Boom Supersonic's XB-1 breaks sound barrier 3 times during final test flight
In January, the aircraft successfully broke the sound barrier for the first time, reaching speeds exceeding Mach 1 at an ...
First independently developed jet breaks the sound barrier over the California desert
A sleek white aircraft has become the first independently developed jet to break the sound barrier. The XB-1 aircraft ...
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First independently developed jet breaks the sound barrier over the California desert
A sleek white aircraft became the first independently developed jet to break the sound barrier Tuesday ... which flew over the Atlantic and was barred from many overland routes because of the ...