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

American company Boom achieved a milestone Tuesday as its XB-1 aircraft exceeded the speed of sound for the first time during a supersonic test flight. The last flight of a supersonic airliner, ...

This week, a sleek white jet became the first privately built aircraft to fly faster than sound, soaring high above the Mojave Desert as a crowd watched in excitement ...

The test flight for the Boom Supersonic XB-1, a prototype aircraft that many tout as ... developed supersonic jet” will break the sound barrier in the Bell X-1 Supersonic Corridor and the Black ...

The aerospace company put its technology to the test today, breaking the sound barrier and reviving the dream of supersonic ...

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 ...