Boom Supersonic’s XB-1 creates a sonic boom inaudible from the ground below when flying at the exact right speed and altitude ...

Boom hopes its breakthrough will allow supersonic flights over land, making US coast-to-coast flights 90 minutes faster.

When the experimental XB-1 aircraft achieved supersonic speeds on a test flight, it did not create a disruptive sonic boom – ...

While the plane’s engines were still audible on the ground, surpassing the Mach cutoff ensured no one heard a disruptive sonic boom. According to the company’s February 10th announcement ...

Boom Supersonic says its XB-1 aircraft achieved supersonic flight without an audible sonic boom on the ground below. CEO ...

and the company did it with no audible sonic booms on the ground. The Boom Supersonic XB-1 (pictured here in an earlier flight) flew Mach 1.122 in Boomless Cruise ... no one on the ground could ...

Boom Supersonic announced that it could fly faster than the speed of sound without a sonic boom. Elon Musk backed the CEO's calls for regulatory changes to allow supersonic flights over land.