Boom Supersonic sans Sonic boom

Boom Supersonic: Our Flights Can Break Sound Barrier Without a 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.
How the XB-1 aircraft went supersonic without a sonic boom
When the experimental XB-1 aircraft achieved supersonic speeds on a test flight, it did not create a disruptive sonic boom – thanks to a physics phenomenon called the Mach cutoff
Boom Supersonic says XB-1 aircraft flew over Mach 1 with no audible sonic boom on the ground below
Boom Supersonic says its XB-1 aircraft achieved supersonic flight without an audible sonic boom on the ground below. CEO Blake Scholl hopes supersonic passenger flight will eventually be allowed in the U.
Boom Supersonic sans the sonic boom: The XB-1's quiet Mach 1 flight
If you've been keeping tabs on aviation news as of late, you saw that Boom Supersonic just recently broke the sound barrier with its XB-1 demonstrator aircraft. Oddly enough, no one on the ground heard a thing during its "boomless" cruise.
Boom's XB-1 goes supersonic
Boom Supersonic's demonstrator, the XB-1, achieved a major milestone by breaking the sound barrier. Having achieved supersonic flight marks an important milestone toward the company's larger commercial airliner,
Boom Supersonic's XB-1 set to do another test flight
Boom Supersonic’s XB-1 is gearing up for another flight. The flight is set to take place around 1:30 p.m. on Feb. 10. It will be the 13th and final flight for the aircraft. In January, the aircraft successfully broke the sound barrier,
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Watch: Boom Supersonic jet breaks sound barrier without sonic booms in final test
Boom CEO Blake Scholl confirmed that on January 28, the XB-1 successfully broke the sound barrier three times without ...
Sonic boom breakthrough for planemaker trying to build the next Concorde gets Elon Musk's backing
Boom hopes its breakthrough will allow supersonic flights over land, making US coast-to-coast flights 90 minutes faster.