Sinpo-class submarine

The Sinpo class submarine, also called the Gorae ("whale")[4] or Pongdae class,[5] is a new class of submarine produced in North Korea. Only one submarine has been observed in service. It is the largest submarine designed and built for the Korean People's Navy.

Sinpo-B class
Class overview
Builders: Sinpo South Shipyard
Operators:  North Korea
Preceded by: Sang-O-class submarine
Succeeded by: Sinpo-C-class submarine[1]
Planned: 3 or more
Building: 1
Completed: 1
Active: 1
Laid up: 2
General characteristics
Type: Diesel submarine
Displacement: Submerged 1,650[2]-2,000 tons[1]
Length: 68m (estimated)
Beam: 6.5m (estimated)
Propulsion: Diesel-electric (?)
Speed: (estimated) 16 knots on surface, 10 knots dived. (estimated)
Range: 1,500 nautical miles (2,800 km) (estimated)
Complement: 70–80 (estimated)[3]
Crew: 30–50 (estimated)
Armament:

Pukkuksong-1 (KN-11)

C 3x Pukkuksong-3

Design and features

The design may be influenced by older Yugoslavian designs such as Heroj and Sava.[6] There has been speculation the design is influenced by modern Russian submarines of Kilo class, or Golf class submarine, but the submarine is significantly smaller than these designs.[7]

Despite being possibly less advanced and capable than western or South Korean vessels, they could still represent a significant step forward by the submarine fleet of the Korean People's Navy.

If the design is successful, the Sinpo class could replace the aging Romeo-class submarines. However it is possibly a one-off experimental submarine as the Korean People's Navy has built previously.[6]

Armaments

Satellite images suggest the presence of an opening on the conning tower indicating the presence of a launch tube for one or two missiles.[8]

In August 2016, during the annual joint US-South Korea military exercise, a submarine presumed to be this one launched what is believed to be a KN-11 ballistic missile into the Sea of Japan.[9] North Korea's first released pictures of the submarine associated it with the test of the KN-11 missile.[3]

Possible Golf-II conversion

South Korean media has suggested that North Korea managed to reverse-engineer or modify one of the old Golf-II hulls that North Korea imported in the early 1990s.[10] However, other western analyst source disagree with the Golf-II conversion theory.[11]

Sinpo-C

In September 2016 analysts at 38 North reported on a 10-metre diameter object detected on satellite images of North Korea's Sinpo South Shipyard, believing the object may be a construction jig or possibly a pressure hull of a new submarine.[12]

US intelligence detected new submarine being built at Sinpo which was considered a likely successor to Sinpo-B (Gorae) and labelled it Sinpo-C with an estimated submerged mass of over 2,000 tons and with an 11 metres beam.[1] 38 North also detected signs of submarine being built[13] and reported Satellite imagery from 5 November 2017 indicates a diameter of 7.1 metres.[14]

Tokyo Shimbun reported in September 2017, that new North Korean submarine in construction to weigh 3000 tons and have Air-independent propulsion.[15] Also in September 2017, Sekai Nippo too reported on 3000 ton submarine and added it is nuclear powered.[16]

Also, the SINPO-C ballistic missile submarine (SSB)[17] and the SINPO-class experimental ballistic missile submarine (SSBA) were built in the Sinpo South shipyard.[17]

Chosun Ilbo reported on April 5 of 2019 that 3000 ton ballistic missile submarine is being built at Sinpo.[18][19]

Satellite images of Sinpo shipyard from March and April 2019 indicate that submarine construction is still ongoing.[20]

gollark: Are you aware of the "correspondence principle"? It basically just means that your new theory has to match with all the previously found empirical evidence for other theories.
gollark: I don't think you understand what I'm asking here.
gollark: How can you distinguish these "birkeland currents" from the well-known and documented phenomenon of "gravity" and whatever else?
gollark: What does that actually *mean* in practice?
gollark: What predictions does it make which regular people can test easily?

See also

References
  1. Panda, Ankit. "The Sinpo-C-Class: A New North Korean Ballistic Missile Submarine Is Under Construction". The Diplomat. Retrieved 18 October 2017.
  2. "404: OK". www.hisutton.com.
  3. H I Sutton (27 August 2016). "Analysis - Sinpo Class Ballistic Missile Sub". Covert Shores. Retrieved 28 April 2017.
  4. Sinpo / GORAE-Class Ballistic Missile Sub, GlobalSecurity.org, accessed 2017-04-18
  5. "Sinpo Class (Gorae)". Military Edge. Foundation for Defense of Democracies. 6 July 2016. Retrieved 28 April 2017.
  6. Joseph s. Bermudez Jr. (19 October 2014). "The North Korean Navy Acquires a New Submarine". 38 North. U.S.-Korea Institute, Johns Hopkins University School of Advanced International Studies. Retrieved 4 November 2014.
  7. "Media Busters: Is North Korea Building a Ballistic Missile Submarine?". 38 North. U.S.-Korea Institute, Johns Hopkins University School of Advanced International Studies. 4 November 2014. Retrieved 8 November 2014.
  8. "North Korea's SINPO-class Sub: New Evidence of Possible Vertical Missile Launch Tubes; Sinpo Shipyard Prepares for Significant Naval Construction Program - 38 North: Informed Analysis of North Korea". 38north.org.
  9. Sam LaGrone (23 August 2016). "North Korea Fires Submarine Launched Ballistic Missile". USNI News. Retrieved 28 April 2017.
  10. "N. Korea launches ballistic missile submarine: gov't sources". Yonhap News Agency. 2 November 2014. Retrieved 8 November 2014.
  11. "Media Busters: Is North Korea Building a Ballistic Missile Submarine? - 38 North: Informed Analysis of North Korea". 38north.org.
  12. "Is North Korea Building a New Submarine?". 30 September 2016.
  13. "Sinpo South Shipyard: SLBM Test Not Imminent; Unknown Shipbuilding Program Underway - 38 North: Informed Analysis of North Korea". 11 October 2017.
  14. "North Korea's Submarine Ballistic Missile Program Moves Ahead: Indications of Shipbuilding and Missile Ejection Testing - 38 North: Informed Analysis of North Korea". 16 November 2017.
  15. https://www.upi.com/Top_News/World-News/2017/09/14/Report-North-Korea-completing-work-on-new-SLBM-submarines/6201505395767/
  16. http://www.worldtimes.co.jp/world/korea/80733.html
  17. "North Korea's Submarine Ballistic Missile Program Moves Ahead: Indications of Shipbuilding and Missile Ejection Testing". 38 North. Retrieved 11 December 2017.
  18. http://news.chosun.com/site/data/html_dir/2019/04/05/2019040500264.html
  19. http://english.chosun.com/site/data/html_dir/2019/04/05/2019040501685.html
  20. https://www.38north.org/2019/04/sinpo041219/
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