The High Alpha Research Vehicle is a modified American

McDonnell Douglas F/A-18 Hornet The McDonnell Douglas F/A-18 Hornet is an all-weather supersonic, twinjet, twin-engine, carrier-based aircraft, carrier-capable, Multirole combat aircraft, multirole combat aircraft, designed as both a Fighter aircraft, fighter and attack airc ...

used by

NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States ...

in a three-phase program investigating controlled flight at high alpha (

angle of attack In fluid dynamics, angle of attack (AOA, α, or \alpha) is the angle between a Airfoil#Airfoil terminology, reference line on a body (often the chord (aircraft), chord line of an airfoil) and the vector (geometry), vector representing the relat ...

) using

thrust vectoring Thrust vectoring, also known as thrust vector control (TVC), is the ability of an aircraft, rocket or other vehicle to manipulate the direction of the thrust from its engine(s) or motor(s) to Aircraft flight control system, control the Spacecra ...

, modifications to the flight controls, and with actuated forebody strakes. The program lasted from April 1987 to September 1996. NASA reported that in one phase of the project,

Armstrong Flight Research Center The NASA Neil A. Armstrong Flight Research Center (AFRC) is an aeronautical research center operated by NASA. Its primary campus is located inside Edwards Air Force Base in California and is considered NASA's premier site for aeronautical rese ...

"research pilots William H. "Bill" Dana and Ed Schneider completed the envelope expansion flights in February 1992. Demonstrated capabilities included stable flight at approximately 70 degrees angle of attack (previous maximum was 55 degrees) and rolling at high rates at 65 degrees angle of attack. Controlled rolling would have been nearly impossible above 35 degrees without vectoring." Performance figures were not listed for other phases. The aircraft is now on display at the

Virginia Air and Space Center The Virginia Air and Space Science Center is a museum and educational facility in Hampton, Virginia that also serves as the visitors center for NASA's Langley Research Center and Langley Air Force Base. The museum also features an IMAX digit ...

Hampton, Virginia Hampton is an independent city (United States), independent city in the Commonwealth of Virginia in the United States. The population was 137,148 as of the 2020 United States census, 2020 census, making it the List of cities in Virginia, seve ...

See also

References

Further reading