The North American X-15 flew 199 research missions from 1959 to 1968, setting records that still stand and building the engineering foundation for every U.S. crewed spacecraft that followed.
The North American X-15 set speed and altitude records that still stand today while generating the hypersonic research data that made Apollo and the Space Shuttle possible.
On August 6, 1955, Boeing test pilot Tex Johnston barrel-rolled a 100,000-pound prototype jet over Lake Washington - and in doing so, sold the airplane that launched the jet age.
The North American X-15 holds the all-time speed record for a winged aircraft and sent eight pilots to space - records that have stood for nearly sixty years.
The North American X-15 flew to Mach 6.7 and the edge of space, pioneering the hypersonic and reentry technology behind every spacecraft that followed.
Radio Hangar explores Tex Johnston Rolls the Dash Eighty, the Day Boeing's Chief Test Pilot Barrel-Rolled a Jet Transport Over Lake Washington to Sell the Jet Age.
On August 7, 1955, Boeing test pilot Tex Johnston rolled a prototype jet airliner twice over Lake Washington, executing one of the most consequential demonstrations in aviation history.