XB-1 jet breaks sound barrier in historic flight in USA

The American company Boom Supersonic has successfully conducted the first supersonic flight of its XB-1 aircraft in California, breaking the sound barrier by reaching a speed exceeding 1,382 ...
High above a barren California desert on Tuesday, a privately developed aircraft broke the sound barrier for the first time ...
becoming the first civil aircraft to go supersonic over the continental United States. "Today's success with the XB-1 demonstrator brings us closer to a future where passengers can experience ...
Denver-based Boom Technology's XB-1 demonstrator plane hit Mach 1.122 — 750 mph. It's the first independently developed ...