List of military aircraft of the United States |
This list of military aircraft of the United States includes prototype, pre-production and operational types.
Prototypes are normally prefixed with "X" and often unnamed (note that these are not the same as the experimental X-planes, which are not generally expected to go into production), while pre-production
models are usually prefixed "Y".
USAF A-10 Thunderbolt
Attack
Old system, Army Air Corps/Army Air Force/Air Force
- A-2 - Douglas
- A-3/A-3/A-5/A-6 Falcon - Curtiss
- XA-7 - Fokker, losing competitor to A-8
- A-8 Shrike - Curtiss
- A-9 - Lockheed
- YA-10 - Curtiss
- A-11 -
Consolidated
- A-12 Shrike - Curtiss
- YA-13 - Northrop
- A-14 Shrike
- A-15 - Martin
- XA-16 - Northrop
- A-17 - Northrop
- A-18 Shrike
- A-19 - Vultee
- A-20 Havoc - Douglas
- A-21 - Stearman
- A-22 Maryland
- A-23 Baltimore
- A-24 Dauntless
- A-25 Shrike
- A-26 Invader - Douglas
- A-27 - North
American
- A-28/A-29 Hudson - Lockheed
- A-30 Baltimore
- A-32 - Brewster
- A-33 - Northrop
- A-34 - Brewster
- A-31/A-35 Vengeance -
Vultee
- A-36 Apache
- A-37
- A-38 Grizzly
- A-39 -
Kaiser-Fleetwings
- A-40 - Curtiss
- A-41 - Vultee
- A-42 Mixmaster
- A-43 Blackhawk
- A-44 -
Consolidated
- A-45 - Martin
Navy
Unified system, after 1962
A-1 Skyraider, USA 2003
Attack helicopters
- AH-1 Cobra - Bell
- AH-6J Little Bird - Boeing (McDonnell-Douglas) (Hughes)
- AH-56 Cheyenne
- AH-63 King Cobra
- AH-64 Apache - Boeing (McDonnell-Douglas) (Hughes)
- RAH-66 Comanche - Boeing-Sikorsky
Fixed wing gunships
P-3 Orion of the US navy
Anti Submarine Warfare (ASW)
Bomber
Old system, Army Air Corps/Army Air Force/Air Force
- XB-1 -
Huff-Daland
- B-2 Condor - Curtiss
- B-3 - Keystone
- B-4 - Keystone
- B-5 - Keystone
- B-6 - Keystone
- B-7 - Douglas
- B-8 - Fokker
- B-9 - Boeing
- B-10 - Martin, first mass-produced monoplane bomber
- B-11 - Douglas
- B-12 - Martin, B-10 variant, Wright engines
- B-13 proposed B-10 variant, cancelled
- B-14 - Martin, B-10 variant
- XB-15 - Boeing
- XB-16 proposed by Martin, cancelled before any built
- B-17 Flying Fortress - Boeing
- B-18 Bolo - Douglas, replacement for B-10
- XB-19 - Douglas
- Y1B-20 - improved XB-15, cancelled
- XB-21 - North
American
- XB-22 - improved B-18 proposed by Douglas, cancelled
- B-23 Dragon - Douglas,
replacement for B-18
- B-24 Liberator - Consolidated
- B-25 Mitchell - North American
- B-26 Marauder - Martin
- XB-27 - improved B-26 proposed by Martin, cancelled
- XB-28 Dragon - North
American
- B-29 Superfortress - Boeing, replacement for B-17 and
B-24
- XB-30 - Lockheed proposal
- XB-31 - Douglas proposal
USAF B-52
Navy
Unified system, after 1962
USAF B-2 Spirit
Cargo/Transport
Old system, Army Air Corps/Army Air Force/Air Force
