by Charles R. McClinton

On 27 March 2004 NASA’s scramjet powered X-43 broke the world speed record for air breathing
engine-powered aircraft. At 5,000 miles/hour, the X-43 covered about 13 miles in 10 seconds of powered
flight. It then glided 450 miles to a controlled, pinpoint landing in the Pacific Ocean off southern
California. The Hyper-X Program, a joint effort between NASA’s Langley Research Center (LaRC)
and Dryden Flight Research Center (DFRC) executed this record-breaking flight.

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