List of Lockheed aircraft
This is a list of aircraft produced or proposed by the Lockheed Aircraft Corporation from its founding as the Lockheed Aircraft Company in 1926 to its merging with Martin Marietta to form the Lockheed Martin Corporation in 1995.
Ordered by model number, Lockheed gave most of its aircraft astronomical names, from the first Vega to the C-5 Galaxy. Aircraft models listed in italics and with higher numbers – 780 following 80 and preceding 81, for example – are variants or developments of the base model.
| Model | Name | First flight | Remarks |
| 1 | Vega | Six-passenger monoplane, original Vega model | |
| 2 | Vega | Upgraded Vega with 300 hp Wright J-6 Whirlwind | |
| 3 | Air Express | Modified Vega for Western Air Express | |
| 4 | Explorer | Low-wing aircraft designed for trans-pacific flight between the United States and Japan | |
| 5 | Vega | Modified Vega with Wasp radial engine | |
| 6 | Y1C-17 | "Speed Vega" derivative modified by the United States Army Air Corps | |
| 7 | Explorer Special | Modified Lockheed Explorer with wing dihedral | |
| 8 | Sirius | Single-engine, two-seat, long-range, high-performance aircraft | |
| 8A | Altair | Modified Sirius with a retractable undercarriage | |
| 8D | Altair | Upgraded Altair | |
| 9 | Orion | High speed wooden Six-passenger monoplane | |
| 10 | Electra | Twin-engine all-metal transport | |
| 11 | XFM-2 | Proposed heavy fighter | |
| 12 | Electra Junior|Electra Junior] | Six-passenger transport, scaled-down version of Model 10 | |
| 212 | L-212 | Bomber trainer version | |
| 14 | Super Electra | Passenger transport, scaled-up version of Model 10 | |
| 15 | PV-1 Ventura | Naval patrol bomber | |
| 16 | Unbuilt derivative of Lockheed Model 10 Electra | ||
| 18 | Lodestar | Passenger transport, stretched Model 14 | |
| 19 | Unbuilt fourteen-seat derivative of Model 14 | ||
| 20 | XP-58 Chain Lightning | Long-range interceptor version of the P-38 Lightning | |
| 21 | Ventura | Twin-engine World War II patrol bomber | |
| 22 | P-38 Lightning | Twin-engine World War II fighter | |
| 122 | P-38 Lightning | YP-38 through P-38D | |
| 222 | P-38 Lightning | P-38E through P-38H | |
| 322 | P-322 Lightning | Export variant, impressed into U.S. service at war's outbreak | |
| 422 | P-38 Lightning | P-38J through P-38M | |
| 522 | XP-49 | Advanced fighter prototype, based on P-38 | |
| 622 | XP-38A Lightning | Pressurized conversion of a P-38 | |
| 822 | P-38 Lightning | Navalized P-38 proposal | |
| 23 | XP-49 | Advanced P-38 derivative with pressurization and heavier weaponry | |
| 24 | Proposed naval version of P-38 Lightning | ||
| 26 | P-2 Neptune | Patrol bomber and anti-submarine warfare aircraft | |
| 27 | Proposed twin-engine canard transport | ||
| 29 | Proposed twin-engine bomber | ||
| 30 | Proposed twin-engine canard bomber | ||
| 31 | Proposed export version of Model 29 | ||
| 32 | Proposed reconnaissance version of Model 18 | ||
| 33 | Little Dipper | Single seat light aircraft | |
| 34 | Big Dipper | Twin seat light aircraft | |
| 35 | Military trainer design derived from the North American NA-35 | ||
| 37 | Ventura | Twin engine World War II patrol bomber | |
| 137 | B-34 | ||
| 437 | B-37 | ||
| 40 | Model 40 | Aerial target | |
| 41 | Aerial target proposal | ||
| 42 | Aerial target proposal | ||
| 44 | Excalibur | Unbuilt four-engine predecessor to Constellation | |
| 45 | Proposed radio control vehicle | ||
| 49 | Constellation | four-engine airliner | |
| 049 | Constellation | Original passenger version | |
| 149 | Constellation | Extra wing fuel tanks | |
| 249 | XB-30 | Redesignation of XB-30 ; cancelled in favor of the B-29 and B-32 | |
| 349 | C-69 Constellation | Unbuilt C-69B long range troop/cargo transport | |
| 449 | Constellation | Unknown airliner proposal | |
| 549 | C-69 Constellation | C-69C VIP transport | |
| 649 | Constellation | Improved passenger version | |
| 749 | Constellation | Longer range version of model 649 | |
| 849 | Constellation | Unbuilt turbo-compound R-3350 powered version of model 749 | |
| 949 | Constellation | Unbuilt passenger/cargo convertible version of model 849 | |
| 1049 | Super Constellation | Improved Constellation | |
| 1149 | Super Constellation | Unbuilt Allison turboprop powered version of the model 1049 | |
