By Joseph S. Bermudez Jr.
15 May 2014
Summary Recently, commercial satellite imagery has identified two new North Korean helicopter carrying frigates. These are the largest surface combatants constructed by the DPRK’s Korean People’s Navy (KPN) in 25 years and appear to be primarily designed to counter what Pyongyang sees as a growing threat from South Korea’s acquisition of submarines that began in the early 1990s. Moreover, these vessels may have an important secondary role: the protection of fisheries in the West and East Seas, which has obvious important security implications for the Republic of Korea, Japan and China. Their introduction into the North Korean fleet may also represent an evolutionary step in the development of naval strategy to include helicopter anti-submarine operations. Construction began in 2006-07 and both ships were launched during 2011-12. However, it is unclear whether they have been commissioned and are ready for service. Nevertheless, should the KPN push aggressively to commission and operate these new vessels, it will still likely take several years to fully integrate their new capabilities into fleet operations. The construction of these vessels and other new classes of naval combatants over the past decade has been achieved during a period of prolonged and expanding international economic sanctions against North Korea as well as almost weekly media reports of its military decline, and national economic and industrial stagnation. North Korea’s deployment of new helicopter frigates may be an important wakeup call not only about the overall effectiveness of sanctions in constraining Pyongyang’s conventional military programs, but also the need to carefully and realistically reevaluate reports of its conventional military decline. North Korea’s Naval Expansion Program: A New ASW Helicopter Frigate During the late 1990s, as North Korea was emerging from a prolonged period of famine, floods and economic collapse, the Korean People’s Navy initiated a modest but wide-ranging modernization and shipbuilding program. That program included:
- Introduction of 14.5 mm and 30 mm Gatling-gun close-in-weapon-systems (CIWS) to replace old single- and twin-mount systems on existing patrol vessels
- Construction of a class of small catamaran-hulled fast patrol craft with at least two subclasses (PCF and PCFG)
- Construction of a class of very slender vessels (VSV) with at least three subclasses including patrol (PCF) and high-speed infiltration landing craft (HILC)
- Construction of a anti-submarine warfare helicopter frigate (FFH)
Figure 1. Location Map During the 1990s, the vessel was moved to the Singyo-ri Patrol Base on the east coast and in the mid-2000s underwent refitting and its landing deck was refurbished. The vessel spent most of its remaining career at Singyo-ri until June-July 2007 when it was moved back to the No. 28 Shipyard in Najin and finally scrapped in mid-2009.
Figure 2. Soho-class FFGH, No. 823, seen at its Singyo-ri Patrol Base on North Korea's east coast on November 5, 2006.[caption id="attachment_6088" align="aligncenter" width="300"] Note: image rotated. For all images, click to enlarge. Image © 2006 DigitalGlobe, Inc. All rights reserved. For media licensing option, please contact email@example.com.[/caption]
Figure 3. A Mi-4PL ASW helicopter seen on the deck of Soho-class FFGH No. 823 sometime during 2004-2007.[caption id="attachment_6089" align="aligncenter" width="300"] Photo: KCTV screengrab.[/caption] New Helicopter Frigates The failure of the Soho-class FFGH combined with the South Korean Navy’s aggressive long-term expansion of its submarine forces begun in the early 1990s, presented the KPN with a serious challenge given its declining antisubmarine warfare capabilities. Pyongyang was unable to address that challenge immediately because of economic hardship, but in the late 1990s, the KPN initiated a modest but wide-ranging modernization and shipbuilding program upgrading existing patrol craft as well as constructing a small catamaran-hulled fast patrol craft. That program eventually included a new class of small ASW helicopter carrying frigate (FFH) which is believed to have begun during 2006-07 with the decision to scrap the Soho FFGH. Design of the vessel was likely the responsibility of the Academy of National Defense Science’s Namp’o Ship Design Institute in cooperation with the Maritime Research Institute (a.k.a., Ship Research Institute), while the Second Economic Committee’s 6th Machine Industry Bureau oversaw construction.
Figure 4. The Namp’o FFH seen berthed at the Namp’o Shipyard on December 27, 2013.[caption id="attachment_6090" align="aligncenter" width="300"] Visible in this image are the flight deck with circular “H” helicopter landing zone and four probable RBU-1200 rocket launchers on the bow. Adjacent to it is one of the KPN’s new 30 m-class VSV stealth patrol craft. Note: image rotated. Image © 2013 DigitalGlobe, Inc. All rights reserved. For media licensing option, please contact firstname.lastname@example.org.[/caption]
Figure 5. Another Namp’o FFH seen berthed at the No. 28 Shipyard in Najin on January 17, 2014.[caption id="attachment_6091" align="aligncenter" width="300"] As with the Namp’o vessel, visible are the flight deck with circular “H” helicopter landing zone and four probable RBU-1200 rocket launchers on the bow. Note: image rotated. Image © 2014 DigitalGlobe, Inc. All rights reserved. For media licensing option, please contact email@example.com.[/caption] Recent commercial satellite imagery spotted the two new FFHs, believed to have been built at the Namp’o Shipyard and the No. 28 Shipyard in Najin. The vessel located at Namp’o was laid down in early 2010 and launched in about October 2011. The vessel located at Najin was laid down in early 2011 and launched by June 2012. It is unknown if either vessel has been commissioned. Imagery indicates the two vessels are identical, measuring approximately 76 m x 11 m with an approximately 29 m x 11 m flight deck and armed with a suite of ASW weapons including rocket launchers and a helicopter as well as what may be a close-in weapons systems to defend against anti-ship missiles and small anti-aircraft missile mounts. Given the KPN’s tendency to mount anti-ship missiles on its larger combatants, these vessels could be armed with a variant of the Chinese C-802 (e.g., Iranian Ghader) in the future. The configuration of the superstructure forward of the flight deck is suggestive of a small helicopter hanger but this remains to be confirmed.
Table 1. Estimated Characteristics, new North Korean FFH
|Armament||4 x RBU 1200 ASW rocket launchers 1(?) x 30mm CIWS|
|Helicopter||1 x Mi-4PL or Mi-14PL|