View source for Jang Bogo-class submarine

{{short description|Submarine class}}
{|{{Infobox ship begin
}}
{{Infobox ship image
| Ship image = ChangBogoSSK061Typ209Uboat.jpg
| Ship caption = [[South Korea|Republic of Korea]] (ROK) ''Jang Bogo'' Type 209/1200 Submarine ''Jang Bogo'' heads out to sea during exercise Rim of the Pacific ([[RIMPAC]]) 2004.
}}
{{Infobox ship class overview
| Name = ''Jang Bogo'' class
| Origin = {{flag|Germany}}
| Builders = *[[Howaldtswerke-Deutsche Werft]]
*[[Daewoo Shipbuilding & Marine Engineering]]<ref name="navalinstitute2007">{{cite book | last = Wertheim | first = Eric | title = Naval Institute Guide to Combat Fleets of the World: Their Ships, Aircraft, and Systems (Naval Institute Guide to Combat Fleets of the World) | publisher = US Naval Institute Press | year = 2007 | page = 1067 | isbn = 978-1-59114-955-2}}</ref>
*[[PT PAL Indonesia|PT PAL]]<ref>{{cite web|archive-url=https://web.archive.org/web/20170502060418/https://thediplomat.com/2016/03/south-korea-launches-first-indonesian-stealth-submarine/|url=https://thediplomat.com/2016/03/south-korea-launches-first-indonesian-stealth-submarine/|publisher=The Diplomat|archive-date=2017-05-02|date=2016-03-29|author=Franz-Stefan Gady|title=South Korea Launches First Indonesian Stealth Submarine }}</ref>
| Operators = *{{navy|South Korea}}
*{{naval|IDN}}
| Class before = 
| Class after = [[Type 214 submarine]]
| Subclasses = {{sclass|Nagapasa|submarine|4}}
| Cost = *$373M<ref name=KT/> per vessel (Nagapasa-class Batch-1, 2011 April)
*$340M<ref name=NagapasaBatchII/> per vessel (Nagapasa-class Batch-2, 2019 December)
| Built range = 
| In service range = 
| In commission range = 1993&ndash;present
| Total ships building = 
| Total ships planned = 15
| Total ships completed = 12
| Total ships cancelled = 
| Total ships active = 11
| Total ships laid up = 1
| Total ships lost = 
| Total ships retired = 
| Total ships preserved = 
}}
{{Infobox ship characteristics
| Hide header = 
| Header caption = 
| Ship displacement = 1200–1400 tons
| Ship length =*{{convert|56|m|abbr=on}} (original)
*{{convert|61.3|m|abbr=on}} (stretched version Nagapasa-class)
| Ship beam = {{convert|6.3|m|abbr=on}}
| Ship draft = {{convert|5.5|m|abbr=on}}
| Ship propulsion = *4 MTU Type 8V396 SE [[diesel engine]]s
*1 Siemens electric motor
*1 shaft
*{{convert|5,000|shp|kW|abbr=on}}
| Ship speed = *{{convert|11|kn}} surfaced
*{{convert|21.5|kn}}  submerged {{citation needed|date=May 2012}}
| Ship range = *{{convert|11,000|nmi|abbr=on}} at {{convert|10|kn|abbr=on}} surfaced,
*{{convert|8,000|nmi|abbr=on}} at {{convert|10|kn|abbr=on}} [[Submarine snorkel|snorkeling]],
*{{convert|400|nmi|abbr=on}} at {{convert|4|kn|abbr=on}}, submerged
| Ship endurance = 50 days
| Ship test depth = {{convert|500|m|abbr=on}}
| Ship boats = 
| Ship capacity = 
| Ship complement = 33
| Ship time to activate = 
| Ship sensors = 
| Ship EW = 
| Ship armament = *8 × {{convert|21|in|mm|abbr=on|0}} [[torpedo tube]]s
*14 [[SUT torpedo|SUT torpedoes]]
*[[Harpoon (missile)|UGM-84 Harpoon]] anti-ship missile integration
| Ship armor = 
| Ship aircraft = 
| Ship notes = 
}}
|}

