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The Air Force’s ‘Shockwave’ Mach 3 XB-70 Valkyrie Bomber Would Have Been A Mistake

Key Points and Summary - The North American XB-70 Valkyrie was a "technical marvel" of the 1950s—a Mach 3, 70,000-foot nuclear bomber designed to replace the B-52. -It used a "revolutionary" principle ...
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The XB-70 Valkyrie: The World’s Fastest Bomber That Never Was

Designed to cruise at Mach 3 and outrun any Soviet defense, the XB-70 Valkyrie was supposed to be the future of America's bomber fleet. With cutting-edge technology and revolutionary aerodynamics, it ...