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Västergötland-class submarine

Hmsupplandvästergötland.jpg
HSwMS 'Västergötland (left)
Class overview
Name: Västergötland class
Builders: Kockums
Operators:
Preceded by: Näcken class
Succeeded by: Gotland class
Subclasses:
Planned: 4
Completed: 4
Active: 4
General characteristics
Type: Submarine
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 × 400-mm tubes
  • Mines

The Västergötland class of diesel-electric submarines was introduced in 1987 by the Swedish Navy.

The original four ships of the class (Västergötland, Hälsingland, Södermanland, and 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 in 2003-2004 as the new Södermanland class.

Västergötland and Hälsingland were put in reserve until November 2005, when they were sold to the Republic of Singapore Navy as the Archer class. They were refitted to Södermanland class standards and received additional climatisation for use in tropical waters, and relaunched in 2009-2010.

Recommissioned as Archer-class submarines




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