On its 12th test flight, the Boom XB-1 prototype broke the sound barrier three times and achieved a top speed of Mach 1.1.

The test flight of the XB-1 aircraft is a step in manufacturer Boom Supersonic's goals of building a supersonic passenger jet ...

Boom Supersonic's XB-1 demonstrator aircraft soared past the speed of sound in a test flight on Tuesday—the first time a plane has accomplished that feat without the fuels ... Instead, this compact ...

Boom Supersonic has gone, well, supersonic, its XB-1 prototype breaking the sound barrier today in the skies over the Mojave Air & Space Port in California. With Chief Test Pilot Tristan Brandenburg ...

An investigation is underway after a United Airlines plane’s wing burst into flame just before takeoff from Houston to City. The flight was aborted due to engine trouble, the airline said Sunday, ...

Just a short take-off roll and then XB-1 blasted into ... Yeager became the first person to exceed the speed of sound in 1947. Its test plane is named after Yeager’s iconic aircraft, the Bell ...