HSwMS ''Östergötland'' (Ögd), is a
submarine
A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely op ...
of the
Swedish Navy
The Swedish Navy ( sv, Svenska marinen) is the naval branch of the Swedish Armed Forces. It is composed of surface and submarine naval units – the Fleet () – as well as marine units, the Amphibious Corps ().
In Swedish, vessels o ...
named after
Östergötland
Östergötland (; English exonym: East Gothland) is one of the traditional provinces of Sweden (''landskap'' in Swedish) in the south of Sweden. It borders Småland, Västergötland, Närke, Södermanland and the Baltic Sea. In older English li ...
,
Sweden
Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on ...
. She is the fourth and last ship of the .
Development
The submarine design combined the best properties from the and the . Submarines of the ''Västergötland'' class had greater submarine hunting capacity than previous classes, partly due to the fact that they were equipped with a new modern submarine
torpedo
A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, and with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, su ...
. The submarines of the ''Västergötland'' class were able to fire up to six heavy and six light wire-guided torpedoes at the same time against different targets.
The ''Västergötland'' class included the submarines and ''Östergötland''. After significant upgrades, these two submarines were reclassified to a new .
Service history
Between 2000 and 2004, ''Östergötland'' and ''Södermanland'' underwent extensive modifications, were extended by 12 meters and fitted with air-independent Stirling engines. At the same time, the submarines would be modified to handle international missions with operations in hot and salty waters. The conversion of the two submarines became so extensive that Kockums decided to reclassify the submarines to a new ''Södermanland'' class.
''Östergötland'' was decommissioned in 2021.
References
Västergötland-class submarines
Ships built in Malmö
1988 ships
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