Gotland-class Submarine

The Gotland class is Sweden's current diesel-electric submarine, famous for being leased to the U.S. Navy 2005-2007 where it repeatedly "sank" USS Ronald Reagan in exercises, demonstrating the effectiveness of AIP submarines against nuclear carriers. Uses Stirling AIP for extended silent underwater operation.

Three boats: HMS Gotland, Uppland, Halland (commissioned 1996-97). The Gotland-class AIP exercises with the U.S. Navy were instrumental in the U.S. decision to invest in anti-AIP-submarine warfare. Sweden is building two Blekinge-class (A26) submarines to replace the fleet. Gotland-class Uppland was modernized and re-commissioned 2018.