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词条 List of X-planes
释义

  1. List

  2. See also

  3. Notes

  4. References

  5. Bibliography

  6. External links

{{Redirect|X-plane}}

The X-planes are a series of experimental United States aircraft and rockets, used to test and evaluate new technologies and aerodynamic concepts. They have an X designator, which indicates the research mission within the US system of aircraft designations.

Most of the X-planes have been operated by the National Advisory Committee for Aeronautics (NACA) or, later, the National Aeronautics and Space Administration (NASA), often in conjunction with the United States Air Force. The majority of X-plane testing has occurred at Edwards Air Force Base.[1]

Some of the X-planes have been well publicized, while others, such as the X-16, have been developed in secrecy.[2] The first, the Bell X-1, became well known in 1947 after it became the first aircraft to break the sound barrier in level flight.[3] Later X-planes supported important research in a multitude of aerodynamic and technical fields, but only the North American X-15 rocket plane of the early 1960s achieved comparable fame to that of the X-1.{{citation needed|date=March 2016|reason=the fame comparison looks suspiciously like an editorial value judgement}} X-planes 8, 9, 11, 12, and 17 were actually missiles[4]{{rp|14,15,17,18,24}} used to test new types of engines, and some other vehicles were un-manned (some were remotely flown, some were partially or fully autonomous).

Most X-planes are not expected to go into full-scale production; one exception was the Lockheed Martin X-35, which competed against the Boeing X-32 during the Joint Strike Fighter Program, and has entered production as the F-35.[5]

Not all US experimental aircraft have been designated as X-planes; some received US Navy designations before 1962,[6] while others have been known only by manufacturers' designations,{{#tag:ref|For example, the Piasecki PA-97|group= N}} non-'X'-series designations,{{#tag:ref|For example, the NASA AD-1 and Bell XV-15|group=N}} or classified codenames.{{#tag:ref|For example, the Northrop Tacit Blue|group=N}}

