
Test Flight
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.
Experimental hypersonic rocket-powered aircraft.
Mar 10, 1959 — Dec 12, 1968
USAF Mission
#158
Pad Launch
#5
Location Launch
#11
Aug 22, 1963, 6:05 PM
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