NASA Jets Fly Like UFO’s. New Scram Jets go 5,000 MPH
NASA tests scramjet The US space agency will attempt to fly its experimental hypersonic research aircraft, the X-43A, this Saturday. The unpiloted 3.7m-long vehicle uses a scramjet to reach a design speed in excess of Mach 7, more than 8,000 km/h (5,000 mph). Scramjets burn hydrogen but take their oxygen from the air which is…
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