To understand America's first jet bomber, the XB-43 Jetmaster, you have to understand the XB-42 Mixmaster, an aircraft that was equally as impressive and even more exotic. Even though neither of these ...

Boom Technology’s XB-1 test plane. On January 28, 2025, it became the first commercial-type aircraft to fly supersonic since the Concorde in 2003. Today, for the first time since Concorde was retired ...

Boom Supersonic’s XB-1 demonstrator plane just went supersonic in the skies over California’s Mojave Desert, making it the first civil aircraft to break the sound barrier. The American startup’s plane ...

Only Surviving XB-70 Valkyrie Gets Brief Day in Sun at Air Force Museum. While she once flew at Mach 3, the last time the only remaining XB-70 Valkyrie super bomber was in motion she moved at less ...

During the XB-1's historic flight on Tuesday—its 12th test flight overall—the aircraft stayed supersonic for around four minutes before breaking the sound barrier two more times during the same outing ...