The '''''Jang Bogo''-class submarine''' ([[Hangul]]: 장보고급 잠수함, [[Hanja]]: 張保皐級潛水艦) or '''KSS-I''' ('''Korean Submarine-I''') is a variant of the [[Type 209 submarine|Type 209]] diesel-electric [[attack submarine]] initially developed by [[Howaldtswerke-Deutsche Werft|Howaldtswerke-Deutsche Werft (HDW)]] of [[Germany]], intended for service with the [[Republic of Korea Navy|South Korean Navy]] and [[Indonesian Navy]]. A [[Daewoo Shipbuilding & Marine Engineering|Daewoo]] (DSME)-upgraded model of the ''Jang Bogo'' class Type 209 was exported by Korea to Indonesia in 2012, amid heavy competition from Russian, French, and German-Turkish consortiums including from Germany's original Type 209.<ref name="KT">{{Cite web |date=2011-12-20 |title=Korea wins $1 bil. Indonesian deal |url=https://www.koreatimes.co.kr/www/tech/2023/09/419_101248.html |url-status=live |archive-url=https://archive.today/20230911004714/https://www.koreatimes.co.kr/www/tech/2023/09/419_101248.html |archive-date=2023-09-11 |access-date=2023-09-11 |website=koreatimes |language=en}}</ref> The variant was considered for possible purchase by Thailand as well, as both newly built and second-hand options.<ref>{{cite web |date=10 July 2014 |title=Thailand Nixes Second-Hand U206 Submarine Deal But Stands up a Sub Squadron |url=http://www.defenseindustrydaily.com/Thailands-New-Second-Hand-Submarines-06817/ |url-status=live |archive-url=https://archive.today/20120729013934/http://www.defenseindustrydaily.com/Thailands-New-Second-Hand-Submarines-06817/ |archive-date=29 July 2012 |access-date=11 September 2023 |website=Defense Industry Daily}}</ref> The class is named for ancient Korean maritime figure [[Jang Bogo]].

== Armaments ==
The ''Jang Bogo''-class submarines are armed with eight [[Bow (ship)|bow]] {{convert|533|mm|in|abbr=on|0}} [[torpedo tube]]s and fourteen torpedoes. The ships are also armed with [[Harpoon (missile)|Sub-Harpoon]] missiles and can be armed with 28 [[Naval mine|mines]] in place of torpedoes and Harpoon missiles.<ref name="janeswarshipguide">{{cite book | last = Watts | first = Anthony | title = Jane's Warship Recognition Guide | publisher = Harpercollins | year = 2006 | page = 384 | isbn = 978-0-00-718327-2}}</ref> The class is armed with SUT - Surface and Underwater Target Torpedoes.

