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Encounters: The UFO Phenomenon, Exposed!
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Encounters - The UFO Phenomenon, Exposed (1995).iso
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1995-10-20
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HIMAT (HIGHLY MANEUVERABLE AIRCRAFT TECHNOLOGY)
The HiMAT (Highly Maneuverable Aircraft Technology) subscale research
vehicles flown by the NASA Dryden Flight Research Center from mid 1979
to Jan. 1983 demonstrated advanced fighter aircraft technologies that
could be used in the development of future high-performance military
aircraft.
Two vehicles were used in the research program conducted jointly by
NASA and the Air Force Flight Dynamics Laboratory, Wright-Patterson
AFB, OH. They provided data on the use of composites, aeroelastic
tailoring, close-coupled canards, and winglets, and they investigated
the interaction of these then-new technologies upon each other.
The two vehicles were flown a total of 26 times during the three and
one-half year program.
HiMAT Design
Designed with rear mounted swept wings and a forward controllable
canard coupled to the flight control system, the HiMAT vehicles had
twice the turning capability of military fighters.
About 30 percent of the materials used to build each HiMAT were
composites. These materials -- glass fibers and graphites -- gave the
structures additional strength for increased maneuverability and high
"G" loads encountered during their flights.
About one-half the size of a standard manned fighter and powered by a
small jet engine, the HiMAT vehicles were launched from NASA's B-52
carrier aircraft at an altitude of about 45,000 ft. They were flown
remotely by a NASA research pilot from a ground station with the aid
of a television camera mounted in the HiMAT cockpits. When the
research portion of a HiMAT flight ended, the vehicle was landed
remotely on the dry lakebed adjacent to Dryden.
Flown Remotely
Control techniques used by pilots at the ground-based cockpit to fly
the HiMATs were much the same as those used to fly and land a
conventional manned aircraft.
The HiMATs were flown remotely because it was an established safe way
to test advanced technologies without subjecting a pilot to a
high-risk environment. Remotely Piloted Research Vehicles (RPRVs) like
HiMAT could also be flown more economically than larger manned
vehicles.
Each HiMAT had a digital fly-by-wire control system. Pilot commands
were fed to an on-board computer which sent electrical commands to the
flight control surfaces.
The vehicles were 22 ft long and had a wing span of just under 16 ft.
They weighed 3,400 lb at launch, and were powered by a General
Electric J-85 turbojet producing 5,000 lb of thrust.
The supersonic research vehicles had a top speed of Mach 1.4.
HiMAT Technologies
Technologies tested on the HiMAT vehicles appearing later on other
aircraft include the extensive use of composites common now on
military and commerical aircraft; the rear-mounted wing and forward
canard configuration used very successfully on the X-29 research
aircraft flown at Dryden; and winglets, now used on many private and
commercial aircraft to lessen wingtip drag and enhance fuel savings.
One of the two HiMAT vehicles is at Dryden. The other belongs to the
National Air and Space Museum, Smithsonian Institution in Washington,
DC.
_________________________________________________________________
Image: Dryden EAO Logo Icon
Don Nolan
NASA Dryden Flight Research Center
Edwards, Calif. 93523
(805) 258-3447
Don_Nolan@qmgate.dfrf.nasa.gov
Modified: Feburary 2, 1994
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