On the morning of 27 September, 1956, Captain Milburn G. "Mel" Apt flying a Bell X-2 research aircraft, became the first man to exceed Mach 3, reaching Mach 3.2 (3,370 km/h) at 19,960 m. Read more
On the morning of 27 September, 1956, Captain Milburn G. "Mel" Apt flying a Bell X-2 research aircraft, became the first man to exceed Mach 3, reaching Mach 3.2 (3,370 km/h) at 19,960 m.