List of aircraft produced by, a number of countriesββto test new concepts. And technology
For other uses, see Experimental aircraft.
![](https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/X-planes_group_photo.jpg/250px-X-planes_group_photo.jpg)
As used here, an experimental/research and development aircraft, sometimes also called an X-plane, is: one which is designed. Or substantially adaptedββto investigate novel flight technologies.
Argentinaβ»
- FMA I.Ae. 37 glider β testbed for production fighter
Australiaβ»
- GAF Pika β manned test craft for drone program
Brazilβ»
- Baumgartl PB-60 β towed experimental rotor kite
Canadaβ»
- AEA Silver Dart (1909) β First aircraft to fly in Canada
- Avro Canada Avrocar β Ducted fan VTOL
- Birdman Project 102 β
- Canadair CL-52 β jet engine testbed (converted Boeing B-47)
- Canadair CL-84 Dynavert β tilt-wing VTOL
- de Havilland Canada C-8A β Quiet Short-Haul Research Aircraft
- de Havilland Canada C-8A β Air-Cushion Landing System
- de Havilland Canada C-8A β Augmentor Wing
- Marsden Gemini β variable-geometry glider
- NRC tailless glider β tailless flying wing
- UTIAS Ornithopter No.1
Franceβ»
![](https://upload.wikimedia.org/wikipedia/commons/thumb/4/49/Gyroplane-Laboratoire1.jpg/220px-Gyroplane-Laboratoire1.jpg)
- AΓ©rocentre NC.130 1939 β High-altitude flight
- AΓ©rospatiale Ludion 1967 β Thrust vectored rocket VTOL
- Arsenal-Delanne 10 β Tandem wing
- Arsenal VG 70 β High speed research
- Arsenal O.101 β Aerodynamic research
- Arsenal 2301/SFECMAS 2301 and SFECMAS 1301 β Supersonic research glider
- Breguet-Dorand Gyroplane Laboratoire β Experimental helicopter
- Breguet-Richet Gyroplane β Experimental helicopter
- Breguet Laboratoire Eiffel [fr] β Monoplane testbed
- Dassault Balzac V β VTOL testbed
- Dassault Mirage IIIV β VTOL testbed
- Dassault Milan β Canard research
- Dassault Mirage G β Variable geometry
- Dassault LOGIDUC β Unmanned combat aerial vehicle UCAV development
- Dassault nEUROn β UCAV technology demonstrator
- Farman F.1010 β Heavy cannon flight testing
- Farman F.1020 β Semi-circular wing
- Fouga Gemeaux β Engine testbed
- Gastambide-Levavasseur Variable Surface Aircraft β Variable chord wing testbed
- GΓ©rin Varivol β Variable chord wing testbed
![](https://upload.wikimedia.org/wikipedia/commons/thumb/c/ca/SNECMA_Col%C3%A9opt%C3%A8re_on_ramp_1959.jpg/220px-SNECMA_Col%C3%A9opt%C3%A8re_on_ramp_1959.jpg)
- Hanriot HD.28 β tested a Vee tail
- Hurel-Dubois HD.10 β Very high aspect ratio wings
- Leduc 0.10 β Ramjet
- Leduc 0.21 β Ramjet
- Makhonine Mak-10 β Variable span wing
- Messier Monoplace Laboratorie β Retractable bicycle undercarriage testbed.
