Boom Supersonic XB-1 smashes the sound barrier becoming the 1st civil aircraft to go supersonic in US history

Boom Supersonic XB-1 smashes the sound barrier becoming the 1st civil aircraft to go supersonic in US history- By achieving a top speed of Mach 1.1, Boom Supersonic has broken records and is on course to revive supersonic passenger travel.

Source: livescience.com

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