Recognition Pictorial Manual, Army FM 30-30, Navy BuAer 3, from April, 1943, along with representative photos and three-view drawings of most warplanes active at the time, includes tables of foreign manufacturers, Army and Navy letter type designators, and US types.

Manufacturers of Foreign Aircraft

Common-usage nameCorporate name
British
Airspeed  …  Airspeed, Ltd
Armstrong Whitworth  …  Sir W G Armstrong Whitworth Aircraft, Ltd
Blackburn  …  The Blackburn Aircraft, Ltd
Boulton Paul  …  Boulton Paul Aircraft, Ltd
Bristol  …  The Bristol Aeroplane Co, Ltd
De Havilland  …  The de Havilland Aircraft Co, Ltd
Fairey  …  The Fairey Aviation Co, Ltd
Folland  …  Folland Aircraft, Ltd
G A  …  General Aircraft, Ltd
Gloster  …  The Gloster Aircraft Co, Ltd
Handley Page  …  Handley Page, Ltd
Hawker  …  Hawker Aircraft, Ltd
Miles  …  Phillips and Powis Aircraft, Ltd
Percival  …  Percival Aircraft, Ltd
Avro  …  A V Roe and Co, Ltd
Saro  …  Saunders-Roe, Ltd
Supermarine  …  Supermarine Aviation Works, Div of Vickers-Armstrongs, Ltd
Vickers  …  Vickers-Armstrongs, Ltd
Westland  …  Westland Aircraft, Ltd
Wackett  …  Commonwealth Aircraft Corporation Pty, Ltd (Australia)
Fleet  …  Fleet Aircraft, Ltd (Canada)
Noorduyn  …  Noorduyn Aviation, Ltd (Canada)
USSR
State aircraft factories, grouped under control of the
Central Directorate of Aeronautical Industry (Glaviavioprom)
Japan
Aichi  …  Aichi Watch and Electric Machinery Co, Ltd
Kawanishi  …  Kawanishi Aircraft Co, Ltd
Kawasaki  …  Kawasaki Aircraft Engineering Co, Ltd
Mitsubishi  …  Mitsubishi Heavy Industries, Ltd
Nakajima  …  Nakajima Aircraft Co, Ltd
Sasebo  …  Sasebo Naval Arsenal
Germany
Arado  …  Arado Flugzeugwerke, GmbH
  …  (Arado Aircraft Co, Ltd)
Blohm and Voss (or Ha)  …  Blohm und Voss
Bücker  …  Bücker Flugzeugbau, GmbH
  …  (Bücker Aircraft Co, Ltd)
Dornier  …  Dornier-Werke, GmbH
  …  (Dornier Industries Co, Ltd)
Fieseler  …  Gerhard Fieseler Werke, GmbH
  …  (Gerhard Fieseler Industries Co, Ltd)
Focke-Wulf  …  Focke-Wulf Flugzeugbau, GmbH
  …  Focke-Wulf Aircraft Co, Ltd)
Gotha  …  Gothaer Waggonfabrik, AG
  …  (Gotha Vehicle Manufacturing Corp)
Heinkel  …  Ernst Heinkel Flugzeugwerke, GmbH
  …  (Ernst Heinkel Aircraft Co, Ltd)
Henschel  …  Henschel Flugzeugwerke, AG
  …  (Henschel Aircraft Corp)
Junkers  …  Junkers Flugzeug und Motorenwerke, AG
  …  (Junkers Aircraft and Engine Corp)
Messerschmitt  …  Messerschmitt, AG
  …  (Messerschmitt Corp)
Italy
Breda  …  Societa Italiana Ernesto Breda
  …  (Ernest Breda Co of Italy)
Cant  …  Cantieri Riuniti dell' Adriatico
  …  (Adriatic United Shipyards)
Caproni  …  Aeroplani Caproni SA
  …  (Caproni Airplanes Co, Ltd
Caproni Vizzola  …  Caproni Vizzola SA (Caproni)
  …  (Caproni Vizzola Co, Ltd (Caproni))
Fiat  …  Aeronautica d'Italia SA (Fiat)
  …  (Italian Aircraft Co, Ltd (Fiat))
Macchi  …  Aeroanutica Macchi SA
  …  Macchi Aircraft Co, Ltd)
Meridionali  …  SA Industrie Meccaniche & Aeronautiche Meridionali (Breda)
  …  (Southern Manufacturing and Aircraft Co, Ltd (Breda))
Piaggio  …  SA Piaggio & Co
  …  (Piaggio Co, Ltd)
Reggiane  …  Officine Meccaniche "Reffiane" SA (Caproni)
  …  Reggio Manufacturing Works, Ltd (Caproni))
SAI  …  Societa Italiana Ing A Ambrosini & Co
  …  (A Ambrosini Aeronautical Engineering Co of Italy)
Savoia-Marchetti  …  Societa Italiana Aeroplani Idrovolanti "Savoia-Marchetti"
  …  ("Savoia-Marchetti" Airplane and Seaplane Co of Italy)
US Type Designators
DesignatorAircraft type
Army
  The designation of Army aircraft is composed of one or two letters designating the class of aircraft, a number indicating the model and a letter to designate the modification of the model. B-17F means that the aircraft is a bomber (B), that it is the 17th bomber model accepted by the Army, and that it is the 6th modification of the B-17 model. Unlike US Navy aircraft designations, Army designations give no information as to identity of the manufacturer.
