bomber, 4-engine, landplane

VPB (HS)

abbreviation:  Patrol Bomber, 4-engine, seaplane

VPB (ML)

abbreviation:  Patrol Bomber, 2-engine, landplane

VPB (MS)

abbreviation:  Patrol Bomber, 2-engine, seaplane

VPB

abbreviation:  Navy medium and heavy patrol bomber squadron (land-based and seaplane)

VPB

abbreviation:  Patrol-bombing plane

VPB

abbreviation:  Vertical Plot Board

VPR-NMP

abbreviation:  VPR with Navigational Microfilm Projector (radar)

VPR

abbreviation:  Virtual PPI Reflectoscope (radar)

VPT

abbreviation:  Patrol-torpedo plane

VR (HL)

abbreviation:  Transport, 4-engine, landplane

VR (HS)

abbreviation:  Transport, 4-engine, seaplane

VR (ML)

abbreviation:  Transport, 2-engine, landplane

VR (MS)

abbreviation:  Transport, 2-engine, seaplane

VR

abbreviation:  Navy transport squadron

VR

abbreviation:  Transport plane (multi-engine)

VS

abbreviation:  Navy shore-based scouting squadron

VS

abbreviation:  Scouting plane

VS

abbreviation:  Visual Signal

VSB

abbreviation:  Scout-bombing plane

VSN (M)

abbreviation:  Training plane, 2-engine

VSN

abbreviation:  Scout-training plane

VSO

abbreviation:  Scout observation plane

VT fuse

abbreviation:  Variable Time fuse

VT-Loan

abbreviation:  Combination Production Termination loan

VT(N)

abbreviation:  Navy night torpedo bomber squadron

VT

abbreviation:  Navy torpedo bomber squadron

VT

abbreviation:  Torpedo plane

VT

abbreviation:  Vermont

VTB

abbreviation:  Torpedo-bombing plane

VTD

abbreviation:  Navy aircraft (training)

VTO

abbreviation:  Visual Training Officer

VTO

abbreviation:  Vocational Training Officer

W-F

abbreviation:  White-Forster (boilers)

W-V(S) (CEC)

abbreviation:  Commissioned officers of the Women’s Reserve appointed for duties in connection with the Civil Engineering Corps of the Navy. This classification was abolished in September 1944 and officers were assigned the new classification for which best qualified.

W-V(S) (DC)

abbreviation:  Commissioned officers of the Women’s Reserve appointed for duties in connection with the Dental Corps of the Navy. This classification was abolished in September 1944 and officers were assigned the new classification for which best qualified.

W-V(S) (H)

abbreviation:  Commissioned officers of the Women’s Reserve appointed for duties in connection with the Hospital Corps of the Navy. This classification was abolished in September 1944 and officers were assigned the new classification for which best qualified.

W-V(S) (MC)

abbreviation:  Commissioned officers of the Women’s Reserve appointed for duties in connection with the Medical Corps of the Navy. This classification was abolished in September 1944 and officers were assigned the new classification for which best qualified.

W-V(S) (SC)

abbreviation:  Commissioned officers of the Women’s reserve appointed for duties in connection with the Supply Corps of the Navy. This classification was abolished in September 1944 and officers were assigned the new classification for which best qualified.

W-V(S)

abbreviation:  Commissioned officers of the Women’s Reserve appointed for emergency duties. This classification was abolished in September 1944 and officers were assigned the new classification for which best qualified.

W. L.

blueprints:  Water Line.

W. T. Flt.

blueprints:  Watertight F.

W. T.

blueprints:  Watertight.

W(s)

abbreviation:  Watt(s)

W/T

abbreviation:  Wireless Telegraphy (GB)

W&R

abbreviation:  Welfare and Recreation

W

abbreviation:  Canadian Car and Foundry (plane manufacturer’s symbol)

W

abbreviation:  Special search mission (suffix to plane designation)

W

abbreviation:  USNR officer designation for Women’s Reserve, Unlimited Service. Formerly (W).

W

abbreviation:  Waco Aircraft Company (plane manufacturer’s symbol)

W

abbreviation:  Willys-Overland (plane manufacturer’s symbol)

WA

abbreviation:  USNR officer designation for Women’s Reserve, Aviation Nonflying Duties. Formerly W(A).