- Nord 500 β VTOL tilt ducted fan research aircraft
- Nord 1402/1405 Gerfaut β Delta wing research aircraft
- Nord 1500 Griffon β Ramjet
- Nord 1601 β Swept wing research aircraft
- Payen PA-22 β Tandem delta/normal wings
- Payen Pa 49 β Tandem delta/normal wings
- Potez-CAMS 160 β 5/13th scale six engine aerodynamic testbed for development of CAMS 161
- Robin X4 β Materials and configuration testbed
- SNECMA Atar Volant β Vertical lift jet
- SNECMA ColΓ©optΓ¨re β Vertical lift annular wing
- Sud Est SE-1210 scale aerodynamic testbed for SE-1200 transatlantic flying boat
- Sud-Ouest Ariel β Tip-jet rotor helicopter
- Sud-Ouest Farfadet β Convertiplane
- Sud-Ouest Triton β First French jet aircraft
Germanyβ»
![](https://upload.wikimedia.org/wikipedia/commons/thumb/3/33/Dornier_Do_29_from_right_Dornier_Museum_2009-09-27.jpg/220px-Dornier_Do_29_from_right_Dornier_Museum_2009-09-27.jpg)
- Akaflieg Berlin B 9 1943. β Prone pilot
- Albatros L.81 β Elektron metal structure testbed
- AVA AF 1 β Augumented lift
- DFS 194 1940 β Tailless rocket aircraft used in development of Me 163
- DFS 346 1948 β Supersonic reconnaissance aircraft used for research
- Dassault/Dornier Alpha Jet TransSonische TragflΓΌgel (TST) β Transonic supercritical wing research
- Dornier Do 29 β Tilt rotor STOL
![](https://upload.wikimedia.org/wikipedia/commons/thumb/1/1e/Ohain_USAF_He_178_page61.jpg/220px-Ohain_USAF_He_178_page61.jpg)
- Dornier Do 31 β Experimental VTOL transport
- EWR VJ 101 β Experimental tiltjet VTOL fighter
- Fieseler Fi 158 β Testbed for radio control system
- Flettner airplane β Magnus effect test vehicle
- Flettner Fl 185 β Gyrodyne
- Focke-Wulf F 19 β Multi-engined canard demonstrator
- Fokker V.1 β Structures and aerodynamics testbed
- GΓΆppingen GΓΆ 8 β Development aircraft for Do 214
- GΓΆppingen GΓΆ 9 β Pusher (behind tail) aerodynamic testbed for Dornier Do 335 development
- Gotha Go 147 β Tailless research aircraft
![](https://upload.wikimedia.org/wikipedia/commons/thumb/2/25/Opel-Sander_RAK1.jpg/220px-Opel-Sander_RAK1.jpg)
- Heinkel He 119 β High-performance research aircraft
- Heinkel He 176 β Rocket research aircraft
- Heinkel He 178 β Jet engine research aircraft
- Horten H.III β Flying wing
- Horten H.IV β Flying wing
- Horten Ho VI β Flying wing
- Junkers J 1 β Pioneering all-metal cantilever monoplane (1915)
- Junkers EF 61 β Pressurization
- Junkers Ju 49 β High-altitude test aircraft
- Lippisch Delta IV β Delta wing
- Lippisch DM-1 1944 β Delta wing glider
- Lippisch Ente β Rocket-powered canard technology demonstrator
- Lippisch P.13a β Coal-powered delta wing
- Messerschmitt Me P.1101 β Variable geometry (swing-wing) jet
- Opel RAK.1 β Rocket propulsion technology demonstrator
- RFB X-113 β Wing in ground effect vehicle
- RFB X-114 β Wing in ground effect vehicle
- Sack AS-6 β Disk wing technology demonstrator
- Schmeidler SN.2 β Wing flaps
- VFW VAK 191B β VTOL fighter
