The King Sejong the Great class destroyers (Sejongdaewang-Ham or Hangul: 세종대왕급 구축함), also known as KDX-III, are guided missile destroyers of the Republic of Korea Navy manufactured by Hyundai Heavy Industries. The lead ship was launched 25th May 2007, sponsored by Kwon Yang-sook, the First Lady of the Republic of Korea and is expected to be commissioned in 2008. It will be deployed for naval operations in 2009 after one-and-a-half years of test operations. As of 2007, the ROK Navy had committed to 3 units with an option on three more.
[edit] BackgroundThe ship features the Aegis combat system (Baseline 7 Phase 1) combined with AN/SPY-1D multi-function radar antennae. The King Sejong the Great class is the third phase of the Republic of Korea Navy's Korean Destroyer eXperimental (KDX) program, a substantial shipbuilding program, which is geared toward enhancing ROKN's ability to successfully defend the maritime areas around Korea from various modes of threats as well as becoming a blue-water navy. The standard displacement of the King Sejong the Great class is 7,650 tonnes, while its full load displacement is 10,290 tonnes. [edit] ArmamentsKing Sejong the Great class destroyers' main gun is the 127mm/L62 Mk. 45 Mod 4 naval gun, an improved version of the same gun used on other warships from several foreign nations. Aside from firing the standard munition like its previous versions, the new gun can also fire EX-171 Extended-Range Guided Munitions, which has an extended range of 117 km. Point-defense armaments include a single 30 mm Goalkeeper CIWS and a RIM-116 Rolling Airframe Missile Block 1 21-round launcher, the first Aegis platform to carry RAM.[1] Anti-aircraft armament is consisted of SM-2 Block IIIB in 80-cell VLS. Anti-Submarine Warfare armaments consists of both K-ASROC Hong Sahng-uh (Red Shark) anti-submarine rockets and 32 K745 LW Cheong Sahng-uh (Blue Shark) torpedoes. Anti-ship capability is provided by SSM-700K Hae Sung (Sea Star) long-range anti-ship missile with performance similar to the American Harpoon. The ship will carry 16 of these missiles. Land-attack capability is provided by the recently-developed Hyunmoo IIIC (Guardian of the Northern Sky) cruise missile similar to the American Tomahawk. [edit] Missile
[edit] CapabilitiesKing Sejong the Great class destroyers' are often compared to Arleigh Burke class and Atago class because they utilize the AN/SPY-1 multi-function radar, have similar propulsion and capabilities. One notable difference between the King Sejong the Greats and Burkes is the number of VLS cells. King Sejong the Greats will have a capacity of 128 missiles, as opposed to 96 on the Arleigh Burke class and the Japanese Atago class destroyers. Another similarity to Arleigh Burke class Flight IIA and Atago class destroyers is the presence of full facilities for two helicopters, a feature missing from earlier Arleigh Burke and Kongō class destroyers. [edit] Equipment
[edit] Hull namesIn April 20, 2007, Chief of Naval Operations of the Republic of Korea Navy announced that the lead ship of KDX-III class destroyers will be referred as the King Sejong the Great. King Sejong the Great (Hangul:세종대왕) is the fourth king of the Joseon Dynasty of Korea. He is accredited with the creation of the Korean alphabet, Hangul. The name Ahn Yong-Bok was briefly considered for the ship's name as early as 2005.[1] [edit] Ships in the class
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