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MessageSujet: KDDX Destroyer   KDDX Destroyer Icon_minitimeMer 23 Oct 2019 - 13:33

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MADEX 2019: HHI Unveils KDDX Design Concept For ROK Navy Future DDG


At MADEX 2019, the maritime defense exhibition which opened its doors today in Busan, South Korea, local shipyard Hyundai Heavy Industries unveiled the design of its KDDX.

Xavier Vavasseur  22 Oct 2019

KDDX is an upcoming requirement for the ROK Navy.

The formal requirement has not been issued yet, therefore HHI design is based on their experience and know how acquired in previous ROK Navy programs.


HHI’s KDDX is available in several configuration such as 3 different bows:

conventional bow
hi-bow
wave piercing (inverted bow)



HHI compared the benefits and comprimes of each bow type and found that the third option (inverted bow, similar to DDG 1000 of the U.S. Navy or the future frigate of the French Navy) offered the best advantages. The same bow design was adopted for a concept ship unveiled by HHI at MADEX 2019 as well.


HHI’s KDDX is 156 meters in length with a beam of 19 meters and a displacement of 6,500 tons. As far as weapon systems are concerned, HHI told us the design is fitted with 8x anti-ship missiles, 48x K-VLS forward and 16x K-VLS II aft. K-VLS II by Hanwha will be able to deploy new generation of missiles such as a new land attack cruise missile in development. On top of the helicopter hangar is a next generation CIWS currently in development with South Korea’s Agency for Defense Development (ADD) and which will be called “K-CIWS”. Naval News also learned last week during ADEX 2019 that the KDDX is set to feature a BAE Systems’ Mark 45 5 inch main gun with the new automated handling system (set to be installed aboard the Type 26 frigate). There are two helicopter hangars able to accommodate either Wildcat or MH-60R.


For sensor systems, KDDX will feature a new generation integrated mast. According to our information, HHI has entered a partnership with Hanwha Systems and their ship design show Hanwha’s I-Mast. HHI’s competitor for KDDX, DSME is negotiating with LIG Nex1 for a similar type of partnership. We will focus on each integrated masts in a different article. The other major innovation of the KDDX for sensor is the integrated sonar system: It is a next generation ASW system combining a hull mounted sonar and a towed array sonar.


KDDX will be fitted with an integrated electric propulsion system consisting in 2x propulsion motors (2x 25,000 kW), 2x gas turbine generators (2X 26,000 kW) and 2x diesel generators (2x 3,000 kW).

The crew complement will be between 160 to 180 sailors. The ship will benefit from HHI latest “Smart Ship” technologies.

Naval News

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MessageSujet: Re: KDDX Destroyer   KDDX Destroyer Icon_minitimeVen 5 Juin 2020 - 3:57

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South Korea Starts Bidding Process For ROK Navy’s KDDX Future Destroyer

KDDX Destroyer South-Korea-Starts-Bidding-Process-for-ROK-Navys-KDDX-Future-Destroyer-2-770x410

South Korea's Defense Acquisition Program Administration (DAPA) started on May 29 the competitive bidding process for the next generation destroyer of the Republic of Korea (ROK) Navy known as "Korea Next-Generation Destroyer" or KDDX.

According to the DAPA website, companies have until July 20 to submit their bid. South Korea’s two main shipbuilders, Hyundai Heavy Industries (HHI) and Daewoo Shipbuilding & Marine Engineering (DSME), are competing, each with their own design.


About KDDX Destroyer:

DAPA says that the “Korea Next-Generation Destroyer” program calls for the development of an “Original Korean Destroyer” class by incorporating the latest advancements in domestic shipbuilding and weapon technologies, in line with the “Smart Navy” initiative of the ROK Navy.

According to the program schedule, the basic design is expected to be completed by the second half of 2023. Detailed design and start of construction is set to take place four years from now (2024). The program calls for the construction of six vessels which will be smaller and lighter than the AEGIS type KDX III Batch I and II vessel, but with all Korean weapons and sensor suites. Two key drivers of the program are:

the implementation of the latest technologies in terms of ship automation, electric propulsion and future proofing
make the KDDX class more affordable to operate and maintain compared to the KDX III type destroyers
The future destroyer class will displace about 8,000 tons, and is expected to feature K-VLS only (no MK 41 cells) to deploy the latest missiles by LIG Nex1 such as the naval variant of the Hyunmoo-3C (Eagle-3 독수리-3) cruise missile with a range of 1,500 km as well as the naval variant of the Cheongung 3 (also known as L SAM) with a range of 150 km. It will also feature an advanced integrated mast (I-MAST) combining several sensors (TACAN, ESM, IFF, UHF, VHF, IRST) and radar arrays (in S and X bands) in a single mast.

