Engineering:KSS-III submarine

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Short description: South Korean submarine class
ROKS Dosan Ahn Changho class submarine.png
KSS-III Batch-I SS-083 Dosan Ahn Changho-class submarine.
Class overview
Builders:
Operators:  Republic of Korea Navy (ROKN)
Preceded by: Son Won-il class (Type 214 submarine)
Cost: United States dollar $900,000,000 per submarine[1]
Built: 2014–present[2]
In service: 2021-present[3]
Planned: 9[4]
Building: 2[5]
Completed: 2[6]
Active: 2[7]
General characteristics
Type: Attack submarine
Displacement:
  • Batch-I:-
  • 3,358 t (3,305 long tons) (Surfaced)[2]
  • 3,750 t (3,690 long tons) (Submerged)[2]
  • Batch-II:-
  • 3,600 t (3,500 long tons)[8]
Length:
  • Batch-I:-
  • 83.5 m (273 ft 11 in)[2]
  • Batch-II:-
  • 89.0 m (292 ft 0 in)[9]
Beam:
  • Batch-I:-
  • 9.6 m (31 ft 6 in)[2]
  • Batch-II:-
  • 9.6 m (31 ft 6 in)[10]
Draught:
  • Batch-I:
  • 7.62 m (25 ft 0 in)
Propulsion:
Speed:
  • 12 knots (22 km/h; 14 mph) (surfaced)[12]
  • 20 knots (37 km/h; 23 mph) (submerged)[12]
Range: 10,000 nmi (19,000 km; 12,000 mi)[13]
Endurance: 20 days (submerged)[14]
Complement: 50[2]
Sensors and
processing systems:
  • Combat suite:
  • Hanwha-developed "Combat Management System" (CMS)[2]
  • Sonar:
  • LIG Nex1-developed sonar suite[15]
  • Thales-developed mine-avoidance sonar[16]
  • Electronic warfare:
  • Indra-developed radar electronic support measurement (RESM)[4]
  • Other processing systems:
  • Safran-developed "Series 30" optronic surveillance mast[16]
  • Babcock-developed "Weapons Handling and Launch System" (WHLS)[17]
  • ECA Group-developed steering consoles
Armament:
Notes: First-ever AIP-equipped submarine capable of launching submarine-launched ballistic missiles (SLBM).[20]

The KSS-III (Korean Submarine-III) or Dosan Ahn Changho-class is a series of diesel-electric attack submarines currently being built for the Republic of Korea Navy (ROKN), jointly by Hanwha Ocean and HD Hyundai Heavy Industries (HHI).[2] The KSS-III is the final phase of the Korean Attack Submarine program, a three-phased program to build 27 attack submarines for the ROKN, between 1994–2029.[22]

The KSS-III initiative consists of the development of nine diesel-electric attack submarines, capable of firing submarine-launched ballistic missiles (SLBM), to be built in three batches, between 2014–2029.[2][23]

A total of three submarines of the first batch of the series have been launched, with the first submarine, ROKS Dosan Ahn Changho, being commissioned on 13 August 2019.[3] The second ship, ROKS Ahn Mu, was commissioned on 20 April 2023.

Design

Background

The design of the KSS-III was jointly designed by Daewoo Shipbuilding & Marine Engineering (now Hanwha Ocean) and Hyundai Heavy Industries (now HD Hyundai Heavy Industries) - two of South Korea 's largest shipbuilding enterprises; preparations for the design began in 2007.[24][25] The KSS-III is the largest submarine built in Korea and the first submarine designed with domestic technology, unlike the KSS-II submarine (Son Won-il-class submarine) previously produced in cooperation with Howaldtswerke-Deutsche Werft (HDW).[26][27]

Dosan Ahn Chang-ho class, the first 3,000-ton submarine designed through the KSS-III program, achieved a 76 percent localization rate, twice as high as the previously license-built KSS-II submarine. The development process adopted a design process using digital mock-up simulation for the first time in Korea, and the hull was made of HY-100 alloy steel to withstand high pressure of deep water. Although the size of the submarine is larger than that of the existing KSS-II submarine, the noise is minimized by applying non-acoustic stealth technologies such as acoustic anechoic coating and elastic mounts. The submarine's interior is made up of large and small pipes measuring 85 km in total length and has 127 types of acoustic and electronic equipment embedded in.[26][27]

The first ROKS Dosan Ahn Changho designed in the KSS-III program was designed as a system development process using experimental technologies to demonstrate South Korea's independent submarine building capabilities, but the ROKS Ahn Mu is the first submarine to be built and commissioned through an official mass production process. SS-085 Ahn Mu successfully passed 125 items of builder test, 208 items of harbor acceptance test, and 90 items of sea acceptance test during the trial run process from January 2020 to April 2023. It also includes key features such as VHF marine communication system, passive linear array sonar, torpedo acoustic counter measure, underwater radiated noise level, electric propulsion motor, which are improved from the previous SS-083 Dosan Ahn Changho.[28]

