But while the successful test flight of XB-1 shows that supersonic flight without sonic booms is technically feasible, the next phase is making it economically feasible. Right now, both subsonic and ...
One of the Air Force's two secret X-37B space planes announced its re-entry to Earth with a loud sonic boom. The plane is part of the Air Force's X-37 program. Not much is known about this program ...
PARIS (AP) — A tennis player at the French Open was visibly startled by a sonic boom Wednesday just ... police revealed the cause of the noise: a fighter plane breaking the sound barrier.