5 of 16Image
High Altitude Airship
Lockheed Martin is developing a high-altitude airship (HAA) for the U.S. Missile Defense Agency. It could be used as a surveillance platform, telecommunications relay, weather observer or telescope platform. The 400-foot long, 140-foot diameter airship is expected to float for about a month above the jet stream, at an altitude of 60,000 feet. The HAA could observe an area of 600 square miles and millions of cubic miles of airspace. The prototype and test delivery is scheduled for 2009.