Batch-I

File:The first test launch of the Hyunmoo 4-4 SLBM of the Dosan Ahn Changho-class submarine in September 2021.webm

The Batch-I series is the first phase of the KSS-III program - consisting of the construction of three attack submarines - with the first two to be built by Daewoo Shipbuilding & Marine Engineering (DSME) and the third one to be built by HHI.[29]

The Batch-I design possesses a length of 83.5 metres (273 ft 11 in), with a breadth of 9.6 m (31 ft 6 in) and a draught of 7.62 m (25 ft 0 in) - with a displacement of 3,358 tonnes (3,305 long tons) while surfaced and 3,750 tonnes (3,690 long tons) while submerged; they are the first submarines with a displacement of 3,000 tonnes to ever be built by South Korea.[30][17][31][32] According to DSME, over 76% of the submarine's components were procured from within South Korea.[32]

The Batch-I design has an estimated speed of about 12 knots (22 km/h; 14 mph) while surfaced, and 20 knots (37 km/h; 23 mph) while submerged - and possesses a cruising range of around 10,000 nautical miles (19,000 km; 12,000 mi), at economic speed, along with a crew complement of 50.[33] The design further incorporates an indigenously-designed fuel-cell powered air-independent propulsion (AIP) module - which enables the submarine to conduct long-distance underwater operations for up to 20 days.[34][35] The PH1 fuel cell module developed by Bumhan Industries is also the second hydrogen fuel cell used in submarines in the world after Siemens' fuel cell.[11][36][37]

The design accommodates six Korean Vertical Launching System (K-VLS) cells, located behind the submarine's sail - for carrying six Hyunmoo 4-4 submarine-launched ballistic missiles (SLBM), along with six 533-millimetre (21 in) forward-firing torpedo tubes, located at the bow.[38] Coincidentally, the KSS-III is the first ever AIP-equipped attack-submarine, capable of launching submarine-launched ballistic missiles.[20]

Batch-II

The Batch-II series constitutes the second phase of the KSS-III program - and is noted to possess multiple improvements in terms of design, armament and automation, over the Batch-I series.[39]

The Batch-II design possesses a length of 89 m (292 ft), with a breadth of 9.6 m (31 ft), along with an estimated displacement of around 3,600 t (3,500 long tons).[40][41] According to DSME, the Batch-II series will be equipped with "a greater level of South Korean technology" - with over 80% of the submarine's parts to be domestically sourced.[42][43]

Similar to the Batch-I, the Batch-II will also reportedly have a top speed of 20 knots (37 km/h; 23 mph) and a crew complement of 50.[40]

A notable feature of the Batch-II submarines is its lithium-ion battery technology (LiB); the Batch-II series will be equipped with lithium-ion batteries - developed by Samsung SDI (and supplied by Hanwha Defense), apart from the AIP system.[44] Compared to previous lead-acid batteries which are generally used to power other conventionally-powered submarines, the new lithium-ion batteries will reportedly allow the KSS-III to cruise at greater speeds with a greater period of underwater endurance, life-expectancy and durability.[45] Incidentally, Korea is only the second country in the world to field submarines equipped with lithium-ion batteries; the first is Japan - which utilizes lithium-ion battery technology aboard its Sōryū-class submarines.[46]

The design also incorporates ten K-VLS cells (compared to six on the Batch-I) - which are presumably to carry the Hyunmoo 4-4 ballistic missiles and the future Chonryong land-attack cruise missile.[47]

Instrumentation

Armament

  • Torpedoes – The KSS-III is equipped with six 533 mm (21 in) forward-firing torpedo tubes, for firing the "Tiger Shark" heavyweight torpedoes, developed by LIG Nex1.[48][49]
  • Missiles – The Batch-I submarines are equipped with six K-VLS cells, capable of launching the Hyunmoo 4-4 ballistic missiles which is estimated to possess a range of around 500 km (310 mi).[44][50] In contrast, the Batch-II submarines will be equipped to ten K-VLS cell, presumably for carrying the Hyunmoo 4-4, as well as the future Chonryong land-attack cruise missile, currently in development.[47][51]
  • Weapon Handling System – The Batch-I vessels are also equipped with a "Weapons Handling and Launch System" (WHLS) developed by United Kingdom -based naval conglomerate Babcock International.[17]

Sensors

The Batch-I series is currently equipped with an assortment of different sensors and equipment, including:

