| Code name | Manufacturer | Aircraft | Notes |
| AA | Douglas | A-24/F-24 Banshee | |
| AB | Curtiss | A-25 Shrike | |
| AC | Douglas | A-26 Invader | recoded BC in 1948 |
| AD | Vultee | A-31 Vengeance | |
| AE | Convair | XA-41 | |
| BA | Boeing | B-17 Flying Fortress | |
| BA | Martin | B-57 Canberra | |
| BB | Douglas | XB-19 | |
| BB | Douglas | B-66 Destroyer | |
| BC | Consolidated | B-24 Liberator | |
| BC | Douglas | B-26 Invader | originally AC |
| BD | North American | B-25 Mitchell | |
| BE | North American | B-45 Tornado | recoded BH in 1948 |
| BF | Boeing | B-29 Superfortress | |
| BG | Consolidated | B-32 Dominator | |
| BG | Northrop | XB-35 | |
| BH | Lockheed | B-37 Ventura | |
| BH | North American | B-45 Tornado | originally BE |
| BJ | Boeing | XB-39 Superfortress | |
| BK | Douglas | XB-42 Mixmaster | |
| BK | Boeing | B-50 Superfortress | |
| BL | Boeing | XB-44 Superfortress | |
| BM | Convair | B-36 Peacemaker | |
| CA | Beechcraft | CQ-3 Expeditor | |
| CA | Douglas | C-124 Globemaster II | |
| CB | Beechcraft | UC-43 Traveler | |
| CC | Beechcraft | C-45 Expeditor | |
| CD | Curtiss | C-46 Commando | |
| CE | Douglas | C-47 Skytrain | |
| CF | Douglas | C-48 | |
| CG | Douglas | C-49 | |
| CH | Douglas | C-53 Skytrooper | |
| CJ | Douglas | C-54 Skymaster | |
| CK | Lockheed | C-60 Lodestar | |
| CL | Noorduyn | UC-64 Norseman | |
| CM | Lockheed | C-69 Constellation | |
| CN | Douglas | C-74 Globemaster | |
| CP | Cessna | UC-78 Bobcat | |
| CP | Convair | C-131 Samaritan | |
| CQ | Fairchild | C-82 Packet | |
| CQ | Fairchild | C-119 Flying Boxcar | |
| CR | Consolidated | C-87 Liberator Express | |
| CS | Boeing | C-97 Stratofreighter/KC-97 Stratofreighter | |
| CT | Convair | XC-99 | |
| CU | Douglas | C-117 Skytrooper | |
| CV | Douglas | C-118 Liftmaster | |
| CW | Lockheed | C-121 Constellation | |
| CY | Chase | YC-122 Avitruc | |
| CZ | Chase | C-123 Provider | |
| CZ | Fairchild | C-123 Provider | |
| FA | Beechcraft | F-2 Expeditor | cancelled 1948 |
| FB | Lockheed | F-5 Lightning | cancelled 1948 |
| FC | North American | F-6 Mustang | cancelled 1948, to FF |
| FD | Consolidated | F-7 Liberator | cancelled 1948 |
| FE | Boeing | F-9 Flying Fortress | cancelled 1948, to BA |
| FF | North American | F-10 Mitchell | cancelled 1948, to BD |
| FG | Boeing | F-13 Superfortress | cancelled 1948, to BF |
| FH | Northrop | F-15 Reporter | cancelled 1948, to FK |
| F | Northrop | N-156F | |
| FA | Lockheed | F-38 Lightning | previously PA |
| FA | Lockheed | F-94 Starfire | |
| FA | Northrop | F-5 Freedom Fighter | |
| FB | Bell | F-39 Airacobra | previously PB |
| FB | McDonnell | F-101 Voodoo | |
| FC | Curtiss | F-40 Warhawk | previously PC |
| FC | Convair | F-102 Delta Dagger | |
| FD | Republic | XF-103 | |
| FE | Republic | F-47 Thunderbolt | previously PE |
| FE | Convair | F-106 Delta Dart | |
| FF | North American | F-51 Mustang | previously PF |
| FG | Lockheed | F-104 Starfighter | |
| FH | Republic | F-105 Thunderchief | |
| FJ | Bell | F-59 Airacomet | previously PJ |
| FJ | McDonnell | F-110 Spectre | |
| FK | Northrop | F-61 Black Widow | previously PK |
| FL | Bell | F-63 Kingcobra | previously PL |
| FN | Lockheed | F-80 Shooting Star | previously PL, recoded FT |
| FP | Convair | XF-81 | previously PP |
| FQ | North American | F-82 Twin Mustang | previously PQ |
| FR | Bell | XF-83 | previously PR |
| FS | Republic | F-84 Thunderjet | previously PS |
| FT | Lockheed | F-80 Shooting Star | previously PN, FN |
| QFT | Lockheed | QF-80 Shooting Star | |
