Engineering:ROKS Ahn Mu

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Short description: Dosan Ahn Changho-class submarine
ROKS Dosan Ahn Changho class submarine.png
Dosan Ahn Changho-class submarine
History
South Korea
Name:
  • Ahn Mu
  • (안무)
Namesake: Ahn Mu
Builder: Daewoo Shipbuilding & Marine Engineering, Geoje
Laid down: 17 April 2018
Launched: 10 November 2020
Commissioned: 20 April 2023
Identification: Pennant number: SS-085
Status: Active
General characteristics
Class and type: Dosan Ahn Changho-class submarine
Displacement:
  • 3,358 tons surfaced
  • 3,750 tons submerged
Length: 83.5 m (273 ft 11 in)
Beam: 9.6 m (31 ft 6 in)
Draught: 7.62 m (25 ft 0 in)
Propulsion:
  • Diesel-electric, low noise skew back propeller
  • 4 x Bumhan Industry PH1 PEM fuel cell each with 150 kW
Speed:
  • 12 knots (22 km/h; 14 mph) surfaced
  • 20 knots (37 km/h; 23 mph) submerged
Range: 10,000 nmi (19,000 km; 12,000 mi)
Endurance: 50 days
Complement: 50
Armament:
  • 6 x 533 mm (21 in) torpedo tubes (Tiger Shark torpedoes and Harpoon missiles)
  • 6 x VLS tubes (cruise and ballistic missile)

ROKS Ahn Mu (SS-085) is the second ship of Dosan Ahn Changho-class submarines of the Republic of Korea Navy (ROKN).

Development and design

The Dosan Ahn Changho class incorporates the Korean Vertical Launching System which will be able to carry up to ten indigenous "Chonryong" land-attack cruise missiles and "Hyunmoo" submarine-launched ballistic missiles (SLBM),[1] becoming the first submarines in the ROKN 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.[2][3] Measured to displace over 3,800 tonnes (3,700 long tons) submerged during sea trials,[4] they are the largest conventional submarines ever built by South Korea . The Batch II vessels will increase their displacement by approximately 450 t (440 long tons) (4,250 t, 4,180 long tons submerged), according to the Defense Acquisition Program Administration.[5]

Construction and career

Ahn Mu was laid down on 17 April 2018 at DSME, Geoje and launched on 10 November 2020.[6][7] She was commissioned on 20 April 2023.[8]

References

  1. Gady, Franz-Stefan (18 June 2019). "South Korea's First-of-Class KSS-III Attack Sub Begins Sea Trials". The Diplomat. https://thediplomat.com/2019/06/south-koreas-first-of-class-kss-iii-attack-sub-begins-sea-trials/. 
  2. "South Korea approves procurement of next batch of Aegis destroyers, subs". Naval Today. 6 May 2019. https://navaltoday.com/2019/05/06/south-korea-approves-procurement-of-next-batch-of-aegis-destroyers-subs/. 
  3. "DSME Jangbogo-III Batch-II Pilot Design Has Come to an End". Navy Recognition. 28 December 2018. 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. 
  4. "South Korea's first KSS-3 submarine begins sea trials". Jane's. https://www.janes.com/article/89283/south-korea-s-first-kss-3-submarine-begins-sea-trials. 
  5. Jeong, Jeff (2 May 2019). "South Korea to build 3 more Aegis destroyers able to thwart ballistic missiles". Defense News. https://www.defensenews.com/naval/2019/05/02/south-korea-to-build-3-more-aegis-destroyers-able-to-thwart-ballistic-missiles/. 
  6. Makichuk, Dave (2020-11-12). "South Korean sub a tribute to famed general Ahn Mu" (in en-US). https://asiatimes.com/2020/11/south-korean-sub-a-tribute-to-famed-general-ahn-mu/. 
  7. Service (KOCIS), Korean Culture and Information. "Navy launches 2nd 3,000-ton submarine Ahn Mu : Korea.net : The official website of the Republic of Korea". http://www.korea.net/NewsFocus/Sci-Tech/view?articleId=191615. 
  8. "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/.