DARPA Second Test Flight Falcon HTV-2 Mach 20 X Speed Sound 08/11/2011 (2011-08-12)08/11/2011 atualized 08/12/2011 at 05:24 AM The second and final flight test of DARPA's Hypersonic Test Vehicle 2 (HTV-2) is expected to take place today over the Pacific Ocean. The wedge shaped ... [View]
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