There were 199 flights over Nevada during the X-15 program. It created 8 astronauts due to flights exceeding the altitude of 50 miles. The official world record for fastest manned, powered aircraft was set in October of 1967 with a speed of Mach 6.72. It remains unchallenged to this day.
Rock this rocket plane with the X-15 Tank in red, white, and blue on white or black!