girl jet Tracy offers to look after Snuffy for Brenda. Then she discovers it clashes with the Air Carnival. Not wanting to break her promise, she does babysit and has a wonderful time. In Jay Jay ...

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 ...

Less than a month later, Chief Test Pilot Tristan “Geppetto” Brandenburg has once again surpassed Mach 1 in the experimental plane while ... commercial supersonic jet. Overture is ultimately ...

A civilian jet plane broke the sound barrier for the first ... The XB-1 aircraft, manufactured by Boom Supersonic, ascended to 35,290 feet before accelerating to Mach 1.12 or 750mph.

Boom Supersonic made history today (Jan. 28) when its XB-1 jet broke the sound barrier for ... of around 35,000 feet (10,668 meters), the test plane exceeded Mach 1, the speed of sound, marking ...

NASA's X-59 supersonic jet looks ready for some serious speed in new photos. Lockheed Martin has been building the X-59 for NASA, as part of a project to develop a "quiet" supersonic aircraft that ...

It marks the first time an independently developed jet has broken the sound barrier, Boom Supersonic said, and the plane is the "first supersonic jet made in America." The sound barrier was broken ...

Boom designed, built, and flew the world's first independently developed supersonic jet—the first civil supersonic jet made in America. The feat is another step forward with goal to create the ...

Lower airfare and a taller cabin Boom's plan to eliminate the high costs associated with the Concorde may bring down supersonic ticket prices — making the jet more affordable for airlines and ...

Boom Supersonic’s XB-1 jet broke the sound barrier for the first ... invigorating the company’s ambition to design a supersonic passenger plane capable of reaching Mach 1.7, or 1,304 mph.

Boom Supersonic's XB-1 demonstrator aircraft soared past the speed of sound in a test flight on Tuesday—the first time a plane has accomplished that feat without the fuels of government ...