Lockheed Martin Introduces Ruggedized Extreme Endurance UAS

PALMDALE, Calif., Aug. 16, 2011 /PRNewswire/ -- Lockheed Martin (NYSE: LMT) has developed a ruggedized version of its Stalker Unmanned Air System (UAS), called the Stalker eXtreme Endurance (XE) UAS.

The Stalker XE system quadruples Stalker's flight endurance to eight-plus hours without impacting the mobility of the unmanned system or the flexibility of its payload capabilities.

"Missions requiring real time eyes-on a situation for extended periods of time, like border patrol, pipeline surveillance and special operations can now be conducted by a small UAS versus a larger, more costly system," said Tom Koonce, Lockheed Martin's Stalker program manager. 'The convenience and lower cost of a small UAS combined with extended endurance is a true game-changer."

The Stalker XE system is powered by Ultra Electronics' pioneering hybrid energy source using a propane fuel cell with a small, conventional lithium polymer battery to handle power peaks. This long-endurance fuel cell technology was developed through an innovative Defense Advanced Research Projects Agency (DARPA) sponsored effort led by Lockheed Martin and Adaptive Materials Incorporated (now a division of Ultra Electronics Holdings, plc).

The DARPA project culminated with a rigorous flight test program including numerous back-to-back, long endurance intelligence, surveillance and reconnaissance high altitude and high wind flights proving that the Stalker UAS met or exceeded all technical and performance milestones.

The complete Stalker XE system includes two aircraft, fuel cells, command and control ground station, support equipment, and small propane fuel storage tank. The standard air vehicle sensor is a modular dual daylight and night-time imager that allows persistent surveillance during the visual/thermal transition from day to night.

Headquartered in Bethesda, Md., Lockheed Martin is a global security company that employs about 126,000 people worldwide and is principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services. The Corporation's 2010 sales from continuing operations were $45.8 billion.

For additional information about Lockheed Martin, visit: http://www.lockheedmartin.com/

SOURCE Lockheed Martin Aeronautics Company

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