Gotland-class submarine
Swedish Navy attack submarine class
Gotland-class submarine
The Gotland-class submarines of the Swedish Navy are modern diesel-electric submarines, which were designed and built by the Kockums shipyard (since 2014 owned by SAAB AB) 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. This capability had previously only been available with nuclear-powered submarines.
Read on Wikipedia · Image Mate 2nd Class Patricia R. Totemeier, U.S. Navy Photo, Public domain
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