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Glossary of Terms

 

1/27

A notation used by armies to denote the battalion number and regiment number. For instance, this notation reflects the 1st Battalion of the 27th Infantry Regiment

A.A.F.

United States Army Air Force

AA

Antiaircraft (also given the slang expression “ack-ack”)

Ace

A combat pilot who had shot down at least five enemy aircraft.

Angels 10

Directions given by flight directors to indicate planes flying at 10,000 feet (or any altitude in multiples of 1,000 feet.)

ANZAC

Australia-New Zealand Area Command

APD

Destroyer Transport

AK

Cargo ship

Arresting Gear

An aircraft carrier’s mechanism that decelerates a landing plane’s forward speed

ATIS

Allied Translator and Interpreter Section, General MacArthur’s command

BAR

Browning Automatic Rifle

Barbette

Large steel cylinder that supports a ship’s gun turret

BB

Battleship (such as BB-56, USS Washington)

Beam

Ship’s side

Black Gang

Part of a ship’s crew stationed in the engine room

Black Shoe Navy

Expression used in the U. S. navy to designate sailors who served on surface ships and a term of disdain used by naval aviators.  (See also Brown Shoe Navy)

Blip

A bright dot displayed on a radar scope

Bogey

Term used by the Americans to indicate a radar contact of unknown origin

BOLERO

Allied code name given in 1942 to the operation of building up forces for a subsequent cross-English channel invasion

Brown Shoe Navy

Expression used in the U. S. Navy to designate naval aviators. (See also Black Shoe Navy)

BUDOCKS

Abbreviation for U. S. Navy’s Bureau of Yards and Docks

BUORD

Abbreviation the U. S. Navy’s Bureau of Ordinance located at the main Navy Building on Constitution Avenue in Washington, D.C. and responsible for all armaments aboard all American ships and naval aircraft

BUSHIPS

Bureau of Ships

BUTTON

Code name for the American Air Base at Espiritu Santo

Buster

Fighter director term, to proceed at best sustained speed

CA

Heavy Cruiser (such as CA-26, USS Northampton)

CACTUS

Code name for Henderson Field

CAG

Carrier Air Group. Also used to designate the commander of a carrier’s Air Group.

CAP

Combat Air Patrol

Cardiv

Carrier Division

C. in C.

Commander in Chief

Charthouse

Room on board a ship where maps and navigational charts are stored

Check fire

A command used by gun crews to cease firing their guns

Chutai

Japanese word for a group of six to nine aircraft

C.I.C.

Combat Information Center – a place onboard a ship in which all information concerning a tactical situation is collected, analyzed, and disseminated to naval commanders to aid them in making decisions. This center was developed in the latter stages of World War II as naval battles became more complex and fast-moving.

CINCLANT

Commander in Chief, United States Atlantic Fleet

CINCPAC

Commander in Chief, United States Pacific Fleet

CINCPOA

Commander in Chief, Pacific Ocean Areas

CINCSWPA

Commander in chief, Southwest Pacific Area

CINCUS

Commander in Chief, United States Fleet (sometimes abbreviated as CinCUS)

CL

Light Cruiser (such as CL-47, USS Boise)

C.N.O.

Chief of Naval Operations

C.O.

Commanding Officer

COM

as prefix means Commander.
  Examples:
     COMAIRSOPAC – Commander Aircraft South Pacific
     COMCRUDIV – Commander Cruiser Division
     COMINCH – Commander in Chief United States Fleet
     COMSOPAC – Commander South Pacific Force and Area
     COMAIRPAC - Commander Air Forces, South Pacific

Conn

Term used to refer to commanding the steering and speed of a ship

CTF

Commander Task Force

CTG

Commander Task Group

CV

Fleet Carrier (such as CV-6, USS Enterprise)

CVL

Light Carrier (such as CVL-22 (USS Independence)

CVE

Escort Carrier (such as CVE-55 (USS Casablanca)

CXAM

Type of radar developed and installed on U.S. warships in 1940 that was in wide use on American naval vessels during World War II

DD

Destroyer (such as DD-448, USS La Vallette)

DMS

Destroyer-Minesweeper (such as DMS-29, USS Butler [ex DD-636])

DESDIV

Destroyer Division

DESRON

Destroyer Squadron

DOVETAIL

Code name for the Allied rehearsal conducted in the Fiji Islands for the Guadalcanal invasion

DSM

Distinguished Service Medal

DUKW

Pronounced “Duck” were amphibious trucks that could be loaded while on a ship and then driven through the water onto the shore.

ETO

European Theater of Operations

FAB

Field Artillery Battalion

FDO

Fighter Director Officer (Directs aircraft to ground and air targets)

FC Radar

A generic term use to designate Fire Control radar used to direct the fire of the ship's guns.