WA

abbreviation:  Western Approaches (to GB)

WAA

abbreviation:  War Assets Administration

WAAC

abbreviation:  Women’s Auxiliary Army Corps

WAC

abbreviation:  Women’s Army Corps

wales

nautical:  The side planking on a wood ship lying between the bottom and the top-side planking.

Walk back

orders:  Keep the gear in hand but walk back with it towards the belaying point. This is usually used with "Handsomely" to prevent losing control of the boat before the fore -in-handling has been tested.

WANAP

abbreviation:  Washington National Airport

War-Weary

abbreviation:  Over-age bombers equipped with Block (See Block)

wardroom

nautical:  A room or space on shipboard set aside for use of the officers for social purposes and also used as their mess or dining room.

Warm up all booster pumps and stand by

orders:  An order to cut in the steam and warm up the pumps so that they may be used for transferring fuel oil.

warp

nautical:  A light hawser or tow rope; to move a vessel along by means of lines or warps secured to some fixed object.

wash plates

nautical:  Plates fitted fore and aft between floors to check the rush of bilge water from side to side when the ship is rolling.

WASH

abbreviation:  Washington (State)

WASHDC

abbreviation:  Washington, D.C.

WASHN

abbreviation:  Washington

Wasp Junior

abbreviation:  Naval aircraft engine, 9 cylinders, manufactured by Pratt and Whitney

Wasp

abbreviation:  Naval aircraft engine, 9 cylinders, manufactured by Pratt and Whitney

WASPS

abbreviation:  Women’s Airforce Service Pilots

WAT

abbreviation:  Key West to Aruba to Trinidad (routing designation)

Water Buffalo

abbreviation:  A Landing Vehicle, Tracked (LVT)

water line

nautical:  A term used to describe a line drawn parallel to the molded base line and at a certain height above it, as the 10-foot water line. It represents a plane parallel to the surface of the water when the vessel is floating on an even keel, i.e., without trim. In the body plan and the sheer plan it is a straight line, but in the plan view of the lines it shows the contour of the hull line at the given distance above the base line. Used also to describe the line of intersection of the surface of the water with the hull of the ship at any draft and any condition of trim.

watershed

nautical:  A fitting on the outside of the shell of a ship over an air port, a door, or a window to prevent water which runs down the ship’s side from entering the opening. One over an air port is also called a Brow or a Port Flange.

watertight compartment

nautical:  A space or compartment within a ship having its top, bottom, and sides constructed in such a manner as to prevent the leakage of water into or from the space unless the compartment is ruptured.

waterway bar

nautical:  An angle or flat bar attached to a deck stringer plate forming the inboard boundary of a waterway and serving as an abutment for the wood deck planking.

waterway

nautical:  A narrow channel along the edge of the deck for the collection and disposal of water occurring on the deck.

WATU

abbreviation:  Western Approaches Tactical Unit

WAVES

abbreviation:  Women Accepted for Volunteer Emergency Service (U.S. Navy Women’s Reserve)

Way enough

orders:  An order given to finish the stroke, toss and boat the oars.

ways

nautical:  See launching

WB

abbreviation:  Weather Bureau

WC

abbreviation:  USNR officer designation for Women’s Reserve, Communications Duties. Formerly W(C).

WC1

abbreviation:  USNR officer designation for Women’s Reserve, Special Communications Duties. Same as SC1. Formerly W(C1).

WC2

abbreviation:  USNR officer designation for Women’s Reserve, Special Communications Duties. Same as SC2. Formerly W(C2).

WCA

abbreviation:  Sound gear combination installation for sonar

WCAB

abbreviation:  Working Committee of the Aeronautical Board

WCBSU

abbreviation:  West Coast Base Service Unit

WCDC

abbreviation:  West Coast (Naval Publications) Distribution Center

WCPAB

abbreviation:  War Control Price Adjustment Board

WD

abbreviation:  USNR officer classification; qualified for Deck Watch

WD

abbreviation:  War Department

WDA

abbreviation:  Sound gear combination installation for sonar

WDC

abbreviation:  Washington Document Center

WDC

abbreviation:  Western Defense Command (Army)

WDCSA

abbreviation:  War Department Chief of Staff, US Army

WDGF

abbreviation:  War Department Ground Forces

WDGS

abbreviation:  War Department General Staff

WDI

abbreviation:  War Department Intelligence

WDPMG-ID

abbreviation:  War Department Provost Marshal General, Investigation Division

WDSS

abbreviation:  War Department Special Staff

WE

abbreviation:  USNR officer designation for Women’s Reserve, engineering duties. Formerly W(E).

