the XB-70 featured an escape capsule, the door of which crushed the pilot’s arm while closing. The lone surviving XB-70 would be retired for good just three years later, in 1969.
The XB-70 Valkyrie could cruise at Mach 3, riding its own shock wave to do so, and could hit altitudes of 70,000 feet. But the XB-70 Valkyrie never went into full-scale production ...
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