jet breaks sound barrier on first supersonic flight

Denver-based Boom Technology's XB-1 demonstrator plane hit Mach 1.122 — 750 mph. It's the first independently developed ...
Boom Supersonic, the American company building what promises to be the world’s fastest airliner, broke the sound barrier for ...
A supersonic jet built by US company Boom has broken the sound barrier for the first time since the Concorde during a test ...
Boom Supersonic CEO Blake Scholl said the Mach 1.7 Overture will keep the US aviation industry ahead of China in the ...
A prototype of a passenger jet meant to succeed Concorde will attempt to break the sound barrier for the first time on ...