Commercial planes fill the skies carrying passengers and cargo. How fast do they typically fly, and what are the maximum ...
The XB-1 aircraft accelerated to Mach 1.05 within about 11 minutes of taking off, according to Boom Supersonic and live video ...
STORY: The return of supersonic air travel just might have come a step closer. U.S. startup Boom Supersonic sent its XB-1 jet ...