  • Combat Management Suite – A "Naval Shield Integrated Combat Management System" (ICMS), developed by Hanhwa.[52]
  • Sonar – A sonar suite, developed by LIG Nex1, comprising:[53]
    • Flank-array sonar (FAS)
    • Towed-array sonar
    • Intercept-passive sonar
    • Continuous-active sonar (CAS)
    • Mine-avoidance sonar, developed by Thales[16]
  • Electronic warfare – "Pegaso" radar electronic support-measures (RESM), developed by Indra.[54]
  • Other systems
    • "Series 30 Attack and Search" optronic mast, developed by Safran.[16]
    • Noise-analysis/noise-reduction technology, developed by LIG Nex1.[53]
    • Steering-consoles, developed by ECA Group.[55]

Construction

Batch-I

On 26 December 2012 - South Korea's Ministry of National Defense (MND) contracted DSME to build the first two Batch-I submarines - at an estimated cost of United States dollar $1.56 billion.[17] On 30 November 2016 - the MND contracted HHI to build the third submarine of the series.[29]

The construction of the first submarine began in November 2014, with a "steel-cutting" ceremony at DSME's shipyard in Okpo, South Korea [56] The submarine, christened as the Dosan Ahn Changho, was launched in an elaborate ceremony on 14 September 2018 - an event that was attended by senior representatives from South Korea's government and military, including South Korean president Moon Jae-in.[56] Dosan Ahn Changho began its sea trials in June 2019 and was commissioned into the ROKN on 13 August 2021.[56]

Work on the second submarine began - with the laying of its keel in July 2016.[29] Christened as the Ahn Mu, the submarine was launched on 10 November 2020.[57] It is scheduled to be delivered by 2022.[57]

The construction of the third and final submarine began in June 2017, at HHI's shipbuilding facility in Ulsan, South Korea.[29] Christened as the Shin Chae-ho, the submarine was launched on 28 September 2021.[58] It is scheduled to be delivered by 2024.[58]

Batch-II

On 11 October 2019, South Korea's Defense Acquisition Program Administration (DAPA) contracted DSME to design and build the first Batch-II submarine - at an estimated cost KRW ₩1.11 trillion.[59] On 10 September 2019, DSME was again contracted to build the second Batch-II submarine - at an estimated cost of ₩985.7 billion.[60]

The construction of the first submarine - the Lee Bong-chang, began in August 2021 and is scheduled to be delivered to the ROKN in 2026.[61] The construction of the second submarine began in December 2021 and is scheduled to be delivered to the ROKN by 2028.[62]

Export variants

DSME-2000

At the 2019 convention of the "International Maritime Defense Industry Exhibition" (MADEX), held at Busan, South Korea, DSME unveiled the DSME-2000 - a 2,000 t (2,000 long tons), diesel-electric variant of the KSS-III, as an export-oriented design for foreign navies.[63]

The DSME-2000 possesses a length of 70.3 m (230 ft 8 in) and a diameter of 6.3 m (20 ft 8 in), with a crew complement of 40, with additional space for about 10 special forces commandos.[15] The design has an estimated speed of 10 knots (19 km/h; 12 mph) while surfaced, and 20 knots (37 km/h; 23 mph) while submerged and possesses a cruising range of around 10,000 nmi (19,000 km; 12,000 mi), at cruising speed.[15]

The DSME-2000 displaces at 2,000 tonnes and is larger than South Korea's Jang Bogo-class submarine (based on the Type 209/1400 design) and the Son Won-il class (based on the Type 214 design), but is smaller than the Dosan Ahn Changho class.[63]

The design incorporates an arrangement of eight 533 mm (21.0 in) forward-firing torpedo tubes, with a pack of 16 torpedoes - although this can be combined with an assortment of naval mines and anti-ship missiles.[63] The submarine's design also features a flexible weapon launching system - which can be tailored according to the customer's requirements.[15]

Similar to the KSS-III, the DSME-2000 will also be equipped with an AIP module and lithium-ion batteries.[15] The design also includes an assortment of equipment, including -

DSME-3000

DSME has offered a 3,000-tonne variant of the KSS-III, known as the DSME-3000 to the Indian Navy, under the latter's Project-75 (India) (P-75I) submarine procurement initiative.[64] The DSME-3000 is noted to be quite similar to the KSS-III, featuring a displacement of about 3,300 t, with a length measuring 83.5 m (273 ft 11 in) and a beam measuring 9.7 m (31 ft 10 in).[65] The DSME-3000 was first displayed to the public at the 2021 convention of the "International Maritime Defense Industry Exhibition" (MADEX), held at Busan, South Korea.[64]

The DSME-3000 will be equipped with lithium-ion batteries and a fuel-cell powered AIP system, as on the KSS-III; however, the variant being offered to India lacks the K-VLS cells, which are standard on both Batch-I and Batch-II submarines being built for the Republic of Korea Navy.[64]

