The XB-1 demonstrator has broken the speed of sound, hitting Mach 1.1. It is the first civil supersonic aircraft in US history and the first to do so since Concorde was retired in 2003. That was an ...
THE 'Son of Concorde' XB-1 jet has successfully reached ... where Chuck Yeager became the first person to fly faster than the speed of sound in 1947, in his Bell X-1 plane.
THE 'Son of Concorde' XB-1 jet is set to take off on ... where Chuck Yeager became the first person to fly faster than the speed of sound in 1947, in his Bell X-1 plane. On the ground, Boom's ...