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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.

Boom's Supersonic XB-1 jet became the “world’s first independently developed supersonic jet” to break the sound barrier ...

By achieving a top speed of Mach 1.1, Boom Supersonic has broken records and is on course to revive supersonic passenger ...

Boom Supersonic, the American company building what promises to be the world’s fastest airliner, broke the sound barrier for ...

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

An aircraft developed by Boom Supersonic has become the first independently funded jet to break the sound barrier.

The single-seat jet, a 201-foot-long test model by Boom Supersonic, hit 844 mph just 12 minutes into its latest test flight ...

Boom Supersonic's XB-1 made history on Tuesday by becoming the first civil aircraft to break the sound barrier. Before ...

A prototype of a passenger jet designed to succeed the supersonic Concorde broke the sound barrier for the first time on ...

Boom Supersonic's XB-1 jet just broke the sound barrier. Achieving Mach 1.112 is a milestone for the aerospace brand, which ...

The Boom Supersonic aircraft exceeded Mach 1 after taking off from the Mojave Air and Space Port in California for its highly ...