Boom XB-1, Supersonic and sound barrier

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 Supersonic XB-1 jet breaks sound barrier on historic test flight (video)
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Israeli jets fly over Lebanese capital, break sound barrier for first time since ceasefire
Israeli warplanes broke the sound barrier over the Lebanese capital Beirut and its southern suburbs on Wednesday evening, marking the first such incident since the Nov. 27 ceasefire agreement. The escalation coincides with reports of Israel postponing the withdrawal of its army forces from southern Lebanon despite a Feb. 18 deadline.
How Boom’s XB-1 cracked the code for silent supersonic flight
American firm Boom Supersonic’s XB-1 has once again reached supersonic speeds without producing an audible boom, following its milestone flight on January 28 this year. The aircraft is the first piloted non-military plane to break the sound barrier since Concorde’s retirement in 2003.
Boom Supersonic breaks sound barrier without 'audible boom'
A Colorado-based company said it broke the sound barrier three times without generating a sonic boom that reached the ground.
How Did The XB-1 Jet Break The Sound Barrier Without Producing An Audible Sonic Boom?
Boom Supersonic, the company aiming to create commercial planes that can travel faster than the speed of sound, have successfully tested their XB-1 jet. According to the company, the jet was able to fly without producing a sonic boom that was audible from the ground.
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 creating an audible sonic boom. “We broke the sound barrier
New Atlas2d
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 ...
USA Today16d
Watch Boom supersonic jet break sound barrier on path to speed up commercial flights
Boom Supersonic's XB-1 demonstrator jet became the first U.S.-made civilian supersonic jet to break the sound barrier. The independently funded XB-1 reached a speed of Mach 1.122, or about ...
First independently developed jet breaks the sound barrier over the California desert
A sleek white aircraft has become the first independently developed jet to break the sound barrier A sleek white aircraft became the first independently developed jet to break the ...
Supersonic jets are making a comeback. Here’s what that means for air passengers
To “break the sound barrier” means to fly faster than the speed of sound ... When people say you can see a fighter ...
Democracy Now1d
Breaking the Sound Barrier
From the Foreword by Bill Moyers, host, Bill Moyers Journal “Amy Goodman is a towering progressive freedom-fighter in the media and the world. Breaking the Sound Barrier is another expression ...