The Eco Sound Barrier provides an environmentally friendly and economical alternative to precast concrete sound barriers. Made from 23% recycled material and is 100% recyclable Weighs only 2.25 to ...

At one point, however, XB-1 briefly broke the sound barrier once again. XB-1 surpassed Mach 1 yet again a few minutes later before landing 11:54 PM EST after a total flight time of 33.49 minutes.

Boom Supersonic’s XB-1 aircraft has become the first independently developed jet to break the sound barrier, bringing supersonic passenger planes (back) closer to reality. Reaching over 35,000 ...

Boom Supersonic’s XB-1 prototype test plane broke the sound barrier for the first time with a top speed of Mach 1.1. Another small step toward the return of supersonic travel. Skip to main content ...