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Faster Than Sound

Posted on Sun, June 5, 2016
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On October 14, 1947, Air Force Captain Charles E. Yeager flew this experimental Bell X-1 on the first flight faster than the speed of sound. He reached a speed of 1127 kilometers per hour (700 miles per hour), or Mach 1.06 at an altitude of 13,000 meters (43,000 feet).

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