== Upgrades ==
The South Korean ''Jang Bogo''-class submarines, originally based on Type 209/1200, had reportedly been heavily upgraded from a time early in the 21st century,<ref>{{cite web|url=http://www.military-today.com/navy/chang_bogo_class.htm|title=Chang Bogo Class Patrol Submarine - Military-Today.com|last=ARG|website=www.military-today.com}}</ref> which if properly undertaken was supposed to include domestic hull stretch augmentation from 1,200 tons to 1,400 tons, and installment of domestically developed Torpedo Acoustic Counter Measures (TACM).<ref name=janes>{{cite web|url=http://articles.janes.com/articles/Janes-Navy-International-99/SOUTH-KOREAN-SUBMARINE-ARRIVES-AT-PEARL-HARBOR.html|title=Defense & Security Intelligence & Analysis: IHS Jane's - IHS|website=articles.janes.com}}</ref><ref name=lig>{{cite web|url=http://www.tradekorea.com/e-catalogue/nex1future/product-detail/P00052097/Underwater+Weapon+System.html|title=www.tradeKorea.com|website=www.tradekorea.com|access-date=2018-03-24|archive-url=https://web.archive.org/web/20141219214903/http://www.tradekorea.com/e-catalogue/nex1future/product-detail/P00052097/Underwater%20Weapon%20System.html|archive-date=2014-12-19|url-status=dead}}</ref> These upgrades could have been affected due to Korean economic problems of the late 1990s, which affected other plans to acquire nine 1,500-ton [[Air-independent propulsion|AIP]]-equipped boats or upgrade six 1200 boats to 1,500-tons AIP-equipped boats,<ref name=janes /><ref name="nana">{{cite book | last = Kim | first = Duk-Ki | title = Naval Strategy in Northeast Asia: Geo-strategic Goals, Policies and Prospects | publisher = Routledge | year = 2000 | page = 30 | isbn = 978-0-7146-4966-5 }}</ref><ref name="EastAsian">{{cite book | last = Meconis  | first = Charles |author2=Wallace | title = East Asian Naval Weapons Acquisitions in the 1990s: Causes, Consequences, and Responses | publisher = Praeger  | year = 2000 | page = 229 | isbn = 978-0-275-96251-7}}</ref> although the more ambitious plan to acquire nine 1,800-ton [[Type 214 submarine|Type 214]] AIP submarines was preserved and put under progress, which will reportedly be wrapped up in 2018 when all submarines of the type are scheduled to be commissioned. Outfitting the submarines with Sub-Harpoon launching capability was a part of the upgrade,<ref name=janes /> and this seems to have been properly carried out by 2002 on at least one submarine. By 2007, ''Na Daeyong'' and ''Lee Eokgi'' were demonstrated to have the capability.<ref name="navalinstitute2007" /><ref>{{cite web|url=http://archives.starbulletin.com/2002/07/19/news/story10.html|title=Honolulu Star-Bulletin Hawaii News|website=archives.starbulletin.com}}</ref> In the 2008 RIMPAC the submarine Lee Sunshin also demonstrated its sub-harpoon capability.<ref>[https://archive.today/20120716113355/http://kookbang.dema.mil.kr/kdd/ColumnTypeView.jsp?writeDate=20080919&writeDateChk=20080807&menuCd=2001&menuSeq=1&kindSeq=3&menuCnt=30912 RIMPAC Exercise and Republic of Korea Navy]</ref> By 2009 it was reported that nine South Korean-modified 1,400-ton Type 209 submarines were in service with the ROKN.<ref>{{cite web|url=http://www.seapower-digital.com/seapower/seapower_sample/?pg=52#pg52|archive-url=https://web.archive.org/web/20081227095428/http://www.seapower-digital.com/seapower/seapower_sample/?pg=52#pg52|archive-date=December 27, 2008|title=Seapower - February 2008 - 52|url-status=usurped|website=www.seapower-digital.com}}</ref><ref>[https://www.koreatimes.co.kr/www/news/biz/2009/07/123_48078.html Indonesian Redtape Torpedoes Sub Sale Bid] </ref> As of 2011 they were reported to be 1,200-ton Type 209 submarines.<ref name=SagemKSS-1>[http://www.sagem-ds.com/spip.php?article948 Sagem to modernize navigation system on South Korea's KSS-1 submarines] {{webarchive |url=https://web.archive.org/web/20120510074703/http://www.sagem-ds.com/spip.php?article948 |date=May 10, 2012 }}</ref><ref name=Changbogoclass>{{cite web|url=http://navy.mil.kr/english/sub_guide/sub_data.jsp?menu=3&smenu=3|title=알림메세지|website=navy.mil.kr}}</ref> They can equip the [[Baek Sang Eo (White Shark) torpedo|White Shark]] heavy torpedo,<ref name=lig /><ref>{{cite web|url=http://www.deagel.com/Torpedoes/White-Shark_a002651001.aspx|title=White Shark|website=www.deagel.com}}</ref><ref>{{cite web|url=http://www.dcnews.in/news_list.php?code=society&id=613021&curPage=&s_title=&s_body=&s_name=&s_que=&page=1|title=South Korea's weapons story Domestic torpedo Great White}}</ref> and can possibly equip submarine-launched [[Hae Sung]] anti-ship missiles later on.<ref>{{cite web|url=http://www.globalsecurity.org/military/world/rok/haesung.htm|title=ASM/SSM-700K Sea Star (Haesung / Haeseong / Haesong)|first=John|last=Pike}}</ref><ref>{{cite web|url=http://articles.janes.com/articles/Janes-Strategic-Weapon-Systems/Hae-Seong-ASM-SSM-700K-Korea-South.html|title=Defense & Security Intelligence & Analysis: IHS Jane's - IHS|website=articles.janes.com|access-date=2012-03-02|archive-date=2012-05-09|archive-url=https://web.archive.org/web/20120509202738/http://articles.janes.com/articles/Janes-Strategic-Weapon-Systems/Hae-Seong-ASM-SSM-700K-Korea-South.html|url-status=dead}}</ref> LIG Nex1 began producing TACM for unspecified submarine types of the ROKN as well, which finished development in 2000.<ref name="lig" /><ref>[http://www.lignex1.com:8001/eng/business/business02_04_10.jsp LIG Nex1 TACM] {{webarchive |url=https://web.archive.org/web/20151012000838/http://www.lignex1.com:8001/eng/business/business02_04_10.jsp |date=October 12, 2015 }}</ref> AIP and flank-array sonars are planned for future modernizations.<ref name=Changbogoclass /> The ''Jang Bogo'' class offered to Indonesia will already be in stretched and augmented forms including guided missile-launching capabilities and a surface displacement of 1400 tons, quite similar to the original plan to upgrade the existing ''Jang Bogo''-class submarines of ROKN to similar specifications.<ref name=KT/>

