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The XB-70 Valkyrie was designed to rewrite the rules of flight—cruising at Mach 3 and soaring above 70,000 feet. But its path ...
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XB-70 Valkyrie: America’s Supersonic Bomber—What Went Wrong?Conceived as the crown jewel of America’s Cold War air strategy, the XB-70 Valkyrie was a technological masterpiece: a Mach 3 ...
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