On Oct. 14, 1947, an aircraft broke the sound barrier for the first time, a milestone some had thought would never be reached.
The First Bell X-1, "Glamorous Glennis" which broke the sound barrier with test pilot Chuck Yeager at the controls in October 1947, went on to survive a total of 78 flights before its retirement to the Smithsonian Institution's National Air & Space Museum in Washington, D.C.