OA  …  Amphibian
F  …  Army Reconnaissance (Photographic)
A  …  Bombardment (Light)
B  …  Bombardment (Medium and Heavy)
P  …  Fighter
L  …  Liaison
O  …  Observation
AT  …  Training (Advanced)
BT  …  Training (Basic)
PT  …  Training (Primary)
C  …  Transport (Cargo and Personnel)
UC  …  Utility Transport (less than 9 places or less than 1,400 lbs of cargo)
CG  …  Glider (Troop)
TG  …  Glider (Training)
CQ  …  Target (Control)
OQ  …  Target (Aerial)
PQ  …  Target (Aerial)
Classifications are prefixed as follows:
R  …  Restricted Classification (Planes no longer considered as First Line aircraft)
X  …  Experimental Classification
Y  …  Service Test Classification
Z  …  Obsolete Classification
Navy
  The designation of Navy airplanes, airships, and gliders is composed of one or two letters designating the class of aircraft; a number indicating the model; a letter indicating the manufacturer; and a number to designate the modifications of the model. As and example, the first patrol bombing aeroplane to be produced by Consolidated Aircraft would be the PBY-1. The second patrol bombing aeroplane built by this company would be the PB2Y-1 and successive modifications to this aeroplane would be the PB2Y-2, PB2Y-3, etc. The prefix letter X is used for experimental aircraft and gliders.
H  …  Ambulance
B  …  Bombing
F  …  Fighting
O  …  Observation
P  …  Patrol
S  …  Scouting
T  …  Torpedo
OS  …  Observation-Scouting
N  …  Training
R  …  Transport (multi-engine)
G  …  Transport (single-engine)
J  …  Utility
BT  …  Bombing Torpedo
PB  …  Patrol-Bombing
SB  …  Scouting-Bombing
JR  …  Utility-Transport
L  …  Glider
ZN  …  Airship (nonrigid)
SO  …  Scouting-Observation
SN  …  Scout-Training
TB  …  Torpedo-Bombing
Navy Manufacturer's Letters
LetterManufacturer
A  Brewster Aeronautical Corp
  Allied Aviation Corp
B  Beech Aircraft Co
  Boeing Aircraft Co
  Budd Manufacturing Co
C  Curtiss Airplane Division (C-W Corp)
D  Douglas Aircraft Co, Inc
E  Bellanca Aircraft Corp
  Gould Aeronautical Corp
  Piper Aircraft Co
F  Grumman Aircraft Eng Corp
  Columbia Aircraft Corp
  Fairchild Aircraft Corp (Canada)
G  AGA Aviation Corp
  Goodyear Aircraft Corp
  Great Lakes Aircraft Co
H  Howard Aircraft Co
  Hall Aluminum Co
J  North American Aviation
K  Fairchild Aircraft Corp (US)
  Nash-Kelvinator Co
L  Bell Aircraft Corp
  Langley Aviation Corp
M  Glenn L Martin Co
  General Motors Corp, Eastern Aircraft Division
N  Naval Aircraft Factory
O  Lockheed Aircraft Corp
P  Spartan Aircraft Co
Q  Bristol Aeronautical Corp
R  Ryan Aeronautical Co
  Aeronca Aircraft Corp
S  Sikorsky Aircraft
  Stearman Aircraft (Division of Boeing Aircraft Co)
  Schweizer Aircraft
T  El Segundo Plant (Douglas Aircraft Co)
  Taylorcraft Aviation Corp
  Northrop Aircraft, Inc
  Timm Aircraft Corp
U  Chance Vought Aircraft (Div United Aircraft Corp)(formerly Vought-Sikorsky)
V  Vultee Aircraft Inc
  Vickers Ltd
  Vega Airplane Co
W  Canadian Car & Foundry
  Waco Aircraft Co
Y  Consolidated Aircraft Corp