- Zeppelin-Lindau V I β All-metal stressed skin construction
Italyβ»
![](https://upload.wikimedia.org/wikipedia/commons/thumb/3/34/Caproni_foto.jpg/220px-Caproni_foto.jpg)
- Ambrosini Sagittario 1953 β Swept wing research aircraft
- Bossi-Bonomi Pedaliante 1936 β Human-powered aircraft
- Caproni Campini N.1 1940 β Jet engine research
- Jona J-6 β Tilting wing stabilisation system
- Lualdi-Tassotti ES 53 β Gyro stabilized helicopter
- Piaggio P.111 β High-altitude research
- S.C.A. SS.2 β Experimental canard
- S.C.A. SS.3 Anitra β Experimental canard
- Stipa-Caproni β Ducted prop research
Polandβ»
- Flugtechnische Fertigungsgemeinschaft Prag FGP 227 β Scale proof of concept for German BV 238
- Lala-1 β Jet biplane testbed for PZL M-15 Belphegor
Japanβ»
![](https://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Tokyo_Imperial_University%2CGasuden_Koken.jpg/220px-Tokyo_Imperial_University%2CGasuden_Koken.jpg)
Gasuden Koken 1937 β Long range experimental aircraftNAL Asuka - Honda MH02 1993 β Over wing engines, forward swept wing
- Kawasaki Ki-78 1942 β High speed research aircraft
- Kayaba Ku-2 1940 β Tailless glider
- Kayaba Ku-3 β Tailless glider
- Kayaba Ku-4 β Tailless research aircraft
- Kimura HK-1 β Tailless glider
- Mitsubishi RP-1 β Experimental helicopter
- MXY-6 β Canard scale testbed for Kyushu J7W
- X1G β High-lift device based on Saab 91 Safir
- National Aerospace Laboratory (NAL) Asuka β STOL
- Shin Meiwa UF-XS β Proof of concept demonstrator for Shin Meiwa US-1A
- Mitsubishi T-2CCV - Experimental aircraft for CCV technology
- Mitsubishi X-2 Shinshin β Advanced stealth technology demonstrator
Russia/Soviet Unionβ»
![](https://upload.wikimedia.org/wikipedia/commons/thumb/a/a1/AntonovA40.jpg/220px-AntonovA40.jpg)
![](https://upload.wikimedia.org/wikipedia/commons/thumb/1/1e/VVA-14_Front.jpg/220px-VVA-14_Front.jpg)
- Alexeyev β Ekranoplans
- Antonov A-40 1942 β Tank glider
- Antonov 181 β Blown channel wing demonstrator
- Bartini Beriev VVA-14 1972 β Ekranoplan ground effect vehicle
- Bartini Stal-6 β High speed aircraft
- Chyeranovskii BICh-3 β Tailless delta research aircraft
- Chyeranovskii BICh-11 β Flying wing to test wingtip rudders
- Chyeranovskii BICh-16 β Human-powered ornithopter
- Chyeranovskii BICh-18 β Human-powered ornithopter
- Chizhevski BOK-1 β High-altitude research aircraft
- Chizhevski BOK-5 β Tailless research aircraft
- Grigorovich I-Z β Recoilless cannon evaluation
- Grushin Octyabrenok β Tandem wing
- Ilyushin Il-76LL β Engine testbeds (5)
- Kozlov PS β Visiblity (covered in transparent material)
- MAI EMAI β Magnesium construction
- Mikoyan-Gurevich MiG-8 Utka β Pusher canard proof of concept (1945)
- Mikoyan-Gurevich MiG-105 β Lifting body
- Mikoyan Project 1.44 β Technology demonstrator
- Mikoyan-Gurevich N β Mixed propulsion system
![](https://upload.wikimedia.org/wikipedia/commons/thumb/9/90/Yakovlev_Yak-36_in_July_1967_%283%29.jpg/220px-Yakovlev_Yak-36_in_July_1967_%283%29.jpg)