A science documentary by [[Educational Broadcasting System|EBS]] reported that ''Jang Bogo''-class submarines will undergo major generational overhaul and refit every eight to twelve years. The overhaul and refit involves periodic cutting, complete disassembly, and re-welding of the hull for the upgrade or total replacement of the submarine's old engines, navigational equipment, batteries, and other essential equipment with their modern counterparts. Hull stretch may also have taken place in some of the ''Jang Bogo''-class vessels since the early 2000s, but it has neither been completely confirmed nor denied. Some ''Jang Bogo''-class vessels are demonstrated to have sub-Harpoon launching capability when previously the class was lacking it. ROKN is committed to build and maintain a submarine force of 26 attack submarines until 2025, excluding small and midget submarines, though it is not clear how many submarines among those will belong to the ''Jang Bogo'' class.<ref>{{cite web|url=http://www.heritage.org/research/reports/2010/02/~/media/Images/Reports/2010/b2367_map1/b2367_map1.ashx|title=Attack Submarine Deployments in the Pacific|url-status=dead|archive-url=https://web.archive.org/web/20110403055319/http://heritage.org/Research/Reports/2010/02/~/media/Images/Reports/2010/b2367_map1/b2367_map1.ashx|archive-date=2011-04-03}}</ref> The oldest commissioned ''Jang'' ''Bogo-''class submarine by then will be 32 years old.

[[Lithium-ion battery]] power stacks are being developed to increase the underwater endurance of ''Jang Bogo''-class submarines by two to three times, offering four to five times the power density of Type 209's current lead-acid batteries and as much as twice the power density of Type 214's BZM 120 fuel cells.<ref>{{cite web|url=http://cfile279.uf.daum.net/image/1563B94F4DBD4E273553CD|title=Effectiveness of Lithium-Ion Battery Technology to ROK Submarine Force}}</ref><ref>{{cite web|url=http://cfile295.uf.daum.net/image/120B76434DBD4F8216B0EB|title=Comparison of Lead-Acid Battery and Lithium-Ion Batteries for Type 209}}</ref>

