Did you know? On 6 December 1959, the XF4H-1 performed a zoom climb to a world record 98,557 ft Commander Lawrence E. Flint Jr, accelerated his aircraft to Mach 2.5 (1,650 mph) at 47,000 ft and climbed to 90,000 ft at a 45° angle. He then shut down the engines and glided to the peak altitude. As the aircraft fell through 70,000 ft Flint restarted the engines and resumed normal flight.
Did you know? On 6 December 1959, the XF4H-1 performed a zoom climb to a world record 98,557 ft Commander Lawrence E. Flint Jr, accelerated his aircraft to Mach 2.5 (1,650 mph) at 47,000 ft and climbed to 90,000 ft at a 45° angle. He then shut down the engines and glided to the peak altitude. As the aircraft fell through 70,000 ft Flint restarted the engines and resumed normal flight.