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Swedish sources state the class' original length being 49.5 m, and with the AIP conversion of HSwMS Nacken in '88 adding 8 m, for 57.5 m total post-conversion length
 
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{{Other ships|HSwMS Näcken}}
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{|{{Infobox Ship Begin}}
{{Infobox Ship Image
{|{{Infobox ship begin}}
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{{Infobox ship image
|Ship image=[[File:Näcken before stirling.png|300px|HMS Näcken]]
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|Ship image=HMS Näcken (Näk) B33-8.jpg
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|Ship caption=
|Ship caption=HSwMS ''Näcken''
}}
}}
{{Infobox Ship Career
{{Infobox ship career
|Hide header=
|Hide header=
|Ship country=
|Ship country=Sweden
|Ship flag= {{shipboxflag|Sweden|naval}}
|Ship flag= {{shipboxflag|Sweden|naval}}
|Ship name= HMS ''Näcken''
|Ship name= HSwMS ''Näcken''
|Ship ordered=
|Ship ordered=1972
|Ship awarded=
|Ship awarded=22 March 1973
|Ship builder=[[Kockums]], [[Malmö]]
|Ship builder=[[Kockums]], [[Malmö]]
|Ship original cost=
|Ship original cost=
|Ship yard number=
|Ship yard number=
|Ship way number=
|Ship way number=
|Ship laid down=
|Ship laid down=November 1972
|Ship launched=17 April 1978
|Ship launched=17 April 1978
|Ship sponsor=
|Ship sponsor=
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|Ship completed=
|Ship completed=
|Ship acquired=
|Ship acquired=
|Ship commissioned=April 1980
|Ship commissioned=25 April 1980
|Ship decommissioned=
|Ship decommissioned=17 August 2001
}}
{{Infobox ship career
|Hide header=yes
|Ship recommissioned=2005
|Ship in service=
|Ship in service=
|Ship out of service=
|Ship out of service=
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|Ship nickname=
|Ship nickname=
|Ship honours=
|Ship honours=
|Ship fate=
|Ship fate=Scrapped 2016
|Ship status=In storage in [[Karlskrona]]
|Ship notes=
|Ship notes=
|Ship badge=
|Ship badge=
}}
}}
{{Infobox Ship Characteristics
{{Infobox ship career
|Hide header=title
|Ship country=Denmark
|Ship flag= {{shipboxflag|Denmark|naval}}
|Ship name= HDMS ''Kronborg''
|Ship acquired=2001
|Ship commissioned=17 August 2001
|Ship decommissioned=27 October 2004
|Ship in service=
|Ship out of service=
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|Ship renamed=
|Ship reclassified=
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|Ship refit=
|Ship struck=
|Ship reinstated=
|Ship homeport=
|Ship identification=S325
|Ship motto=
|Ship nickname=
|Ship honours=
|Ship fate=Returned to Sweden 2005
|Ship notes=
|Ship badge=
}}
{{Infobox ship characteristics
|Hide header=
|Hide header=
|Header caption=
|Header caption=
|Ship class={{sclass|Näcken|submarine}}
|Ship class={{sclass|Näcken|submarine}}
|Ship displacement={{convert|980|t|LT}} surfaced<br/>{{convert|1150|t|LT}} submerged
|Ship displacement=*{{convert|980|t|LT}} surfaced
*{{convert|1150|t|LT}} submerged
|Ship length={{convert|44|m|ftin|abbr=on}}
|Ship length={{convert|57.5|m|ftin|abbr=on}}
|Ship beam={{convert|5.7|m|ftin|abbr=on}}
|Ship beam={{convert|5.7|m|ftin|abbr=on}}
|Ship draught={{convert|5.5|m|ftin|abbr=on}}
|Ship draught={{convert|5.5|m|ftin|abbr=on}}
|Ship propulsion=*2 × MTU [[diesel engine]]s
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|Ship draft=
|Ship propulsion=2 × MTU [[diesel engine]]s<br/>1 × Jeumont-Schneider electric motor<br/>1 shaft
*1 × Jeumont-Schneider electric motor
*1 shaft
|Ship speed={{convert|20|kn|lk=in}} surfaced<br/>{{convert|25|kn}} submerged
|Ship speed=*{{convert|20|kn|lk=in}} surfaced
*{{convert|25|kn}} submerged
|Ship range=
|Ship range=
|Ship endurance=
|Ship endurance=
|Ship test depth={{convert|150|m|ft|abbr=on}}
|Ship test depth={{convert|150|m|ft|abbr=on}}
|Ship depth={{convert|300|m|ft|abbr=on}}
|Ship complement= 19 (5 officers)
|Ship complement= 19 (5 officers)
|Ship sensors=FAS
|Ship sensors=FAS
|Ship EW=
|Ship EW=
|Ship armament=• 6 × {{convert|533|mm|in|0|abbr=on}} [[torpedo tube]]s<br/>• 2 × {{convert|400|mm|in|0|abbr=on}} torpedo tubes<br/>• Mines
|Ship armament=*6 × {{convert|533|mm|in|0|abbr=on}} [[torpedo tube]]s
*2 × {{convert|400|mm|in|0|abbr=on}} torpedo tubes
*Mines
|Ship notes=
|Ship notes=
}}
}}
|}
|}
'''HMS ''Näcken'' (Näk)''' is the [[lead ship]] of [[Näcken class submarine|her class]] of [[submarine]] for the [[Swedish Navy]]. She was launched at the [[Kockums]] shipyard in [[Malmö]], [[Sweden]], on 17 April 1978, and completed and [[commission (ship)|commission]]ed into the Swedish Navy in April 1980. From 2001 to 2005, the submarine was leased to the [[Royal Danish Navy]] and operated as '''HDMS ''Kronborg'' (S325)'''. She was restored to her original name of ''Näcken'' upon her return to Swedish control.
'''HSwMS ''Näcken''''' is the [[lead ship]] of [[Näcken-class submarine|her class]] of [[submarine]] for the [[Swedish Navy]]. She was launched at the [[Kockums]] shipyard in [[Malmö]], [[Sweden]], on 17 April 1978, and completed and [[commission (ship)|commission]]ed into the Swedish Navy in April 1980. From 2001 to 2005, the submarine was leased to the [[Royal Danish Navy]] and operated as '''HDMS ''Kronborg'' (S325)'''. She was restored to her original name of ''Näcken'' upon her return to Swedish control. She was scrapped in Karlskrona during 2015–2016.

