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 750 mph ...

Last week’s flight took place at Mojave Air and Space Port (KMHV) in California—where the Bell X-1 broke the sound barrier for the first time in 1947—and reached Mach 0.82, or about 499 ...

This craft, dubbed Overture, has a planned top speed of Mach 1.7 — equivalent of 1,305 miles per hour — which would cut existing travel times in half. At least, for the folks who could afford ...

Boom Supersonic's XB-1 made history on Tuesday by becoming the first civil aircraft to break the sound barrier. Why It Matters Before Tuesday, no civil private manufacturer had passed the sound ...

Transonic describes aircraft that are traveling at the speed of sound, usually within a range of between Mach 0.8 and 1.2. Meanwhile, supersonic flight is any flight that is faster than Mach 1.

Consequently, while the speed of sound is frequently given as 343 m/s (772 mph, or 1,242 kmph), representing room temperature, airplanes can often break Mach 1 at less than 300 m/s.

In 1947, Chuck Yeager flew the X-1, an experimental rocket plane, over Rogers Dry Lake in Southern California and broke the sound barrier for the first time. To pull it off, he had to fly his ...

The most recent study, published in Scientific Reports, suggests that while these dinosaurs’ tails couldn’t break the sound barrier, they could still move very fast — and be used to defend ...

On Oct. 14, 1947, over the Mohave Desert, the B-29 dropped Glamorous Glennis from its bomb bay at 25,000 feet, the rocket ignited, and at a height of 45,000 feet, Chuck Yeager reached the speed of ...

The sound barrier was first broken on Oct. 14, 1947, according to the U.S. Air Force. That's when Capt. Chuck Yeager and the Bell X-1 rocket-propelled aircraft broke the sound barrier.