WEA

abbreviation:  Weather

weather deck

nautical:  A term applied to the upper, awning, shade, or shelter deck, or to the uppermost continuous deck, exclusive of forecastle, bridge, or poop, that is exposed to the weather.

web frame

nautical:  A built-up frame to provide extra strength consisting of a web plate with flanges on its edges, placed several frame spaces apart, with the smaller, regular frames in between.

web

nautical:  The vertical portion of a beam; the athwartship portion of a frame; the portion of a girder between the flanges.

wedges

nautical:  Wood or metal pieces shaped in the form of a sharp V, used for driving up or for separating work. They are used in launching to raise the vessel from the keel blocks and thus transfer the load to the cradle and the sliding ways.

WEFT

abbreviation:  Wings, Engines, Fusilage, Tail (system for recognition of aircraft)

welding

nautical:  For all welding definitions see “General Specifications for Inspection of Material, Appendix VII, Welding, Part A, Section A-1, Welding Nomenclature and Definitions,” issued by the Navy Department.

WES

abbreviation:  West(ern)

WesAustralianFor

abbreviation:  West Australian Force

WesCar

abbreviation:  Western Carolines

WesCarSubArea

abbreviation:  Western Carolines Sub-Area

WesCoBaseServUnit

abbreviation:  West Coast Base Service Unit

WesCoSoundScol

abbreviation:  West Coast Sound School

WesSeaFron

abbreviation:  Western Sea Frontier

Westgh

abbreviation:  Westinghouse

WESTOMP

abbreviation:  West-Ocean Meeting Point

WestPacBaCom

abbreviation:  Western Pacific Base Command

WestSeaFron

abbreviation:  Western Sea Frontier

WESTUNION

abbreviation:  Western Union

WESTVIR

abbreviation:  West Virginia

WFA

abbreviation:  Sound gear combination installation for sonar

WFA

abbreviation:  War Food Administration

WFT

abbreviation:  Turbo Geared Drive Machinery

What’s your heading

orders:  A request to the steersman to report the course he is on.

whip

nautical:  A term loosely applied to any tackle used for hoisting light weights and serves to designate the use to which a tackle is put rather than to the method of reeving the tackle.

Whirlwind

abbreviation:  Naval aircraft engine, 7 cylinders, manufactured by both Wright and Naval Aircraft Factory

Whirlwind

abbreviation:  naval aircraft engine, 9 cylinders, manufactured by Wright

WHX

abbreviation:  St. Johns, Newfoundland, Joiner to HX (New York to United Kingdom) (routing designation)

WI

abbreviation:  Oak Harbor, Whidbey Island, Washington

WI

abbreviation:  USNR officer designation for Women’s Reserve, intelligence duties. Formerly W(I).

WIA

abbreviation:  Wounded In Action

Widgeon

abbreviation:  See J4F-#

Wilco

abbreviation:  I understand and will comply

Wildcat

abbreviation:  See F4F-#, FM-#

wildcat

nautical:  A special type of drum whose faces are so formed as to fit the links of a chain of given size.

William

abbreviation:  "W" in the phonetic alphabet

WIMS

abbreviation:  Wartime Instructions for Merchant Ships

winch

nautical:  A hoisting or pulling machine fitted with a horizontal single or double drum. A small drum is generally fitted on one or both ends of the shaft supporting the hoisting drum. These small drums are called gypsies, niggerheads, or winch heads. The hoisting drums either are fitted with a friction brake or are directly keyed to the shaft. The driving power is usually steam or electricity, but hand power is also used. A winch is used principally for the purpose of handling, hoisting, and lowering cargo from a dock or lighter to the hold of a ship and vice versa.

wind scoop

nautical:  A scoop-shaped fitting of sheet metal which is placed in an open air port with the open side forward for the purpose of catching air and forcing it into a cabin, stateroom, or compartment.

windlass

nautical:  An apparatus in which horizontal or vertical drums or gypsies and wildcats are operated by means of a steam engine or motor for the purpose of handling heavy anchor chains, hawsers, etc.

