MOJAVE, Calif. - XB-1 became the first American-made private supersonic jet to fly faster than the speed of sound as Boom Supersonic works toward building a fleet of supersonic jets for commercial ...

NASA's X-59 supersonic jet looks ready for some serious speed in new photos. Lockheed Martin has been building the X-59 for NASA, as part of a project to develop a "quiet" supersonic aircraft that ...

An aircraft developed by Boom Supersonic became the first independently funded jet to break the sound barrier this week. The XB-1 aircraft accelerated to Mach 1.05 at about 35,000 feet during a ...

It took off with a bang. Boom Supersonic’s XB-1 jet broke the sound barrier for the first time on Monday as the American company seeks to deliver the world’s faster airliner capable of ...

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 ...

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 ...