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 ...

"This image makes the invisible visible — the first American made civil supersonic jet breaking the sound barrier." ...

A "son of Concorde" aircraft that may one day fly from New York to London in 1.5 hours has reached supersonic speeds. An incredible image shows Boom Supersonic's XB-1 jet breaking the sound barrier.

NASA teams on the ground used Schlieren photography to capture the shock waves around Boom Supersonic’s demonstrator aircraft XB-1 as it pushed through the air. “This image makes the invisible ...