DSME entered the competition in April 2019 and was later shortlisted as a finalist, along with four other international shipyards - ThyssenKrupp Marine Systems (TKMS), Rubin Design Bureau, Navantia and Naval Group.[66][67] As of September 2021, the firm is reported to be the only remaining contender; the other four contenders either withdrew or were disqualified from the program, on account of varying reasons.[68]

Ships in the class

Name Pennant Number Builder Laid Down Launched Commissioned Status
Batch-I
ROKS Dosan Ahn Changho SS-083[3] Daewoo Shipbuilding & Marine Engineering (DSME) 17 May 2016[29] 14 September 2018[3] 13 August 2021[3] Active[3]
ROKS Ahn Mu SS-085[69] 17 April 2018[69] 10 November 2020[69] 20 April 2023[69] Active[69]
ROKS Shin Chae-ho SS-086[70] HD Hyundai Heavy Industries (HHI) 11 April 2019[70] 28 September 2021[70] Scheduled for 2024[70] Launched[70]
Batch-II
ROKS Lee Bong-chang[71] SS-087[72] Hanwha Ocean 30 March 2023[73] Scheduled for 2026[72] Under construction[72]

See also

Submarines of similar era and comparison

  • Blekinge-class submarine - A class of next-generation attack submarines developed by Kockums for the Swedish Navy.
  • Dakar-class submarine - A unique class of diesel-electric attack-submarines developed by ThyssenKrupp Marine Systems and currently being built for Israel.
  • Hai Kun-class submarine - A class of diesel-electric attack-submarines currently being built by CSBC for Taiwan.
  • Lada-class submarine - A class of diesel-electric attack-submarines developed by Rubin Design Bureau for Russia.
  • Scorpène-class submarine - A class of export-oriented diesel-electric attack-submarines, jointly developed by Naval Group and Navantia and currently operated by the Chilean Navy, the Royal Malaysian Navy, the Indian Navy and the Brazilian Navy.
  • Sōryū-class submarine - A class of diesel-electric attack-submarines developed by Mitsubishi Heavy Industries and Kawasaki Shipbuilding Corporation for the Japan Maritime Self-Defense Force.
  • S-80 Plus submarine - A class of conventionally-powered attack-submarines developed by Navantia for the Spanish Navy.
  • Taigei-class submarine - A class of diesel-electric attack submarines currently being built by Mitsubishi Heavy Industries and Kawasaki Heavy Industries for the Japan Maritime Self-Defense Force.
  • Type 212CD submarine - An exclusive class of attack submarines developed by ThyssenKrupp Marine Systems for the German Navy and the Royal Norwegian Navy.
  • Type 218SG submarine - An exclusive class of attack submarines developed by ThyssenKrupp Marine Systems for the Republic of Singapore Navy.

