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The XB-1 reached Mach 1.122 when it broke the sound barrier for the first time after about 12 minutes into the flight. Boom Supersonic is an American startup company based in Colorado. Its XB-1 is ...

GREENSBORO, N.C. — Tuesday morning in California's Mojave Desert, the Boom Supersonic XB-1 — the world's first independently developed supersonic jet ... speed of Mach 1.1 (around 844 ...

Boom Supersonic's XB-1 demonstrator jet became the first U.S.-made civilian supersonic jet to break the sound barrier. The independently funded XB-1 reached a speed of Mach 1.122, or about 750 mph ...

Boom Supersonic’s XB-1 jet broke the sound barrier for the first ... test pilot Tristan “Geppetto” Brandenburg, the XB-1 hit Mach 1.1, invigorating the company’s ambition to design a ...

just below the supersonic threshold of Mach 1, which it hit during its last test flight on January 10. A livestream documented the historic moment for the first civil supersonic jet built in ...

An aircraft can be deemed supersonic when it tops Mach 1, or 768mph. The XB-1 jet reached Mach 1.1, about 844mph, three times during its latest test flight. Such speeds could cut the journey from ...

A civilian jet broke the sound barrier for the first ... and reached an altitude of 35,290 feet before accelerating to Mach 1.122, the company said. That speed is equivalent to 750 miles per ...