- C-1 Millirole
- C-2 - Fokker
- C-3 - Ford
- C-4 - Ford
- C-5 - Fokker
- C-6 - Sikorsky
- C-7 - Fokker
- C-8 - Fairchild
- C-9 - Ford
- C-10 Robin
- C-11 Fleetster
- C-12 Vega
- C-14/C-15/C-16 - Fokker
- C-17 Super Vega
- C-18 Monomail
- C-19 Alpha
- C-20 - Fokker
- C-21 Dolphin
- C-22 Fleetster
- C-23 Altair
- C-24 Yic
- C-25 Altair
- C-26 Dolphin
- C-27 Airbus
- C-28 - Sikorsky
- C-29 Dolphin
- C-30 Condor
- Krei.-Rei. C-31
- C-32 - Douglas
- C-33 - Douglas
- C-34 - Douglas
- XC-35 Electra - Lockheed
- C-36 Electra - Lockheed
- C-37 Electra - Lockheed
- C-38 - Douglas
- C-39 - Douglas
- C-40 Electra
- C-41 - Douglas
- C-42 - Douglas
- C-43 Traveller
- C-44 -
Messerschmitt
- C-46 Commando - Curtiss
- C-47 Skytrooper - Douglas DC-3
- C-48 Skytrooper - Douglas DC-3
- C-49 Skytrooper - Douglas DC-3
- C-50 Skytrooper - Douglas DC-3
- C-51 Skytrooper - Douglas DC-3
- C-52 Skytrooper - Douglas DC-3
- C-53 Skytrooper - Douglas DC-3
- C-54 Skymaster - Douglas DC-4
- C-55 Commando
- C-56 Lodestar
- C-57 Lodestar
- C-58 Bolo
- C-59 Lodestar
- C-60 Lodestar
- C-61 Forwarder
- C-62 - Waco
- C-63 Hudson
- C-64 Norseman
- C-65 Skycar
- C-66 Lodestar
- C-67 Dragoon
- C-68 - Douglas DC-3
- C-69
Constellation
- C-70 Nightingale
- C-71 Executive
- C-72 - Waco
- C-73 - Boeing
- C-74 Globemaster -
Douglas
- C-75 Stratoliner
- C-76 Caravan
- C-77 - Cessna
- C-78 Bobcat
- C-79 - Junkers
- C-80 - Harlow
- C-81 Reliant
- C-82 Packet - Fairchild
- C-83 Coupe
- C-84 - Douglas
- C-85 Orion
- C-61 Forwarder
- C-87 Liberator Express
- C-88 - Fairchild
- C-89 - Hamilton
- C-90 - Luscombe
- C-91 - Stinson
- C-92 - Akron-Funk
- C-93 Conestoga
- C-94 - Cessna
- C-95 Grasshopper
- C-96 - Fairchild
- C-97 Stratofreighter - Boeing
- C-98 Clipper
- XC-99 - Convair
- C-100 Gamma
- C-101 Vega
- C-102 Speedster
- C-103 - Grumman
- C-104 - Lockheed
- C-105 - Boeing
- C-106 - Cessna
- C-107 Skycar
- C-108 Flying
Fortress
- C-109 Liberator
- C-110 - Douglas
- C-111 Super
Electra
- C-112 Liftmaster
- C-113 Commando
- C-114 Skymaster
- C-115 Skymaster
- C-116 Skymaster
- C-117 Super
Dakota - Douglas
- C-118 Liftmaster -
Douglas DC-6
- C-119 Flying
Boxcar - Fairchild
- C-120 Packplane -
Fairchild
- C-121
Constellation
- C-122 - Fairchild
- C-123 Provider - Fairchild
- C-124 Globemaster II
- C-125 Raider
- C-126 - Cessna
- C-127 - Boeing
- C-128 -
Fairchild
- C-129 Super Dakota
- C-130 Hercules - Lockheed
- C-131 Samaritan -
Convair
- C-132 - Douglas
- C-133 Cargomaster - Douglas
- C-134 Pantobase
- C-135 Stratolifter - Boeing 707
- C-137 Stratoliner -
Boeing 707 including "Air Force One"
- Fairchild C-138 - projected military Fairchild F-27 (license-built Fokker
F-27 Friendship), did not proceed.
