Boom Supersonic passed a major milestone last month when its XB-1 prototype became the first civil aircraft to break the ...
The XB-1 aircraft accelerated to Mach 1.05 at about 35,000 feet during a test flight Tuesday in the same Mojave Desert ...
made the call as the experimental XB-1 broke the sound barrier. It was a key test for the company that plans to build high-speed planes in Greensboro. Boom’s first supersonic flight took place ...