List

{{avilisthead|nonstandard}}
|+ List of X-planes		 Type Manufacturer Agency Image Date Role Notes
|-
|X-1
|Bell
|USAF, NACA
|
|1946
|High-speed and high-altitude flight
|First aircraft to break the sound barrier in level flight.
Proved aerodynamic viability of thin wing sections.[4]{{rp|5–7}}
|-
|X-1A
X-1B
X-1C
X-1D
|Bell
|USAF, NACA
|
|1951
|High-speed and high-altitude flight
|
|-
|X-1E
|Bell
|USAF, NACA
|
|1955
|High-speed and high-altitude flight
|
|-
|X-2
|Bell
|USAF
|
|1952
|High-speed and high-altitude flight
|First aircraft to exceed Mach 3.[4]{{rp|8}}
|-
|X-3
Stiletto
|Douglas
|USAF, NACA
|
|1952
|Highly loaded trapezoidal wing
|Titanium alloy construction; Underpowered, but provided insights into inertia coupling.[4]{{rp|9}}
|-
|X-4
Bantam
|Northrop
|USAF, NACA
|
|1948
|Transonic tailless aircraft[4]{{rp|10}}
|
|-
|X-5
|Bell
|USAF, NACA
|
|1951
|variable geometry
|First aircraft to fly with variable wing sweep.[4]{{rp|11}}
|-
|X-6
|Convair
|USAF, AEC
|
|1957
|Nuclear Propulsion
|Not built. The Convair NB-36H was a B-36 modified to carry a nuclear reactor and flew from 1955 to 1957.[4]{{rp|12}}[7]
|-
|X-7
|Lockheed
|USAF, USA, USN
|
|1951
|Ramjet engines.[4]{{rp|13}}
|
|-
|X-8
Aerobee
|Aerojet
|NACA, USAF, USN
|
|1949
|Upper air research[4]{{rp|14}}
|Later models used as sounding rockets.
|-
|X-9
Shrike
|Bell
|USAF
|
|1949
|Guidance and propulsion technology
|Assisted development of GAM-63 Rascal missile.[4]{{rp|15}}
|-
|X-10
|North American
|USAF
|
|1953
|SM-64 Navajo missile testbed.[4]{{rp|16}}
|
|-
|X-11
|Convair
|USAF
|
|1957
|SM-65 Atlas missile testbed.[4]{{rp|17}}
|
|-
|X-12
|Convair
|USAF
|
|1957
|SM-65 Atlas missile testbed.[4][4]{{rp|18}}
|
|-
|X-13
Vertijet
|Ryan
|USAF, USN
|
|1955
|Vertical takeoff and landing (VTOL)
|tailsitting VTOL flight.[4]{{rp|19}}
|-
|X-14
|Bell
|USAF, NASA
|
|1957
|VTOL
|Vectored thrust configuration for VTOL flight.[4]{{rp|20}}
|-
|X-15
|North American
|USAF, NASA
|
|1959
|Hypersonic, high-altitude flight
|First manned hypersonic aircraft; capable of suborbital spaceflight.[4]{{rp|21–22}}
|-
|X-15 A-2
|North American
|USAF, NASA
|
|1964
|Hypersonic, high-altitude flight
|Major Pete Knight flew the X-15 A-2 to a Mach 6.70, making it the fastest piloted flight of the X-plane program.
|-
|X-16
|Bell
|USAF
|
|1954
|High-altitude reconnaissance[4]{{rp|23}}
|"X-16" designation used to hide true purpose.[8] Cancelled and never flew.
|-
|X-17
|Lockheed
|USAF, USN
|
|1956
|High Mach number reentry.[4]{{rp|24}}
|
|-
|X-18
|Hiller
|USAF, USN
|
|1959
|Vertical and/or short take-off and landing (V/STOL)
|Evaluated the tiltwing concept for VTOL flight.[4]{{rp|25}}
|-
|X-19
|Curtiss-Wright
|Tri-service
|
|1963
|Tandem tiltrotor VTOL[4]{{rp|26}}
|XC-143 designation proposed.[9]
|-
|X-20
Dyna-Soar
|Boeing
|USAF
|
| 1963
|Reusable spaceplane
|Military missions.[4]{{rp|27}} Cancelled and never built.
|-
|X-21A
|Northrop
|USAF
|
|1963
|Boundary layer control[4]{{rp|28}}
|
|-
|X-22
|Bell
|Tri-service
|
| 1966
|Quad ducted fan tiltrotor STOVL[4]{{rp|29}}
|
|-
|X-23
PRIME
|Martin Marietta
|USAF
|
| 1966
|Maneuvering atmospheric reentry[4]{{rp|30}}
|Designation never officially assigned.[10]
|-
|X-24A
|Martin Marietta
|USAF, NASA
|
| 1969
|Low-speed lifting body[4]{{rp|31}}
|
|-
|X-24B
|Martin Marietta
|USAF, NASA
|
| 1973
|Low-speed lifting body[4]{{rp|32}}
|
|-
|X-25
|Bensen
|USAF
|
| 1955
|Commercial light autogyro for downed pilots.[4]{{rp|33}}
|
|-
|X-26
Frigate
|Schweizer
|DARPA, US Army, USN
|

