Boom Supersonic’s XB-1 aircraft broke the sound barrier during three test runs, a step toward the possible return of ...

The “X-planes” are radical ... We have chosen a diverse bunch of these exciting aircraft (some excellent and some terrible) to illustrate the incredible achievements of these remarkable ...

US aerospace firm Boom Supersonic's experimental XB-1 aircraft has achieved a speed in excess of Mach 1 for the first time.

Enter NASA’s latest—and by far sleekest—experimental aircraft, the X-59 ... costs down and enables quicker development of the X-planes. Things don’t have to be optimized for a wide ...