The countdown has begun for the XB-1’s “historic” first supersonic test flight that should break the sound barrier, according ...

Boom Supersonic's XB-1 demonstrator craft could become the first commercial jet to break the sound barrier since Concorde ...

The aircraft’s shape would stifle the sonic boom, making it sound more like the thunk of a car door. If a pilot study confirms that NASA’s design successfully reduces the disruptive effects ...

The XB-1 prototype accelerated smoothly to reach as fast as Mach 1.11 at about 35,000 feet at 11:33 a.m., 11:38 a.m. and ...

“As the aircraft maintains supersonic speed, all the sound waves that should’ve dispersed in front of it pile up and form shock waves. When these pressure waves combine, a single shock wave forms,” ...

The single-seat, three-engine jet is the first independently developed plane to exceed Mach 1 in level flight.

Putting the aircraft under this strain at transonic speed, just below the speed of sound, demonstrates the ... number until we inevitably make that sonic boom," Nick Sheryka, c hief flight ...

An aircraft developed by Boom Supersonic became the first independently funded jet to break the sound barrier this week. The ...