Naval News learned during Seoul Airshow (ADEX 2019) that KDDX is set to feature a BAE Systems’ Mark 45 5 inch main gun with the new automated handling system (set to be installed first aboard UK’s Type 26 frigate).

HHI’s KDDX design:

KDDX Destroyer HHIs-KDDX-design-1024x404

HHI unveiled is KDDX design at MADEX 2019 defense show held last year in Busan. HHI’s KDDX is 156 meters in length with a beam of 19 meters and a displacement of 6,500 tons. As far as weapon systems are concerned, HHI told us the design is fitted with 8x anti-ship missiles, 48x K-VLS forward and 16x K-VLS II aft. On top of the helicopter hangar is a next generation CIWS for which funding as just been approved. The crew complement will be between 160 to 180 sailors.

HHI studied three bow types (conventional bow, hi-bow, wave piercing/inverted bow), compared the benefits and compromises of each and found that the third option (inverted bow, similar to DDG 1000 of the U.S. Navy or the future FDI frigate of the French Navy) offered the best advantages.



KDDX Destroyer KDDX-integrated-electric-propulsion-1024x595

HHI’s KDDX will be fitted with an integrated electric propulsion (IEP) system consisting in 2x propulsion motors (2x 25,000 kW), 2x gas turbine generators (2X 26,000 kW) and 2x diesel generators (2x 3,000 kW). A more classic “CODLOG” propulsion system was also studied, but IEP represents a step in technology and capabilities.

I-MAST by Hanwha Systems

KDDX Destroyer KDDX-I-MAST-by-Hanwha-Systems-1-300x200

KDDX Destroyer KDDX-I-MAST-by-Hanwha-Systems-2-300x225

KDDX Destroyer KDDX-I-MAST-by-Hanwha-Systems-3-1024x631

For sensor systems, KDDX will feature a new generation integrated mast. Naval News learned during MADEX 2019, HHI has entered a partnership with Hanwha Systems and their ship design show Hanwha’s I-Mast. HHI’s competitor for KDDX, DSME is negotiating with LIG Nex1 for a similar type of partnership (see below).

Video: https://youtu.be/5Y0OmO2UcXU?t=500

According to HHI, the other major sensor innovation of the KDDX is the integrated sonar system: It is a next generation ASW system combining a hull mounted sonar and a towed array sonar.

Smart ship technology development workshop

KDDX Destroyer Smart-ship-technology-development-workshop

HHI announced this week that it is pushing for full-scale development of ‘Korean Future destroyers’ by:

Holding a workshop on the latest ship technology with several experts in the field
Leading the defense industry by winning orders for next-generation destroyers
HHI is strengthening cooperation with Korea’s leading defense companies and research institutes to develop Korea’s future destroyer called ‘KDDX’. HHI and the Korea Shipbuilding & Marine Engineering Research Institute held a ‘next-generation advanced smart ship technology development workshop’ at the Human Resources Development Institute in Ulsan on June 2nd.

The workshop was attended by about 40 experts in design and research in the field of ships, including Nam Sang-hoon, head of HHI’s Special Ship Business Division, Ju Se-don, head of POSCO’s Steel Solutions Research Institute, Eo Sung-chul, head of Hanwha System’s defense division, and Song Kang-hyun, head of the Korea Shipboard Research Institute.

KDDX Destroyer South-Korea-Developing-the-new-CIWS-II-Close-In-Weapon-System-for-ROK-Navy-3-1024x668

The results of joint research undertaken over the past year were presented during this workshop:

Smartship solution field
Damage control and incident response field
Electric propulsion system field
Platform safety field
Combat system (integrated mast) field
The results of research on new technologies including the new material field, the stealth field, and the high-tech ship field, were also presented.

“We have greatly expanded our core manpower for the development of the latest ships, and we have successfully developed a Korean-style surface combatant by successfully consolidating Hyundai Heavy Industries’ experience in designing ships and the capabilities of domestic defense companies and research institutes.”


Nam Sang-hoon, Head of Special Ships Division, Hyundai Heavy Industries


video:https://youtu.be/5Y0OmO2UcXU?t=241

DSME’s KDDX Design

KDDX Destroyer DSMEs-KDDX-Design-1024x768

In its baseline configuration, DSME’s KDDX has a length of 155 meters, a beam of 18 meters and a draft of 9.5 meters for a displacement of 8,000 tons. It features 48x VLS cells forward, 16x VLS cells aft, 16x anti-ship missiles and 2x K-DAGAIE NG decoy launchers.

