The XB-70 Valkyrie was designed to fly at Mach 3 and altitudes no other bomber could reach. Intended as a strategic deterrent, it was ultimately sidelined by changing defense strategies and the rise ...
The XB-70 Valkyrie was the crown jewel of American aviation - a six-engine, Mach 3 bomber capable of flying at 70,000 feet. But its unmatched speed became its undoing, as new Soviet missiles rendered ...
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