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The Dokdo-class amphibious assault ship (Korean: 독도급 대형수송함, Hanja: 獨島級 大型輸送艦) is a class of landing platform helicopter (LPH) amphibious assault ships operated by the Republic of Korea Navy (ROKN). Designed by Hanjin Heavy Industries (HHIC), the requirements for the amphibious landing ships were to enhance South Korea's amphibious operation capability, both in terms of assault and military operations other than war (MOOTW).

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Dokdo-class amphibious assault ship

ROKS Dokdo moored at Busan in August 2009
Class overview
Name	Dokdo class
Builders	Hanjin Heavy Industries
Operators	Republic of Korea Navy
Succeeded by	CVX (Planned)[1]
Cost	KRW 325,770,000,000 (2005)[2] US$ 285 million
Planned	2
Completed	2
Active	2
General characteristics
Type	Landing platform helicopter
Displacement	14,300 tons (empty) / 19,500 tons (full)
Length	199 m (652 ft 11 in)
Beam	31 m (101 ft 8 in)
Draught	7 m (23 ft 0 in)
Propulsion	4 SEMT Pielstick 16 PC2.5 STC marine diesel engine 24 MW (32,000 shp)
Speed	23 knots (43 km/h; 26 mph) maximum 18 knots (33 km/h; 21 mph) cruising
Boats & landing craft carried	2 LCAC (LSF-II)
Capacity	Up to 200 vehicles (including tanks)
Troops	720 marines
Crew	330[3]
Sensors and processing systems	SMART-L air search radar ELM-2248 (MF-STAR) multifunction surveillance radar MW08 surface search radar LIG Nex1 SPS-550K AN/SPS-95K navigation radar TACAN VAMPIR-MB optronic sight
Electronic warfare & decoys	ESM/ECM:SLQ-200(v)5K SONATA, Chaff launcher
Armament	2 × Goalkeeper CIWS 1 × RIM-116 Rolling Airframe Missile
Aircraft carried	Up to 15 helicopters[4] (UH-1H, UH-60P or Super Lynx) (Can support VTOL jets)
Aviation facilities	Flight deck with 5 landing spots and hangar

Development

The ROK Navy required a versatile landing ship with amphibious capabilities in its program to build a blue-water navy. In the end Hanjin's Dokdo design was chosen for this need. The Solgae-class LCAC—also built by HHIC— was chosen as the landing craft air cushion (LCAC) to operate from the ship.[5]

Specifications

The LPX is an amphibious warfare ship which includes a well deck to accommodate amphibious assault vehicles (AAVs) and two LCAC, the first of which (LSF 631) was acquired in April 2007. The ship is 199 metres (652 ft 11 in) long, 31 metres (101 ft 8 in) wide, with a 14,000-ton (empty), or 18,000-ton (full) displacement and was built incorporating stealth technologies. It has been said to be one of the most advanced vessels in the Asian Pacific.[5]

As a high-speed amphibious ship, the LPX was based on the concept of "over-the-horizon assault." As the name indicates, the "over-the-horizon assault" comprises a military operation in which an amphibious landing is conducted with high-speed air-cushioned vehicles and helicopters from beyond the horizon, where they cannot be easily detected or attacked by the enemy. The conventional landing ship tank (LST) has to approach the coastline for landing, at the risk of being fired upon by the enemy.

The LPX can carry 720 marines (+300 crew members), 10 tanks, 10 trucks, 7 AAVs, three field artillery pieces, and two LCAC hovercraft capable of landing on enemy shores doing 40 knots (74 km/h; 46 mph)—a mix that enables it to launch troop landings from both sea and air. She can also carry 10 helicopters when there are no ground vehicles on her hangar deck.[6]

The flight surface is also sprayed with urethane, which can support VTOL jets, like Harriers. South Korea is considering the purchase of F-35B fighters to operate from its Dokdo-class ships.[7] Currently, the LPX operates mainly UH-1H and UH-60P. However, both of these are designed for land‐based operations and lack abilities for ship-borne operations such as protection against damage from salty breezes making them difficult to operate on-board continuously.[8] The KUH-Amphibious, the sea-based amphibious variant of the KAI Surion, is now under development. Production is planned to commence in late 2015 with some 40 helicopters planned.[9]

Self-defense armament includes the RIM-116 Rolling Airframe Missile system. The Goalkeeper close-in weapon system (CIWS) was purchased in January 2003 from Thales, at a per-set price of 13,000,000,000 won (roughly $15,000,000).

