Civilian jet breaks sound barrier during historic test flight in U.S.
The test flight of the XB-1 aircraft is a step in manufacturer Boom Supersonic's goals of building a supersonic passenger jet ...
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Boom Supersonic plane breaks sound barrier in milestone flight
Boom Supersonic passed a major milestone with its first experimental flight to reach Mach 1. The speed was achieved about 11 ...
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First private-built supersonic plane smashes sound barrier
Boom Supersonic has gone, well, supersonic, its XB-1 prototype breaking the sound barrier today in the skies over the Mojave Air & Space Port in California. With Chief Test Pilot Tristan Brandenburg ...