Window

abbreviation:  Radar countermeasure

Window

glossary:  Substance (such as foil) dropped by enemy planes to hinder the effectiveness of the ship’s radar to track planes and direct anti-aircraft fire.

wing, winging

nautical:  A term used to designate structural members, compartments, sails, and objects on a ship that are located a considerable distance off the fore-and-aft center line.

WIS

abbreviation:  Wisconsin

Wkr

abbreviation:  Worker

WL

abbreviation:  USNR officer designation for Women’s Reserve, legal specialist duties. Formerly W(L).

WLTE

abbreviation:  Warrant loss to enlisted status; revocation of appointment

WM

abbreviation:  USNR officer classification; qualified for engineering watch

WMC

abbreviation:  War Manpower Commission

WNTF

abbreviation:  Western Naval Task Force

WO

abbreviation:  USNR officer designation for Women’s Reserve, ordnance duties. Formerly W(O).

WO

abbreviation:  War Orientation

WO

abbreviation:  Warrant Officer

WOJG

abbreviation:  Warrant Officer, Junior Grade (Army)

WOO

abbreviation:  War Orientation Officer

WOP

abbreviation:  Without Payment

WOQ

abbreviation:  Wave Officers’ Quarters

worm, worm shaft

nautical:  A threaded shaft designed to engage the teeth of a wheel lying in the plane of the shaft axis. This type of gear is used for the transmission of heavy loads at low speeds.

worming

nautical:  Filling the contlines of a rope with tarred small stuff preparatory to serving, to give the rope a smoother surface and to aid in excluding moisture from the interior of the rope.

WP

abbreviation:  White Phosphorous

WPA

abbreviation:  Works Progress Administration Agency

WPB

abbreviation:  War Production Board

WPBC

abbreviation:  Western Pacific Base Command

WPD

abbreviation:  Western Procurement Division (USMC)

WPL

abbreviation:  War Plan(s)

Wpn

abbreviation:  Weapon(s)

WPNTS

abbreviation:  War Plan Naval Transportation Service

WPRI

abbreviation:  Wartime Pacific Routing Instructions

WPSC

abbreviation:  Shipping Control War Plan (Navy)

WR

abbreviation:  Women’s Reserve

WRA

abbreviation:  War Relocation Authority

wrench

nautical:  A hand tool used to exert a twisting strain, such as setting up bolts, nuts, etc.

wrinkling

nautical:  Slight corrugations or ridges and furrows in a flat plate due to the action of compressive or shear forces.

WRNS

abbreviation:  Women’s Reserve Naval Service (“Wrens”) (GB)

WRO

abbreviation:  War Records Office

WS

abbreviation:  United Kingdom to Middle East to India (routing designation)

WSA

abbreviation:  War Shipping Administration

WSC

abbreviation:  Wabana Joiner to SC (Halifax, slow, to United Kingdom) (routing designation)

WSC

abbreviation:  Working Security Committee

WSF

abbreviation:  Western Sea Frontier

WT

abbreviation:  Water Tender

WTCB

abbreviation:  Water Tender Construction Battalion

WTF

abbreviation:  Western Task Force

WTV

abbreviation:  Water Tank Vessel

WU

abbreviation:  Western Union

WUTelCo

abbreviation:  Western Union Telegraph Company

WVA

abbreviation:  West Virginia

WYO

abbreviation:  Wyoming

X&D Flot

abbreviation:  Experiment and Development Flotilla (Landing Craft)

X

abbreviation:  A suffix, which, when appended to a basic USNR line officer classification, indicates special qualifications in electronics: officers who, in addition to having the qualifications for CIC Watch Officers, are qualified in aircraft control except at night or in conditions of low visibility.

