X-15 | Flight 91

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.

Mission Details

  • Launch date: August 22, 1963 at 06:05 PM UTC
  • Launch vehicle: North American X-15
  • Operator: United States Air Force
  • Launch site: Air launch to Suborbital flight
  • Mission type: Test Flight