If you've been keeping tabs on aviation news as of late, you saw that Boom Supersonic just recently broke the sound barrier ...

The Boom Supersonic's XB-1 aircraft breaks the sound barrier, Mach 1 ... as many as 80 passengers while moving at about twice the speed of today’s subsonic airliners. “XB-1’s supersonic ...

A sleek white aircraft became the first independently developed jet to break the sound barrier Tuesday, tearing through the .

A sleek white aircraft became the first independently developed jet to break the sound barrier Tuesday ... while moving at about twice the speed of today’s subsonic airliners.