- Lockheed C-139 - was to have been a transport version of the P-2
Neptune, did not proceed
- C-140 Jetstar -
Lockheed
- C-141 Starlifter - Lockheed
- XC-142 -
Chance Vought
- Curtiss C-143 - projected designation - became Curtiss X-19
Navy
Unified system, after 1962
- C-1 Trader
- C-2 Greyhound - Grumman
- C-3 - Martin
- C-4 Academe - Gulfstream
- C-5 Galaxy - Lockheed
- C-6 Ute
- C-7 Caribou - de Havilland Canada
- C-8 Buffalo
- C-9 Skytrain II - Douglas DC-9
- C-10 Extender
- C-11 Gulfstream
II - Gulfstream
- C-12 Huron - Beech 200
- C-13 - skipped
- C-14 - Boeing
- C-15 -
McDonnell Douglas
- C-16 - assigned to Cessna
Caravan but never used
- C-17 Globemaster III - Boeing
- EC-18 - original
designation for E-7
- C-19 - Boeing
- C-20 Gulfstream III - Gulfstream
- C-21 Learjet - Learjet
- C-22 - Boeing 727
- C-23 Sherpa - Shorts 330
- C-24 - Boeing
- VC-25 - Boeing "Air Force One"
- C-26 Metroliner -
Fairchild
- C-27 Spartan - Alenia
- C-28 - Cessna
- C-29 -
BAE SYSTEMS
- C-30 - apparently skipped
- C-31 Troopship - Fokker F.27M
- C-32 - Boeing 757
- C-33 - cancelled Boeing 747 variant
- C-34 - apparently skipped
- C-35 - Cessna
- C-36 - apparently skipped
- C-37 Gulfstream V
- C-38 Courier - Israeli
Aircraft Industries
- C-39 - apparently skipped
- C-40 Clipper - Boeing
Cargo Helicopter
US Army Chinook loads a Howitzer Gun
- CH-3 Sea King - Sikorsky
- CH-19 Chickasaw -
Sikorsky
- CH-21 Shawnee -
Piasecki
- CH-34 Chocktaw -
Sikorsky
- CH-37 Mojave - Sikorsky
- CH-46 Sea Knight - Boeing
- CH-47 Chinook - Boeing
- CH-53 Sea Stallion - Sikorsky nicknamed "Jolly Green
Giant"
- CH-54 Tarhe - Sikorsky
- CH-62 - Boeing
Electronic
USAF E-3 Sentry
- EA-1 Skyraider -
Douglas
- EA-3 Skywarrior - Douglas
- EA-4 Skyhawk
- EA-6 Prowler - Grumman
- EB-47 Stratojet
- ERB-47 Stratojet
- EB-57 Canberra
- EB-66 Destroyer
- EC-18 Aria - Boeing
- EC-20 Gulfstream
III
- EC-24 - McDonnell Douglas
- EC-47 Skytrain
- EC-54 Skymaster
- EC-121 Warning
Star - Lockheed
- EC-130 Compass
Call - Lockheed
- EC-135 Looking
Glass - Boeing
- EF-4 Phantom II
- EF-10 Skynight
- ERF-80 Shooting
Star
- EF-82 Twin
Mustang
- EF-105
Thunderchief
- EF-111 Raven - General Dynamics
- ES-2 Tracker
- ES-3 Shadow - Lockheed
- EP-3 Aries II - Lockheed
- EH-1 Quick Fix
- EH-6 Cayuse
- EH-60 Quick Hawk
Fighter
Navy, from 1922
(alpha by Navy-assigned mfgr letter)
- F2A - Brewster
- F3A - Brewster version of Corsair
- FB - Boeing
- F2B-1 - Boeing
- F3B Seahawk - Boeing
- F4B - Boeing
- F5B - naval designation of Boeing XP-15
- F6B - Boeing
- F7B - Boeing
- F8B - Boeing
- FC, F2C, F3C paper designation of racers
- F4C - Curtiss
- F5C skipped
- F6C Hawk - Curtiss
- F7C Seahawk - Curtiss
- F8C Falcon - Curtiss
- F8C-2 Helldiver -
Curtiss, different from F8C-1 and F8C-3
- F9C Sparrowhawk -
Curtiss
- F10C Helldiver -
Curtiss, modified F8C-2
- F11C Goshawk - Curtiss Hawk
II or Goshawk, redesig BFC
- F12C - Curtiss, became
SBC
- F13C - Curtiss
- F14C - Curtiss contra-rotating
propellors
- F15C - Curtiss jet + turboprop
- FD - Douglas
- F2D Banshee - Douglas, later redesignated F2H
- F3D Skyknight - Douglas
- F4D Skyray - Douglas, later F-6
- F5D Skylancer - Douglas, semi-operational
- F6D Missileer -
Douglas
- FF Fifi - biplane, first Navy fighter
by Grumman
- F2F - Grumman
- F3F - Grumman
- F4F Wildcat - Grumman
- XF5F Skyrocket - Grumman
twin-engine carrier-based fighter prototype
- F6F Hellcat - Grumman
- F7F Tigercat - Grumman
- F8F Bearcat - Grumman
- F9F Cougar - (Panther variant) Grumman
- F9F Panther - Grumman
- XF10F Jaguar - Grumman