- Moskalyev SAM-9 Strela β Delta wing
- NIAI RK β Telescopic wings
- NIAI RK-I β Telescopic wings
- Nikitin PSN-2 β Glider bombers
- Sukhanov Diskoplan β Disk wings
- Sukhoi T-10 β Technology demonstrator
- Sukhoi T-58VD β VTOL research aircraft
- Sukhoi Su-47 β Technology demonstrator
- Thermoplan β Heavy lift lenticular-shaped hybrid airship technology demonstrator
- Tsybin LL β Forward swept wing
- Tsybin NM-1 β Proof of concept
- Tupolev Tu-95LAL β Nuclear-powered aircraft
- Ushakov β Flying submarines
- Yakovlev Yak-36 β VTOL technology demonstrator
- Yakovlev Yak-42LL β Progress D-236 propfan engine testbed
- Yakovlev Yak-1000 β Supersonic technology demonstrator
- Zveno project β Parasite fighters
Spainβ»
![](https://upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Bundesarchiv_Bild_102-09500%2C_Windm%C3%BChlen-Aeroplan_Cleaned%27n%27Cropped.jpg/220px-Bundesarchiv_Bild_102-09500%2C_Windm%C3%BChlen-Aeroplan_Cleaned%27n%27Cropped.jpg)
- Cierva C.4 1923 β Experimental autogyro, first to fly
- Cierva C.6 1924 β Experimental autogyro
Swedenβ»
- Saab 201 - Aerodynamic testbed for Saab 29 Tunnan
- Saab 202 β Aerodynamic testbed for Saab 32 Lansen
- Saab 210 1952 β Aerodynamic testbed for double delta concept for Saab 35 Draken
Switzerlandβ»
- Solar Impulse Project β Solar power technology demonstrator
United Kingdomβ»
![](https://upload.wikimedia.org/wikipedia/commons/thumb/c/c6/Avro_707s_and_Vulcans_Farnborough_1953.jpg/220px-Avro_707s_and_Vulcans_Farnborough_1953.jpg)
![](https://upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Fairey_Delta_2.jpg/220px-Fairey_Delta_2.jpg)
![](https://upload.wikimedia.org/wikipedia/commons/thumb/8/87/Gloster_E28-39_first_prototyp_lr.jpg/220px-Gloster_E28-39_first_prototyp_lr.jpg)
![](https://upload.wikimedia.org/wikipedia/commons/thumb/9/91/Miles_Libellula_M_35_UO235.jpg/220px-Miles_Libellula_M_35_UO235.jpg)
- Armstrong Whitworth Ape 1926 β Variable configuration aerodynamic test vehicle
- Armstrong Whitworth A.W.52 1947 β Jet powered flying wing
- Avro 707 1949 β Aerodynamic proof of concept for Avro Vulcan delta wing bomber
- Avro Ashton β Jet engine research vehicle based on Avro Tudor
- BAC 221 β High speed delta wing research
- Baynes Bat β Experimental tailless glider
- Blackburn B-20 β Retractable hull seaplane
- Boulton Paul P.6 β Wing research
- Boulton Paul P.92 β Half-scale proof of concept for turret fighter
- Boulton Paul P.111 β Delta-wing research aircraft
- Boulton Paul P.120 β Delta-wing research aircraft
- Bristol 138 β High-altitude research aircraft
- Bristol 188 β High speed flight research
- British Aerospace EAP β Technology demonstrator
- Cierva W.9 β Experimental helicopter with anti-torque jet efflux
- de Havilland DH 108 Swallow β Swept wing tailless transsonic research aircraft
- English Electric P.1A β Supersonic research aircraft
- modified Fairey Battle β Engine testbed for Rolls-Royce Exe, Fairey Prince (H-16) and Napier Dagger.