== Sales ==

In December 2011, DSME won a contract to build 3 1,400-ton ''Chang Bogo''-class submarines for Indonesia at a cost of $1.07 billion.<ref>{{cite web|url=http://www.thejakartapost.com/news/2011/12/22/ri-orders-3-submarines-worth-1b-regional-catch.html|title=RI orders 3 submarines worth $1b in regional 'catch-up'|first=The Jakarta|last=Post}}</ref> Construction of the submarines will start in January 2012 for delivery by 2015 and 2016, for commissioning in the first half of 2018. They'll be equipped with torpedoes and guided missiles.<ref>{{cite web|url=http://www.defensenews.com/story.php?i=8625583&c=ASI&s=SEA|archive-url=https://archive.today/20130121133901/http://www.defensenews.com/story.php?i=8625583&c=ASI&s=SEA|url-status=dead|archive-date=2013-01-21|title=South Korea Exports Submarines to Indonesia}}</ref><ref>{{cite web |url=http://www.navyrecognition.com/index.php/news/defence-news/year-2013-news/november-2013-navy-naval-forces-maritime-industry-technology-security-global-news/1371-sagem-navigation-system-selected-by-dsme-of-south-korea-for-indonesian-submarines-.html |title=Sagem navigation system selected by DSME of South Korea for Indonesian submarines |date=November 25, 2013}}</ref> The submarines are described to be Korea's original model, bigger and more advanced than Indonesia's refurbished Type 209/1300.<ref name=KT/> Initially the offered submarines were going to be in-service ROKN submarines.<ref>{{cite web|url=http://articles.janes.com/articles/Janes-Defence-Weekly-2008/Indonesia-South-Korea-consider-submarine-and-aircraft-exchange.html|title=Defense & Security Intelligence & Analysis: IHS Jane's - IHS|website=articles.janes.com|access-date=2012-03-02|archive-date=2012-05-09|archive-url=https://web.archive.org/web/20120509202544/http://articles.janes.com/articles/Janes-Defence-Weekly-2008/Indonesia-South-Korea-consider-submarine-and-aircraft-exchange.html|url-status=dead}}</ref> The sale will be done without the involvement of German companies.<ref name="turkeygermany209">{{cite web|url=http://www.hurriyetdailynews.com/n.php?n=turkey-germany-seek-submarine-sale-of-1-bln-2011-08-26|title=Hürriyet Daily News|website=Hürriyet Daily News}}</ref> South Korea is currently the only country outside Germany independently offering the Type 209 for sale. Indonesia was also offered two license built Type 209 submarines manufactured by a group of Turkish (SSM - Undersecretariat for Defense Industries) and German companies (HDW/ThyssenKrupp), a deal reported to be valued at $1 billion.<ref>{{cite web|url=http://www.hurriyetdailynews.com/n.php?n=turkey-denies-losing-deal-for-indonesian-navy-submarines-2011-10-26|title=Hürriyet Daily News|website=Hürriyet Daily News}}</ref> SSM was also offering the leases of Type 209 submarines until new submarines could be completed.<ref name="turkeygermany209" /> The offer has since been superseded by the DSME submarine contract. In early 2012, the Korean defense firm [[LIG Nex1]] exhibited its latest suite of indigenously developed submarine sensors, submarine combat systems, and heavy-weight torpedoes and wire-guided torpedoes in Indonesia for potential use by the Indonesian Navy's submarine forces.<ref>{{cite web|url=https://www.youtube.com/watch?v=Vlpq8u_P1Kk|title=Presentasi LIG Nex1.mp4|last=Batik Photography|date=18 January 2012|via=YouTube}}</ref>

