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Experimental XB-1 aircraft goes supersonic for the first time
Boom Supersonic's next-generation XB-1 passenger plane 1 step away from breaking the sound barrier
Boom Supersonic's XB-1 jet sets new speed record during 7th test flight
Boom Supersonic's XB-1 prototype aces 2nd test flight (photos)
Boom's XB-1 test plane gets FAA green light for supersonic flight