|1967
|Training glider for yaw-roll coupling
Quiet observation aircraft[4]{{rp|34}}
|
|-
|X-27
|Lockheed
|None
|
|1971
|High-performance fighter[4]{{rp|35}}
|Cancelled and never flew.
|-
|X-28
Sea Skimmer
|Osprey
|USN
|
|1970
|Low-cost aerial policing seaplane[4]{{rp|36}}
|
|-
|X-29
|Grumman
|DARPA, USAF, NASA
|
|1984
|Forward-swept wing[4]{{rp|37}}
|
|-
|X-30
NASP
|Rockwell
|NASA, DARPA, USAF
|
|1993
|Single stage to orbit spaceplane[4]{{rp|38}}
|Cancelled and never built.
|-
|X-31
|Rockwell-MBB
|DARPA, USAF, BdV
|
|1990
|Thrust vectoring supermaneuverability[4]{{rp|39}}
|
|-
|X-32A
|Boeing
|USAF, USN, USMC, RAF
|
| 2000
|Joint Strike Fighter[4]{{rp|40–41}}
|
|-
|X-32B
|Boeing
|USAF, USN, RAF
|
|2001
|Joint Strike Fighter[4]{{rp|40–41}}
|
|-
|X-33
Venture Star
|Lockheed Martin
|NASA
|
| N/A
|Half-scale reusable launch vehicle prototype.[4]{{rp|42}}
|Prototype never completed.
|-
|X-34
|Orbital Sciences
|NASA
|
| N/A
|Reusable unmanned spaceplane.[4]{{rp|43}}
|Never flew.
|-
|X-35A
|Lockheed Martin
|USAF, USN, USMC, RAF
|
|2000
|Joint Strike Fighter[4]{{rp|44–45}}
|
|-
|X-35B
|Lockheed Martin
|USAF, USN, USMC, RAF
|
| 2001
|Joint Strike Fighter[4]{{rp|44–45}}
|
|-
|X-35C
|Lockheed Martin
|USAF, USN, USMC, RAF
|
|2000
|Joint Strike Fighter[4]{{rp|44–45}}
|
|-
|X-36
|McDonnell Douglas
|NASA
|
|1997
|28% scale tailless fighter[4]{{rp|46}}
|
|-
|X-37
|Boeing
|USAF, NASA
|
|2010
|Reusable orbital spaceplane[4]{{rp|47}}
|Drop test performed in 2006. Five flights since 22 April 2010. (Four launches on Atlas V; one on Falcon 9.)
|-
|X-38
|Scaled Composites
|NASA
|
|1998
|Lifting body Crew Return Vehicle[4]{{rp|48}}
|
|-
|X-39
|Unknown
|USAF
|Classified
|
|Future Aircraft Technology Enhancements (FATE) program.[4]{{rp|49}}
|Designation never officially assigned.[10]
|-
|X-40A
|Boeing
|USAF, NASA
|
|1998
|80% scale Space Maneuver Vehicle
X-37 prototype.[4]{{rp|50}}
|
|-
|X-41
|Unknown
|USAF
|Classified
|
|Maneuvering re-entry vehicle.[4]{{rp|51}}
|
|-
|X-42
|Unknown
|USAF
|Classified
|
|Expendable liquid propellant upper-stage rocket.[4]{{rp|52}}
|
|-
|X-43
Hyper-X
|Micro Craft
|NASA
|
|2001
|Hypersonic Scramjet[4]{{rp|53}}
|
|-
|X-44
MANTA
|Lockheed Martin
|USAF, NASA
|
|N/A
|F-22-based Multi-Axis No-Tail Aircraft thrust vectoring[4]{{rp|54}}
|Cancelled, never flew.
|-
|X-45
|Boeing
|DARPA, USAF
|

