View source for ROKS Dosan Ahn Changho

{{short description|Dosan Ahn Changho-class submarine}}
{{Use dmy dates|date=November 2020}}
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{{Infobox ship image
| Ship image = The voyage of ROKS Dosan Ahn Changho submarine - 1.jpg
| Ship caption = ROKS Dosan Ahn Changho
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{{Infobox ship career
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| Ship country = South Korea
| Ship flag = {{Shipboxflag|South Korea|naval}}
| Ship name = *''Dosan Ahn Changho'' 
*(도산안창호)
| Ship namesake = [[Ahn Changho|Dosan Ahn Changho]]
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| Ship builder = [[DSME]], [[Geoje]]
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| Ship laid down = 17 May 2016
| Ship launched = 14 September 2018
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| Ship commissioned = Expected, 2022
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| Ship homeport = 
| Ship identification = [[Pennant number]]: SS-083
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| Ship fate = 
| Ship status = Fitting out
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{{Infobox ship characteristics
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| Ship class = {{sclass|Dosan Ahn Changho|submarine}}
| Ship displacement = * 3,358 tons surfaced
* 3,750 tons submerged
| Ship length = {{convert|83.5|m|ftin|abbr=on}}
| Ship beam = {{convert|9.6|m|ftin|abbr=on}}
| Ship draft = 
| Ship draught = {{convert|7.62|m|ftin|abbr=on}}
| Ship propulsion = *Diesel-electric, low noise skew back propeller
*4 x Bumhan Industry PH1 PEM fuel cell each with 150&nbsp;kW
| Ship speed = *{{convert|12|kn|lk=in}} surfaced
*{{convert|20|kn}} submerged
| Ship range = {{cvt|10,000|nmi|lk=in}}
| Ship endurance = 50 days
| Ship complement = 50
| Ship sensors = 
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| Ship armament = * 6 x {{cvt|533|mm|in|0}} [[torpedo tube]]s (Tiger Shark torpedo and [[Harpoon (missile)|Harpoon]])
* 6 x [[Vertical launching system|VLS]] tubes (Cruise and ballistic missile)
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'''ROKS ''Dosan Ahn Changho'' (SS-083)''' is the [[lead ship]] of {{sclass|Dosan Ahn Changho|submarine}}s. She is expected to be [[Ship commissioning|commissioned]] in 2020.

== Development and design ==

The ''Dosan Ahn Changho'' class are equipped with the [[Korean Vertical Launching System]] which will be able to carry up to ten indigenous "Chonryong" [[Cruise missiles|land-attack cruise missiles]] and "Hyunmoo" [[submarine-launched ballistic missiles]] (SLBM),<ref name="td">{{cite web |last=Gady |first=Franz-Stefan |date=18 June 2019 |title=South Korea's First-of-Class KSS-III Attack Sub Begins Sea Trials |url=https://thediplomat.com/2019/06/south-koreas-first-of-class-kss-iii-attack-sub-begins-sea-trials/ |url-status=live |archive-url=https://web.archive.org/web/20231002183844/https://thediplomat.com/2019/06/south-koreas-first-of-class-kss-iii-attack-sub-begins-sea-trials/ |archive-date=2 October 2023 |access-date=24 November 2020 |work=The Diplomat}}</ref> becoming the first submarines in the South Korean navy to have this kind of capability. They will also have many other improvements compared to their predecessors built with a greater degree of South Korean technology, especially in the later batches, which will include [[Samsung SDI]] [[lithium-ion batteries]].<ref>{{cite web |date=6 May 2019 |title=South Korea approves procurement of next batch of Aegis destroyers, subs |url=https://navaltoday.com/2019/05/06/south-korea-approves-procurement-of-next-batch-of-aegis-destroyers-subs/ |url-status=dead |archive-url=https://web.archive.org/web/20230504225036/https://www.navaltoday.com/2019/05/06/south-korea-approves-procurement-of-next-batch-of-aegis-destroyers-subs/ |archive-date=4 May 2023 |access-date=24 November 2020 |work=Naval Today}}</ref><ref>{{cite web |date=28 December 2018 |title=DSME Jangbogo-III Batch-II Pilot Design Has Come to an End |url=https://www.navyrecognition.com/index.php/news/defence-news/2018/december/6720-dsme-jangbogo-iii-batch-ii-pilot-design-has-come-to-an-end.html |url-status=live |archive-url=https://web.archive.org/web/20230429220520/https://navyrecognition.com/index.php/news/defence-news/2018/december/6720-dsme-jangbogo-iii-batch-ii-pilot-design-has-come-to-an-end.html |archive-date=29 April 2023 |access-date=24 November 2020 |work=Navy Recognition}}</ref> Measured to [[Displacement (ship)|displace]] over {{convert|3800|t|LT|lk=in}} submerged during [[sea trial]]s,<ref name="janes">{{cite web |last=Rahmat |first=Ridzwan |date=17 June 2019 |title=South Korea's first KSS-3 submarine begins sea trials |url=https://www.janes.com/article/89283/south-korea-s-first-kss-3-submarine-begins-sea-trials |url-status=dead |archive-url=https://web.archive.org/web/20190618131220/https://www.janes.com/article/89283/south-korea-s-first-kss-3-submarine-begins-sea-trials |archive-date=18 June 2019 |access-date=14 November 2020 |work=Jane's}}</ref> they are the largest conventional submarines ever built by [[South Korea]]. The Batch II vessels will increase their displacement by approximately {{cvt|450|t|LT}} ({{cvt|4,250|t|LT|disp=comma}} submerged), according to the [[Defense Acquisition Program Administration]].<ref>{{cite web |last=Jeong |first=Jeff |date=2 May 2019 |title=South Korea to build 3 more Aegis destroyers able to thwart ballistic missiles |url=https://www.defensenews.com/naval/2019/05/02/south-korea-to-build-3-more-aegis-destroyers-able-to-thwart-ballistic-missiles/ |url-status=live |archive-url=https://archive.today/20240115230606/https://www.defensenews.com/naval/2019/05/02/south-korea-to-build-3-more-aegis-destroyers-able-to-thwart-ballistic-missiles/ |archive-date=15 January 2024 |access-date=24 November 2020 |work=Defense News}}</ref>

==Construction and career==
''Dosan Ahn Changho'' was [[Keel laying|laid down]] on 17 May 2016 at [[DSME]], [[Geoje]] and [[Ceremonial ship launching|launched]] on 14 September 2018. She began her [[sea trial]]s in 2019 and expected to be [[Commissioned (ship)|commissioned]] in 2022.<ref name="janes"/> On 15 September 2021, she was reported to have successfully fired a new submarine launched ballistic missile (SLBM) while submerged.

==References==
{{Reflist}}

{{Commons category|ROKS Dosan Ahn Changho (SS-083)}}

{{Dosan Ahn Changho class submarine}}
{{Republic of Korea Navy ships}}

{{DEFAULTSORT:Dosan Ahn Changho (SS-083)}}
[[Category:Dosan Ahn Changho-class submarines|Dosan Ahn Changho ]]
[[Category:Attack submarines]]
[[Category:2018 ships]]
[[Category:Submarines of South Korea]]