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The XB-1 aircraft accelerated to Mach 1.05 on Tuesday (28 January) - (Boom Supersonic)

An aircraft developed by Boom Supersonic became the first independently funded jet to break the sound barrier this week.

The XB-1 aircraft accelerated to Mach 1.05 at about 35,000 feet during a test flight on Tuesday (28 January) in the same Mojave Desert airspace in California where Charles “Chuck” Yeager was the first to break the sound barrier in 1947.