MOJAVE, Calif. - XB-1 became the first American-made private supersonic jet to fly faster than the speed of sound as Boom Supersonic works toward building a fleet of supersonic jets for commercial air ...
Less than a year from the maiden flight, the first civil supersonic jet made by a private company aims to demonstrate technologies to pave the way for the return of supersonic airliners. The XB-1 ...
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