| FU | North American | F-86 Sabre | previously PU |
| FV | Northrop | Northrop F-89 Scorpion | |
| FW | North American | F-100 Super Sabre | |
| FX | Lockheed | YF-12 Blackbird | Unofficial? |
| FY | North American | YF-93 | |
| FY | North American | YF-95 | recoded FU |
| GA | Waco | PG-2 | |
| GB | Waco | PG-3 | |
| GC | Waco | CG-4 | |
| GD | Laister-Kauffman | XCG-10 Trojan Horse | |
| GE | Waco | CG-13 | |
| GF | Chase | YCG-14 | |
| GG | Waco | CG-15 | |
| GH | Chase | XCG-18 | |
| GJ | Chase | XCG-20 | |
| JT | Cessna | YAT-37D | |
| LA | Taylorcraft | L-2 Grasshopper | |
| LA | Piper | L-4 Grasshopper | originally LC |
| LB | Aeronca | L-3 Grasshopper | |
| LB | Stinson | L-5 Sentinel | originally LD |
| LC | Piper | L-4 Grasshopper | recoded LA |
| LC | Aeronca | L-16 | originally LH |
| LB | Stinson | L-5 Sentinel | recoded LB |
| LD | Ryan | L-17B/U-18B Navion | See LJ for North American L-17A/C, U-18A/C |
| LE | Interstate | L-6 Cadet | |
| LE | Boeing | L-15 Scout | |
| LE | Piper | L-18 Super Cub | |
| LF | Piper | L-14 | |
| LF | Cessna | L-19 Bird Dog | |
| LG | Convair | L-13 Grasshopper | |
| LG | de Havilland Canada | L-20 Beaver | |
| LH | Aeronca | L-16 | recoded LC |
| LH | Piper | L-21 Super Cub | |
| LJ | North American | L-17A/C, U-18A/C Navion | See LD for Ryan L-17B, U-18B |
| LJ | Beechcraft | L-23 Seminole | |
| LK | Aero Commander | L-26 | |
| OA | Grumman | OA-9 Goose | |
| OB | Consolidated | OA-10 Catalina | |
| OC | North American | O-47 | |
| OD | Kellett | YO-60 | |
| OE | Boeing | PB2B-1 Catalina | |
| PA | Lockheed | P-38 Lightning | recoded FA in 1948 |
| PB | Bell | P-39 Airacobra | recoded FB in 1948 |
| PC | Curtiss | P-40 Warhawk | recoded FC in 1948 |
| PD | Curtiss | XP-42 | |
| PE | Republic | P-47 Thunderbolt | recoded FE in 1948 |
| PF | North American | P-51 Mustang | recoded FF in 1948 |
| PG | Curtiss | XP-55 Ascender | |
| PH | Lockheed | XP-58 Chain Lightning | |
| PJ | Bell | P-59 Airacomet | recoded FJ in 1948 |
| PK | Northrop | P-61 Black Widow | recoded FK in 1948 |
| PL | Bell | P-63 Kingcobra | recoded FL in 1948 |
| PM | Fisher | P-75 Eagle | |
| PN | Lockheed | P-80 Shooting Star | recoded FT in 1948 |
| PP | Convair | XP-81 | recoded FP in 1948 |
| PQ | North American | P-82 Twin Mustang | recoded FQ in 1948 |
| PR | Bell | XP-83 | recoded FR in 1948 |
| PS | Republic | P-84 Thunderjet | recoded FS in 1948 |
| PU | North American | P-86 Sabre | recoded FU in 1948 |
| QF | Piasecki | H-21 Workhorse | |
| QK | Culver | Q-14 Cadet | |
| RF | North American | RF-51 Mustang | |
| TA | North American | AT-6 Texan | |
| LTA | North American | LT-6G Texan | |
| TB | Beechcraft | AT-7 Navigator | |
| TC | Beechcraft | AT-11 Kansan | |
| TC | Mikoyan-Gurevich | MiG-15 | |
| TC | Convair | TF-102 Delta Dagger | |
| TD | Fairchild | AT-21 Gunner | |
| TD | Beechcraft | T-34 Mentor | |
| BTE | Vultee | BT-13 Valiant | |
| TE | Cessna | T-37 Tweet | |
| PTF | Boeing | PT-13 Kaydet | |
| TF | North American | TF-51 Mustang | |
| TF | Northrop | T-38 Talon | |
| TG | Boeing | PT-17 Kaydet | |
| TG | Lockheed | TF-104 Starfighter | |
| TG | North American | T-39 Sabreliner | |
| TH | Fairchild | PT-19 | |
| TJ | Culver | PQ-8 Cadet | |
| TK | Culver | PQ-14 Cadet | |
| TL | North American | T-28 Trojan | |
| TP | Convair | T-29 Flying Classroom | |
| TQ | Fairchild | T-31 | |
| TR | Lockheed | T-33 Shooting Star | |
| UG | de Havilland Canada | U-6 Beaver | |
| UH | Piper | U-7 Super Cub | |
| UK | Aero Commander | U-4/U-9 | |
| YF | North American | YF-93 | |
| YT | Cessna | YAT-37D | |