variable-wing prototype
- F11F Tiger - Grumman, first supersonic aircraft in Navy
- F12F - Grumman, proposed all-weather interceptor
- Eberhart FG, F2G
- FG - Goodyear version of Corsair with fixed wings
- Goodyear F2G - proposed low-altitude Corsair
- Hall FH
- FH Phantom - McDonnell
- F2H Banshee - McDonnell, later F-2
- F3H Demon - McDonnell, later F-3
- F4H Phantom II - McDonnell, later F-4
- FJ - Berliner-Joyce
- F2J - Berliner-Joyce, P-16 in AAC
- FJ Fury - North American
- FL - Loening
- FL Airabonita - Bell, USN version of P-39
- F2L Kingcobra - Bell, USN version of P-63
- FM - General Motors version of Wildcat
- FM Wildcat - General Motors built version of F4F
- F2M Wildcat - General Motors built version of F4F, different engine to
FM
- F3M - General Motors built version of F8F
- Seversky FN
- FO Lightning - Lockheed, USN version of P-38
- FR Fireball - Ryan
- XF2R Dark Shark - Ryan
- FT - Northrop, USN A-17 derived design
- F2T Black Widow - Northrop, USN trainer version of P-61
- FU, F2U, F3U
- F4U Corsair - Chance Vought
- XF5U - Chance Vought's "flying pancake",
built but never flown
- F6U Pirate - Chance Vought
- F7U Cutlass - Chance
Vought
- F8U Crusader - Chance Vought
- Lockheed FV
- F2W - Wright
- F3W Apache - Wright
- FY Pogo - Convair
- F2Y Sea Dart - Convair
Air Force, pre-1948
(designated "P" for "Pursuit")
- P-1 Hawk
- P-2 Hawk
- P-3 Hawk
- Boeing XP-4
- P-5 Hawk
- P-6 Hawk
- Boeing XP-7
- Boeing XP-8
- Boeing XP-9
- Curtiss XP-10
- P-11 Hawk
- Boeing P-12
- XP-13 Viper
- Curtiss XP-14
- Boeing XP-15
- Berliner-Joyce
P-16
- XP-17 Hawk
- Curtiss XP-18
- Curtiss XP-19
- YP-20 Hawk
- Curtiss XP-21
- XP-22 Hawk
- XP-23 Hawk
- Lockheed XP-24
- Consolidated
Y1P-25
- P-26 Peashooter
- Consolidated
YP-27
- Consolidated
YP-28
- Boeing YP-29
- Consolidated
P-30
- Curtiss XP-31
- Boeing XP-32
- Consolidated
XP-33
- Wedell-Williams
XP-34
- Seversky P-35
- P-36 Hawk
- Curtiss XP-37
- P-38 Lightning
- P-39 Airacobra
- Curtiss P-40
- Seversky XP-41
- Curtiss XP-42
- P-43 Lancer
- P-44 Rocket
- Bell XP-45
- Curtiss XP-46
- P-47 Thunderbolt
- Douglas XP-48
- Lockheed XP-49
- Grumman XP-50
- P-51 Mustang
- Bell XP-52
- Curtiss XP-53
- XP-54 Swoose
Goose
- XP-55 Ascender
- XP-56 Black
Bullet
- Tucker XP-57
- XP-58 Chain
Lightning
- P-59 Airacomet
- Curtiss P-60
- P-61 Black Widow
- Curtiss XP-62
- P-63 Kingcobra
- North American
P-64
- Grumman XP-65
- P-66 Vanguard
- XP-67 Bat
- XP-68 Tornado
- Republic XP-69
- Douglas P-70
- Curtiss XP-71
- Republic XP-72
- Hughes P-73
- P-75 Eagle
- Bell XP-76
- Bell XP-77
- North American
XP-78
- XP-79 Flying Ram
Air Force, from 1948
Unified system, from 1962
Tanker
- KA-2 Savage - North
American
- KA-3 Skywarrior -
Douglas
- KA-6 Intruder -
Grumman
- KB-29
Superfortress - Boeing
- KB-47 Stratojet -
Boeing
- KB-50
Superfortress - Boeing
- KC-10 Extender - McDonnell-Douglas
- KC-97
Stratotanker - Boeing
- KC-124
Globemaster II - Douglas
- KC-130 Hercules - Lockheed
- KC-135 Stratotanker - Boeing
Observation
- O-1 - Curtiss Falcon
- O-2 - Douglas
- O-31/O-43/O-46 - Douglas
- O-47 - North
American
- OS2U Kingfisher - Vought
- OH-6A Cayuse
- OH-55 Kiowa - Bell
- OV-1 Mohawk - Grumman
- OV-10 Bronco - North American
- SOC Seagull - Curtiss
- SO3C - Curtiss
- O-1 Bird Dog
- O-2 Skymaster
Orbiter Vehicle
Patrol
Pursuit
Pursuit Aircraft of the US Army Air Service/Corps/Force, 1918-1948. After formation of US Air Force (USAF), all "P"
designations were changed to "F" while retaining number. Initially, "PW" was used to indicate "Pursuit, Water-cooled engine".
