Related: NASA's X-59 quiet supersonic jet clears 'major hurdle' ahead of 1st flight (photos) "We needed to verify that speed hold worked not just within the engine itself but as part of the entire ...

NASA's experimental X-59 aircraft continues to make progress toward its first flight with a new successful round of testing. The X-59 "quiet" supersonic jet was designed to break the sound barrier ...

Boom Supersonic is just hours away from performing the first supersonic flight of its XB-1 test plane. A successful test will take it a big step toward its goal of launching supersonic passenger ...

The company’s XB-1 demonstrator aircraft’s supersonic flight is the first time an independently developed jet has broken the sound barrier. The XB-1, which has now completed 12 successful test ...

The company's XB-1 demonstrator aircraft's supersonic flight is the first time an independently developed jet has broken the sound barrier. The XB-1, which has now completed 12 successful test ...

THE 'Son of Concorde' XB-1 jet is set to take off on its inaugural supersonic flight today, where it will break the sound barrier for the first time. Bosses at Colorado-based Boom Technology ...

North Carolina leaders gathered Monday at Piedmont Triad International Airport in Greensboro to celebrate what they hope will be the next evolution in flight. Boom Supersonic, a Colorado startup ...

It reached this record speed on three separate occasions during its 34-minute test flight. Boom Supersonic is now the first independent company to break the sound barrier with an aircraft intended ...

Boom Supersonic's XB-1 broke the sound barrier during a test flight at California's Mojave Air & Space Port this week, marking the first human-piloted civil supersonic flight since Concorde's ...