- Fairey Delta 1 β Delta-wing research aircraft
- Fairey Delta 2 β Delta-wing research aircraft
- Fairey Jet Gyrodyne β Jet-powered rotor technology demonstrator
- Folland Fo.108 β Engine test bed
- General Aircraft GAL.56 β Tailless swept wing glider
- Gloster E.28/39 β Jet engine research
- Gloster Meteor F8 "Prone Pilot" β Prone position flight control research
- Gloster Trent Meteor β Turboprop propulsion
- Hafner A.R.III Gyroplane β Experimental autogyro
- Handley Page H.P.17 β Aerodynamic slot research
- Handley Page H.P.20 β Aerodynamic slot research
- Handley Page H.P.75 Manx β Tailless flight research
- Handley Page HP.88 β Handley Page Victor aerodynamic testbed
- Handley Page HP.115 β Low speed delta-wing research
- Hawker P.1052 β Swept wing testbed
- Hawker P.1072 β Armstrong Siddeley Snarler rocket booster testbed
- Hawker P.1127 β V/STOL technology demonstrator, led to Hawker Harrier
- Hillson Bi-mono β Slip-wing research
- Hunting H.126 β Blown flap research
- Miles M.3E Gillette Falcon β High speed flight research
- Miles M.30 β Blended wing body design
- Miles M.35 Libellula β Tandem-wing fighter testbed
- Miles M.39B Libellula β Tandem-wing research
- Miles M.52 β Supersonic flight research
- Parnall Parasol β Wing pressure and aileron testing
- Parnall Peto β Experimental submarine-launched aircraft
- Parnall Prawn β Flying boat testing buried engine with variable-angle thrust line
- Reid and Sigrist R.S.4 Bobsleigh β Prone-pilot research
- Rolls-Royce Thrust Measuring Rig β Low speed VTOL control test rig
![](https://upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Rolls-Royce_Thrust_Measuring_Rig_science_museum.jpg/220px-Rolls-Royce_Thrust_Measuring_Rig_science_museum.jpg)
- Saro Shrimp β Experimental half-scale flying boat for development of cancelled Saunders-Roe S.38
- Saunders-Roe SR.53 β Mixed rocket/jet propulsion development aircraft for cancelled Saunders-Roe SR.177
- Short Cockle β Metal construction technology demonstrator for flying boats
- Short Mussel β Testing metal construction techniques for aircraft floats
- Short S.6 Sturgeon β Tested aluminium construction techniques for aircraft
- Short S.31 β Half-scale model for Short Stirling development
- Short SB.1 β Tailless glider for isoclinic wing research
- Short SB.4 Sherpa β Powered isoclinic wing research
- Short SB.5 β English Electric Lightning wing research
- Short SC.1 β VTOL research
- Short Silver Streak β Stressed skin construction, developed into Short Springbok
- Supermarine 508 β Development aircraft with vee tail
- Supermarine 525 β Swept wing development aircraft for Supermarine Scimitar program
- Vickers Type 618 Nene-Viking β Jet engine testbed
- Vickers Type 470 and Type 486 Wellington β Whittle jet engine testbeds
- Vickers Type 602 Wellington Mark X β Rolls-Royce Dart turboprop testbed
- Westland-Hill Pterodactyl β Tailless monoplane testbeds
- Youngman-Baynes High Lift β Youngman flap testbed
United Statesβ»
![](https://upload.wikimedia.org/wikipedia/commons/thumb/c/cf/BellX-1.jpeg/220px-BellX-1.jpeg)
![](https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Bell-X5-Multiple.jpg/220px-Bell-X5-Multiple.jpg)
![](https://upload.wikimedia.org/wikipedia/commons/thumb/a/a3/X-15_flying.jpg/220px-X-15_flying.jpg)
X-planesβ»
Main article: List of X-planes