KDDX Destroyer MADEX-2019-DSME-Continues-Work-on-KDDX-Design-3


As previously explained (during our coverage of MADEX 2019), DSME has already signed a number of contracts with the ROK Navy in previous years:

DSME signed a KDDX early concept design contract with the ROK Navy back in 2013
DSME was awarded a contract to perform hull forms design studies in 2016 (see illustration above)
Finally, in 2019 DSME received a contract to conduct KDDX development studies with the ROK. This contract focuses on automation, crew reduction and “smart ship” concept in line with the ROK Navy new SMART Navy initiative.

I-MAST by LIG Nex1

KDDX Destroyer KDDX-I-MAST-by-LIG-Nex1-1024x648

LIG Nex1 and DSME were negotiating a partnership for the integration of LIG’s integrated mast (Hanwha being partnered with HHI). We were told during MADEX 2019 that this potential partnership will be non binding and that DSME remains open to work and integrate Hanwha’s I-MAST should the ROK Navy make this choice.

DSME announced in early May that it completed a preliminary study to apply its new electric propulsion system technology to “next-generation high-tech vessels”, including the KDDX. The Korea Electric Research Institute, Seoul National University and the Korean Register of Shipping also took part in this research project along side DSME.

Smart ship technology council

KDDX Destroyer DSME-KDDX-smart-ship-technology-council-1

In a more recent statement, the South Korean shipbuilder announced that it “is taking the lead in developing smart technologies that will be applied to the next-generation high-tech vessels of the Republic of Korea Navy”. A “smart ship technology council” was helf to share research results with experts in smart ship technology from the Navy, industry, academia and government-funded research institutes and accelerate technology development. The technical council was joined by the Navy’s Future Innovation Research Group, Korea University, Korea Institute of Machinery (KIMM), Korea Shipboard (KR), SK Telecom, LIG Nex1, Hanwha System, GE, Marine Electronics, and Inoshimulation to share research results in each field. The newly announced smart technology will be applied to the South Korean Navy’s first smart ship, the KDDX, which will serve as a key force in the Navy Vision 2045.

“DSME will lead the development of smart vessels that can win the future battlefield environment by forming an industry-academic alliance and one team with a sense of responsibility as a ship system company,”


Yoo su Joon, head of DSME’s special ship business division


video: https://youtu.be/SWIBOmw9VRQ?t=249

KDDX CMS and CIC

KDDX Destroyer MADEX-2019-LIG-Nex1-Proposes-Futuristic-CIC-with-Holograms-for-ROK-Navy-KDDX-Destroyer

The South Korean government approved on April 27, 2020, the program for the development of a new combat management system (CMS) for the KDDX. The announcement was made on the Defense Acquisition Program Administration (DAPA) website, along with two other programs (one for “Korean Joint tactical data link” and the other for “Tactical Information and Communication System”). The program will span over a period of 10 years (2020 to 2030) and has been allocated a budget of about 670 billion South Korean won (about 550 millions USD).

Two local companies, LIG Nex1 and Hanwha Systems (the same one as for the I-MAST) are set to compete for this development program. Both companies have experience and a proven track record of CMS (software) and CIC (hardware) development and production, both for domestic and export vessels. For example, Hanwha Systems developed and produced the CMS and CIC consoles for the FFX Batch I, II and III Frigates as well as the KSS III submarines of the ROK Navy. On the export fron, Hanwha System supplies the CMS for the BRP Jose Rizal class of the Philippine Navy. LIG Nex1 just completed the upgrade of the ROK Navy KSS I CMS (PIP program) and successfully exported its Naval Shield Combat Management System to Indonesia (upgrade aboard existing Type 209 submarines).

KDDX Destroyer LIG-Nex1-Proposes-Futuristic-CIC-with-Holograms-for-ROK-Navy-KDDX-Destroyer-1


During MADEX 2019, LIG Nex1 unveiled its CIC and CMS proposal for the future KDDX destroyer of the ROK Navy. The future Combat Information Center (CIC) and its Combat Management System (CMS) were being showcased to select VIPs, behind closed doors, on the LIG Nex1 booth during the show. Naval News got a special clearance to access this room and we even got to film it. Unfortunately we didn’t get access to a similar room on the Hanwha Systems booth, therefore we can not comment on Hanwha’s solution.

LIG Nex1’s CIC of the future features a large room with a 360° video wall. The truly unique feature of this CIC is the tactical table: It will be able to display true holograms (as in 3D hologram) without the use of smoke or vertical screen. LIG Nex1 told us that this tactical table will be using “light field display” holographic technology currently being fine tuned by their technology partner (and consumer electronics giant) LG. Light field displays use a microlens array to split an image into individual light rays. Using adequate encoding of the image shown, the display can create a light field directly in front of the viewer’s eyes, who can then focus on the various depths of a scene.


video: https://youtu.be/i8kLThU6ew4?t=353


https://www.navalnews.com/naval-news/2020/06/south-korea-starts-bidding-process-for-rok-navys-kddx-future-destroyer/


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