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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, on 8 June 1959. Crossfield also piloted the first powered flight on 17 September 1959, and his first flight with the XLR-99 rocket engine on 15 November 1960. Twelve test pilots flew the X-15.
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.
X-15 Flight 90 pilot, Joe Walker 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.
Flight 188 was the 53rd flight for X-15 Number 2 and the 5th flight as the modified X-15A-2. The X-15A-2 used a reaction Motors XLR99 engine by the Reaction Motors Division of Thiokol Chemical Company. William J. Knight was a test pilot for the United States Air Force and NASA. The X-15A-2 Number 2 was the only X-15 to have the external tank ...
Flight 35 of the North American X-15 was a test flight conducted by NASA and the US Air Force on March 30, 1961. [1] The X-15 was piloted by Joseph A. Walker to an altitude of 169,600 feet (51.7 km; 32.12 mi) surpassing the stratopause. [2] Thus Walker became the first human to reach the mesosphere. [3]
X-15 Flight 188; X-15 Flight 3-65-97; X. X-15 Flight 35 This page was last edited on 10 July 2021, at 07:03 (UTC). Text is available under the Creative Commons ...
The flight was made in the X-15A-2, the second of three planes in the X-15 fleet. Two weeks later on October 17, Knight flew X-15 Flight 190 , reaching a maximum altitude above 50 miles. This qualified him as an astronaut according to the United States definition of the boundary of space.