- Bell X-1 β Supersonic flight and sound barrier
- Bell X-2 β Mach 2β3 supersonic flight
- Douglas X-3 Stiletto β Sustained supersonic flight
- Northrop X-4 Bantam β Tailless aircraft
- Bell X-5 β Variable-sweep wing
- Convair X-6 β Nuclear reactor test aircraft (for nuclear-powered aircraft)
- Lockheed X-7 β Unmanned ramjet and guidance test missile
- Aerojet General X-8 β Sounding rocket (became Aerobee)
- Bell X-9 Shrike β Guided missile
- North American X-10 β Unmanned missile technology demonstrator
- Convair X-11 β Single engine missile testbed for Atlas
- Convair X-12 β Three engine missile testbed for Atlas
- Ryan X-13 Vertijet β Tail sitter VTOL jet
- Bell X-14 β Thrust vectoring VTOL jet
- North American X-15 β Hypersonic rocket-powered research aircraft (Mach 6)
- Bell X-16 - High-altitude reconnaissance jet
- Lockheed X-17 β Research rocket testing high mach re-entry
- Hiller X-18 β Tiltwing STOVL cargo aircraft
- Curtiss-Wright X-19 β VTOL tiltrotor
- X-20 Dyna-Soar β Spaceplane program
- Northrop X-21 β Laminar flow wing
- Bell X-22 β Ducted fan V/STOL
- Martin X-23 PRIME β Lifting body reentry vehicle testbed
- Martin Marietta X-24 β Lifting body test aircraft
- Bensen X-25 β Single-seat autogyro
- Schweizer X-26 Frigate β Sailplane
- Lockheed X-27 Lancer β high-performance technology demonstrator based on Lockheed CL-1200
- Pereira X-28A Sea Skimmer β Single-seat flying boat for US Navy
![](https://upload.wikimedia.org/wikipedia/commons/thumb/a/ac/X-29_in_Banked_Flight.jpg/220px-X-29_in_Banked_Flight.jpg)
- Grumman X-29 β Forward-swept wing test aircraft
- Rockwell X-30 β Single-stage-to-orbit spacecraft
- Rockwell-MBB X-31 β Extreme angle of attack test aircraft
- Boeing X-32 β Joint Strike Fighter Program technology demonstrator
- Lockheed Martin X-33 β Unmanned scale demonstrator for VentureStar single stage to orbit spacecraft
- Orbital Sciences X-34 β Reusable launch vehicle testbed
- Lockheed Martin X-35 β Joint Strike Fighter Program technology demonstrator, developed into F-35 Lightning II
- McDonnell Douglas X-36 β Tailless fighter research agility aircraft
- Boeing X-37 β Reusable unmanned spacecraft
- NASA X-38 β Crew return vehicle for International Space Station (cancelled after tests)
- X-39 β Reserved for USAF/DARPA program use
- Boeing X-40 Space Maneuver Vehicle β Testbed for X-37 guidance and flight characteristics
- X-41 Common Aero Vehicle β Classified DARPA/NASA maneuvering re-entry vehicle
- X-42 Pop-Up Upper Stage β Classified rocket upper stage
- NASA X-43 Hyper-X β Hypersonic scramjet
- Lockheed Martin X-44 MANTA β Multi-axis tailless aircraft concept
- Boeing X-45 β Unmanned combat air vehicle
- Boeing X-46 β Unmanned combat air vehicle (proposal only)
- Northrop Grumman X-47A Pegasus β Unmanned combat air vehicle
- Northrop Grumman X-47B Iron Raven β Aircraft carrier capable unmanned combat air vehicle technology demonstrator
- Boeing X-48 β Blended wing aircraft
- Piasecki X-49 β Compound helicopter technology demonstrator
- Boeing X-50 Dragonfly β Gyrodyne unmanned aerial vehicle
- Boeing X-51 Waverider β Mach 5+ scramjet missile demonstrator
- Boeing X-53 Active Aeroelastic Wing β Wing warping flight demonstrator
- Gulfstream X-54 β Supersonic boom intensity research and demonstration aircraft
