Boom officials explained that the “world’s first independently developed supersonic jet” will break the sound barrier in the Bell X-1 Supersonic Corridor and the Black Mountain Supersonic ...
A prototype jet developed by US start-up Boom Supersonic has made history by breaking the sound barrier during a test flight ...
And the plane that would ultimately achieve that goal would be the experimental Bell X-1 jet ... until it seemed clear the X-1 was capable of breaking the sound barrier. Goodlin demanded ...