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

ROKS Ahn Mu
History
South Korea
Name
  • Ahn Mu
  • (안무)
NamesakeAhn Mu
BuilderDaewoo Shipbuilding & Marine Engineering, Geoje
Laid down17 April 2018
Launched10 November 2020
Commissioned20 April 2023
IdentificationPennant number: SS-085
StatusActive
General characteristics
Class and typeDosan Ahn Changho-class submarine
Displacement
  • 3,358 tons surfaced
  • 3,750 tons submerged
Length83.5 m (273 ft 11 in)
Beam9.6 m (31 ft 6 in)
Draught7.62 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
Range10,000 nmi (19,000 km; 12,000 mi)
Endurance50 days
Complement50
Armament
  • 6 x 533 mm (21 in) torpedo tubes (Tiger Shark torpedoes and Harpoon missiles)
  • 6 x VLS tubes (cruise and ballistic missile)

Development and design

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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

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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

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  1. ^ Gady, Franz-Stefan (18 June 2019). "South Korea's First-of-Class KSS-III Attack Sub Begins Sea Trials". The Diplomat. Retrieved 24 November 2020.
  2. ^ "South Korea approves procurement of next batch of Aegis destroyers, subs". Naval Today. 6 May 2019. Retrieved 24 November 2020.
  3. ^ "DSME Jangbogo-III Batch-II Pilot Design Has Come to an End". Navy Recognition. 28 December 2018. Retrieved 24 November 2020.
  4. ^ "South Korea's first KSS-3 submarine begins sea trials". Jane's. Archived from the original on 18 June 2019. Retrieved 15 November 2020.
  5. ^ Jeong, Jeff (2 May 2019). "South Korea to build 3 more Aegis destroyers able to thwart ballistic missiles". Defense News. Retrieved 24 November 2020.
  6. ^ Makichuk, Dave (12 November 2020). "South Korean sub a tribute to famed general Ahn Mu". Asia Times. Retrieved 15 November 2020.
  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". www.korea.net. Retrieved 15 November 2020.
  8. ^ "South Korea's 2nd KSS III Submarine Commissioned with ROK Navy". navalnews.com. 20 April 2023.