==Improved ''Jang Bogo'' class==
In 2011, DSME signed a contract with Indonesia on for the supply of three Improved ''Jang Bogo''-class submarines. These submarines will be equipped with [[Atlas Elektronik]] CSU 90 hull-mounted passive and active search-and-attack sonar and flank sonar arrays, [[Indra Sistemas|Indra]]'s Pegaso RESM system and Aries low-probability of intercept radar,<ref>{{cite web|url=http://www.indracompany.com/en/noticia/indra-to-implement-its-technology-in-indonesias-type-209-submarines-for-more-than-10m |title=Indra to implement its technology in Indonesia's type 209 submarines for more than €10M &#124; Indra |access-date=2014-12-19 |url-status=dead |archive-url=https://web.archive.org/web/20141219205210/http://www.indracompany.com/en/noticia/indra-to-implement-its-technology-in-indonesias-type-209-submarines-for-more-than-10m |archive-date=2014-12-19 }}</ref> [[L3 Technologies|L3]]'s MAPPS integrated platform management systems<ref>{{Cite web |url=http://www.mapps.l-3com.com/newsletters/MCN22.pdf |title=Archived copy |access-date=2014-01-01 |archive-url=https://web.archive.org/web/20140102192539/http://www.mapps.l-3com.com/newsletters/MCN22.pdf |archive-date=2014-01-02 |url-status=dead }}</ref> and [[Safran]]'s Sigma 40XP [[Inertial navigation system|inertial navigation systems]].<ref>{{cite web|url=http://www.navyrecognition.com/index.php?option=com_content&task=view&id=1371|title=Sagem navigation system selected by DSME of South Korea for Indonesian submarines|date=25 November 2013|access-date=1 January 2014|archive-date=2 January 2014|archive-url=https://web.archive.org/web/20140102194327/http://www.navyrecognition.com/index.php?option=com_content&task=view&id=1371|url-status=dead}}</ref>

The improved submarines are also known as {{sclass|Nagapasa|submarine|1}}s.<ref>{{cite news |last1=Rahmat |first1=Ridzan |title=Launch of Indonesia's third Nagapasa-class submarine delayed by silting {{!}} Jane's 360 |url=https://www.janes.com/article/86871/launch-of-indonesia-s-third-nagapasa-class-submarine-delayed-by-silting |access-date=12 April 2019 |work=Janes360 |date=26 February 2019}}</ref>

In 2019, South Korea signed another contract worth US$1.02 billion to sell three 1,400-ton submarines to Indonesia<ref name=NagapasaBatchII>{{cite news |title=S. Korea signs contract to export 3 submarines to Indonesia {{!}} Yonhap News Agency |url=https://en.yna.co.kr/view/AEN20190412004800315 |access-date=12 April 2019 |work=Yonhap News Agency|date=12 April 2019}}</ref> and would be supported through a loan agreement.<ref>{{cite news |title=DSME to deliver three more submarines to Indonesia {{!}} Jane's 360  |url=https://www.janes.com/article/87858/dsme-to-deliver-three-more-submarines-to-indonesia |access-date=12 April 2019 |work=Janes360 |date=12 April 2019}}</ref>

==Incidents==
On July 15, 2020 05:00 UTC, the Norwegian merchant ship ''Hoegh London'' (IMO 9342205) collided with an unknown South Korean Jang Bogo-class submarine near Gadeokdo Island, Busan, South Korea.<ref>[https://www.maritimebulletin.net/2020/07/17/norwegian-car-carrier-collided-with-korean-submarine/ Norwegian car carrier collided with Korean submarine] {{Webarchive|url=https://web.archive.org/web/20210112203754/http://www.maritimebulletin.net/2020/07/17/norwegian-car-carrier-collided-with-korean-submarine/ |date=2021-01-12 }} Maritime Bulletin. Mikhail Voytenko. July 17, 2020.  Retrieved August 23, 2020.</ref><ref>[https://newsis.com/view/?id=NISX20200819_0001135212 해군 잠수함-노르웨이 상선 충돌사고…'교신 오류'가 원인] (in Korean) Newsis. August 20, 2020. Retrieved August 23, 2020.</ref>

