Boom: America’s answer to Concorde completes its first supersonic flight
Boom Supersonic, the American company building what promises to be the world’s fastest airliner, broke the sound barrier for ...
Boom's Supersonic jet breaks sound barrier for first time since Concorde
Boom's Supersonic XB-1 demonstrator aircraft is the first civil aircraft to break the sound barrier since the Concorde. | ITV ...