Code Company Location Note
AE Aeronca Aircraft Corp. Ohio, Middleton or AS?
AG Air Glider, Inc. Ohio, Akron
BA Bell Aircraft Corp. Georgia, Atlanta
BB Babcock AIrcraft Florida, Deland
BC Bell Aerosystems Co. New York, Buffalo
BE Bell Aircraft Corp. New York, Buffalo
BF Bell Helicopter Corp. Texas, Forth Worth
BH Beech Aircraft Corp. Kansas, Wichita
BL Belianca Aircraft Corporation Delaware, New Castle
BN Boeing Co. Washington, Renton
BO Boeing Co. Washington, Seattle
BR Briegleb Sailplane California, Beverley Hills
BS Bowlus Sailplane California, San Francisco
BU Budd Manufacturing Pennsylvania, Philadelphia
BV Boeing Co. Pennsylvania, Morton Vertol division
BW Boeing Co. Kansas, Wichita Stearman Aircraft Division
CA Chase Aircraft Co., Inc. New Jersey, West Trenton
CE Cessna Aircraft Co. Kansas, Wichita
CF Convair Texas, Forth Worth
CH Christopher Aircraft Missouri, St. Louis
CK Curtiss-Wright Corp. Kentucky, Louisville
CL Culver Aircraft Kansas, Wichita
CM Commonwealth Aircraft Missouri, Kansas City
CO Convair California, San Diego
CR Cornelius Aircraft Ohio, Dayton
CS Curtiss-Wright Corp. Missouri, St. Louis
CU Curtiss-Wright Corp. New York, Buffalo
CV Chance Vought Aircraft Texas, Dallas Changed from VO
DC Douglas Aircraft Co. Illinois, Chicago
DE Douglas Aircraft Co. California, El Segundo
DH DeHavilland Aircraft of Canada Canada, Toronto
DK Douglas Aircraft Co. Oklahoma, Oklahoma City
DL Douglas Aircraft Co., Inc. California, Long Beach
DM Doman Helicopter, Inc. Connecticut, Danbury
DO Douglas Aircraft Co., Inc. California, Santa Monica
DT Douglas Aircraft Co., Inc. Oklahoma, Tulsa
FA Fairchild Aircraft Division Maryland, Hagerstown
FB The Fairchild Engine & Airplane Co. North Carolina, Burlington
FE Fleet Aviation Ltd. Canada, Ontario, Fort Erie
FL Fleetwings, Inc. Pennsylvania, Bristol
FO Ford Motor Co. Michigan, Willow Run
FR Frankfort Sailplane Illinois, Joliet
FT Fletcher Aircraft Corp. California, Pasadena
GA G&A Aircraft Co. Pennsylvania, Willow Grove
GC General Motors (Fisher) Ohio, Cleveland
GE General Aircraft New York, Astoria
GM General Motors (Fisher) Michigan, Detroit
GN Gibson Refrigerator Michigan, Greenville
GO Goodyear Aircraft Co. Ohio, Akron
GR Grumman Aircraft Corp. New York, Bethpage
GT Grand Central Aircraft Co. Arizona, Tuscon
GY Gyrodyne Co. of America, Inc. New York, St. James
HE Helio Aircraft Corp. Massachusetts, Norwood
HI Hiller Helicopter Corp. California, Palo Alto
HO Howard Aircraft Corp. Illinois, Chicago
HU Hughes Tool Co. California, San Diego
IN Interstate Aircraft and Engineering California, El Segundo
KA Kaman Helicopter Corp. Connecticut, Windsor Locks
KE Kellet Autogyro Corp. Pennsylvania, Philadelphia
LK Laister-Kauffman Aircraft Co. Missouri, St. Louis
LM Lockheed Aircraft Corp. Georgia, Marietta
LO Lockheed Aircraft Corp. California, Burbank
MA The Martin Corp. Maryland, Baltimore
MC McDonnell Aircraft Corp. Missouri, St. Louis
MD The Martin Corp. Colorado, Denver
MF The Martin Corp. Florida, Orlando
MO The Glenn L. Martin Co. Nebraska, Omaha
NA North American Aviation, Inc. California, Inglewood
NC North American Aviation, Inc. Missouri, Kansas City
ND Noorduyn Aviation Co., Ltd. Canada, Montreal
NH North American Aviation, Inc. Ohio, Columbus
NI North American Aviation, Inc. California, Downey
NK Nash-Kelvinator Corp. Michigan, Detroit
NO Northrop Aircraft, Inc. California, Hawthorne
NT North American Aviation, Inc. Texas, Dallas
NW Northwestern Aeronautical Corp. Minnesota, St. Paul
PA Piper Aircraft Corp. Pennsylvania, Lockhaven
PI Piasecki Aircraft Corp. Pennsylvania, Philadelphia
PL Platt-LePage Aircraft Co. Pennsylvania, Eddystone
PR Pratt, Read & Co. Pennsylvania, Eddystone
RA Republic Aviation Corp. Indiana, Evansville
RD Read-York, Inc. Wisconsin, Kenosha
RE Republic Aviation Corp. New York, Farmingdale
RI Ridgefield Manufacturing Co. New Jersey, Ridgeville
RO Robertson Aircraft Missouri, St. Louis
RP The Radioplane Co. California, Van Nuys
RY Ryan Aeronautical Co. California, San Diego
SI Sikorsky Aircraft Division Connecticut, Stratford
SL St. Louis Aircraft Missouri, St. Louis
SP Spartan Aircraft Oklahoma, Tulsa
SW Schweizer Aircraft Corp. New York, Elmira
TA Taylorcraft Aviation Corp. Ohio, Alliance
TI Timm Aircraft California, Van Nuys
UN Universal Molded Products Virginia, Bristol
VE Lockheed Aircraft Corp. California, Burbank Vega division
VI Canadian Vickers, Ltd. Canada, Quebec, Montreal
VN Vultee AIrcraft Corp. Tennessee, Nashville
VO Chance Vought Aircraft Texas, Dallas Later changed to CV
VU Vultee AIrcraft Corp. California, Downey
VW Consolidated Vultee Corp. Michigan, Wayne Stinson Aircraft Division
WA Ward Furniture Co. Arkansas, Fort Smith
WI Wichita Engineering Co. Texas, Wichita Falls
WO Waco Aircraft Co. Ohio, Troy
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