GraphicsThe second generation X-1s used the same wing, horizontal tail, and XLR-11 rocket engine as the first generation aircraft, with...The NACA X-1E was the last of the X-1 series of aircraft, and its construction benefited from the lessons of...The NACA X-1E was the last of the X-1 series of aircraft, and its construction benefited from the lessons of...The Bell X-2 was a rocket-powered, swept-wing research aircraft designed to investigate the structural effects of aerodynamic heating as well...The Douglas X-3 Stiletto was the sleekest of the early experimental aircraft, but its research accomplishments were not those originally...The X-4 was designed to test a semi-tailless wing configuration at transonic speeds. Many engineers believed in the 1940s that...The Bell X-5 was built to test the feasibility of changing the sweep angle of an aircraft's wings in flight.In the joint X-15 hypersonic research program that NASA conducted with the Air Force, the Navy, and North American Aviation,...In the joint X-15 hypersonic research program that NASA conducted with the Air Force, the Navy, and North American Aviation,...Built for the Air Force by Martin, the X-24A was a bulbous-shaped aircraft, with three vertical fins at the rear...The X-24B's design evolved from a family of potential re-entry shapes proposed by the Air Force Flight Dynamics Laboratory, each...The X-24B's design evolved from a family of potential re-entry shapes proposed by the Air Force Flight Dynamics Laboratory, each...Two X-29 aircraft, featuring one of the more unusual designs in aviation history, were flown at NASA Ames-Dryden Flight Research...Two X-29 aircraft, featuring one of the more unusual designs in aviation history, were flown at NASA Ames-Dryden Flight Research...Two X-31 Enhanced Fighter Maneuverability demonstrators were test-flown during the early 1990s at NASA's Dryden Flight Research Center, Edwards, CA,...The X-33 was to have been a wedged-shaped subscale technology demonstrator prototype of a potential future Reusable Launch Vehicle (RLV)...NASA's X-34 program was initiated in 1996 to provide a low-cost advanced technology flight demonstration test bed vehicle for space...The NASA/Boeing X-36 Tailless Fighter Agility Research Aircraft successfully completed a 31-flight research program at NASA Dryden Flight Research Center,...The NASA/Boeing X-36 Tailless Fighter Agility Research Aircraft successfully completed a 31-flight research program at NASA Dryden Flight Research Center,...The X-38 project was a series of five prototype research vehicles developing technology to build and operate a space station...EG-0098-01 - Full color 3-view illustration of X-43AEG-0098-02 - X-43A black and white 3-view illustration.EG-0098-03 - Full color illustration of a conventional jet engine and the scramjet engine of the X-43A.EG-0098-04 - Full color illustration of an X-43A mission profile.EG-0098-05 - 3-view greyscale illustration of X-43A.EG-0098-06 - Diagram showing an X-43A flight scenario.EG-0098-07 - Black and white side view illustration of X-43-A.EG-0098-08 - 2-View Illustration of X-43-A mounted to Pegasus booster rocket.The B-70 Valkyrie, with a planned cruise speed of Mach 3 and operating altitude of 70,000 feet, was to be...The XF-88 originated from a 1946 United States Army Air Forces requirement for a long-range penetration fighter to escort bombers...The Republic XF-91 Thundercepter was a single-place fighter-type airplane powered by a General Electric J47-GE-17 turbojet engine. The wing had...By the late 1930s, it was clear that traditional straight wings and relatively thick airfoils were not suitable for flight...A North American P-51D Mustang (the P meaning pursuit), redesignated as an F-51 Mustang (with the F standing for fighter),...The two Bell XV-15 Tiltrotor aircraft were involved in limited research at the Hugh L. Dryden Flight Research Center in...Flight tests were conducted by NASA with the basic YAV-8B to establish reaction control bleed flow in low-speed flight to...The YF-12 "Blackbird" was an experimental fighter-interceptor version of the Lockheed A-12 reconnaissance aircraft. In Air Force flight tests on...The Convair YF-102 Delta Dagger interceptor was a scaled-up version of the delta-wing XF-92A.The YO-3A aircraft was originally a Schweizer SGS-2-23 sailplane.
