Abbreviations

AA

antiair

AP

armor piercing

ASV

air surface vessel (radar)

ASW

antisubmarine warfare

BR

British

CDN

Canadian

D1

superficial or splinter damage

D2

moderate damage with combat or maneuvering ability not significantly impaired

D3

significant damage with combat or maneuvering ability impaired

D4

major damage with combat or maneuvering ability eliminated

DP

dual purpose

FL

full load (displacement)

FS

flagship

GE

German

GK

Greek

GRT

gross registered tons

HA

high angle

HE

high explosive (or high effect)

HMSO

Her Majesty’s Stationery Office

IFF

Identification Friend or Foe

MHQ

Military History Quarterly

NO

Norwegian

NZ

New Zealand

OSS

(U.S.) Office of Strategic Services

PO

Polish

RCN

Royal Canadian Navy

RN

Royal Navy

RO

Rumanian

RSI

Repubblica Sociale Italiana (Italian Social Republic)

SAP

semi-armor-piercing

SB

shore battery

SO

Soviet

US

United States

USAAF

United States Army Air Force

USMM

Ufficio Storico della Marina Militare

USN

U.S. Navy

X MAS

Tenth Light Flotilla, or Decima Flottiglia MAS

Ship Types

AMC

armed merchant cruiser

BB

battleship

BC

battle cruiser

BM

monitor

CA

heavy cruiser

CB

coastal battleship (obsolete)

CL

light cruiser

CLA

antiair light cruiser

CV

aircraft carrier

CVE

escort carrier

DD

destroyer

DC

corvette/sloop

DF

frigate

DE

destroyer escort

DL

large destroyer (French contre-torpilleur)

DS

sloop

GB

gunboat

LST

landing ship, tank

MAS

motoscafi armati siluranti or motoscafi anti sommergibili (Italian motor torpedo boat)

MFP

Marinefährprahm (German armed barge or “F” lighter)

ML

minelayer or motor launch

MMS

motor minesweeper

MS

minesweeper

MS

motosiluranti (large Italian motor torpedo boat)

MTB

motor torpedo boat

MTM

motoscafo turismo modificato (Italian explosive motorboat)

MZ

motozattere da sbarco (Italian armed barge or “F” lighter)

OBB

old battleship

PB

patrol boat

PC

submarine chaser (USN)

PT

patrol torpedo boat (USN)

R-boat

raumboote (German motor minesweeper)

S-boat

schnellboote (German motor torpedo boat or “E” boat)

SC

submarine chaser

SS

submarine

TA

torpedoboote auslandisch or foreign torpedo boat

TB

torpedo boat

UJ-boat

unterseebootsjäger (German submarine chaser)

VAS

vedette antisommergibili (Italian submarine chaser)

V-boat

vorpostenboote (German patrol boat)