== Boats in class ==
{| class="wikitable sortable" border="1"
|-
! scope="col" | Country
! scope="col" | Type
! scope="col" class="unsortable" | Pennant
! scope="col" | Name
! scope="col" | Commissioned
|-
|-
| {{KOR}} || rowspan="9" | ''Jang Bogo''&nbsp;class || SS-061 || {{ship|ROKS|Jang Bogo|SS-061|2}} || center|1993
|-
| {{KOR}} || SS-062 || {{ship|ROKS|Lee Chun|SS-062|2}} || center|1994
|-
| {{KOR}} || SS-063 || {{ship|ROKS|Choe Museon|SS-063|2}} || center|1995
|-
| {{KOR}} || SS-065 || {{ship|ROKS|Park Wi|SS-065|2}} || center|1996 
|-
| {{KOR}} || SS-066 || {{ship|ROKS|Lee Jongmoo|SS-066|2}} || center|1997
|-
| {{KOR}} || SS-067 || {{ship|ROKS|Jung Woon|SS-067|2}} || center|1998
|-
| {{KOR}} || SS-068 || {{ship|ROKS|Yi Sun-sin|SS-068|2}}  || center|2000
|-
| {{KOR}} || SS-069 || {{ship|ROKS|Na Dae-yong|SS-069|2}}  ||center|2000
|-
| {{KOR}} || SS-071 || {{ship|ROKS|Yi Eokgi|SS-071|2}}  ||center|2001
|-
| {{IDN}} || rowspan="3" | [[Nagapasa-class submarine|''Nagapasa''&nbsp;class]] ||403 || {{ship|KRI|Nagapasa|403|2}}||center|2017
|-
| {{IDN}} ||404 || {{ship|KRI|Ardadedali|404|2}}||center|2018
|-
| {{IDN}} || 405|| {{ship|KRI|Alugoro|405|2}} ||center|2019
|-
|}

== Pictures ==
<gallery mode="nolines" caption="Jang Bogo-class Gallery">
File:ROKS Nadaeyong SS-069.jpg|[[South Korea|Republic of Korea]] (ROK) ''Chang Bogo'' Type 209/1200 submarine ''Nadaeyong'' (SS 069) surfacing during a [[SINKEX]] for Rim of the Pacific [[RIMPAC]] 2002.
File:US Navy 100707-N-7200S-207 ROKS Lee Eokgi (SS 071) leads a formation of U.S. and coalition forces during Rim of the Pacific (RIMPAC) 2010 exercises.jpg|The Republic of Korea submarine ROKS ''Lee Eokgi'' (SS 071) leads a formation of U.S. and coalition forces during Rim of the Pacific (RIMPAC) 2010 exercises.
File:ROKS Lee Sunsin (SS 068) arrives at Naval Station Pearl Harbor.jpg|The Korean submarine ''Lee Sunsin'' (SSK 068) arrives at Naval Station [[Pearl Harbor]], becoming the first foreign vessel to arrive to take part in the Rim of the Pacific (RIMPAC) Exercise.
File:Korean submarine LEE CHUN.JPEG|Sailors on board the Korean submarine ''Lee Chun'' stand at the ready, as they prepare to go pier-side in [[Apra Harbor]], [[Guam]]. The Koreans are joining by other allied forces in Guam to participate in Exercise TANDEM THRUST '99.
File:Korean submarine Choi Moosun.JPEG|The Korean submarine ''Choi Museon'' makes its way past the [[United States Navy]]'s {{USS|Helena|SSN-725|6}} ({{sclass|Los Angeles|submarine|4}}) and into the [[Sembawang]] port facilities in Singapore during Exercise PACIFIC REACH 2000.
File:US Navy 100608-N-3560G-001 Lee Eokgi prepares for Rim of the Pacific (RIMPAC) 2010 pierside at Joint Base Pearl Harbor-Hickam, Hawaii.jpg|The Republic of Korea submarine ''Lee Eokgi'' (SS-071) prepares for Rim of the Pacific (RIMPAC) 2010 pierside at Joint Base Pearl Harbor-Hickam, Hawaii.
File:Submarine KRI Nagapasa, Indonesian Navy.jpg|Indonesian Navy submarine KRI ''Nagapasa'' (403) during the annual [[Indonesian National Armed Forces|armed force]] anniversary in [[Merak, Banten]], 2017. 
</gallery>

== See also ==
* [[Type 209 submarine]]
* [[Type 214 submarine]]

==References==
{{reflist|30em}}

{{Modern German submarines}}
{{Republic of Korea Navy ships}}

[[Category:Submarine classes]]
[[Category:Attack submarines]]
[[Category:Submarines of South Korea]]
[[Category:Jang Bogo-class submarines| ]]
[[Category:Type 209 submarines]]