ROKS Choi Young (DDH-975) is a Chungmugong Yi Sun-sin class

Chungmugong Yi Sun-sin class destroyer

Chungmugong Yi Sun-shin class destroyers are multipurpose destroyers of the Republic of Korea Navy. The lead ship of this class, ROKS Chungmugong Yi Sunshin, was launched in May 2002 and commissioned in December 2003...

 destroyer

Destroyer

In naval terminology, a destroyer is a fast and maneuverable yet long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against smaller, powerful, short-range attackers. Destroyers, originally called torpedo-boat destroyers in 1892, evolved from...

 in the South Korea

South Korea

The Republic of Korea , , is a sovereign state in East Asia, located on the southern portion of the Korean Peninsula. It is neighbored by the People's Republic of China to the west, Japan to the east, North Korea to the north, and the East China Sea and Republic of China to the south...

n navy

Republic of Korea Navy

The Republic of Korea Navy or the ROK Navy is the branch of the South Korean armed forces responsible for conducting naval operations and amphibious landing operations. The ROK Navy includes the Republic of Korea Marine Corps, which is a quasi-autonomous organization...

. She is named after the Korean commander Yi Sun-sin

Yi Sun-sin

Yi Sun-shin was a Korean naval commander, famed for his victories against the Japanese navy during the Imjin war in the Joseon Dynasty, and is well-respected for his exemplary conduct on and off the battlefield not only by Koreans, but by Japanese Admirals as well...

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Design

Chungmugong Yi Sunshin was part of the first batch of Chungmugong Yi Sun-sin class destroyers that were delivered to the Republic of Korea Navy

Republic of Korea Navy

The Republic of Korea Navy or the ROK Navy is the branch of the South Korean armed forces responsible for conducting naval operations and amphibious landing operations. The ROK Navy includes the Republic of Korea Marine Corps, which is a quasi-autonomous organization...

. She was built by Daewoo Shipbuilding & Marine Engineering

Daewoo Shipbuilding & Marine Engineering

Daewoo Shipbuilding & Marine Engineering Co., Ltd ' is the second largest shipbuilder in the world and one of the "Big Three" shipbuilders of South Korea.On 21 February 2011, the A. P...

 and was launched on 22 May 2002, entering service on 2 December 2003. She is about 150 metres (492.1 ft) long, 17 metres (55.8 ft) wide and displaces

Displacement (ship)

A ship's displacement is its weight at any given time, generally expressed in metric tons or long tons. The term is often used to mean the ship's weight when it is loaded to its maximum capacity. A number of synonymous terms exist for this maximum weight, such as loaded displacement, full load...

 between 4,800 and 5,000 tons. Her propulsion unit is a CODOG

Combined diesel or gas

Combined diesel or gas ' is a type of propulsion system for ships that need a maximum speed that is considerably faster than their cruise speed, particularly warships like modern frigates or corvettes....

 unit, capable of propelling her at speeds of up to 30 knots (36.5 mph). She has a crew complement of 200. Her armament consists of a 32-cell VLS

Vertical Launching System

A vertical launching system is a system for holding and firing missiles on surface ships and submarines used by many navies around the world. Each VLS system consists of a number of cells, which can hold one or more missiles ready for firing...

 (with space to install a 64-cell system), a Mk 45 gun, a RAM missile

RIM-116 Rolling Airframe Missile

The RIM-116 Rolling Airframe Missile is a small, lightweight, infrared homing surface-to-air missile in use by the American, German, South Korean, Greek, Turkish, Saudi and Egyptian navies. It was intended originally and used primarily as a point-defense weapon against anti-ship cruise missiles...

, a Goalkeeper CIWS

Goalkeeper CIWS

Goalkeeper is a Dutch close-in weapon system introduced in 1979 and in use , which primarily defends ships against incoming missiles and ballistic shells. This system consists of an autocannon and an advanced radar which in typically six seconds detects incoming fire, determines its trajectory,...

 and eight Harpoon anti-ship missile

Anti-ship missile

Anti-ship missiles are guided missiles that are designed for use against ships and large boats. Most anti-ship missiles are of the sea-skimming type, many use a combination of inertial guidance and radar homing...

s. Other systems include an AN/SPS-49

AN/SPS-49

The AN/SPS-49 is a United States Navy two-dimensional, long range air search radar built by Raytheon that can provide contact bearing and range. It is a primary air-search radar for numerous ships in the U.S...

 radar, an MW08

MW08

Thales Naval Nederland MW08 is a G-band 3D target indication radar, part of the 3D multibeam 'SMART' family which includes E/F band SMART-S/SMART-S Mk2 and D band SMART-L.MW08 transmits six 2 by 12 degree stacked beams up to 70 degrees for height finding and is capable of fully...

 radar, and a DSQ-23 sonar

Sonar

Sonar is a technique that uses sound propagation to navigate, communicate with or detect other vessels...

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