잠수함 손원일급 잠수함 성능개량

[위종민]

제156회 방추협에서 KSS-II 성능개량 사업이 통과됐네요. 

전투체계, 소나체계를 국산화하고 Link-11을 Link-22로 성능개량한다고 합니다. 사업기한은 2025년~2036년이고 총사업비는 8,000억이네요. 

https://www.dapa.go.kr/dapa/na/ntt/selectNttInfo.do?bbsId=326&nttSn=44785&menuId=678 

제156회 방위사업추진위원회 결과작성일첨부파일

2023.08.18

• 230818 [방사청 보도자료] 제156회 방위사업추진위원회 결과.hwp  [51 KB]미리보기

제156회 방위사업추진위원회 결과


□ 제156회 방위사업추진위원회(이하 방추위)가 8월 18일(금) 오전 10시에 개최되었습니다.


□ 아래 안건은 오늘 방추위에서 심의되었습니다.
 ① KSS-II 성능개량 사업추진기본전략(안)
 ② 중고도정찰용무인항공기(MUAV) 양산계획(안)
 ③ 연합해상전술데이터링크(Link-22) 사업추진기본전략 수정(안)


□‘KSS-Ⅱ 성능개량 사업’은 해군에서 운용 중인 KSS-Ⅱ 잠수함의 임무능력을 향상시키기 위하여 전투체계, 소나체계 등의 노후장비를 최신 국산화 장비로 교체하는 성능개량 사업입니다. 이번 방추위에서는 KSS-Ⅱ 성능개량을 업체주관으로 연구개발하는 사업추진기본전략(안)을 심의？의결하였습니다.
 ㅇ 본 사업을 통해 KSS-Ⅱ 잠수함의 생존성, 은밀성을 향상하여 잠재적 위협에 대한 감시ㆍ억제능력이 강화될 것으로 기대합니다. 
     * 사업기간(예정) : ’25~’36년, 총사업비 : 약 8,000억 원
□‘중고도정찰용무인항공기(MUAV) 사업’은 공군의 독자적인 감시·정찰을 위한 중고도정찰용무인항공기를 연구개발 후 양산하는 사업입니다.  이번 방추위에서 양산사업 추진을 위한 양산계획(안)을 심의？의결하였습니다. 
     * MUAV : Medium-altitude Unmanned Aerial Vehicle 
 ㅇ 본 사업을 통해 북한 종심지역 표적정보에 대한 지속적인 정보수집 및 정찰 임무 수행이 가능하고, 최고 성능의 무인기 개발 기술 확보로 국내 무인기 사업의 기반을 마련할 것으로 기대합니다. 
     * 사업기간(예정) : ’06~’28년, 총사업비 : 약 9,800억 원


□ ‘연합해상전술데이터링크(Link-22) 사업’은 Link-11을 항재밍 등 주요 성능이 향상된 Link-22로 성능개량 하는 사업입니다. 이번 방추위에서는 Link-22 사업 대상전력 중 하나인 KSS-II 전력의 획득방안을 국외구매에서 국내 연구개발로 변경하기 위한 사업추진기본전략 수정(안)을 심의？의결하였습니다. 
 ㅇ 본 사업을 통해 연합 해상전력 간 원활한 전술정보 유통으로 한？미간 상호운용성 확보능력 향상에 기여할 것으로 기대합니다.
     * 사업기간(예정) : ’22~’29년, 총사업비 : 약 4,300억 원  <끝>

https://www.navalnews.com/naval-news/2023/08/south-korea-to-upgrade-kss-ii-son-won-il-class-submarines/

South Korea to upgrade KSS-II Son Won-il class Submarines - Naval News

ROKS Jeong Ji (SS-073), the second Son Won Il-class KSS-II submarine, at Busan naval base during MADEX 2019.

South Korea To Upgrade KSS-II Son Won-Il Class Submarines

South Korea allocated funding to conduct a comprehensive upgrade of its KSS-II Son Won-il class submarines. It will also upgrade most vessels in the fleet with the new Link-22 datalink. Meanwhile, the KSS-I Jang Bogo-class upgrade program is ongoing...

Eunhyuk Cha  22 Aug 2023

During the 156th Defense Project Promotion Committee meeting on August 18, South Korea’s Defense Acquisition Program Administration (DAPA) decided to allocate approximately 595.68 million USD for a comprehensive upgrade of the in-service KSS-II Son Won-il class submarines. Additionally, 320.17 million USD will be invested in the Maritime Tactical Data Link project, specifically for the Link-22 upgrade.

KSS-II upgrade program

The first KSS-II Son Won-il class submarine was commissioned in late 2007. With a displacement of 1,400 tons, it surpasses the capabilities of the preceding KSS-I Jang Bogo-class submarine in underwater operations. This is attributed to its AIP (Air Independent Propulsion) system and its ability to fire the Hyunmoo-III cruise missiles, which can strike targets up to 1,000 km away. The technology behind the KSS-II was derived from the German Type 214 submarine.

