North American XB 70 Valkyrie. 70, 000 feet and 3 x the speed of sound

This video includes take off with 6 afterburners, a missed approach and a touch and go landing. The North American Aviation XB70 Valkyrie was the prototype of the proposed B70 nucleararmed deeppenetration strategic bomber for the United States Air Force s Strategic Air Command. Designed in the late 1950s, the Valkyrie was a large sixengined aircraft able to fly Mach 3+ at an altitude of 70, 000 feet, which would have allowed it to avoid interceptors. The Valkyrie was designed to be a highaltitude Ma