X

abbreviation:  Any punctuation (dispatches)

X

abbreviation:  Pre-Flight Center under reserve Training (not a Reserve Station)

X

abbreviation:  Prefix in standard Navy aircraft designation, designating an experimental model

XAM

abbreviation:  Merchant ship converted into a mine-sweeper (old designation)

XAP

abbreviation:  Merchant cargo ship

XAP

abbreviation:  Radio Communications Team

XAP

abbreviation:  Transport (GB)

XB

abbreviation:  Halifax to Boston (routing designation)

XCL

abbreviation:  Armed Merchant Cruiser (US)

XFM

abbreviation:  Expeditionary Force Message (usually EFM)

XMTR

abbreviation:  Transmitter

XO

abbreviation:  Executive Officer

XPC

abbreviation:  OG cutter assigned to Inshore Patrol

XPG

abbreviation:  Converted merchant ships, assigned to antisubmarine patrol or convoy escort

Xray

abbreviation:  "X" in the phonetic alphabet

XRP

abbreviation:  X-Ray and Photofluorography Technician

XRT

abbreviation:  X-Ray Technician

Y-gun

abbreviation:  Y-type depth charge projector

Y&D

abbreviation:  Bureau of Yards and Docks

Y

abbreviation:  Consolidated Aircraft Corporation (manufacturer’s symbol)

Y

abbreviation:  Consolidated-Vultee Aircraft Corporation (manufacturer’s symbol)

Y

abbreviation:  Tankers (Army symbol)

Y

abbreviation:  Yeoman

YA

abbreviation:  District Lighter, Ash

YAG

abbreviation:  District Auxiliary, Miscellaneous

YandD

abbreviation:  Bureau of Yards and Docks

YangPat

abbreviation:  Yangtze Patrol, Asiatic Fleet

Yar

abbreviation:  Yarron (boilers)

yard

nautical:  A term applied to a spar attached at its middle portion to a mast and running athwartship across a vessel as a support for a square sail, signal halyards, lights, etc.

yardarm

nautical:  A term applied to the outer end of a yard.

YC

abbreviation:  District Lighter Open

YC

abbreviation:  Yard Craft

YCK

abbreviation:  Open Cargo Lighter

YCU

abbreviation:  Aircraft Transportation lighter

YCV

abbreviation:  District Lighter, Aircraft Transportation

YD

abbreviation:  District Derrick, Floating

YDG

abbreviation:  District Degaussing Vessel

YDSD

abbreviation:  Yards & Docks Supply Depot

YDT

abbreviation:  District Diving Tender

YE

abbreviation:  Aircraft radio homing beacon (HAYRAKE)

YE

abbreviation:  District Lighter, Ammunition

YF

abbreviation:  District Lighter, Covered (self-propelled)

YF

abbreviation:  Provision Store Lighter

YF

abbreviation:  Range Tender

YFB

abbreviation:  District Ferry Boat or Launch

YFC

abbreviation:  Car Float

YFD

abbreviation:  Floating Drydock

YFN

abbreviation:  District Lighter, Covered (non self-propelled)

YFR

abbreviation:  Covered Lighter, Refrigerated (self-propelled)

YFRN

abbreviation:  Covered Lighter, Refrigerated (non self-propelled)

YFT

abbreviation:  District Lighter, Torpedo Transportation

YG

abbreviation:  District Lighter, Garbage, (self-propelled)

YG

abbreviation:  Land-based radio homing beacon (MOTHER)

YGN

abbreviation:  District Lighter, Garbage (non self-propelled)

YH

abbreviation:  District Lighter, Ambulance

YH

abbreviation:  Radar beacon

YHB

abbreviation:  District Boat, House

YHT

abbreviation:  District Scow, Heating

yield point

nautical:  The stress at which a piece of material under strain yields markedly, becoming permanently distorted without increase of load.

YJ

abbreviation:  Radar homing beacon

YK

abbreviation:  Radar beacon

YLA

abbreviation:  District Lighter, Open Landing

YM

abbreviation:  District Dredge

YM

abbreviation:  Radar beacon

YMS

abbreviation:  District Motor Mine Sweeper

YMT

abbreviation:  District Tug, Motor

YN

abbreviation:  District Net Tender

YNG

abbreviation:  District Gate Tender

YNT

abbreviation:  District Net Tender (Tug Class)

YO

abbreviation:  District Barge, Fuel Oil (self-propelled)

YOG

abbreviation:  District Barge, Gasoline (self-propelled)

YOGN

abbreviation:  District Barge, Gasoline (non self-propelled)

Yoke

abbreviation:  "Y" in the phonetic alphabet

yoke

nautical:  A frame or bar having its center portion bored and keyed or otherwise constructed for attachment to the rudder stock. Steering leads to the steering gear are connected to each end of the yoke for the purpose of turning the rudder. Yoke lanyards are lines extending from the ends of the yoke to the stern sheets of a small boat for use in steering.

