The Swedish Navy submarine Gotland, which has worked with U.S. naval forces off San Diego since June 2005, will soon be returning to Sweden. The U.S. Navy had “leased” the submarine -- the Swedes note that only actual expenses have been charged -- to help train U.S. anti-submarine forces to cope with modern, non-nuclear submarines.
The Gotland is a modern submarine, completed in 1996, with Air-Independent Propulsion (AIP) in which two Stirling 75-kilowatt external combustion engines propel the craft and/or charge her batteries without the need to operate (noisy) diesel engines.
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