==History==
===Refit===
In November 1987, ''Näcken'' began a major refit at Kockums. This involved installing two closed circuit Tilsa Stirling diesel engines. This new diesel, the Stirling V4-275R, provides [[air-independent propulsion]] which allows the submarine to operate continuously underwater.<ref name=j1>Saunders, p.169</ref> However, in order to incorporate the new engine, the ship was lengthened by {{convert|8|m|ft}}.<ref name=g1>Gardiner & Chumbly, p.447</ref> The refit took until 6 September 1988.<ref name=j1/> The endurance of the vessel, following refit, increased to 14 days.<ref name=g1/> ''Näcken'' became the test bed for the technology which was used in the later {{sclass|Gotland|submarine|4}}.<ref name=gs>{{cite web |url= http://www.globalsecurity.org/military/world/europe/a14-nacken.htm |title=A14 Nacken |work=GlobalSecurity.org |date=5 August 2011 |accessdate=5 April 2015}}</ref>

The ship had further modifications between 1993 and 1996. This comprised improved weapon control systems, automated torpedo tube loading and new sonar.<ref name=j1/>

===Transfer to Denmark===
''Näcken'' was transferred to [[Denmark]] in 2001 as part of a deal for the design and construction of the {{sclass2|Viking|submarine|0}} project. The boat was leased by Denmark with an option to buy in 2005. Before the transfer, Denmark had the communications systems aboard upgraded. The submarine was recommissioned as ''Kronborg'' on 17 August 2001 at [[Aalborg]].<ref name=j1/> Denmark had acquired ''Kronborg'' partly to keep a submarine service and partly to train crews on air-independent propulsion in preparation for the Viking class. However, in June 2004, the Danish parliament voted to end the submarine service. On 27 October 2004, ''Kronborg'' was decommissioned at [[Karlskrona]] and returned to Sweden.<ref name=gs/>

==Notes==
{{Reflist}}


== References ==
== References ==
* {{cite book|editor1=Gardiner, Robert |editor2=Chumbley, Stephen |editor3=Budzbon, Przemysław |date=1995 |title=Conway's All the World's Fighting Ships 1947-1995 |location=Annapolis, Maryland |publisher=Naval Institute Press |isbn=1-55750-132-7}}
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* http://www.miramarshipindex.org.nz/ship/list?IDNo=6129608&search_op=OR
* {{cite book|title=Jane's Fighting Ships 2004-2005 |editor=Saunders, Stephen |date=July 2004 |publisher=Jane's Information Group |isbn=0710626231}}
* http://www.kockums.se/submarines/nacken.html
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* [http://www.miramarshipindex.org.nz/ship/list?IDNo=6129608&search_op=OR Miramar ship index] {{subscription required}}


