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Dokdo-class amphibious assault ship

Class of South Korean LPH assault ships

Field	Value
infobox_caption	Dokdo-class amphibious assault ship
section1	{{Infobox ship/image
image	ROKS Dokdo (LPH 6111) - Invincible Spirit.jpg
image_caption	ROKS Dokdo steams in the East Sea in 2010
section2	{{Infobox ship/class overview
name	Dokdo class
builders	Hanjin Heavy Industries
operators
class_after	CVX (Planned)
cost	*KRW 325,770,000,000 (2005)
total_ships_planned	2
total_ships_completed	2
total_ships_active	2
section3	{{Infobox ship/characteristics
type	Landing platform helicopter
displacement	14,300 tons (empty) / 19,500 tons (full)
length	199 m
beam	31 m
draught	7 m
propulsion	*4 SEMT Pielstick 16 PC2.5 STC marine diesel engine
*{{convert	32,000	shp	MW	order	flip	abbr=on	lk=on}}
speed	*23 kn maximum
boats	2 LCAC (LSF-II)
capacity	*Up to 200 vehicles (including tanks)
troops	720 marines
crew	330
sensors	*SMART-L air search radar
EW	ESM/ECM:SLQ-200(v)5K SONATA, Chaff launcher
armament	* Guns:
aircraft	*Up to 15 helicopters
aircraft_facilities	Flight deck with 5 landing spots and hangar

US$
32,000 shp

18 kn cruising

       *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

LPH-6111: 2 × Goalkeeper CIWS
LPH-6112: 2 × Phalanx CIWS
Missiles:
LPH-6111: 1 × RIM-116 Rolling Airframe Missile
LPH-6112: 4 x K-VLS cells
(UH-1H, UH-60P or Super Lynx)
(Can support VTOL jets)

The Dokdo-class amphibious assault ship () is a class of landing platform helicopter (LPH) and amphibious assault ships operated by the Republic of Korea Navy (ROKN). It was designed and built by Hanjin Heavy Industries (HHIC) to enhance South Korea's amphibious operation capability in terms of assault and military operations other than war (MOOTW).

Development

The ROK Navy required a landing ship with amphibious capabilities in its program to build a blue-water navy which was met by the Dokdo design. The Solgae-class LCAC — made by HHIC — was selected as the landing craft air cushion (LCAC) to operate from the ship.

Specifications

The LPX is an amphibious warfare ship with a well deck to accommodate amphibious assault vehicles (AAVs) and two LCACs, the first of which (LSF 631) was acquired in April 2007. The ship is 199 meters (652 ft 11 in) long, 31 meters (101 ft 8 in) wide, with a 14,000-ton (empty) or 18,000-ton (full) displacement, and was built incorporating stealth technologies.

As a high-speed amphibious ship, the LPX was based on the concept of "over-the-horizon assault." The idea comprises a military operation in which an amphibious landing is conducted with high-speed air-cushioned vehicles and helicopters from beyond the horizon, where the enemy cannot easily detect or attack them. 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 has a carrying limit of 720 marines and 300-plus crew members, ten tanks, ten trucks, 7 AAVs, three field artillery pieces, and two LCAC hovercraft. It can also carry ten helicopters when no ground vehicles are on its hangar deck.

The flight surface is also sprayed with urethane, which can support VTOL aircraft. South Korea is considering the purchase of F-35B fighters to operate from its Dokdo-class ships. Currently, the LPX operates mainly UH-1H and UH-60P. However, both are designed for land‐based operations and lack abilities for ship-borne operations, such as protection against damage from salty breezes, making them challenging to operate on-board continuously. 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.

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 pre-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 could 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.

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 and the Royal Thai Navy's .

Ships in the class

Name		Pennant number		Builder		Launched		Commissioned		Status

Plans

''Dokdo'' conducts well-deck operations with a US Navy LCAC.

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. However, as of December 2022, no such plans have been officially declared.

In November 2024, the Republic of Korea Navy tested the Gray Eagle STOL UAV on ROKS Dokdo amphibious assault ship. The Gray Eagle UAV took off from Dokdo, flew twice close to her port side to perform a "simulated landing procedure", but did not land on the ship. It then headed to the Naval Air Command in Pohang and landed on the runway there.

References

김, 귀근. (2019-08-14). "국방중기계획, 軍핵심능력 확보주력…EMP탄 개발·정찰위성 배치".
"Cost of Republic of Korea Armed Forces Weapons".
"Dokdo Class Landing Platform Helicopter (LPH)".
(July 2005). "Dokdo Class Landing Platform Helicopter (LPH)". Naval Technology.
(2010-02-17). "Hanjin Heavy Industries & Construction (HHIC) - LPH Landing Ship (Dokdo) & LSF II Assault Hovercraft". YouTube.
Yoshifuru Otsuka. (December 2012). "Amphibious forces of China, Taiwan and South Korea". [[:ja:世界の艦船.
Yeo, Mike. (28 December 2017). "Japan, South Korea may refit naval ships for F-35 fighters".
김성만. (2011-10-08). link
(18 April 2013). "KAI to develop amphibious assault variant of Surion". Flightglobal.com.
(16 May 2018). "South Korea selects mix of local, Israeli sensors for second Dokdo-class helicopter carrier".
(21 May 2018). "South Korea changes mission for its newly launched assault ship". Defense News.
(30 May 2018). "South Korea to deploy K-SAAM on second Dokdo class".
(25 December 2017). "S. Korea's military mulls operating F-35B stealth aircraft aboard new amphibious assault ship".
(27 December 2017). "South Korea, Japan Mull F-35Bs for Amphibious Assault Ships".
Newdick, Thomas. (2024-11-13). "Gray Eagle STOL Drone Flies From South Korean Amphibious Assault Ship".
Cha, Eunhyuk. (2024-11-13). "ROK Navy tests Mojave drone aboard ROKS Dokdo".

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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