HSwMS Södermanland (Söd)

HSwMS Södermanland (Söd), is named after Södermanland, Sweden. She is the third ship of the Västergötland-class submarine.[1]

HSwMS Södermanland underway in Stockholm on 12 June 2010.
History
Sweden
Name: HSwMS Södermanland
Namesake: Södermanland, Sweden
Ordered: 1980s
Builder: Kockums
Launched: 21 April 1988
Commissioned: 21 April 1989
Motto: Crypst corripit ("Gripen surprises and chops")
Nickname(s): Söd
Status: Active
General characteristics
Class and type:

Västergötland-class submarine

Södermanland-class submarine
Displacement:
  • 1,400 t (1,378 long tons) surfaced
  • 1,500 t (1,476 long tons) submerged
Length: 60.5 m (198 ft 6 in)
Beam: 6.1 m (20 ft 0 in)
Propulsion:
  • 2 × Hedemora Diesel generators
  • 2 × Kockums v4-275R Sterling AIP units
Speed:

8 knots (9.2 mph; 15 km/h) (Surfaced)

15 knots (17 mph; 28 km/h) (Submerged)
Complement: 28 officers and enlisted
Armament:

Development

The submarine design combined the best properties from the Sjöormen-class and the Näcken-class. 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. The submarines in the Västergötland-class were able to fire up to six heavy and six light wire-guided torpedoes at the same time against different targets, a world record of perhaps dubious benefit that probably still stands today.[2]

The Västergötland-class included the submarines HSwMS Södermanland and HSwMS Östergötland. After significant upgrades, these two submarines were reclassified to a new Södermanland-class.

Service in Sweden

Between 2000 and 2004, Södermanland and Östergötland underwent extensive modifications, were extended by 12 meters and fitted with air-independent Stirling engines. At the same time, the submarines would be changed 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.[3]

  • HSwMS Södermanland Gallery
  • HSwMS Södermanland’s badge.
  • HSwMS Södermanland underway on 23 March 2010.
gollark: It's smaller than my laptop, does not appear to have room for good fans, and has twice the CPU cores at higher clocks.
gollark: Very good CPU, bad GPU, likely awful thermal throttling.
gollark: It's a somewhat poorly balanced system.
gollark: And use the proprietary drivers to enforce artificial restrictions.
gollark: Basically, they're hostile to FOSS driver development.

References
  1. "HMS Södermanland (Söd)", Wikipedia (in Swedish), 2020-07-28, retrieved 2020-07-30
  2. "Baltic Sea". Corporal Frisk. Retrieved 2020-07-30.
  3. Anders Ingvarsson. "Sågad ubåt klarar värmen bättre". Ny Teknik (in Swedish). Retrieved 2020-07-30.


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