| 1249 | Super Constellation | Experimental turboprop military transport version | |
| 1449 | Super Constellation | Proposed stretched turbine powered version of model 1049 with larger wings | |
| 1549 | Super Constellation | Proposed further stretched version of model 1449 | |
| 1649 | Starliner | Final production version of the Constellation | |
| 50 | Proposed single-engine liaison aircraft | ||
| 51 | XB-30 | Proposed bomber version of Constellation, later redesignated model 249 | |
| 52 | Proposed single-seat fighter | ||
| 60 | Proposed twin-engine trainer | ||
| 61 | Proposed twin-engine trainer | ||
| 62 | Proposed twin-engine trainer | ||
| 75 | Saturn | Prototype small passenger airplane | |
| 80 | P-80 Shooting Star | United States' first operational jet fighter | |
| 080 | P-80 Shooting Star | YP-80A-P-80C | |
| 380 | P-80 Shooting Star | Unbuilt naval proposal | |
| 480 | P-80 Shooting Star | Unbuilt naval proposal | |
| 580 | T-33 Shooting Star | Trainer; originally designated TP-80C and TF-80C | |
| 680 | F-80D Shooting Star | Unbuilt version with engine upgrade | |
| 780 | F-94 Starfire | All-weather jet fighter | |
| 880 | F-94C Starfire | Redesigned tail & wing with rocket pods | |
| 980 | YF-94D Starfire | Unbuilt ground attack version | |
| 1080 | T2V-1 SeaStar | Naval trainer variant | |
| 81 | XFV-1 | Prototype tailsitter VTOL convoy protection fighter | |
| 82 | C-130 Hercules | Four-engine medium transport | |
| 182 | C-130 Hercules | All early models, including mission-specific variants | |
| 282 | C-130 Hercules | C-130B and later, including variants | |
| 382 | C-130 Hercules, L-100 | Later models, including variants and -30 stretch | |
| 83 | F-104 Starfighter | Supersonic Mach 2 interceptor | |
| 84 | W2V-1 | turboprop WV variant; contract cancelled | |
| 85 | P-3 Orion | military patrol aircraft developed from the Electra | |
| 520 | Proposed P-3 AEW&C variant | ||
| 87 | AH-56A Cheyenne | Cancelled attack helicopter | |
| 88 | L-188 Electra | Turboprop airliner | |
| 89 | R6O/R6V Constitution | Large transport prototype | |
| 189 | Civil version of Constitution | ||
| 389 | Unbuilt airliner version | ||
| 489 | Unbuilt airliner version | ||
| 92 | Proposed civil helicopter | ||
| 93 | L-1011 Tristar | Tri-engine, widebody airliner | |
| 99 | Cancelled USAF interceptor | ||
| 104 | L-104 | Temporary designation for redesigned Excalibur; later officially became Model 49 | |
| 105 | L-105 | Temporary designation for Excalibur | |
| 129 | Model X | 1941 high-altitude bomber project competing for Type Specification XC-124 against B-27 and B-28 | |
| 133 | L-133 | Cancelled jet fighter aircraft | |
| 136 | Enlarged Constellation project, 1944; evolved into the Model 89/R6V | ||
| 140 | XP-80 Shooting Star | Experimental jet fighter | |
| 141 | XP-80A Shooting Star | Experimental jet fighter | |
| 144 | Enlarged variant of Excalibur | ||
| 145 | Commercial transport proposal | ||
| 147 | Small commercial transport proposals | ||
| 151 | Unbuilt airliner project | ||
| 152 | Medium-size turboprop/turbojet commercial aircraft proposals | ||
| 153 | XP-90/XF-90 | Jet bomber escort prototype; cancelled in favor of the XF-88 | |
| 155 | Commercial jet-engined transport proposals | ||
| 168 | Heavy cargo/troop transport aircraft proposal | ||
| 170 | series of projects leading to TP-80/T-33A Shooting Star | ||
| 171 | X-7 | Unmanned test bed for ramjet engines and missile guidance | |
| 182 | Projected ASW version of Constitution | ||
| 183 | OS-113 interceptor fighter proposals; became XF3H-1 | ||
| 185 | Commercial aircraft proposals | ||
| 186 | Jet-engined commercial transport proposals | ||
| 187 | OS-111 long-range carrier-based bomber proposal; became XA3D-1 | ||
| 188 | Several projected modifications of the F-97 | ||
| 190 | USAF interceptor proposals | ||
| 191 | Strategic turbojet bomber system | ||
| 192 | OS-117 ASW aircraft proposals; became XS2F-1 | ||
| 193 | L-193 Constellation II | Jetliner/aerial tanker concept | |
| 195 | Nuclear engine-powered aircraft proposals | ||
| 197 | ASW helicopter proposals | ||
| 199 | VG-Starfire | All-weather trainer project | |
| 200 | Original proposal of XFV-1; later officially became Model 81 | ||
