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North American X-15A-2 Mockup

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Serial Number: “56-6671”

Markings: U.S. Air Force/NASA, Edwards Air Force Base, 1968


The X-15 is one of the most successful aircraft of the X-Plane series of experimental aircraft. Designed in the late 1950s to explore high altitudes and high speeds the X-15 would fly 199 times and set both altitude and speed records. Eventually the X-15 flew high enough to win its pilots Astronaut wings. It also set the world's absolute speed record by flying over six times the speed of sound.

Technical Specifications
Wingspan 22 ft 4 in
Length 50 ft
Height 13 ft
Weight 56,130 lbs (loaded)
Maximum Speed 4,520 mph
Service Ceiling 354,200 ft
Range 275 miles
Engines 1 Thiokol XLR99-RM-2 rocket engine 57,850 lbs thrust
Crew 1

On loan from the National Museum of the United States Air Force, Wright-Patterson AFB, Ohio
Location: Space Gallery