|2002
|Unmanned combat air vehicle (UCAV)[4]{{rp|55}}
|
|-
|X-46
|Boeing
|DARPA, USN
|
|N/A
|Unmanned combat air vehicle (UCAV).[4]{{rp|56}}
|Naval use. Cancelled, never flew.
|-
|X-47A Pegasus
X-47B
|Northrop Grumman
|DARPA, USN
|
|2003
|Unmanned combat air vehicle (UCAV)[4]{{rp|57}}
|Naval use.
|-
|X-48
|Boeing
|NASA
|
|2007
|Blended Wing Body (BWB)[4]{{rp|58}}
|
|-
|X-49
Speedhawk
|Piasecki
|US Army
|
|2007
|Compound helicopter
Vectored Thrust Ducted Propeller (VTDP) testbed.[11]
|
|-
|X-50
Dragonfly
|Boeing
|DARPA
|
|2003
|Canard Rotor/Wing[4]{{rp|60}}
|
|-
|X-51
Waverider
|Boeing
|USAF
|
|2010[12]
|Hypersonic scramjet[13]
|
|-
|X-52
| —
| —
| —
| —
| —
| Number skipped to avoid confusion with Boeing B-52 Stratofortress.[10]
|-
|X-53
|Boeing
|NASA, USAF
|
|2002
|Active Aeroelastic Wing[14]
|
|-
|X-54
|Gulfstream
|NASA
|
|N/A
|Low-noise supersonic transport[15] in development.
|
|-
|X-55
|Lockheed Martin
|USAF
|
|2009
|Advanced Composite Cargo Aircraft (ACCA)[16]
|
|-
|X-56
|Lockheed Martin
|USAF/NASA
|
|2012
|Active flutter suppression and gust load alleviation
|Part of the high-altitude, long-endurance (HALE) reconnaissance aircraft program.[17]
|-
|X-57
Maxwell
|ESAero/Tecnam
|NASA
|
|2016
|Low emission plane powered entirely by electric motors[18]
|Part of NASA's Scalable Convergent Electric Propulsion Technology Operations Research project[18] (SCEPTOR)
|-
|X-59 QueSST
|Lockheed Martin
|NASA
|
|2018
|Prototype quiet supersonic transport aircraft[19]
|
|-
|X-60A
|Generation Orbit Launch Services
|USAF
|
|2018
|Air-launched rocket for hypersonic flight research [20]
|
|}

See also

{{Portal|United States Air Force}}
  • Experimental aircraft
  • List of experimental aircraft
  • List of military aircraft of the United States

Notes

1. ^{{Cite web | title =X-Planes Experimental Aircraft | publisher =Federation of American Scientists |url= http://www.fas.org/programs/ssp/man/uswpns/air/xplanes/xplanes.html |accessdate= 2012-06-01}}
2. ^Miller 2001, p. 209
3. ^{{Citation | url = http://www.nasa.gov/centers/dryden/news/FactSheets/FS-085-DFRC.html | title = First Generation X-1 | publisher = NASA | place = Dryden | type=fact sheet | accessdate = May 8, 2010}}.
4. ^1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 Jenkins, Landis and Miller 2003
5. ^{{Citation|url=http://www.martin-baker.co.uk/getdoc/d25952ab-5881-4999-8593-6f7f196c8770/a_history_of_the_joint_strike_fighter_programme.aspx |title=A history of the Joint Strike Fighter Program |publisher=Martin-Baker |place=UK |date=January 2010 |deadurl=yes |archiveurl=https://web.archive.org/web/20101230143911/http://www.martin-baker.co.uk/getdoc/d25952ab-5881-4999-8593-6f7f196c8770/a_history_of_the_joint_strike_fighter_programme.aspx |archivedate=2010-12-30 |df= }}.
6. ^"D-558-I" NASA Dryden Fact Sheets. NASA. Accessed May 8, 2010.
7. ^Miller, J. The X-Planes, Speciality Press, 1983.
8. ^"X-16". Global security, accessed 11 May 2010.
9. ^Baugher 2007
10. ^1 2 Parsch 2009, "Missing Designations"
11. ^Parsch 2009, "DOD 4120.15-L"
12. ^{{Cite web| last = | first = | title = X-51 Waverider makes historic hypersonic flight| publisher = US Air Force Public Affairs| date = 26 May 2010| url = http://www.af.mil/news/story.asp?id=123206525| accessdate = 27 May 2010}}
13. ^"X-51 Scramjet Engine Demonstrator - WaveRider" globalsecurity.org. Accessed 2010-05-11.
14. ^Jordan 2006
15. ^412015-L
16. ^Kaufman 2009
17. ^Norris 2012
18. ^1 {{cite web|last1=Harrington|first1=J.D.|last2=Kamlet|first2=Matt|last3=Barnstorff|first3=Kathy|title=NASA Hybrid Electric Research Plane Gets X Number, New Name|url=https://www.nasa.gov/press-release/nasa-hybrid-electric-research-plane-gets-x-number-new-name|website=NASA.gov|publisher=NASA|accessdate=17 June 2016|date=17 June 2016}}
19. ^{{cite web |last1=Jim |first1=Banke |title=NASA’s Experimental Supersonic Aircraft Now Known as X-59 QueSST |url=https://www.nasa.gov/aero/nasa-experimental-supersonic-aircraft-x-59-quesst |website=NASA |accessdate=28 June 2018 |language=en |date=27 June 2018}}
20. ^{{cite web|url=http://generationorbit.com/u-s-air-force-designates-go1-hypersonic-flight-research-vehicle-as-x-60a/|title=U.S. Air Force Designates GO1 Hypersonic Flight Research Vehicle as X-60A|date=4 October 2018|website=generationorbit.com|accessdate=4 October 2018}}

