Sang-O-class submarine

Sang-O class
Submarine involved in the 1996 incident
Class overview
BuildersBong Dao Bo Shipyards, Singpo[3]
Operators Korean People's Navy
Preceded byYugo class
Succeeded bySinpo class
SubclassesAttack version, infiltration/reconnaissance version
In commission1991
Completed41+
Active40 (February 2021)[1][2]
Lost1 captured by South Korea
Preserved1
General characteristics (Sang-O I armed version)
TypeCoastal submarine
Displacement
  • 275 tons (surfaced)
  • 370 tons (submerged)
Length34 m (111 ft 7 in)
Beam3.8 m (12 ft 6 in)
PropulsionDiesel-electric: 1 small diesel, 1 electric motor, 1 shaft
Speed
  • 7.5 knots (13.9 km/h; 8.6 mph) surfaced
  • 9 knots (17 km/h; 10 mph) submerged
Range1,500 nmi (2,800 km; 1,700 mi)
Test depth150 m (490 ft), capable of bottoming
Capacity0 (10/11 in recce version)
Complement15
Sensors and
processing systems
Armament
NotesFitted with a snorkel

The Sang-O ("Shark") class of submarines (Hangul: 상어급 잠수함) are diesel-electric coastal submarines in service with the Korean People's Navy, the navy of North Korea.[4] They are the country's second largest indigenously-built submarines.

Though North Korean military capabilities are mostly kept classified, it was reported that North Korea maintains 40 Sang-O-class submarines as of February 2021.[2]

History[edit]

The Sang-O class was introduced in 1991, produced at Bong Dao Bo Shipyards in Sinpo.[4]

A single unit was captured by the Republic of Korea Navy (South Korea) after it ran aground on 18 September 1996 in the Gangneung submarine infiltration incident.[3]

The seized Sang-O-class submarine was placed on display at Unification Park near Gangneung, which was opened on 26 September 2001.[4]

Design[edit]

A Sang-O-class submarine captured by South Korea on display at Tongil (Unification) Park near Gangneung in 2012

The Sang-O class was reported to be larger than a midget submarine, but smaller than the Romeo and Whiskey-class submarines.[5] They are usually equipped with four 533 mm (21 in) torpedo tubes and 16 mines, but some are unarmed and are used to carry North Korean commandos.[6]

New class[edit]

It was reported in March 2011 that a new version of the Sang-O class had been deployed in North Korea.[7] Satellite imagery from 2005 suggests the Sang-O II / K-300 may have been produced at the Mayang-do naval base and fitted out at the dry docks located at 39.9978 N, and 128.20019 E.[8]

Other footage of the nearby docks of Sinp'o appear to depict the Sang-O II / K-300 as early as 2004 (at 40 01'31.20"N 128 09'55.80"E). Subsequent satellite imagery shows the Sang-O II / K-300 deployed to the Ch’aho-rodongjagu submarine Navy Base at 40.205441 N 128.649524 E on North Korea's east coast.[8]

According to the KPA Journal,[1] the decision to develop a larger, improved version of the Sang-O came in the late 1990s or early 2000. The Sang-O II / K-300 is a stretched version of the original Sang-O class with an approximate length of 39 to 40 metres and a corresponding surface displacement of approximately 300 to 340 tons.

The increased length and internal volume would suggest an increase in the operational range of the submarine and troop/equipment carrying capabilities. Top speed is also reported to be higher in the new model, meaning an improved propulsion system is possibly housed in some of the extra length.

References[edit]

  1. ^ a b "N.Korea Builds up Submarine Force" (PDF). The Chosun Ilbo. 21 March 2011.
  2. ^ a b "North Korea Submarine Capabilities | NTI".
  3. ^ a b Miller 2003, p. 472.
  4. ^ a b c "SSC Sang-o Class". GlobalSecurity.org.
  5. ^ "SANG-O-class SSM | Military Periscope".
  6. ^ "Asia's Submarine Race". 13 November 2013.
  7. ^ Joseph S. Bermudez Jr. (21 March 2011). "KPN deploys new version of Sang O class Coastal Submarine". KPA Journal.
  8. ^ a b "South Korea releases details of North Korea coastal submarine". 25 April 2011.

Bibliography[edit]

  • Miller, David, ed. (2003). Illustrated Directory of Special Forces. St. Paul, Minnesota: Salamander Books. ISBN 978-0760314197.