The upgrade program aims to enhance the operational capability of the KSS-II submarines currently in service. This will be achieved by replacing outdated systems, such as the combat management system (CMS) and sonar, with the latest indigenous equipment. An investment of approximately $595.68 million USD is allocated for this project, which is slated to run from 2025 to 2036. Through this upgrade, the survivability and combat capability of the KSS-II submarines are expected to improve, bolstering their capacity to monitor and deter potential threats for years to come.

About the Son Won-il class (Type 214)

SANTA RITA, Guam (June 5, 2019) – Republic of Korea Navy sailors aboard the Son Won-il class diesel-electric submarine ROKS Yun Bonggil (SS 077), prepare to conduct line handling duties as the submarine arrives at Naval Base Guam, June 5. Naval Base Guam is strategically located to support all submarines deployed to 7th Fleet and is home port to four Los Angeles-class attack submarines. (U.S. Navy photo by Mass Communication Specialist Seaman Chase Stephens /Released)

The Son Won Il-class were acquired as part of the KSS-II program and is based on Type 214, a diesel-electric submarine developed by Howaldtswerke-Deutsche Werft. The vessels, which are named after the ROK Navy’s first chief of naval operations, Admiral Son Won-il, were a major milestone due to their use of the air-independent propulsion system.

Of the nine submarines in the ROKN’s inventory, the first three were built by Hyundai Heavy Industries (HHI) with the remainder being split between HHI and Daewoo Shipbuilding & Marine Engineering (DSME, now known as Hanwha Ocean). The first vessel was commissioned in 2007. The last vessel of the class, the ROKS Shin Dol-seok, entered service in 2020.

Son Won Il-class Specifications:

• Displacement: 1,690 t surfaced / 1,860 t submerged
• Length: 65 m
• Beam: 6.3 m
• Draught: 6 m
• Weapons: 8 x 533 mm torpedo tubes, 4 subharpoon-capable
• Propulsion: 2 x MTU 16V-396; 2 x Piller; AIP system: 2 x HDW PEM; 1 x Siemens Permasyn (2.85 MW)
• Speed: 10 knots surfaced; 20 knots submerged
• Range: 12,000 nautical miles surfaced; 420 submerged
• Crew: 27

Ongoing KSS-I upgrade

A KSS-I submarine after going through the PIP upgrade program. Note the addition of the TASS. ROK Navy picture.

The ROK Navy is currently enhancing the capabilities of its older attack submarines in service: The KSS-I Jang Bogo-class. This class is a variant of the Type 209, originally constructed by the German submarine manufacturer Howaldtswerke-Deutsche Werft. The first ship of the KSS-I class was built in Kiel, Germany. However, starting with the second ship, assembly and construction took place in Korea. With a displacement of 1,200 tons, the KSS-I was the ROK Navy’s inaugural attack submarine. First commissioned in 1992, these submarines encountered maintenance challenges due to imported parts that were either discontinued or difficult to procure.

To address these challenges, the ROK Navy initiated an upgrade program for the KSS-I submarines. Known as “performance improvement program” or “PIP”, it incorporates indigenous equipment. This included a new CMS developed by LIG Nex 1, the addition of a Towed Array Sonar System (TASS), and an enhanced attack periscope. Following the PIP, the ROK Navy’s assessment revealed that the submarines now have a detection range that is three times more effective against low-frequency targets and a target tracking capacity that has quadrupled. In a recent development, Hanwha Ocean completed the upgrade of the KSS-I Yi Jong-mu (SS 066) last month, and it now awaits delivery to the ROK Navy.

KSS-II Maritime Tactical Data Link (MTDL) Link-22 upgrade

The Maritime Tactical Data Link (MTDL) is a digital communication network designed to facilitate real-time sharing and broadcasting of target information detected at sea, underwater, and in the air. This network seamlessly integrates surveillance systems, command systems, and strike systems. Its primary function is to support combined forces in executing coordinated operations against naval warfare, submarine warfare, and ballistic missile defense.

Link-22 upgrade aims to transition from Link-11 to the more advanced Link-22. The KSS-II submarines are a priority to receive the Link-22 upgrade. The committee has decided to shift the acquisition method from foreign procurement to domestic purchase and development. An investment of $320.17 million USD is allocated for this upgrade. DAPA expects that the efficient dissemination of tactical information among combined maritime forces will bolster interoperability between the ROK Navy and allied navies such as the US Navy.

In a recent development, Hanwha Systems secured the contract for the Link-22 development. This contract was awarded by DAPA at the end of last year. Hanwha Systems plans to domestically develop the core components of Link-22, including the data link processor and network control software. The ship CMS and system integration, as well as the command post, are also expected to be integrated with Link-22.