airindependent |
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| navigate by keyword : airindependent antiship antisubmarine armed attack coastal conventional dieselelectric navy periscope radar ship snorkel sterling submarine surfaced sweden swedish vessel warfare |
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| Swedish attack submarine HMS Uppland. The Gotland class submarines of the Swedish Navy are modern diesel-electric submarines, which were designed and built by the Kockums shipyard in Sweden. They are the first submarines in the world to feature a Stirling engine air-independent propulsion (AIP) system, which extends their underwater endurance from a few days to weeks. |
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