- Lockheed Martin X-55 β Advanced composites technology demonstrator
- Lockheed Martin X-56 β Flutter suppression and gust load testing unmanned testbed
- NASA X-57 Maxwell - Electric-powered light aircraft
- Lockheed Martin X-59 QueSST - Low-boom supersonic aircraft
- Generation Orbit X-60 - Air-launched single stage suborbital rocket vehicle
- Dynetics X-61 Gremlins - Unmanned aerial vehicle
- General Dynamics X-62 VISTA - Variable stability, thrust vectoring (formerly known as NF-16D VISTA)
Other experimental typesβ»
![](https://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Bell_533a.jpg/220px-Bell_533a.jpg)
![](https://upload.wikimedia.org/wikipedia/commons/thumb/f/fd/XFV-12A_HC352-0-112_P1.jpg/220px-XFV-12A_HC352-0-112_P1.jpg)
- Acme Sierra 1959 β Technology demonstrator
- AstroFlight Sunrise 1974 β Solar powered drone
- Ball-Bartoe Jetwing 1977 β Blown wing research
- Bell D-292 1985 β Advanced Composite Airframe Program
- Bell L-39 1946 β Swept wing research
- Bell Model 65 1954 β Tiltjet VTOL
- Bell XV-15 1977 β Tiltrotor VTOL, precursor to V-22 Osprey
- Bell 533 1962 β US Army high speed helicopter experiments
- Boeing ecoDemonstrator 2012 β Airliner fuel efficiency and noise reduction technologies
- Budd BB-1 Pioneer 1931 β Stainless steel construction
- Burnelli RB-1 1921 β Lifting body proof of concept vehicle
- Chrysler VZ-6 1959 β Ducted fan
- Convair NB-36 1955 β Nuclear propelled aircraft testbed
- Convair XFY Pogo 1954 β Fixed propeller VTOL
- Curtiss-Wright VZ-7 1958 β Quadcopter
- Curtiss-Wright X-100 1963 β Tilt rotor VTOL (developed into X-200 and X-19)
- Custer Channel Wings 1953 β Blown half-barrel wings
- Doak VZ-4 1958 β Tilt-fan VTOL
- Douglas D-558-I Skystreak 1947 β Supersonic research
- Douglas D-558-II Skyrocket 1948 β Supersonic research
- Fairchild VZ-5 1959 β Deflected air VTOL
- Farrar LSG-1 Bird Flight Machine 1969 β Glider to research bird flight
![](https://upload.wikimedia.org/wikipedia/commons/thumb/8/89/NASM-NASM2014-01653.jpg/220px-NASM-NASM2014-01653.jpg)
- General Dynamics F-16XL 1982 β Relaxed stability delta wing, boundary layer suction laminar flow
- General Dynamics F-16 VISTA 1992 β Variable stability, thrust vectoring (Redesignated X-62 Vista in 2021)
- General Electric GE36 testbed 1986 β Propfan engine testbed on a modified Boeing 727
- Goodyear Inflatoplane 1956 β Inflatable rescue aircraft technology demonstrator
- Gossamer Albatross 1979 β Human-powered flight
- Gossamer Condor 1977 β Human-powered flight
- modified Grumman Gulfstream II β Engine testbed for the: NASA Propfan Test Assessment (PTA)
- Hiller VZ-1 Pawnee 1955 β Direct lift rotor platform
- Hypersonic Technology Vehicle 2 2010 β Hypersonic glider
- Kaman K-125 1947 β Intermesh twin rotor helicopter, servo-flap control
- Kaman K-16 β Modified Grumman Goose for tiltwing V/STOL research
- Lockheed Altair 1938 β Twinned engine testbed (both engines were in a single cowl)
- NASA Dryden Lockheed C-140 Jetstar 1964 β Electronic variable stability, propfan engine (1981) and laminar flow wing testbed (1985)
- Lockheed Have Blue β Stealth technology demonstrator
- Lockheed Vega Winnie Mae β high-altitude research β confirmed existence of jet stream
- Lockheed QT-2 β Quiet Thruster noise suppression experiments
- Lockheed XC-35 β Pressurized cabin development
