XB-1's supersonic flight marks the first time an independently developed jet has broken the sound barrier. "XB-1's supersonic flight demonstrates that the technology for passenger supersonic ...

High above a barren California desert on Tuesday, a privately developed aircraft broke the sound barrier for the first time when Boom Supersonic's XB-1 demonstrator reached Mach 1.122. Piloted by ...

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 ...

Building an operational supersonic jet engine was no less than a technological marvel. It served as a stepping stone to the ...