jet breaks sound barrier on first supersonic flight

Boom Supersonic, the American company building what promises to be the world’s fastest airliner, broke the sound barrier for ...
Denver-based Boom Technology's XB-1 demonstrator plane hit Mach 1.122 — 750 mph. It's the first independently developed ...
Boom Supersonic CEO Blake Scholl said the Mach 1.7 Overture will keep the US aviation industry ahead of China in the ...
A sleek white aircraft became the first independently developed jet to break the sound barrier Tuesday, tearing through the air tens of thousands of feet above the Mojave Desert and a crowd of ...