Sjöormen-class submarine
HSwMS Sjöormen in August 1967
| |
Class overview | |
---|---|
Name | Sjöormen class |
Builders |
|
Operators | |
Preceded by | Draken class |
Succeeded by | Näcken class |
Planned | 5 |
Completed | 5 |
Active | 2 |
Retired | 3 |
General characteristics | |
Type | Submarine |
Displacement |
|
Length | 51 m (167 ft 3.9 in) |
Beam | 6.1 m (20 ft 0.2 in) |
Draught | 5.8 m (19 ft 0.3 in) |
Propulsion |
|
Speed |
|
Endurance | 21 days |
Test depth | 150 m (490 ft) |
Complement | 23 |
Sensors and processing systems | FAS |
Armament |
|
The Sjöormen class (Sea serpent) was a class of
Description
As built, the Sjöormen class were designed with a
As built the Sjöormen class were equipped with surface search
Swedish upgrades
In 1984–85, the Sjöormen class received upgraded Ericsson IBS-A17
Ships
Ship name | Builder | Launched | Commissioned | Status |
---|---|---|---|---|
Sjöormen | Kockums | 25 January 1967 | 31 July 1968 | sold to Singapore as RSS Centurion |
Sjölejonet | Kockums | 29 June 1967 | 16 December 1968 | sold to Singapore as RSS Conqueror |
Sjöbjörnen | Karlskrona Navy yard | 9 January 1968 | 28 February 1969 | sold to Singapore as RSS Challenger |
Sjöhunden | Kockums | 21 March 1968 | 25 June 1969 | sold to Singapore as RSS Chieftain |
Sjöhästen | Karlskrona Navy yard | 6 August 1968 | 15 September 1969 | sold to Singapore as spare parts |
Service history
The Sjöormen class were ordered by the Swedish Navy in 1961. The first boat in the class, Sjöormen, entered service in 1968. In 1992, two vessels in the class, Sjölejonet and Sjöhunden, underwent modernisation. The remaining three were supposed to remain in service until the Gotland class became operational, but due to lack of funding, all were laid up in 1993.[2]
Four submarines were sold to the Republic of Singapore Navy (RSN) in the 1990s and entered service as the Challenger class following modernisation and tropicalisation.[4][5]
References
Notes
Citations
- ^ "From a submarine point of view" (PDF). Kockums. Archived from the original (PDF) on 26 July 2011. Retrieved 18 April 2011.
- ^ a b c d e f Gardiner & Chumbley, 1995, p. 446.
- ^ a b c d Chant 1984, p. 77.
- ^ "Dr Tan Launches First Submarine in Sweden". Ministry of Defence Singapore. Retrieved 6 December 2012.
- ^ "Submarine Tropicalisation Programme". MINDEF. Retrieved 6 December 2012.
Bibliography
- Chant, Christopher (1984). Naval Forces of the World. Seacaucus, New Jersey: Chartwell Books. ISBN 0-89009-626-0.
- Gardiner, Robert; Chumbley, Stephen; Budzbon, Przemysław, eds. (1995). Conway's All the World's Fighting Ships 1947–1995. Annapolis, Maryland: Naval Institute Press. ISBN 1-55750-132-7.