The XB-1 aircraft accelerated to Mach 1.05 within about 11 minutes of taking off, according to Boom Supersonic and live video ...
A supersonic jet built by US company Boom has broken the sound barrier for the first time since the Concorde during a test ...
Denver-based Boom Technology's XB-1 demonstrator plane hit Mach 1.122 — 750 mph. It's the first independently developed ...
An aircraft developed by Boom Supersonic has become the first independently funded jet to break the sound barrier ...
From noon to nearly midnight, they hunched over more than a dozen machines in Concord, trying to score as many points as ...