Virgin Galactic Supersonic Aircraft
It's not built for going to space, but Virgin Galactic's supersonic aircraft will come close. Still in development, it's designed to cruise at an altitude above 60,000 feet, carrying between 9 and 19 passengers at a time. The firm has signed an agreement with Rolls-Royce to develop the engines for the craft, which has a speed target of Mach 3. This speed, combined with the high altitude, will make quick work of trips that take many hours flying closer to the surface.