Other references to the Republic of Korea Navy

  • List of active Republic of Korea Navy ships

References

  1. ↑ James O. Campbell, Jr. (13 September 2020). "Seoul's Misguided Desire for a Nuclear submarine". https://npolicy.org/wp-content/uploads/2021/05/Campbell_Seoul_Misguided_Desire_for_a_Nuclear_Submarine.pdf. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 "KSS-III (Jangbogo-III) Class Attack Submarines, South Korea". 21 January 2022. https://www.naval-technology.com/projects/kss-iii-jangbogo-iii-class/. 
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "ROK Navy Commissions Her First KSS III Submarine". 13 August 2021. https://www.navalnews.com/naval-news/2021/08/rok-navy-commissions-her-first-kss-iii-submarine/. 
  4. ↑ 4.0 4.1 "South Korean navy commissions first KSS-III-class, SLBM-capable submarine". https://www.janes.com/defence-news/news-detail/south-korean-navy-commissions-first-kss-iii-class-slbm-capable-submarine. 
  5. ↑ "South Korea launches Dosan Ahn Changho class submarine Shin Chae-ho". 5 October 2021. https://www.navyrecognition.com/index.php/naval-news/naval-news-archive/2021/october/10792-south-korea-launches-dosan-ahn-changho-submarine-shin-chae-ho.html. 
  6. ↑ "South Korea's 2nd KSS III Submarine Commissioned with ROK Navy". 20 April 2023. https://www.navalnews.com/naval-news/2023/04/south-koreas-2nd-kss-iii-submarine-commissioned-with-rok-navy/. 
  7. ↑ "South Korea's 2nd KSS III Submarine Commissioned with ROK Navy". 20 April 2023. https://www.navalnews.com/naval-news/2023/04/south-koreas-2nd-kss-iii-submarine-commissioned-with-rok-navy/. 
  8. ↑ "DSME kicks off construction of new KSS-III submarine for ROK Navy". 31 December 2021. https://www.navaltoday.com/2021/12/31/dsme-kicks-off-construction-of-new-kss-iii-submarine-for-rok-navy/. 
  9. ↑ "South Korea Begins Construction on 2nd KSS-III Batch-II Submarine". 2 January 2022. https://www.navalnews.com/naval-news/2022/01/south-korea-begins-construction-on-2nd-kss-iii-batch-ii-submarine/#:~:text=The%20Batch%2DII%20is%2089,maximum%20speed%20of%2020%20kts.. 
  10. ↑ "South Korea Begins Construction on 2nd KSS-III Batch-II Submarine". 2 January 2022. https://www.navalnews.com/naval-news/2022/01/south-korea-begins-construction-on-2nd-kss-iii-batch-ii-submarine/. 
  11. ↑ 11.0 11.1 Lee Jong-soo (2 October 2018). "연료전지시장 '빅뱅' 예고한 '범한산업'". Monthly hydrogen economy. Archived from the original on 21 September 2023. https://web.archive.org/web/20230921011450/https://www.h2news.kr/mobile/article.html?no=7022. Retrieved 21 September 2023. 
  12. ↑ 12.0 12.1 "MADEX 2021: Hanwha Defense presents its new technology of lithium-ion battery for submarines". 9 June 2021. https://www.navyrecognition.com/index.php/naval-news/naval-news-archive/2021/june/10279-madex-2021-hanwha-defense-presents-its-new-technology-of-lithium-ion-battery-for-submarines.html. 
  13. ↑ "HHI launches third KSS-III-class submarine for South Korean navy". https://www.janes.com/defence-news/news-detail/hhi-launches-third-kss-iii-class-submarine-for-south-korean-navy#:~:text=Fitted%20with%20noise%2Dreduction%20technology,according%20to%20Janes%20Fighting%20Ships%20.. 
  14. ↑ "South Korea's KSS-III Batch 2 Submarine to Feature both AIP and Li-Ion Batteries". 18 June 2021. https://www.navalnews.com/event-news/madex-2021/2021/06/south-koreas-kss-iii-batch-2-submarine-to-feature-both-aip-and-li-ion-batteries/. 
  15. ↑ 15.0 15.1 15.2 15.3 15.4 15.5 15.6 "MADEX 2019: New 2,000 Tons Attack Submarine Joins DSME Portfolio". 23 October 2019. https://www.navalnews.com/event-news/madex-2019/2019/10/madex-2019-new-2000-tons-attack-submarine-joins-dsme-portfolio/. 
  16. ↑ 16.0 16.1 16.2 16.3 "Sagem and Thales to provide Optronic and Sonar Systems for future ROK Navy KSS-III Submarine". 9 October 2014. https://www.navyrecognition.com/index.php/naval-news/naval-news-archive/year-2014-news/october-2014-navy-naval-forces-maritime-industry-technology-security-global-news/2048-sagem-and-thales-to-provide-optronic-and-sonar-systems-for-future-rok-navy-kss-iii-submarine.html. 
  17. ↑ 17.0 17.1 17.2 17.3 "KSS-III (Jangbogo-III) Class Attack Submarines, South Korea". https://www.naval-technology.com/projects/kss-iii-jangbogo-iii-class/. 
