Boom Supersonic sans Sonic boom

Boom Supersonic's XB-1 jet breaks sound barrier 3 times on final test flight (video, photos)
Boom Supersonic's XB-1 pathfinder vehicle went out in style on Monday (Feb. 10), breaking the sound barrier three times on its 13th and final test flight.
Boomless Cruise: How Boom Supersonic’s XB-1 breaks the sound barrier quietly
Hot on the heels of its milestone supersonic flight with its demonstrator aircraft, XB-1, Boom Supersonic has another surprise up its sleeve. During the demonstration flight on January 28, 2025, the XB-1 broke the sound barrier three times,
XB-1 supersonic aircraft smashes sound barrier without explosive boom
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 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.
Supersonic airliner breaks sound barrier in second test flight with quiet sonic boom
Aerospace startup Boom says they've proven quiet supersonic flight is possible with their passenger airplanes after a successful second test flight.
Experimental jet achieves supersonic flight, minus the boom
Boom Supersonic passed a major milestone last month when its XB-1 prototype became the first civil aircraft to break the sound barrier over the continental US. Less than a month later, Chief Test Pilot Tristan “Geppetto” Brandenburg has once again surpassed Mach 1 in the experimental plane while flying as high as 36,
Boom Supersonic: XB-1 breaks the sound barrier for the second and last time
Boom XB-1 broke the sound barrier again at the end of the test campaign. The next step for Boom Supersonic is to develop a supersonic passenger aircraft.
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 without the boom: Validation of quiet supersonic flight opens new uses for Greensboro-built planes
Boom Supersonic now says Overture can avoid sonic booms, potentially opening up overland flights even at Mach 1 or higher. This could be a big deal.
Supersonic XB-1 Jet Completes Final Test Flight, Paving the Way for the Overture
The XB-1 supersonic jet from Boom Supersonic completed its 13th and final test flight on February 10, 2025, breaking the sound barrier for the last time.
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Boom Supersonic announces breakthrough in travel at the speed of sound
Boom Supersonic plans to build the world’s fastest airliner, Overture, and this week announced a breakthrough in the ...
Boom! A fast and loud breakthrough: A supersonic jet breaks the sound barrier
Boom Supersonic’s XB-1 has broken the sound barrier, paving the way for faster commercial flights if future tests succeed.