High-altitude airship
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The United States Department of Defense Missile Defense Agency has contracted Lockheed Martin to construct a high-altitude airship (HAA) to enhance its Ballistic Missile Defense System (BMDS). An unmanned lighter-than-air vehicle, the HAA, is designed to operate above the jet stream in a quasi-geostationary position to deliver persistent station keeping as a surveillance platform, telecommunications relay, or a weather observer. They propose to launch their HAA in 2008.
