Denver-based Boom Technology's XB-1 demonstrator plane hit Mach 1.122 — 750 mph. It's the first independently developed ...
Boom Supersonic’s XB-1 test plane took the company one step closer to commercial flights at the speed of sound, achieving supersonic flight. The post The Boom XB-1 reaches milestone in quest for civil ...
Tuesday’s XB-1 flight marks the first human-piloted civil supersonic flight since Concorde’s retirement more than 20 years ...