THIS IS THE WORLD'S FASTEST AND LARGEST MEGA BOMBER YOU HAVE NEVER SEEN

THIS IS THE WORLD'S FASTEST AND LARGEST MEGA BOMBER YOU HAVE NEVER SEEN The North American Aviation XB-70 Valkyrie was the prototype version of the planned B-70 nuclear-armed, deep-penetration strategic bomber for the United States Air Force Strategic Air Command. In the late 1950s, North American Aviation designed the Valkyrie as a large, six-engine bomber capable of reaching Mach 3+ while flying at 70,000 feet (21,000 m). At these speeds, it was expected that the B-70 would be almost immune to intercept

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