HSwMS Sjöhunden (Shu): Difference between revisions

	HSwMS Sjöhunden underway between 1968-1997
History
Sweden
Name	HSwMS Sjöhunden
Ordered	1966
Builder	Karlskrona naval base
Launched	21 March 1968
Commissioned	25 July 1969
Decommissioned	1997
Motto	Cave canem ("Beware of the dog")
Nickname(s)	Shu
Fate	Sold to Singapore in 1997
Singapore
Name	RSS Chieftain
Namesake	Cheiftain
Acquired	28 May 1999
Commissioned	26 June 2004
Decommissioned	11 March 2015
Homeport	Changi Naval Base, Singapore
Status	Active
General characteristics
Class and type	Template:Sclass-
Displacement	1,130 t (1,112 long tons) surfaced; 1,210 t (1,191 long tons) submerged;
Length	50.5 m (165 ft 8 in)
Beam	6.1 m (20 ft 0 in)
Draught	5.8 m (19 ft 0 in)
Propulsion	2 × Hedemora Diesel generators; 1 × electric motor; 1 shaft;
Speed	20 knots (23 mph; 37 km/h)
Complement	25 officers and enlisted
Armament	4 × (533 mm (21 in) torpedo tubes); 2 × (400 mm (16 in) torpedo tubes);

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Revision as of 04:07, 30 July 2020

HSwMS Sjöhunden (Shu), Sw. meaning sea dog, was the second ship of the Swedish submarine class Sjöormen, project name A11.^[1]

Development

The planning of the class included a number of different AIP-solutions including nuclear propulsion, however the ships where finally completed with for the time extremely large batteries.^[2] The ship was a single hull submarine, with hull shape influenced by the American experimental submarine USS Albacore (AGSS-569). The hull was covered with rubber tiles to reduce the acoustic signature (Anechoic tiles), at this time a pioneer technology. The Sjöormen-class also pioneered the use of an x-shaped (as opposed to cross-shaped) rudder as a standard (as opposed to experimental) feature.^[3]^[4]

Service in Sweden

The submarine served in the Swedish Navy for almost 30 years and was then sold to Singapore in 1997 together with its four sister ships.

Service in Singapore

HSwMS Sjöbjörnen was renamed RSS Challenger and Singapore racquired the boat on 28 May 1999. She was commissioned on 26 June 2004 after a major refit. After 11 years in the Republic of Singapore Navy, she was in active service as of 2020.

Gallery

HSwMS Sjöhunden & RSS Chieftain Gallery
HSwMS Sjöhunden being launched on 21 March 1968.

References

^ "HMS Sjöhunden (Shu)", Wikipedia (in Swedish), 2020-01-22, retrieved 2020-07-30
^ "HMS Sjöhunden (Shu) - sv.LinkFang.org". sv.linkfang.org (in Swedish). Retrieved 2020-07-30.
^ "CHALLENGER CLASS SUBMARINE". Ministry of Defense Singapore. Retrieved 29 July 2020.{{cite news}}: CS1 maint: url-status (link)
^ "SJÖHUNDEN (1968) [sv] - KulturNav". kulturnav.org. Retrieved 2020-07-30.

[1] "HMS Sjöhunden (Shu)", Wikipedia (in Swedish), 2020-01-22, retrieved 2020-07-30

[2] "HMS Sjöhunden (Shu) - sv.LinkFang.org". sv.linkfang.org (in Swedish). Retrieved 2020-07-30.

[3] "CHALLENGER CLASS SUBMARINE". Ministry of Defense Singapore. Retrieved 29 July 2020.{{cite news}}: CS1 maint: url-status (link)

[4] "SJÖHUNDEN (1968) [sv] - KulturNav". kulturnav.org. Retrieved 2020-07-30.

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