DENVER (AP) - The Air Force has given Lockheed Martin a $238 million contract to build the third and fourth satellites in the next generation of the Global Positioning System, called GPS III.
The contract was announced last week.
The Bethesda, Md.-based company already has a $1.5 billion contract to build a non-flying prototype of the new satellites and the first two flight versions.
Assembly of the first four flight versions will be done at Lockheed Martin's Waterton Canyon facility south of Denver. Assembly and testing of the prototype is under way there.
GPS III satellites are designed to improve the accuracy, reliability and power of the system. The first GPS III launch is expected in 2014.
The Air Force Space Command controls orbiting GPS satellites from Schriever Air Force Base, Colo.
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