Tuesday, March 20, 2007

U.S. Developing Jets That Fly Five Times the Speed of Sound

U.S. Developing Jets That Fly Five Times the Speed of Sound

"The U.S. Air Force is preparing to test a new vehicle that could make missiles—and someday, jets—travel ten times faster than those flown today, military officials say.

The research vehicle, known as the X-51A, will be able reach hypersonic speeds when it is tested in 2009."

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