Engineering:Rockwell HiMAT
| Rockwell HiMAT | |
|---|---|
| |
| HiMAT in flight | |
| Role | Experimental remotely piloted aircraft |
| National origin | United States |
| Manufacturer | Rockwell International |
| First flight | July 27, 1979 |
| Retired | January 1983 |
| Status | On display |
| Primary user | NASA |
| Produced | 1975-1979 |
| Number built | 2 |
The Rockwell RPRV-870 HiMAT (Highly Maneuverable Aircraft Technology) is an experimental remotely piloted aircraft that was produced for a NASA program to develop technologies for future fighter aircraft. Among the technologies explored were close-coupled canards, fully digital flight control (including propulsion), composite materials (graphite and fiberglass), remote piloting, synthetic vision systems, winglets, and others.
Two aircraft were produced by Rockwell International. Their first flights took place in 1979, and testing was completed in 1983.
Design and development
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 no ejection 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 a B-52 Stratofortress at altitude. There was also a TF-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 the Grumman 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 2D thrust vectoring.[3]
Aircraft on display
The two HiMAT aircraft are now on display, one at the National Air and Space Museum and the other at the Armstrong Flight Research Center.[4]
Specifications
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 J85-21 turbojet
Performance
- Maximum speed: 1,218 mph (1,960 km/h, 1,058 kn)
- Maximum speed: Mach 1.6
Gallery
HiMAT aircraft at the National Air and Space Museum
HiMAT Remote Cockpit with Synthetic Vision Display
Initial mockup of HiMAT with two dimensional thrust vectoring
See also
References
- ↑ Sarrafian, Shahan K. (August 1984). Simulator Evaluation of a Remotely Piloted Vehicle Lateral Landing Task Using a Visual Display. NASA. Technical memorandum 85903; Accession number N84-29885. OCLC 11977763. https://ntrs.nasa.gov/search.jsp?R=19840021816.
- ↑ 2.0 2.1 Gibbs, Yvonne, ed (February 28, 2014). "NASA Armstrong Fact Sheet: Highly Maneuverable Aircraft Technology". NASA. http://www.nasa.gov/centers/armstrong/news/FactSheets/FS-025-DFRC.html.
- ↑ "NACA/NASA Langley: Celebrating 100 Years". February 3, 2016. https://crgis.ndc.nasa.gov/historic/Test_328:_HiMAT_Wedge_Nozzle.
- ↑ Smith, Yvette, ed (April 1, 2009). "April Fool! Look What's in Kevin Petersen's Parking Space!". NASA. http://www.nasa.gov/topics/people/features/april1.html.
- ↑ "HiMAT Research Vehicle: Historical Snapshot". Boeing. http://www.boeing.com/history/products/himat-research-vehicle.page.
- ↑ Simonsen, Erik (May 2007). "Turning time ahead". Boeing Frontiers: 8–9. http://www.boeing.com/news/frontiers/archive/2007/may/i_history.pdf.
Further reading
- Kempel, Robert W.; Earls, Michael R. (1988). Flight Control Systems Development and Flight Test Experience with the HiMAT Research Vehicles. NASA. Technical paper 2822; Accession number N89-15929. OCLC 22037291. https://ntrs.nasa.gov/search.jsp?R=19890006558.
- Duke, Eugene L.; Jones, Frank P.; Roncoli, Ralph B. (1986). Development and Flight Test of an Experimental Maneuver Autopilot for a Highly Maneuverable Aircraft. NASA. Technical report 2618; Accession number N88-21153. OCLC 21916352. https://ntrs.nasa.gov/search.jsp?R=19880011769.
External links
- HiMAT Research Vehicle at Boeing.com
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