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Story highlights. 1  Chuck Yeager was the first test pilot to break the sound barrier. 2  In 1947, he flew past Mach 1 after being dropped from a B-29 bomber at 45,000 feet. 3  Yeager said he laid down a pretty good sonic boom over Edwards Air Force Base.
Warner Robins, Georgia (CNN)Al Joersz and George Morgan remember the day they joined the ranks of the fastest men alive. In 1976 they smashed the world aviation speed record by blasting across the Western United States in America's super spy plane, the Lockheed SR-71. Official speed: 2,193 mph. It wasn't supposed to be that big of a deal, Joersz said on the phone from his home in Temple, Texas.