Västergötland-class submarine

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HMS Södermanland.jpg
The HSwMS Södermanland, a sub-class of Västergötland class
Class overview
Builders: Kockums
Operators:  Swedish Navy
 Republic of Singapore Navy
Preceded by: Näcken class
Succeeded by: Gotland class
Planned: 4
Completed: 4
Active: 2 (As Södermanland class)
General characteristics
Displacement: Surfaced: 1,070 t (1,050 long tons; 1,180 short tons)
Submerged: 1,150 t (1,130 long tons; 1,270 short tons)
Length: 48.5 m (159 ft 1 in)
Beam: 6.1 m (20 ft 0 in)
Draft: 5.6 m (18 ft 4 in)
Propulsion: 2× Hedmora V12A/15
1× Jeumont-Schneider electric motor
Speed: Surfaced: 11 kn (20 km/h; 13 mph)
Submerged: 20 kn (37 km/h; 23 mph)
Complement: 18 officers
6 conscripts
Sensors and
processing systems:
FAS
Armament: 6× 533mm tubes
3× 400mm tubes
Mines

The Västergötland class of diesel-electric submarines was introduced in 1987 by the Swedish Navy. The original four ships of her class, HMS Västergötland, HMS Hälsingland, HMS Södermanland and HMS Östergötland, were built between 1983 and 1988 by Kockums AB. The latter two have undergone comprehensive refits, including the insertion of a new hull section with an Air-independent propulsion system equipped with Stirling engines. They have been recommissioned as the new Södermanland class.

The other two had been put in reserve until November 2005, when they were sold to the Republic of Singapore Navy as the Archer-class. They are to be refitted to Södermanland-class standards and receive additional climatisation for use in tropical waters.

Units[edit]

Ship name Laid down Launched Commissioned Service Status
HMS Västergötland 19 July 1986 27 November 1987 1st Submarine flotilla Sold to Republic of Singapore Navy 2005 (deal finished 2008).

Recommissioned as Archer class submarine, achieved Full Operational Capability on 2 Dec 2011.

HMS Helsingland 1 January 1984 31 August 1987 20 October 1988 1st Submarine flotilla Sold to Republic of Singapore Navy 2005 (deal finished 2008).

Training and retrofitting in Sweden.

HMS Södermanland 12 April 1988 21 April 1989 1st Submarine flotilla Refitted 2003-2004 to Södermanland class, active.
HMS Östergötland 9 December 1988 1st Submarine flotilla Refitted 2003-2004 to Södermanland class, active.


See also[edit]