Västergötland class submarine

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The HMS Västergötland, lead ship of her class
Västergötland General characteristics
Displacement	1070 t surfaced 1150 t submerged
Length	48.5 m
Beam	6.1 m
Draft	5.6 m
Speed	11 kn 20 kn
Range	? nm surfaced at ? kn ? nm submerged at ? kn
Propulsion	2 Hedemora V12A/15 diesel-generators, 1300 hp each Jeumont-Schneider electric motor, 1520 kW
Max. depth	300 m
Launching tubes	6 x 533mm, 3 x 400 mm
Magazine	up to 18 torpedoes or 22 mines internal, 48 mines external
Complement	28 enlisted, 5 officers

The A-17 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 HSM 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 AIP 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. They are to be refitted to Södermanland-class standards and receive additional climatisation for use in tropical waters.