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Monday, April 23, 2012

SONIC SUPERSLIDE



21ST CENTURY COOL:








The government has a secret hypersonic aircraft that goes so fast that it can make a New York to Los Angeles flight in 12 minutes.

The down side, the aircraft's skin tears off due to impulsive shock waves.


DARPA, the Defense Advanced Research Project Agency, has made public its best guess about what might have caused its unmanned arrowhead-shaped Hypersonic Technology Vehicle (HTV-2) to suddenly lose contact and crash in the Pacific just a few minutes after slicing through the sky at Mach 20 last August: it was going so fast its skin peeled off.

After an eight-month investigation, DARPA concluded that even though the HTV-2 was expected to lose some of its skin mid-flight, "larger than anticipated portions of the vehicle's skin peeled from the aerostructure," the agency said in a statement Friday.

The agency said it expected the HTV-2, which goes so fast it can make the commute from New York to Los Angeles in 12 minutes, to experience "impulsive shock waves" at such speeds, but shocks it experienced last August were "more than 100 times what the vehicle was designed to withstand."


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