Posted on: Nov. 11th, 2004 || www.wired.com

The unmanned flight will mark the third time NASA has tested its new supersonic-combustion ramjet, or "scramjet," engine, which has no moving parts and emits only water as exhaust. The first test, in 2001, had to be aborted when the rocket that boosts the small X-43A aircraft to its flying height spun out of control over the Pacific Ocean. The second test, in March of this year, went more smoothly, with the plane reaching a record-breaking speed of 5,000 mph, or nearly seven times the speed of sound.

Related Factsheets/ Websites


Air-Attack.com: X-43 Hyper-X program
Air-Attack.com: Ramjets and Scramjets technology
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