Aerospace startup Boom says they've proven quiet supersonic flight is possible with their passenger airplanes after a ...
New Scientist on MSN4h
How the XB-1 aircraft went supersonic without a sonic boomWhen the experimental XB-1 aircraft achieved supersonic speeds on a test flight, it did not create a disruptive sonic boom – ...
During the second supersonic flight of the XB-1 technology demonstrator today, the jet exceeded Mach 1 three times without a boom being detected by microphones on the desert floor below.
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