The XB-70 Valkyrie: A Supersonic Bomber's Rise and Fall
The XB-70 Valkyrie, a Mach 3 bomber designed for the U.S. Air Force, aimed to replace the B-52 but was ultimately canceled after a mid-air collision and changing military needs. Only two prototypes were built, with one destroyed in an accident. The surviving Valkyrie contributed to aeronautical research until 1969 and is now displayed at the National Museum of the U.S. Air Force.
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The XB-70 Valkyrie was a Mach 3 bomber developed by North American Aviation for the U.S. Air Force, intended to replace the B-52 Stratofortress. Its first flight was in September 1964, but the program ended after a 1966 mid-air collision destroyed one prototype.
Changing military tactics and the rise of Soviet surface-to-air missiles diminished the bomber's strategic value. Ultimately, the Air Force canceled the production of the B-70 in 1961, with only two prototypes built.
The surviving Valkyrie provided valuable research data until 1969 and is now housed at the National Museum of the U.S. Air Force.
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