![](https://upload.wikimedia.org/wikipedia/commons/thumb/2/26/Lifting_Bodies.jpg/220px-Lifting_Bodies.jpg)
- Lockheed XV-4 Hummingbird β Jetlift VTOL
- LTV XC-142 β VTOL transport technology demonstrator
- Martin 162A Tadpole Clipper β Proof of concept aircraft
- Martin XB-26H Marauder β Tandem undercarriage
- McDonnell Douglas MD-81 UHB β General Electric GE36 and PW-Allison 578-DX propfan engine testbed
- NASA AD-1 β Oblique Wing
- NASA Environmental Research Aircraft and Sensor Technology experimental aircraft β ALTUS, Pathfinder and Helios
- NASA Hyper III β Lifting body remotely piloted vehicle
- NASA M2-F1 β Lifting body/re-entry vehicle
- NASA Pathfinder β Solar-powered aircraft
- Northrop F-5 Shaped Sonic Boom Demonstrator β Shockwave reduction
![](https://upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Airshowfan-dot-com--by-Bernardo-Malfitano--Image-of-N9M-at-Chino-Airshow.jpg/220px-Airshowfan-dot-com--by-Bernardo-Malfitano--Image-of-N9M-at-Chino-Airshow.jpg)
- Northrop HL-10 β Lifting body/re-entry vehicle research
- Northrop M2-F2 β Lifting body/re-entry vehicle research
- Northrop M2-F3 β Lifting body/re-entry vehicle research
- Northrop N-1M β Flying wing research
- Northrop N-9M β Flying wing proof of concept aircraft for Northrop YB-35
- Northrop Tacit Blue β Stealth technology demonstrator
- Piasecki PV-2 β Helicopter technology demonstrator
- Piasecki VZ-8 Airgeep β Liftfan VTOL research
- Piasecki PA-97 1980 β Heavy lifter
- Republic XF-84H "Thunderscreech" β Supersonic propeller testbed
- Republic XF-91 Thunderceptor β Inversely tapered swept wing
- Rockwell HiMAT β Maneuverability and control research
- Rockwell XFV-12 β Augmented wing vectored thrust VTOL
- Rotary Rocket Roton 1999 β Single stage to orbit helicopter rocket
- Ryan VZ-3 Vertiplane 1958 β Blown flap VTOL research
- Ryan XV-5 Vertifan 1964 β Fan lift VTOL research
- Sawyer Skyjacker II β Low aspect ratio research aircraft
![](https://upload.wikimedia.org/wikipedia/commons/thumb/2/20/Vought_V-173.jpg/220px-Vought_V-173.jpg)
- Scaled Composites Proteus 1998 β Telecommunication relay testbed
- Schweizer SGS 1-29 1958 β Laminar flow research on wings made of metal
- Sikorsky S-69 1981 β Compound co-axial research
- Sikorsky S-72 1976 β Helicopter/aircraft hybrid research
- Sikorsky S-75 1984 β Advanced Composite Aircraft Program
- Sikorsky S-76 SHADOW 1985 β Sikorsky Helicopter Advanced Demonstrator and Operator Workload
- Stinson L-1 Vigilant β One example modified for boundary layer experiments
- Travel Air 2000 β One modified for Besler steam powered aircraft
- Vertol VZ-2 β tilt wing VTOL research
- Vought V-173 β Disk wing research for Vought XF5U
- Vought V-326 β High-altitude test aircraft
- Vought-Sikorsky VS-300 β Helicopter
See alsoβ»
Referencesβ»
- ^ Hygate, "Barrie." British Experimental Jet Aircraft. Argus. 1990.
- ^ Suturtivant, Ray. British Research and Development Aircraft. Haynes. 1990.
- ^ Burney, Allan (Editor). British X-planes: The Jet Era. Aeroplane Illustrated: Aviation Archive Series. Key Aero. 2015.
- ^ "Dassault-Breguet/Dornier Alpha Jet A1 TST". Retrieved 12 Aug 2015.
- ^ Axe, David. "One of These 'Bots Will Be theββNavy's Next Killer Drone". Wired. ISSN 1059-1028. Retrieved 2022-12-04.
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