References

{{Reflist}}

Bibliography

{{refbegin}}
  • {{cite web |url=http://www.joebaugher.com/ustransports/cdesig.html |title=Cargo Aircraft Designations |first=Joe |last=Baugher |author= |authorlink=Joe Baugher |year=2007 |accessdate=11 May 2010}}
  • {{cite book |last=Jenkins |first=Dennis R. |author2=Tony Landis |author3=Jay Miller |title=American X-Vehicles: An Inventory—X-1 to X-50 |url=https://history.nasa.gov/monograph31.pdf |accessdate=5 April 2010 |format=NASA Special Publication; PDF |edition=Centennial of Flight |series=Monographs in Aerospace History |volume=No. 31 |date=June 2003 |publisher=NASA History Office |location=Washington, DC |id=SP-2003-4531}}
  • {{cite web | url=http://www.wpafb.af.mil/news/story.asp?id=123035661 | title=Active Aeroelastic Wing flight research vehicle receives X-53 designation | first=Holly | last=Jordan | year=2006 | publisher=Wright-Patterson Air Force Base | accessdate=2010-05-11 | deadurl=yes | archiveurl=https://web.archive.org/web/20110605105552/http://www.wpafb.af.mil/news/story.asp?id=123035661 | archivedate=2011-06-05 | df= }}
  • {{cite web | url=http://www.af.mil/news/story.asp?id=123173711 | title=Advanced Composite Cargo Aircraft gets X-plane designation |first=Derek | last=Kaufman |year=2009 | publisher=United States Air Force | accessdate=2010-05-11}}
  • {{cite book |last=Miller |first=Jay |title=The X-Planes: X-1 to X-45 |edition=third |year=2001 |publisher=Motorbooks International |isbn=1-85780-109-1}}
  • {{cite web | url=http://www.designation-systems.net/usmilav/missing-mds.html | title="Missing" USAF/DOD Aircraft Designations | first=Andreas | last=Parsch |date=November 2009 | publisher=designation-systems.net | accessdate=2010-05-11}}
  • {{cite web |url=http://www.designation-systems.net/usmilav/412015-L(addendum).html |title=DOD 4120.15-L - Addendum, MDS Designators allocated after 19 August 1998 (until September 2009) |last=Parsch |first=Andreas |date=November 2009 |publisher=designation-Systems.Net | accessdate=2010-05-11}}
  • {{cite web | url=http://www.aviationweek.com/aw/generic/story_generic.jsp?channel=aerospacedaily&id=news/asd/2012/02/01/02.xml | title=USAF Reveals Latest X-Plane: X-56A| first=Guy| last=Norris|date=February 2012 |publisher=Aviation Week and Space Technology| accessdate=2012-02-11}}
{{refend}}

External links

{{Commons category|X-planes}}
  • [https://web.archive.org/web/20031220121649/http://www.centennialofflight.gov/essay/Evolution_of_Technology/early_X_planes/Tech27.htm Early X-planes]
  • [https://web.archive.org/web/20060928220628/http://lisar.larc.nasa.gov/BROWSE/xplane.html X-15 Videos by NASA]
{{X-planes}}{{lists of aircraft}}{{DEFAULTSORT:X-Planes, List Of}}

3 : Lists of aircraft by role|NASA aircraft|United States experimental aircraft

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