  18. ↑ "LIG Nex1 on Track with New Tiger Shark Heavyweight Torpedo". August 2018. http://navyrecognition.com/index.php/news/defence-news/2018/august-2018-navy-naval-defense-news/6471-lig-nex1-on-track-with-new-tiger-shark-heavyweight-torpedo.html. 
  19. ↑ Smith, Josh (7 September 2021). "S.Korea tests first submarine-launched ballistic missile - Yonhap". Reuters. https://www.reuters.com/world/asia-pacific/skorea-tests-first-submarine-launched-ballistic-missile-yonhap-2021-09-07/. 
  20. ↑ 20.0 20.1 20.2 "Game Changer: AIP Submarine Has Fired a Ballistic Missile for the First Time". 7 September 2021. https://www.navalnews.com/naval-news/2021/09/new-dawn-first-time-a-modern-non-nuclear-submarine-has-fired-a-ballistic-missile/. 
  21. ↑ "DSME contracted to build South Korean navy's second KSS-III 'Batch-II' submarine". https://www.janes.com/defence-news/news-detail/dsme-contracted-to-build-south-korean-navys-second-kss-iii-batch-ii-submarine. 
  22. ↑ Gady, Franz-Stefan (18 June 2019). "South Korea's First-of-Class KSS-III Attack Sub Begins Sea Trials". https://thediplomat.com/2019/06/south-koreas-first-of-class-kss-iii-attack-sub-begins-sea-trials/. 
  23. ↑ "KSS-III (Jangbogo–III-class) diesel-electric attack submarine". https://thediplomat.com/tag/kss-iii-jangbogo-iii-class-diesel-electric-attack-submarine/. 
  24. ↑ "KSS-III Class". https://www.globalsecurity.org/military/world/rok/kss-3.htm. 
  25. ↑ Karniol, R. (December 2006). "Team prepares for 2007 start on KSS-III design". https://www.researchgate.net/publication/294539547. 
  26. ↑ 26.0 26.1 "국내 독자 설계ㆍ건조한 3,000톤급 도산안창호함 취역". Defense Acquisition Program Administration. 16 August 2021. Archived from the original on 12 June 2023. https://web.archive.org/web/20230612095201/https://www.dapa.go.kr/dapa/na/ntt/selectNttInfo.do?bbsId=326&nttSn=38931&menuId=678. Retrieved 12 June 2023. 
  27. ↑ 27.0 27.1 "국내 기술로 만든 첫 번째 중형잠수함 도산안창호함". Defense Acquisition Program Administration. September 2021. Archived from the original on 12 June 2023. https://web.archive.org/web/20230612085303/https://dapa-magazine.kr/page/vol112/view.php?volNum=vol112&seq=2. Retrieved 12 June 2023. 
  28. ↑ "장보고-III Batch-I 최초양산 안무함, 출동 준비 끝!". Defense Agency for Technology and Quality. 22 August 2023. Archived from the original on 8 September 2023. https://web.archive.org/web/20230908180632/https://www.dtaq-media.kr/content/%EA%B8%B0%EC%88%A0%EB%A1%9C-%ED%92%88%EC%A7%88%EB%A1%9C?id=163. Retrieved 8 September 2023. 
  29. ↑ 29.0 29.1 29.2 29.3 29.4 "South Korea's DSME Launches 2nd KSS III Submarine for ROK Navy". 10 November 2020. https://www.navalnews.com/naval-news/2020/11/south-koreas-dsme-launches-2nd-kss-iii-submarine-for-rok-navy/. 
  30. ↑ Article title [bare URL PDF]
  31. ↑ "DSME Launched ROK Navy's 1st 3000 tons KSS-III Submarine Dosan Ahn Chang-ho". https://www.navyrecognition.com/index.php?id=6491. 
  32. ↑ 32.0 32.1 "South Korea Navy Receives First Indigenous 3,000-Ton Submarine". 16 August 2021. https://www.thedefensepost.com/2021/08/16/south-korea-indigenous-submarine/. 
  33. ↑ "ROK Navy Commissions Her First KSS III Submarine". 13 August 2021. https://www.navalnews.com/naval-news/2021/08/rok-navy-commissions-her-first-kss-iii-submarine/. 
  34. ↑ Gabriel Dominguez, Dae Young Kim and Matteo Scarano (13 August 2021). "South Korean navy commissions first KSS-III-class, SLBM-capable submarine". Janes Information Services. Archived from the original on 22 April 2023. https://web.archive.org/web/20230422063251/https://www.janes.com/defence-news/news-detail/south-korean-navy-commissions-first-kss-iii-class-slbm-capable-submarine. Retrieved 22 April 2023. 
  35. ↑ Jung Young-min (10 October 2022). "잠수함에 연료전지‥세계 최장 잠항 가능". Munhwa Broadcasting Corporation. Archived from the original on 6 October 2023. https://web.archive.org/web/20231006173424/https://imnews.imbc.com/replay/2022/nwdesk/article/6415634_35744.html. Retrieved 6 October 2023. 
  36. ↑ Lee Sang-wook (23 August 2020). "독일 제치고 차기 잠수함에 국산 연료전지 탑재". Sisa Journal. Archived from the original on 21 September 2023. https://web.archive.org/web/20230921011255/https://www.sisajournal.com/news/articleView.html?idxno=203975. Retrieved 21 September 2023. 
