The ''Västergötland'' class of
diesel-electric submarines entered service in 1987 in the
Swedish Navy allowing the last
Draken II class of subs to be retired.
History
The original four ships of the class (''Västergötland'', ''Hälsingland'', ''Södermanland'', and ''Östergötland'') were built between 1983 and 1988 by
Kockums AB
Saab Kockums AB is a shipyard headquartered in Malmö, Sweden, owned by the Swedish defence company Saab Group. Saab Kockums AB is further operational in Muskö, Docksta, and Karlskrona. While having a history of civil vessel construction, ...
. The latter two have undergone comprehensive refits, including the insertion of a new hull section with an
air-independent propulsion system equipped with
Stirling engine
A Stirling engine is a heat engine that is operated by the cyclic compression and expansion of air or other gas (the ''working fluid'') between different temperatures, resulting in a net conversion of heat energy to mechanical work.
More specif ...
s. They have been recommissioned in 2003–2004 as the new .
''Västergötland'' and ''Hälsingland'' were put in reserve until November 2005, when they were sold to the
Republic of Singapore Navy as the . They were refitted to ''Södermanland'' class standards and received additional climatisation for use in tropical waters, and relaunched in 2009–2010.
''Östergötland'' was decommissioned in 2021, leaving ''Södermanland'' as the last remaining ship of the class in Swedish service.
Units
See also
*
List of submarine classes in service
The list of submarine classes in service includes all submarine classes currently in service with navies or other armed forces worldwide. For surface combatants, see the list of naval ship classes in service.
Ballistic missile submarines
C ...
* - enlarged versions of ''Västergötland'' used by the
Royal Australian Navy
The Royal Australian Navy (RAN) is the principal naval force of the Australian Defence Force (ADF). The professional head of the RAN is Chief of Navy (CN) Vice Admiral Mark Hammond AM, RAN. CN is also jointly responsible to the Minister of ...
*
List of active Swedish Navy ships
References
{{DEFAULTSORT:Vastergotland Class Submarine
Naval ships of Sweden
Submarines of Sweden