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A Supersonic First Credit: NASAThe first aircraft acknowledged to travel at supersonic speeds was the U.S.-built Bell X-1 rocket-powered experimental aircraft on a flight conducted on Oct. 14, 1947 by the U.S. Air Force. Piloted by Maj. Chuck Yeager, the aircraft flew faster than the speed of sound by breaking Mach 1. The aircraft reached Mach 1.06 about 700 miles per hour. Next Wave Of Supersonic Research Aircraft Credit: nationalmuseum.af.milFollowing the Bell X-1, the next two decades saw several nations developing supersonic research aircraft programs. These mostly centered on fighter jets, which included further U.S.-backed efforts such as the F4D Skyray, the F-100 Super Sabre (pictured) and the F-101 Voodoo programs. In Europe, France, the UK, Sweden and Germany also developed attack aircraft able to fly at supersonic speeds, while the likes of Russia, China and Canada also advanced their own programs.

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