The second ship of the class, Marado, was built with some changes compared to Dokdo. The flight deck is adapted to accommodate two V-22 Ospreys, while Dokdo was able to only carry one. In place of the Thales SMART-L multibeam radar and MW08 surveillance radar, Marado uses the Elta Systems EL/M-2248 MF-STAR multifunction surveillance radar and LIG Nex1 SPS-550K 3-D air and surface surveillance radar. It also has a different weapons suite than the 30 mm Goalkeeper and RAM, instead using two 20 mm Phalanx CIWS and having a K-VLS at the rear of the superstructure for the locally developed K-SAAM.[10][11][12]

Dokdo is similar in size to the light aircraft carriers derived from the Sea Control Ship such as the Spanish Navy's former aircraft carrier Príncipe de Asturias and the Royal Thai Navy's Chakri Naruebet.

Ships in the class

Name	Pennant number	Builder	Launched	Commissioned	Decommissioned	Status
ROKS Dokdo	LPH-6111	Hanjin Heavy Industries	12 July 2005	3 July 2007		Active
ROKS Marado	LPH-6112	Hanjin Heavy Industries	14 May 2018	28 June 2021		Active

Plans

Some proposed uses for the ship include UN peacekeeping operations and disaster relief.

The Korean news agency Yonhap reported in December 2017 that the Korean military was considering operating F-35B aircraft from the Dokdo-class amphibious assault ships.[13][14]

First steps to a blue water navy

In a speech delivered in March 2001, Kim Dae Jung stated that his administration was aiming to build a navy that "will defend the national interests in the five oceans and perform a role in defending world peace." By the year 2020, the ROK Navy plans to deploy two or three rapid response fleets, each comprising 1 Dokdo class, 2 Sejong the Great class, 4 Chungmugong Yi Sun-sin class, 1 Gwanggaeto the Great class, and possibly a number of Incheon-class frigates and 2 or 3 Type 214 submarines.

ROK Navy's Rapid Response Fleet:

• Dokdo-class LPH (flagship)
• Sejong the Great-class destroyer (KDX-III) Aegis Combat System
• Chungmugong Yi Sun-sin-class destroyer
• Gwanggaeto the Great-class destroyer
• Incheon-class frigate
• Type 214 submarine (diesel-electric)

References

External links

• Dokdo class LPH - ROK Navy
• Global security article on the LP-X
• LPX Doko launching ceremony pictures
• Naval Technology entry for the Dokdo class
• https://namu.wiki/w/%EB%8F%85%EB%8F%84%EA%B8%89%20%EB%8C%80%ED%98%95%EC%88%98%EC%86%A1%ED%95%A8?from=%EB%8F%85%EB%8F%84%EA%B8%89%20%EA%B0%95%EC%8A%B5%EC%83%81%EB%A5%99%ED%95%A8

На других языках

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[de] Dokdo-Klasse

Die Dokdo-Klasse (Hangeul: 독도급 강습상륙함, Hanja: .mw-parser-output .Hani{font-size:110%}獨島級強襲上陸艦), auch als LPX – Landing Platform eXperimental bezeichnet, ist eine Klasse von zwei Amphibischen Angriffsschiffen (Hubschrauberträgern) der Marine der Republik Korea (ROKN).

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- [en] Dokdo-class amphibious assault ship

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[fr] Classe Dokdo

Les navires de classe Dokdo (anciennement LP-X) sont des navires d'assaut amphibie (Landing Platform Helicopter selon la liste des codes des immatriculations des navires de l'US Navy) de la Marine de la République de Corée, conçus pour déployer des forces terrestres sur des rives ennemies. En 2021, deux navires de cette classe sont en service.

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[ru] Универсальные десантные корабли типа «Токто»

Универсальные десантные корабли типа «Токто» — серия вертолетоносцев проекта «LPX» ВМС Республики Корея, начатая 12 июля 2005 на верфях Hanjin Heavy Industries & Constructions Co. в Пусане. Названный в честь островов Токто — территории Южной Кореи, оспариваемой Японией, головной корабль серии был принят 3 июля 2007.

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