The first official record of a manned supersonic flight was Charles Yeager flying the Bell X-1 on October 14, 1947. There is a "plausible" claim that George Welch actually beat Yeager by two weeks in...
Chuck Yeager is credited with piloting the first supersonic flight on October 14, 1947, flying the experimental X-1 "Glamorous Glennis" achieving Mach 1 at an altitude of 45,000 feet over Edwards Air...