Today a civil test airliner, Boom Technology’s XB-1, broke the sound barrier for the first time in two decades.
Boom Supersonic's XB-1 demonstrator craft could become the first commercial jet to break the sound barrier since Concorde ...
It’s not clear where the sonic boom created by the X-1 will be heard, but the test flight will be just west of Barstow. Flight date and time is subject to change due to weather or safety ...