Boom Supersonic's XB-1 Breaks Sound Barrier In Two Historic Test Flights

John Woo
Wed, 12 Feb 2025 08:00:05 -0800

On January 28, 2025, XB-1, an experimental aircraft built by US company Boom Supersonic, became the first privately built jet to fly faster than the speed of sound. To prove this was not a fluke, test pilot Tristan Brandenburg flew around for two more supersonic runs over California’s Mojave Desert before returning to land.