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Rockwell HiMAT

From Wikipedia, the free encyclopedia
Experimental American aircraft design
Rockwell HiMAT
HiMAT in flight
General information
TypeExperimentalremotely piloted aircraft
National originUnited States
ManufacturerRockwell International
StatusOn display
Primary userNASA
Number built2
History
Manufactured1975-1979
First flightJuly 27, 1979 (1979-07-27)
RetiredJanuary 1983 (1983-02)

TheRockwell RPRV-870 HiMAT (Highly Maneuverable Aircraft Technology) is an experimentalremotely piloted aircraft that was produced for aNASA program to develop technologies for futurefighter aircraft. Among the technologies explored were close-coupledcanards, fullydigital flight control (including propulsion),composite materials (graphite andfiberglass), remote piloting,synthetic vision systems,winglets, and others.

Two aircraft were produced byRockwell International. Their first flights took place in 1979, and testing was completed in 1983.

Design and development

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The HiMATs were remotely piloted, as the design team decided that it would be cheaper and safer to not risk a pilot's life during the experiments. This also meant that noejection seat would have to be fitted. The aircraft was flown by a pilot in a remote cockpit, and control signals up-linked from the flight controls in the remote cockpit on the ground to the aircraft, and aircraft telemetry downlinked to the remote cockpit displays. The remote cockpit could be configured with either nose camera video or with a 3D synthetic vision display called a "visual display".[1] The aircraft were launched from aB-52 Stratofortress at altitude. There was also aTF-104G Starfighter chase plane with a set of backup controls which could take control of the HiMAT in the event that the remote pilot on the ground lost control.[2]

Advances in digital flight control gained during the project contributed to theGrumman X-29 experimental aircraft, and composite construction are used widely on both commercial and military aircraft.[2]

The aircraft's initial concept included a wedge-shaped exhaust nozzle with 2Dthrust vectoring.[3]

Aircraft on display

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The two HiMAT aircraft are now on display, one at theNational Air and Space Museum and the other at theArmstrong Flight Research Center.[4]

Specifications

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Data from Boeing.com[5][6]

General characteristics

  • Crew: None
  • Length: 22 ft 6 in (6.86 m)
  • Wingspan: 15 ft 7 in (4.75 m)
  • Height: 4 ft 4 in (1.31 m)
  • Empty weight: 3,370 lb (1,529 kg)
  • Gross weight: 4,030 lb (1,828 kg)
  • Powerplant: 1 ×General Electric J85-GE-21 turbojet

Performance

  • Maximum speed: 1,218 mph (1,960 km/h, 1,058 kn)
  • Maximum speed: Mach 1.6

Gallery

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  • HiMAT aircraft at the National Air and Space Museum
    HiMAT aircraft at the National Air and Space Museum
  • HiMAT Remote Cockpit with Synthetic Vision Display
    HiMAT Remote Cockpit with Synthetic Vision Display
  • Initial mockup of HiMAT with two dimensional thrust vectoring
    Initial mockup of HiMAT with two dimensionalthrust vectoring

See also

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References

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  1. ^Sarrafian, Shahan K. (August 1984).Simulator Evaluation of a Remotely Piloted Vehicle Lateral Landing Task Using a Visual Display.NASA.OCLC 11977763. Technical memorandum 85903; Accession number N84-29885.
  2. ^abGibbs, Yvonne, ed. (February 28, 2014)."NASA Armstrong Fact Sheet: Highly Maneuverable Aircraft Technology". NASA. FS-025-DFRC. RetrievedJune 12, 2016.
  3. ^"NACA/NASA Langley: Celebrating 100 Years". February 3, 2016.
  4. ^Smith, Yvette, ed. (April 1, 2009)."April Fool! Look What's in Kevin Petersen's Parking Space!". NASA. Archived fromthe original on April 17, 2021. RetrievedMay 25, 2012.
  5. ^"HiMAT Research Vehicle: Historical Snapshot".Boeing. RetrievedMay 21, 2014.
  6. ^Simonsen, Erik (May 2007)."Turning time ahead"(PDF).Boeing Frontiers:8–9.

Further reading

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External links

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Wikimedia Commons has media related toNASA HiMAT.
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