- PW-8 - Curtiss
- PW-9 - Boeing, FB in navy
- P-1 Hawk - Curtiss, derived from
PW-8; US Navy designation was F6C
- P-2 Hawk - Curtiss
- P-3 Hawk - Curtiss
- P-4 - Boeing
- P-5 Superhawk -
Curtiss
- P-6 Hawk - Curtiss, derived from
P-1
- XP-7 - Boeing
- XP-8 - Boeing
- XP-9 - Boeing
- XP-10 - Curtiss
- P-11 Hawk - Curtiss
- P-12 - Boeing, F4B in Navy
- XP-13
- XP-14 - Curtiss
- XP-15 - Boeing
- P-16 - Berliner-Joyce, F2J to Navy
- XP-17 - Curtiss
- XP-18 - Curtiss
- XP-19 - Curtiss
- YP-20 - Curtiss, derived from P-6
- XP-21 - Curtiss
- XP-22 - derived from P-6
- XP-23 - Curtiss
- YP-24 - Lockheed
- Y1P-25 - Consolidated
- P-26 - Boeing "Peashooter" monoplane
- XP-27 - Consolidated
- XP-28 - Consolidated
- F7B - Boeing, modified F7B
- P-30 - Consolidated, aka PB-2A
- XP-31 - Curtiss
- XP-32 - Boeing
- XP-33 - Consolidated
- XP-34 - Wedell-Williams
- P-35 - Seversky
- P-36 - Curtiss Model 75A, radial engine
- YP-37 - Curtiss Model 75I, in-line
engine
- P-38 Lightning - Lockheed, twin-engine twin-boom
- P-39 Airacobra - Bell, engine mounted behind pilot
- P-40 - Curtiss, Tomahawk (P-40A to P-40C), Kittyhawk (P-40D to P-40M),
Warhawk (P-40N to P-40Q)
- XP-41 - Seversky, derived from Seversky
P-35
- XP-42 - Curtiss P-36 with
experimental engine cowlings
- P-43 Lancer - Republic, derived
from XP-41
- P-44 Rocket - cancelled
- P-45 designation changed to P-39C
- XP-46 - Curtiss
- P-47 Thunderbolt - Republic
- XP-48 - Douglas
- XP-49 - Lockheed, derived
from P-38
- XP-50 - Grumman, derived from US Navy
XF5F
- P-51 Mustang - North American, originally for export to Britain
- XP-52 - Bell, twin-boom pusher configuration, never built
- XP-53 - Curtiss P-40 with laminar-flow
wing, cancelled during construction
- XP-54 - Vultee, twin-boom pusher
configuration
- XP-55 Ascender - Curtiss,
flying-wing configuration with pusher engine
- XP-56 - Northrop, tail-less with pusher
engine, magnesium construction
- XP-57 - Tucker, cancelled before construction
- XP-58 - Lockheed, another twin-engine,
twin-boom
- P-59 Airacomet - Bell, 1st American aircraft powered by jet
engine
- YP-60 - Curtiss
- P-61 Black Widow - Northrop
- XP-62 - Curtiss
- P-63 Kingcobra - Bell, engine again mounted behind pilot
- P-64 - North American, intended for export,
but used by USAAF as fighter trainer
- XP-65 - Grumman, derived from XP-50
- P-66 Vanguard - Vultee,
intended for export, but used by USAAF as fighter trainer
- XP-67 - McDonnell
- XP-68 - Vultee
- XP-69 - Republic
- P-70 Havoc - Douglas, "Havoc"
night-fighter derived from A-20
- XP-71 - Curtiss
- XP-72 - Republic
- XP-73 - mysterious Hughes project
- P-74 skipped
- P-75 Eagle - Fisher division of
General Motors
- XP-76 - Bell
- XP-77 - Bell, lightweight fighter of wooden
construction
- XP-78 - North American, changed to XP-51B during construction
- XP-79, Northrop
- P-80/F-80 Shooting Star - Lockheed, turbo-jet engine
- Convair XP-81 - Convair,
turbo-prop + turbo-jet engines
- P-82/F-82 Twin Mustang - North American
- XP-83 - Bell, two jet engines
