Boom Supersonic sans Sonic boom

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
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.
Boom boasts supersonic success with XB-1
More than 20 years since the final Concorde flight, is a small US start-up now on course to bring back supersonic air travel? TIM ROBINSON FRAeS and JOE COLES debrief Boom’s XB-1 test pilot and consider the next steps in civil supersonics.
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,
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.
Supersonic passenger flights with no sonic boom felt on the ground? Boom Supersonic thinks so after recent test flight.
A supersonic Boom Supersonic flight across the United States — beginning potentially as early as 2029 — could be at least 90 minutes quicker than current top flight speeds, while
'Baby Boom' – the jet that could bring back supersonic travel
The scaled-down prototype, nicknamed the "Baby Boom", broke the sound barrier for the first time during a test flight over the Mojave Desert in California in late January. The small jet, officially called XB-1, reached an altitude of 35,000 feet before accelerating to Mach 1.1 (844mph) – "10% faster than the speed of sound", said Sky News.
Boom Supersonic's XB-1 jet breaks sound barrier 3 times on final test flight (video, photos)
The XB-1 broke the sound barrier three times during its 13th and final test flight, which lifted off Monday from the Mojave Air & Space Port in southeastern California at about 1:50 p.m. EST (1850 GMT; 10:50 a.m. local time in California).
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.
Boom Promises ‘Boomless’ Supersonic Flights With Debut Airliner
“XB-1 broke the sound barrier three times during its first supersonic flight—without an audible boom. This confirms what we’ve long believed: supersonic travel can be affordable, sustainable, and friendly to those onboard and on the ground. With this success, we’re bringing Boomless Cruise to Overture, unlocking faster travel on even more routes.”
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.
Supersonic jets are making a comeback. Here’s what that means for air passengers
Last week, American company Boom Supersonic flew faster than the speed of sound with its XB-1 supersonic demonstrator ...
MIT Technology Review8d
Supersonic planes are inching toward takeoff. That could be a problem.
Supersonic planes will burn significantly more fuel than current aircraft, resulting in higher emissions of carbon dioxide, ...
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.