South Korea Begins Construction of First Indigenous Submarine
Article Posted on : - May 19, 2016



SEOUL (BNS): South Korea's Daewoo Shipbuilding and Marine Engineering has formally started the construction of the country's first indigenous attack submarine with the goal of deploying it by 2020.

The shipbuilder laid down the keel for the first Chang Bogo III-class submarine at its dockyard in Geoje on May 17, the official Yonhap news agency reported quoting a statement from the Defense Acquisition Program Administration (DAPA).

The steel cutting event for the vessel was held in November 2014. Under the Chang Bogo III (KSS-III) project, Daewoo will build three 3,000-ton attack submarines by 2024. Each vessel will be armed with six vertical launch missile tubes.

These new ships will be the first batch of the third variant of the Navy's Chang Bogo-class subs.

According to the DAPA, Daewoo had been producing previous versions of the vessel under a license with the German developer Howaldtswerke-Deutsche Werft, but the Chang Bogo III will be the first South Korean naval submarine to be both designed and produced domestically.

While the present Chang Bogo-class submarines are equipped with torpedoes and anti-ship missiles, the new batch of subs will be able to launch locally made Hyunmoo-2B ballistic missiles that have a range of over 500 kilometers, the Yonhap report said.

The South Korean Navy currently operates over 10 submarines, including the 1,200-ton Type 209 subs (Chang Bolo class) and the 1,800-ton Type 214 subs.

The new 3,000-ton class of submarines will be the largest ones to be operated by the Republic of Korea Navy.

http://brahmand.com/news/SKorea-begi...4875/1/13.html

Wednesday, 25 May 2016 17:36
South Korea's DAPA Selects DSME for KSS-III Batch II Heavy Submarine Design & Construction




South Korea's Defense Acquisition Program Administration (DAPA) announced today that Daewoo Shipbuilding & Marine Engineering (DSME) was selected as contractor for “KSS-III Batch-II Design and construction of the first hull”.

Under the Jangbogo III programme, the first submarine is due to be launched in 2018 and handed over to the Republic of Korea Navy at the end of 2020 following two years of sea trials. The second submarine will be delivered at the end of 2022. KSS-III is expected to be produced in three batches:

• Batch-I consists in the first two hulls to be built by DSME. Remaining tender for the third hull will be released in late 2016.
  
• Batch-II will consist in three hulls with some design changes. They will be fitted with a greater deal of South Korean technology.
  
• Batch-III will consists in the three remaining hulls (for a total of nine KSS-III submarines across all batches). The last submarine is expected to be delivered in 2029.
  

The first steel cutting ceremony for the first Batch-I vessel was held in November 2014 and the keel laying took place last week.

The original Batch-I design of the submarine includes 6x VLS (vertical launch system) tubes. They would accomodate a future cruise missile in development by LIG Nex1 while the launchers would be provided by Doosan. It was announced earlier in the program that Spanish company INDRA was selected to provide its electronic defense system (ESM) PEGASO and Babcock of the UK would design and manufacture the Weapon Handling System for the Batch-I submarine.

It was officialy announced during Euronaval 2014 that Sagem would supply the optronic masts for the class. Flank array sonars will be provided by Korean company LIG Nex1. Hanwha Thales contacted Navy Recognition by email to explain they would supply KSS-III's combat management system. The submarine will be fitted with south korean lithium-ion battery technology.

The North Korean SLBM launch last month led South Korea's Ministry of National Defense to disclose some details on the KSS-III Batch-II plan ahead of contract announcement.

On April 25, there was a Congressional Hearing session held immediately after North Korea's SLBM launch, which raised some important questions about the ROK Navy's submarine capabilities to counter this threat.

In response to questions whether ROK Navy was currently developing capabilities to counter SLBM threat, the ministry confirmed that KSS-III Batch-II will undergo redesign process before construction (lasting until December 30, 2018) to accommodate some important capability upgrades. These upgrades will give the Batch-II Submarines better capabilities at both attacking strategic land-based facilities and performing anti-submarine warfare.



Expected changes of Batch-II compared to Batch-I:

• Lengthened hull (bringing displacement approx. from 3000t to 4000t)
  
• Increase of VLS cells from 6 to 10
  
• Indigenous combat system and sensors
  
• LiB and, potentially, High-Temperature Superconductor (HTS) motor for integrated full electric propulsion system
  

Detailed specifications of KSS-III (Jangbogo 3) Batch-I:

• Full-length 83.5m
  
• Beam 9.6m
  
• Pressure sensor diameter 7.7m
  
• Draught 7.62m
  
• Crew: 50 sailors
  
• M aximum speed: 20 knots
  
• Cruising range" 10,000 nm
  
• Surface tonnage: 3358 tons
  
• Submerged tonnage: 3705 tons
  

http://www.navyrecognition.com/index...struction.html