YON

abbreviation:  District Barge, Fuel Oil (non self-propelled)

YOS

abbreviation:  District Barge, Oil Storage

YP

abbreviation:  District Patrol Vessel

YPD

abbreviation:  District Floating Pile Driver

YPK

abbreviation:  District Barge, Pontoon Stowage

YR

abbreviation:  District Workshop, Floating

YRC

abbreviation:  District Chamber, Submarine Rescue

YRD(H)

abbreviation:  District Workshop, Floating, Drydock (Hull)

YRD(M)

abbreviation:  District Workshop, Floating, Drydock (Machinery)

YS

abbreviation:  District Barge, Stevadoring

YSD

abbreviation:  District Derrick, Seaplane Wrecking

YSP

abbreviation:  District Pontoon Salvage

YSR

abbreviation:  District Barge, Sludge Removal

YT

abbreviation:  Harbor Tug

YT

abbreviation:  Yukon Territory

YTB

abbreviation:  District Tug, Harbor, Big

YTL

abbreviation:  District Tug, Harbor, Little

YTM

abbreviation:  District Tug, Harbor, Medium

YTT

abbreviation:  District Barge, Torpedo Testing

YTX

abbreviation:  Planned District Craft

YW

abbreviation:  District Barge, Water (self-propelled)

YWN

abbreviation:  District Barge, Water (non self-propelled)

Z-Hour

abbreviation:  Hour set for attack

Z/F

abbreviation:  Zone of Fire (Army)

Z

abbreviation:  Administrative Aircraft (suffix to plane designation)

Z

abbreviation:  Impedance (radar)

Z

abbreviation:  Lighter-than-air aircraft (airship)

ZD

abbreviation:  Zone Description

Zebra

abbreviation:  "Z" in the phonetic alphabet, replacing the obsolete "Zed"

Zed

abbreviation:  "Z" in the phonetic alphabet, now obsolete and replaced by "Zebra"

ZedRon

abbreviation:  Blimp Squadron (later separated into Blimp-Ron and Blimp-Hedron)

Zeke

glossary:  Single-engine Mitsubishi A6M “Zero” fighter-interceptor.

ZF

abbreviation:  Free balloon

ZG

abbreviation:  Canal Zone to Guantanamo (routing designation)

ZK

abbreviation:  Barrage balloon

ZKN

abbreviation:  Training balloon

ZKO

abbreviation:  observation balloon

ZMC

abbreviation:  Experimental metal-clad airship

ZN

abbreviation:  First two letters in the Navy aircraft designation, indicating an airship (non-rigid)

ZNH

abbreviation:  Navy airship, air-sea rescue

ZNJ

abbreviation:  Navy airship, utility

ZNN-G

abbreviation:  Two-engine Navy training and utility airship manufactured by Goodyear

ZNN-K

abbreviation:  Two-engine Navy training and utility airship manufactured by Goodyear

ZNN-L

abbreviation:  Two-engine Navy training airship, manufactured by Goodyear

ZNN

abbreviation:  Non-rigid training airship

ZNO

abbreviation:  Non-rigid observation airship

ZNP-K

abbreviation:  Two-engine Navy patrol and escort airship manufactured by Goodyear

ZNP-M

abbreviation:  Two-engine Navy patrol and escort airship manufactured by Goodyear

ZNP

abbreviation:  Non-rigid patrol airship

ZNS

abbreviation:  Non-rigid scouting airship

ZofC

abbreviation:  Zones of Communications

ZofI

abbreviation:  Zone of Interior (Army)

ZPG

abbreviation:  Airship Group

ZPRon

abbreviation:  Navy Patrol (lighter-than-air) Squadron

ZRN

abbreviation:  Rigid training airship

ZRP

abbreviation:  Rigid patrol airship

ZRS

abbreviation:  Rigid scouting airship

ZT

abbreviation:  Zone Time

ZTO

abbreviation:  Zone Transportation Office (Army)

ZutRon

abbreviation:  Airship Utility Squadron