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{{Kockums Naval Solutions}}

{{Näcken class submarine}}
{{Näcken class submarine}}
{{Authority control}}


{{DEFAULTSORT:Nacken}}
{{DEFAULTSORT:Nacken (1978)}}
[[Category:Näcken class submarines]]
[[Category:Näcken-class submarines]]
[[Category:Ships built in Sweden]]
[[Category:Ships built in Malmö]]
[[Category:1978 ships]]
[[Category:1978 ships]]
[[Category:Näcken class submarines of the Royal Danish Navy]]
[[Category:Näcken-class submarines of the Royal Danish Navy]]


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{{submarine-stub}}


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{{submarine-stub}}
[[da:S325 Kronborg]]
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[[sv:HMS Näcken (Näk)]]

Latest revision as of 12:51, 3 June 2023

For other ships with the same name, see HSwMS Näcken.
HSwMS Näcken
History
Sweden
NameHSwMS Näcken
Ordered1972
Awarded22 March 1973
BuilderKockums, Malmö
Laid downNovember 1972
Launched17 April 1978
Commissioned25 April 1980
Decommissioned17 August 2001
Recommissioned2005
FateScrapped 2016
Denmark
NameHDMS Kronborg
Acquired2001
Commissioned17 August 2001
Decommissioned27 October 2004
IdentificationS325
FateReturned to Sweden 2005
General characteristics
Class and typeNäcken-class submarine
Displacement
  • 980 tonnes (960 long tons) surfaced
  • 1,150 tonnes (1,130 long tons) submerged
Length57.5 m (188 ft 8 in)
Beam5.7 m (18 ft 8 in)
Draught5.5 m (18 ft 1 in)
Depth300 m (980 ft)
Propulsion
  • 2 × MTU diesel engines
  • 1 × Jeumont-Schneider electric motor
  • 1 shaft
Speed
  • 20 knots (37 km/h; 23 mph) surfaced
  • 25 knots (46 km/h; 29 mph) submerged
Test depth150 m (490 ft)
Complement19 (5 officers)
Sensors and
processing systems		FAS
Armament
  • 6 × 533 mm (21 in) torpedo tubes
  • 2 × 400 mm (16 in) torpedo tubes
  • Mines

HSwMS Näcken is the lead ship of her class of submarine for the Swedish Navy. She was launched at the Kockums shipyard in Malmö, Sweden, on 17 April 1978, and completed and commissioned into the Swedish Navy in April 1980. From 2001 to 2005, the submarine was leased to the Royal Danish Navy and operated as HDMS Kronborg (S325). She was restored to her original name of Näcken upon her return to Swedish control. She was scrapped in Karlskrona during 2015–2016.

History

[edit]

Refit

[edit]

In November 1987, Näcken began a major refit at Kockums. This involved installing two closed circuit Tilsa Stirling diesel engines. This new diesel, the Stirling V4-275R, provides air-independent propulsion which allows the submarine to operate continuously underwater.[1] However, in order to incorporate the new engine, the ship was lengthened by 8 metres (26 ft).[2] The refit took until 6 September 1988.[1] The endurance of the vessel, following refit, increased to 14 days.[2] Näcken became the test bed for the technology which was used in the later Gotland class.[3]

The ship had further modifications between 1993 and 1996. This comprised improved weapon control systems, automated torpedo tube loading and new sonar.[1]

Transfer to Denmark

[edit]

Näcken was transferred to Denmark in 2001 as part of a deal for the design and construction of the Viking-class project. The boat was leased by Denmark with an option to buy in 2005. Before the transfer, Denmark had the communications systems aboard upgraded. The submarine was recommissioned as Kronborg on 17 August 2001 at Aalborg.[1] Denmark had acquired Kronborg partly to keep a submarine service and partly to train crews on air-independent propulsion in preparation for the Viking class. However, in June 2004, the Danish parliament voted to end the submarine service. On 27 October 2004, Kronborg was decommissioned at Karlskrona and returned to Sweden.[3]

Notes

[edit]
  1. ^ a b c d Saunders, p.169
  2. ^ a b Gardiner & Chumbly, p.447
  3. ^ a b "A14 Nacken". GlobalSecurity.org. 5 August 2011. Retrieved 5 April 2015.

References

[edit]
  • 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.
  • Saunders, Stephen, ed. (July 2004). Jane's Fighting Ships 2004-2005. Jane's Information Group. ISBN 0710626231.
  • Miramar ship index (subscription required)


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