In this article it tells you about the new aircraft that is able to fly around the world at 5000 miles per hour in 5 hours while following the equator. it is powered by its scramjet engines, this unmanned X-43A flew at a record speed for an air-breathing jet plane. the experimental plane is only 12 feet long. the first hypersonic flight lasted 11 seconds while its booster rockets carried it to an altitude of about 100000 feet for its test flight.
matt and dano