FD Radar

Fire Direction Radar – used by warships to detect potential targets and direct a ship’s gunfire

Fighter One

Additional fighter landing strip at CACTUS

Fighter Two

Second fighter landing strip at CACTUS

Fish

The term used to refer to torpedoes.

Forecastle

The forward area of a ship from the bow to the bridge

FRUPac

Fleet Radio Unit - Pacific

G

A generic label the American Army used for staff positions in large units such as at the division or higher levels. These designations had sublevels:
   
G-1      Personnel
     G-2      Intelligence
    G-3      Operations
    G-4      Supply and evacuation
The staff designations below the division level carried the prefix S.

General Quarters

Alarm sounded that orders a ship’s crew to their battle stations

GMT

Greenwich Mean Time

H.M.A.S.

His Majesty’s Australian Ship

H.M.N.Z.S.

His Majesty’s New Zealand Ship

IAP

Inner Air Patrol

ICPOA

Intelligence Center, Pacific Ocean Area

IGHQ

Imperial General Headquarters (Japanese)

IFF

Identification, Friend or Foe (an American radio device or radar identification system)

JANAC

Joint Army-Navy Assessment Committee

JCS

Joint Chiefs of Staff

JICPOA

Joint Intelligence Center, Pacific Ocean Center

JNAF

Japanese Naval Air Force

Kido Butai

Japanese name for the Japanese carrier fleet

LCT

Landing craft tank (such as LCT-1 through LCT-500)

LST

Landing Ship Tank (such as LST 722, USS Dodge County)

LSO

Landing Signal Officer - person in charge of landing carrier-based aircraft on the ship’s flight deck.

MAG

Marine Air Group

MAW

Marine Air Wing. The First MAW commanded the American land based airpower on Guadalcanal. The 2nd relieved them on December 26.

MIA

Missing in Action (a designation used to list combat casualties when the fate of the person in question could not be confirmed. Sometimes a person listed MIA returned. When they did not return, they were presumed and later listed as dead.)

MTB

Motor torpedo boat (such as PT-109)

Knots

1.15 miles per hour

OOD

Officer of the Deck – Officer placed in temporary command and responsible for a ship’s maneuvers when the ship’s captain is not on deck.

O.N.I.

Office of Naval Intelligence

Op

Operation

OTC

Officer in Tactical Command – a practice used by navies that gives the most senior officer in command when more than one force joins another.

Pestilence

Code name for the entire American offensive operation in the South Pacific.

Port

Nautical term for the left side of a ship

POW

Prisoner of war

PPI

Plan Position Indicator, the display commonly associated with radar today, in which a number of circles set at certain ranges with the radar-carrying ship in the center gave the radar observer a clear view of the area around him. The PPI made navigation, position-holding, and threat evaluation much easier.

PT

Motor torpedo boat (see also MTB)

R4D

Navy version of the famous two-engine Douglas C-47 (DC-3) transport aircraft

R.A.A.F.

Royal Australian Air Force

Radar

RAdio Detection And Ranging

RAN

Royal Australian Navy

RANVR

Royal Australian Navy Volunteer Reserve

RBA

Rescue Breathing Apparatus – used by US Navy damage control parties when air that cannot be breathed safely may be present

RCT

Regimental Combat Team

Reciprocal Course

A ship’s course that is 180º opposite to another ship’s course

RN

Royal Navy

RNZAF

Royal New Zealand Air Force

SC Radar

Type of radar installed on American naval vessels to detect approaching aircraft

SCAP

Screen Combat Air Patrol

SCR Radar

Latest radar installed on Guadalcanal in early 1943

SEABEES

American Naval Construction Battalions

SG Radar

Another more advanced type of radar installed on American naval vessels to detect approaching ships

Shoestring

Nickname for Guadalcanal invasion (Operation Watchtower)

Shotai

The Japanese word for a collection of two to four planes – usually three

SNLF

Special Naval Landing Force (Japanese)

Sonar

(SOund Navigation And Ranging) Echo-ranging sound gear

SOPAC

South Pacific

Starboard

Nautical term for the right side of a ship

Station Hypo

Code breaking operation reporting to CINCPAC at Pearl Harbor

STO

Call letters for Australian coastwatcher Paul Mason

TBS

Talk Between Ships (Voice radio)

ULTRA

American/British code-breaking activities

USA

United States Army

USAAF

United States Army Air Force

USMC

United States Marine Corps

USMCR

United States Marine Corps Reserve

USSBS

United States Strategic Bombing Survey

Very gun

A gun that shoots flares

Watchtower

Code name of the operation for the invasion of Guadalcanal and Tulagi

YP

Yard Patrol Boat (such as YP 676)

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