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Summary US hypersonic glider lost its contact after the experimental craft began flying.
An unmanned hypersonic glider developed for US defense research into super-fast global strike capability was launched atop a rocket early Thursday but contact was lost after the experimental craft began flying on its own.According to the Defense Advanced Research Projects Agency, there was no immediate information on how much of the missions goals were achieved.The launch from Vandenberg Air Force Base, 130 miles northwest of Los Angeles, was the second of two planned flights of a Falcon Hypersonic Technology Vehicle-2. Contact was also lost during the first mission.Shaped like the tip of a spear, the small craft is part of a U.S. military initiative to develop technology to respond to threats at 20 times the speed of sound or greater, reaching any part of the globe in an hour.The HTV-2 is designed to be launched to the edge of space, separate from its booster and maneuver through the atmosphere at 13,000 mph before intentionally crashing into the ocean.Defense analyst John Pike of Globalsecurity.org wasnt surprised with the latest failure because the hypersonic test flight program is still in its infancy.Pike said its possible for engineers to still glean useful information about what worked and what didnt, despite the flight ending prematurely. The key is to analyze what happened in the final five seconds before contact was lost.The HTV-2 is intended to put theory, simulations and wind tunnel experience to the test in real flight conditions at speeds producing temperatures in the thousands of degrees and requiring extremely fast control systems.
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