| 201 | Commercial transport aircraft proposals | ||
| 202 | Day fighter proposals | ||
| 203 | VTOL liaison aircraft proposal | ||
| 204 | Several project variants of F-94C | ||
| 206 | pre-Hercules development of L-168 with removable cargo pod | ||
| 207 | Commercial transport proposal | ||
| 208 | AMC XC-Heavy Transport and Parasite/Missile carrier aircraft proposal | ||
| 209 | Parasite bomber proposal | ||
| 210 | Ground attack fighter proposals | ||
| 212 | Nuclear engine-powered aircraft proposals | ||
| 227 | Series of pre-Starfighter projects | ||
| 242 | Series of pre-Starfighter projects | ||
| 245 | L-245 | Converted T-33 used by the company for development of the T2V-1 | |
| 246 | XF-104 | Interceptor prototype, led to the F-104 | |
| 288 | CL-288 | F-104 based interceptor concept with wing mounted engines | |
| 295 | CL-295 | Design studies for a 'tail-sitting' VTOL fighter | |
| 300 | C-141 Starlifter | Strategic airlifter | |
| 301 | L-301 | Proposed hypersonic research project; sometimes called X-24C | |
| 320 | CL-320 | Intermediate long-range high-speed interceptor project | |
| 325 | CL-325 | Reconnaissance aircraft project, predecessor to CL-400 Suntan design | |
| 329 | JetStar | Business jet | |
| 1329 | JetStar | Business jet | |
| 2329 | JetStar II | Business jet | |
| 330 | Projected T2V variant | ||
| 330 | XV-4/XV-10 Hummingbird | VTOL prototype | |
| 346 | CL-346 | Proposals for supersonic VTOL fighters, based on the F-104 | |
| 351 | U-2 | CL-282, high-altitude spyplane | |
| 352 | CL-352 | Carrier-based interceptor | |
| 379 | CL-379 | Tilt-wing research aircraft project | |
| 400 | CL-400 Suntan | Proposal for Mach 2.5 reconnaissance aircraft, liquid hydrogen fueled | |
| 400 | L-400 Twin Hercules | Proposed twin-engine version of C-130 | |
| 402 | CL-402 | Aermacchi AL-60 built under license | |
| 407 | CL-407 | Proposals for supersonic VTOL attack and reconnaissance aircraft | |
| 414 | Hudson | Bomber and reconnaissance aircraft | |
| 475 | CL-475 | Prototype helicopter | |
| 500 | C-5 Galaxy | Large jet transport | |
| 595 | XH-51A | Attack helicopter prototype | |
| 645 | F-22 Raptor | Air superiority stealth fighter | |
| 090P | Lockheed submission for the ATF Demonstration/Validation phase | ||
| 1132 | YF-22A Lightning II | Technology demonstrator | |
| 645 | F-22A Raptor | EMD and operational production aircraft | |
| 760 | CL-760 | Lockheed proposal for the LARA, competition won by the OV-10 Bronco | |
| 823 | CL-823 | Designs for SST | |
| 840 | AH-56 | Cancelled attack helicopter | |
| 901 | CL-901 | Converted F-104 for advanced air superiority | |
| 934 | CL-934 | Interceptor variant of the F-104 | |
| 977-16 | CL-977-16 | Composite helicopter | |
| 981 | CL-981 | Enlarged variant of the F-104, developed into the CL-1200 | |
| 984 | CL-984 | Strike variant of the F-104 | |
| 985 | CL-985B | development of the CL-984 for Belgium | |
| 995 | S-3A Viking | Twin-engine naval ASW aircraft | |
| 1026 | CL-1026 | designs for a commercial helicopter, using the rigid-rotor system from the Cheyenne. | |
| 1195 | CL-1195 | designs for fighter, proposal for the "Free World Fighter" program circa 1969 | |
| 1200 | CL-1200 Lancer | development of the F-104. became CL-1600 / X-27 | |
| 1201 | Lockheed CL-1201 | Design study for 6,000 ton nuclear powered transport | |
| 1800 | CL-1800 | helicopter project | |
| 2000 | L-2000 | Proposed supersonic transport | |
| 2016 | CL-2016 | Submission for the Advanced Tactical Fighter initial request for information | |
| XFM-2 | s | heavy fighter, bomber destroyer, cancelled | |
| YP-24 | fighter, ground-attack aircraft | ||
| XC-35 | experimental aircraft | ||
| X-27 Lancer | CL-1600, cancelled replacement of F-104 Starfighter; never flown | ||
| TR-1/U-2R | advanced U-2 | ||
| ER-2/U-2ER | NASA U-2 | ||
| A-12 | CIA supersonic spyplane | ||
| YF-12 Blackbird | supersonic interceptor prototype | ||
| SR-71 Blackbird | USAF supersonic spyplane | ||
| YO-3A Quiet Star | Reconnaissance | ||
| LASA-60 | Light Utility Sport Aircraft | ||
| X-26B | |||
| Have Blue | stealth technology testbed | ||
| F-117 Nighthawk | stealth attack aircraft | ||
| Flatbed | s | military transport aircraft project, cancelled | |
| P-7 | s | maritime-patrol aircraft project, cancelled |