  37. ↑ "Who we are?". Bumhan Industries. Archived from the original on 20 September 2023. https://web.archive.org/web/20230920184109/https://bumhan.com/en/who-we-are/. Retrieved 20 September 2023. 
  38. ↑ "South Korea commissions first SLBM-capable KSS-III-class submarine". 19 August 2021. https://www.asianmilitaryreview.com/2021/08/south-korea-commissions-first-slbm-capable-kss-iii-class-submarine/. 
  39. ↑ "South Korea's DAPA Selects DSME for KSS-III Batch II Heavy Submarine Design & Construction". 25 May 2016. http://www.navyrecognition.com/index.php?option=com_content&view=article&id=4025. 
  40. ↑ 40.0 40.1 "DSME contracted to build South Korean navy's second KSS-III 'Batch II' submarine". https://www.janes.com/defence-news/news-detail/dsme-contracted-to-build-south-korean-navys-second-kss-iii-batch-ii-submarine. 
  41. ↑ "DMSE to build South Korea KSS III Batch II class submarine". 10 September 2021. http://navyrecognition.com/index.php/naval-news/naval-news-archive/2021/september/10692-dmse-to-build-south-korea-kss-iii-batch-ii-class-submarine.html. 
  42. ↑ "MADEX 2019: DSME on Track with KSS III Batch 2 Submarine Program for ROK Navy". 23 October 2019. https://www.navalnews.com/event-news/madex-2019/2019/10/madex-2019-dsme-on-track-with-kss-iii-batch-2-submarine-program-for-rok-navy/. 
  43. ↑ "South Korea Begins Construction on 2nd KSS-III Batch-II Submarine". 2 January 2022. https://www.navalnews.com/naval-news/2022/01/south-korea-begins-construction-on-2nd-kss-iii-batch-ii-submarine/#:~:text=The%20Batch%2DII%20is%2089,%2C%20after%20Japan's%20Soryu%2Dclass.. 
  44. ↑ 44.0 44.1 "South Korea's KSS-III Batch 2 Submarine to Feature both AIP and Li-Ion Batteries". 18 June 2021. https://www.navalnews.com/event-news/madex-2021/2021/06/south-koreas-kss-iii-batch-2-submarine-to-feature-both-aip-and-li-ion-batteries/. 
  45. ↑ "MADEX 2021: Hanwha Defense presents its new technology of lithium-ion battery for submarines". 9 June 2021. https://www.navyrecognition.com/index.php/naval-news/naval-news-archive/2021/june/10279-madex-2021-hanwha-defense-presents-its-new-technology-of-lithium-ion-battery-for-submarines.html. 
  46. ↑ "New battery can double the operational time of submarines, says South Korea". 16 November 2018. https://www.defensenews.com/industry/techwatch/2018/11/16/new-battery-can-double-the-operational-time-of-submarines-says-south-korea/. 
  47. ↑ 47.0 47.1 "South Korea starts construction of KSS III Batch II class submarine". 30 December 2021. https://www.navyrecognition.com/index.php/naval-news/naval-news-archive/2021/december/11186-south-korea-starts-construction-of-kss-iii-batch-ii-class-submarine.html. 
  48. ↑ "LIG Nex1 Tiger Shark Heavy Weight Torpedo". 19 November 2018. https://militaryleak.com/2018/11/19/lig-nex1-tiger-shark-heavy-weight-torpedo/. 
  49. ↑ "MADEX 2019: South Korea aims to deploy Tiger Shark torpedo by 2020". 24 October 2019. https://www.janes.com/defence-news/news-detail/madex-2019-south-korea-aims-to-deploy-tiger-shark-torpedo-by-2020. 
  50. ↑ "South Korea Successfully Completed K-SLBM Test Launch from KSS III Submarine". 21 September 2021. https://www.navalnews.com/naval-news/2021/09/south-korea-successfully-completed-k-slbm-test-launch-from-kss-iii-submarine/. 
  51. ↑ "South Korea launches second new sub". 11 November 2020. https://adbr.com.au/south-korea-launches-second-new-sub/. 
  52. ↑ "Naval Combat System". https://www.hanwhasystems.com/en/business/defense/naval/combat_index.do#. 
  53. ↑ 53.0 53.1 "LIG Nex1 - Products". https://www.lignex1.com/web/eng/product/product.do?category=02&part=03&model=04#categoryMenu. 
  54. ↑ "Indra, set to equip South Korea's new KSS III submarine with maximum detection and intelligence capabilities". 25 November 2021. https://www.indracompany.com/en/noticia/indra-set-equip-south-koreas-new-kss-iii-submarine-maximum-detection-intelligence. 
  55. ↑ "Naval Today: ECA Group to deliver steering console for third South Korean KSS-III submarine". 11 December 2017. https://www.ecagroup.com/en/business/naval-today-eca-group-deliver-steering-console-third-south-korean-kss-iii-submarine. 
