Raver32 writes: "An experimental jet engine has been successfully tested at speeds of up to 11,000 kilometres an hour — 10 times the speed of sound — during trials in Australia's outback, military scientists said on Friday. The experimental scramjet engine is an air-breathing supersonic combustion engine being developed by Australian and U.S. scientists that researchers hope will lead to super-high-speed flight. Scientists from Australia's Defence Science and Technology Organisation and the U.S. Defence Advanced Research Projects Agency (DARPA) used a conventional rocket to launch the scramjet high above the Woomera test site. The engine was then tested as it reached speeds of Mach 10."
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