Flight 91 - Space launch mission detailed information
Flight 91 91
22 AUG 1963
United States Air Force
Edwards Air Force Base
X-15 Flight 91 was a 1963 American crewed mission, and the second and final flight in the program to achieve sub-orbital spaceflight—a flight over 100 km in altitude. It was the highest flight of the X-15 program.
North American X-15
The North American X-15 was a hypersonic rocket-powered aircraft operated by the United States Air Force and the National Aeronautics and Space Administration as part of the X-plane series of experimental aircraft.