21 Jan 1949, Los Angeles, California, USA — 01/21/1949-Los Angeles, CA.: SUPERSONIC SENIOR. Air Force Captain, Charles Yeager, 25, has spent more time flying supersonic jet planes than anyone else. Slowed down long enough to talk about speed of sound flying, Jan.18,Yeager has spent approx. 20 minutes in the supersonic. — Image by © Bettmann/CORBIS