Drone
Reconnaissance
- RA-2 Savage
- RA-3 Skywarrior
- RA-5 Vigilante - North
American
- RB-17 Flying
Fortress
- RB-26 Invader
- RB-29
Superfortress
- RB-36 Peacemaker
- RB-45 Tornado
- RB-47 Stratojet
- RB-52
Stratofortress
- RB-57 Canberra
- RB-58 Hustler
- RB-66 Destroyer
- RB-69 Neptune
- RC-7 Caribou
- RC-12 Guard Rail -
Beech Aircraft
- RC-47 Skytrain
- RC-54 Skymaster
- RC-121 Warning
Star
- RC-130 Hercules
- RC-131 Samaritan
- RC-135 Rivet Joint - Boeing
- RF-4 Phantom II -
McDonnell-Douglas
- RF-5 Tigereye
- RF-8 Crusader - Chance
Vought
- RF-9 Cougar
- RF-51 Mustang
- RF-61 Reporter
- RF-80 Shooting
Star
- RF-84 Thunderflash
- RF-86 Sabre
- RF-87 Blackhawk
- RF-100 Super
Sabre
- RF-101 Voodoo
- RF-104
Starfighter
- RF-105
Thunderchief
- SR-71 Blackbird - Lockheed
- U-2 - Lockheed
Trainer
- AT-9 Jeep - Curtiss-Wright
- AT-21 Gunner - Fairchild
- BT-13 Valiant - Vultee
- Curtiss Jenny - Curtiss
- PT-11 - Consolidated
- PT-13 and PT-17 Kaydet - Boeing
Stearman
- PT-19 - Fairchild
- PT-22 Recruit - Ryan
- SNC Falcon - Curtiss-Wright
- T-2 Buckeye - North American
- T-6 Texan - North American
- T-28 Trojan - North
American
- T-29 - Convair 240
- T-33 - Lockheed nicknamed "Teebird"
- T-38 Talon - Northrop
- T-39 Sabreliner - North
American
- T-43 - Boeing 737-based navigation trainer
- T-45 Goshawk - (Hawk) British Aerospace
- U-21A Ute -
Beechcraft/Raytheon
Utility
Vertical Take off and Landing
Experimental
Main article: X-plane
- X-1 - Bell, first supersonic aircraft
- X-2 - Bell
- X-3 Stiletto - Douglas
- X-4 Bantam - Northrop
- X-5 - Bell swing-wing
- X-6 - Convair
- X-7 - Lockheed missile
propulsion testbed
- X-8 - Aerojet
General missile
- X-9 Shrike - Bell missile
- X-10 - North
American missile
- X-11 - Convair ICBM prototype
- X-12 - Convair ICBM
- X-13 - Ryan VATOL
- X-14 - Bell VTOL
- X-15 - North American rocket plane
- X-16 - Bell, cancelled U-2
competitor
- X-17 - Lockheed
experimental rocket
- X-18 - Hiller tilt-wing
- X-19 -
Curtiss-Wright
- X-20 Dyna-Soar - Boeing
- X-21 - Northrop
- X-22 - Bell
- X-23 -
Martin Marietta
- X-24 - Martin Marietta lifting body
- X-25 - Bensen
- X-26 Frigate - Schweizer
- X-27 - Lockheed
- X-28 Sea Skimmer -
Pereira
- X-29 - Grumman forward-swept wing jet
- X-30 - Rockwell
- X-31 - Hypersonic jet or Orient Express
- X-32 - Boeing Joint Strike Fighter candidate
- X-33 - Lockheed Martin
- X-34 - Orbital Sciences
- X-35 - Lockheed Martin Joint Strike Fighter winner
- X-36 - McDonnell Douglas
- X-37 Future-X - Boeing
- X-38 - Scaled Composites crew return vehicle
- X-39 - unused designation reserved for Future Aircraft Technology Enhancements program
- X-40 - Boeing
- X-41 - classified re-entry vehicle
- X-42 - classified upper stage rocket
- X-43 - Boeing with others, scramjet-powered
- X-44 MANTA - Lockheed Martin
- X-45 - Boeing UCAV (unpiloted)
- X-46 - Boeing
- X-47 Pegasus - Northrop Grumman
- X-48 - Boeing
- X-49 -
Sikorsky Piasecki
- X-50 - Boeing
Related Links
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