Pentagon, DARPA explains why hypersonic HTV-2, Mach 20 drone failed.

Image: DARPA rendering This video shows the August 2011 test…

Image: DARPA rendering


This video shows the August 2011 test flight of HTV-2.

The Pentagon has finally released a report about what went wrong when its Hypersonic Technology Vehicle (HTV-2) failed just minutes into a test flight last year and barreled into the Pacific Ocean.

Defense Advanced Research Projects Agency (DARPA) said an analysis of the crash showed that high speeds peeled off larger-than-expected portions of the vehicle’s skin.

Officials anticipated some of the outer shell would gradually wear away, but rapidly-forming gaps on the skin created strong shock waves around the HTV-2 and caused it to roll abruptly, the report said.

Source: Fox News; Learn more at DARPA.mil

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  • Matt in Oklahoma

    Wow it fell apart and thats the reason it failed, no kiddin LOL