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Twelve pilots flew the X-15 over the course of its career. Scott Crossfield and William Dana flew the X-15 on its first and last free flights, respectively. Joseph Walker set the program's top two altitude records on its 90th and 91st free flights (347,800 and 354,200 feet, respectively), becoming the only pilot to fly past the Kármán line, the 100 kilometer, FAI-recognized boundary of outer ...
The first X-15 flight was an unpowered glide flight by Scott Crossfield, ... Neil A. Armstrong: NASA 1960 [32] 7 0 0 5.74 3,989 39.2 Scott Crossfield:
During his sixth X-15 flight on April 20, 1962, Armstrong was testing the MH-96 control system when he flew to a height of over 207,000 feet (63 km) (the highest he flew before Gemini 8). He held up the aircraft nose during its descent to demonstrate the MH-96's g-limiting performance, and the X-15 ballooned back up to around 140,000 feet (43 km).
The X-15 was piloted by astronaut Robert Michael White to an altitude of 95.9 km (59.6 mi) surpassing the U.S. definition of space. Thus it became the first spaceflight of a spaceplane and a reusable spacecraft. The X-15 was also NASA's first space vehicle (the Mercury capsule flew into space first, but the X-15 was airborne before Big Joe 1).
AFRC operates some of the most advanced aircraft in the world and is known for many aviation firsts, including supporting the first crewed airplane to exceed the speed of sound in level flight , [2] highest speed by a crewed, powered aircraft (North American X-15), [3] [4] the first pure digital fly-by-wire aircraft (F-8 DFBW), [5] and many others.
X-15 Flight 3-65-97, also known as X-15 Flight 191 (being the 191st free flight of the X-15), was a sub-orbital spaceflight of the North American X-15 experimental spaceplane, carrying seven experiments to a peak altitude of 266,000 feet (50.4 mi; 81 km; 43.8 nmi), above NASA's definition of the start of space at 50 miles (80 km) but below the Kármán line definition at 62 miles (100 km).
The nine astronauts were Neil Armstrong, Frank Borman, Pete Conrad, Jim Lovell, James McDivitt, Elliot See, Tom Stafford, Ed White, and John Young. The Next Nine were the first astronaut group to include civilian test pilots: See had flown for General Electric, and Armstrong had flown the X-15 rocket-powered aircraft for NASA. Six of the nine ...
X-15 Flight 91 was an August 22, 1963 American crewed sub-orbital spaceflight, and the second and final flight in the program to fly above the Kármán line, which was previously achieved during Flight 90 a month earlier by the same pilot, Joseph A. Walker. It was the highest flight of the X-15 program.