  56. ↑ 56.0 56.1 56.2 "DSME Launched ROK Navy's 1st 3000 tons KSS-III Submarine Dosan Ahn Chang-ho". 17 September 2018. https://www.navyrecognition.com/index.php/naval-news/naval-news-archive/2018/september-2018-navy-naval-defense-news/6491-dsme-launched-rok-navy-s-1st-3000-tons-kss-iii-submarine-dosan-ahn-chang-ho.html. 
  57. ↑ 57.0 57.1 "South Korea Launches Navy's 2nd KSS III Submarine". 10 November 2020. https://www.defenseworld.net/news/28285/South_Korea_Launches_Navy___s_2nd_KSS_III_Submarine#.YeOq0_5BzIU. 
  58. ↑ 58.0 58.1 "South Korean Navy Launches Shin Chae-ho, its Third Changbogo-III Submarine". 2 October 2021. https://nationalinterest.org/blog/korea-watch/south-korean-navy-launches-shin-chae-ho-its-third-changbogo-iii-submarine-194827. 
  59. ↑ "DSME awarded contract to design, build upgraded KSS-III-class submarine". 11 October 2019. https://www.janes.com/defence-news/news-detail/dsme-awarded-contract-to-design-build-upgraded-kss-iii-class-submarine. 
  60. ↑ "South Korea's DSME Wins Contract for 2nd KSS-III Batch-II Submarine". 10 September 2021. https://www.navalnews.com/naval-news/2021/09/south-koreas-dsme-wins-contract-for-2nd-kss-iii-batch-ii-submarine/. 
  61. ↑ "South Korea begins construction of second KSS-III Batch-II submarine". 3 January 2022. https://continental-defence.com/south-korea-begins-construction-of-second-kss-iii-batch-ii-submarine. 
  62. ↑ "South Korea Begins Construction on 2nd KSS-III Batch-II Submarine". 2 January 2022. https://www.navalnews.com/naval-news/2022/01/south-korea-begins-construction-on-2nd-kss-iii-batch-ii-submarine/. 
  63. ↑ 63.0 63.1 63.2 "South Korea unveils new diesel-electric submarine design for export market". 28 October 2019. https://www.asiapacificdefensejournal.com/2019/10/south-korea-unveils-new-diesel-electric.html. 
  64. ↑ 64.0 64.1 64.2 "MADEX 2021: DSME Sheds Light on Submarine Offer to India for P-75I". 16 June 2021. https://www.navalnews.com/event-news/madex-2021/2021/06/madex-2021-dsme-sheds-light-on-submarine-offer-to-india-for-p-75i/. 
  65. ↑ "Korean shipbuilder touts advanced batteries for submarines on offer to India". 16 June 2021. https://www.theweek.in/news/sci-tech/2021/06/16/korean-shipbuilder-touts-advanced-batteries-for-submarines-on-offer-to-india.html. 
  66. ↑ "India makes initial bid selections for $7 billion submarine project". 22 January 2020. https://www.defensenews.com/industry/2020/01/22/india-makes-initial-bid-selections-for-7-billion-submarine-project/. 
  67. ↑ "SAAB out, South Korean Company in for the conventional submarines for the Indian Navy". 27 September 2019. https://www.financialexpress.com/defence/saab-out-south-korean-company-in-for-the-conventional-submarines-for-the-indian-navy/1719545/. 
  68. ↑ "Germany may not bid for Navy's P75I submarine project, leaves South Korean firm as only vendor". 20 August 2021. https://economictimes.indiatimes.com/news/defence/germany-may-not-bid-for-navys-p75i-submarine-project-leaves-south-korean-firm-as-only-vendor/articleshow/85447687.cms. 
  69. ↑ 69.0 69.1 69.2 69.3 69.4 "South Korea's 2nd KSS III Submarine Commissioned with ROK Navy". 20 April 2023. https://www.navalnews.com/naval-news/2023/04/south-koreas-2nd-kss-iii-submarine-commissioned-with-rok-navy/. 
  70. ↑ 70.0 70.1 70.2 70.3 70.4 "South Korea's HHI Launches 3rd KSS III Submarine for the ROK Navy". 28 September 2021. https://www.navalnews.com/naval-news/2021/09/south-koreas-hhi-launches-3rd-kss-iii-submarine-for-the-rok-navy/. 
  71. ↑ "South Korea Plans Even Bigger Missile Submarines, But They're Not Going Nuclear — Yet". 27 October 2021. https://nationalinterest.org/blog/korea-watch/south-korea-plans-even-bigger-missile-submarines-they%E2%80%99re-not-going-nuclear%E2%80%94yet. 
  72. ↑ 72.0 72.1 72.2 "DSME kicks off construction of new KSS-III submarine for ROK Navy". 31 December 2021. https://www.navaltoday.com/2021/12/31/dsme-kicks-off-construction-of-new-kss-iii-submarine-for-rok-navy/. 
  73. ↑ "South Korea's DSME Lays Keel Of First KSS-III Batch II Submarine" (in en). Naval News. 2023-03-30. https://www.navalnews.com/naval-news/2023/03/south-koreas-dsme-lays-keel-of-first-kss-iii-batch-ii-submarine/. Retrieved 2023-03-30. 



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