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Flight 90 of the North American X-15 was a research flight conducted by NASA and the US Air Force on July 19, 1963. It was the first of two X-15 missions that passed the 100-km high Kármán line, the FAI definition of space, along with Flight 91 the next month. The X-15 was flown by Joseph A. Walker, who flew both X-15 spaceflights over the ...
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 ... Twelve test pilots flew the X-15. Among these were Neil Armstrong, ... Flight 90: 19 July 1963
He flew in three versions of the Bell X-1: the X-1#2 (two flights, first on August 27, 1951), X-1A (one flight), X-1E (21 flights). When Walker attempted a second flight in the X-1A on August 8, 1955, the rocket aircraft was damaged in an explosion just before being launched from the JTB-29A mothership. Walker was unhurt, though, and he climbed ...
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).
X-15 Flight 90: 1963 July 26 USA First geosynchronous satellite: Syncom 2: 1964 August 19 USA First geostationary satellite: Syncom 3: 1964 October 12 USSR First spaceflight to carry more than one crewman into orbit (3) Voskhod 1: 1965 March 18 USSR First extra-vehicular activity ("space walk") Voskhod 2: 1965 March 23 USA First piloted ...
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Among the twelve X-15 pilots, only Neil Armstrong and Joe Engle would travel to space following their participation in the program. Eleven of the thirteen flights above 50 miles were made in the X-15-3, the program's third plane; only two were made in the X-15-1, its first.