X-31 Enhanced Fighter Maneuverability DemonstratorX-31 team members perform an engine fit check on the X-31 Enhanced Fighter Maneuverability demonstrator aircraft in a hangar at...U.S. and German personnel of the X-31 Enhanced Fighter Maneuverability Technology Demonstrator aircraft program removing the right wing of the...The X-31 Enhanced Fighter Maneuverability Technology Demonstrator Aircraft, based at the NASA Dryden Flight Research Center, Edwards, California, begins rolling...The three thrust-vectoring aircraft at Edwards, California, each capable of flying at extreme angles of attack, cruise over the California...The right wing of the X-31 Enhanced Fighter Maneuverability Technology Demonstrator Aircraft is seen here being put into a shipping...A collection of NASA's research aircraft on the ramp at the Dryden Flight Research Center in July 1997: X-31, F-15...This is an artist's computer-enhanced concept of a semi-tailless X-31 Enhanced Fighter Maneuverability Aircraft in flight.One of two X-31 Enhanced Fighter Maneuverability Demonstrator aircraft, flown by an international test organization at NASA's Dryden Flight Research...The X-31 Enhanced Fighter Maneuverability aircraft in flight over California's Mojave desert during a 1992 test flight.A group photo of research aircraft at NASA's Ames/Dryden Flight Research Facility in 1993 (redesignated the Dryden Flight Research Center...The X-31 Enhanced Fighter Maneuverability Technology Demonstrator Aircraft was secured inside the fuselage of an Air Force Reserve C-5 transport.After being flown in the Paris Air Show, the X-3 was off-loaded from an Air Force Reserve C-5 transport after...The second X-31 (Bu. No. 164585) Enhanced Fighter Maneuverability (EFM) aircraft flew over Edwards Air Force Base, CA.The noseboom on the X-31 shows the Kiel air data probe angled at 10 degrees to better align the tip...The X-31 aircraft on a research mission from NASA's Dryden Flight Research Center, Edwards, CA, was flying nearly perpendicular to...The X-31 aircraft on a research mission from NASA's Dryden Flight Research Center, Edwards, CA, is flying nearly perpendicular to...A head-on view of the X-31 Enhanced Fighter Maneuverability Demonstrator aircraft (right), accompanied by a NASA F/A-18 chase aircraft during...The X-31 aircraft, on a research mission from NASA's Dryden Flight Research Center, Edwards, CA, is flying nearly perpendicular to...One of two X-31 Enhanced Fighter Maneuverability Demonstrator aircraft, flown by an international test organization at NASA's Dryden Flight Research...The X-31 aircraft, on a research mission from NASA's Dryden Flight Research Center, Edwards, CA, is flying nearly perpendicular to...The Kiel air data probe on the noseboom on the X-31 aircraft shows the orifices used to collect air pressure...The first X-31 (Bu. No. 164584) flew over Edwards Air Force Base, CA, in 1993.One of two X-31 Enhanced Fighter Maneuverability Demonstrator aircraft, flown by an international test organization at NASA's Dryden Flight Research...