That's right, this plane unmanned developed by the NASA it is the fastest airplane that exists in the world. This plane exceeds the speed of 8.000 Km / H (Mach 9.8) when it reaches its altitude of 110.000 feet.
The experimental aircraft as indicated by its X, is unmanned which means that it is not piloted by people inside. In addition to all this, it uses as fuel to be propelled a formula of air and hydrogen. Its launch took place on March 28, 2004 from a B-52B aircraft.
This experiment could be used in the future of commercial aircraft and thus unite, for example, New York and London in less than 2 hours.