DDH-975 is the lead ship of Chungmugong Yi Sun-sin-class destroyer, she is named after the Korean Admiral Yi Sun-Sin, a Korean naval commander.

ROKS Chungmugong Yi Sun-sin review on Dung Tran Blog channel

Introduce

The Republic of Korea Navy is one of the strongest forces in Asia with modern equipment that is not inferior to China, Japan or India. The Republic of Korea Navy was established in November 1945, this is a branch of the Republic of Korea Armed Forces responsible for naval operations and sea landing. The main goal since the Korean Navy was born today to deal with Korea.

In recent years, the increasing tension in maritime claims among countries in the region has made Korea have a reason to keep a modern and positive navy. Most of their warships ranked top in the world in terms of quality and fire power. DDH-975 Chungmugong Yi Sun-sin is such a case, this is the second most powerful destroyer class of the South Korean Navy, second only to the Sejong the Great-class destroyer.

DDH-975 is the lead ship of Chungmugong Yi Sun-sin-class destroyer, she is named after the Korean Admiral Yi Sun-Sin, a Korean naval commander famed for his victories against the Japanese navy during the Imjin war in the Joseon Dynasty. Built by Hyundai Heavy and Daewoo Shipbuilding & marine Engineering, she was launched in May 2002 and commissioned in December 2003.

Chungmugong Yi Sun-sin-class destroyers also known as DDH-II, were the second class of ships to be produced in the Republic of Korea Navy’s destroyer mass-production program named Korean Destroyer eXperimental, which paved the way for the navy to become a blue-water navy.

Design

Chungmugong Yi Sun-sin and her sisters in this class are a 4,800 tons ships under standard load and near 5,000 tons under full load, with a hull design licensed from Germany’s IABG. The hull incorporates stealth technology for reduced infrared and radar cross section.  The ship has high survivability and can protect the crew from biochemical attacks.

The overall design of the ship includes slab-sided frontal and aft superstructures. DDH-975 is about 150 metres long, 17 metres wide and a draft of 5m. Her main mast is enclosed and her smoke funnel well-integrated into her profile.

The ship has two superstructures, the main mast is behind the first superstructure and is clearly identified by its row of large windows. It containing the sensors, communications, and processing systems. The enclosed smoke funnel resides amidships with a pair of anti-ship missile quad launchers.

Next is the second superstructure containing air search and fire control systems along its roof as well as additional defensive weaponry. The DDH-975 arranges a helicopter deck and a hangar in the stern with full service for two Super Lynx helicopters. She can complement a crew of 200 members.

propulsion

Chungmugong Yi Sun-sin’s propulsion unit is a Combined Diesel Or Gas unit, integrating two LM2500 gas turbines and two MTU diesel engines. This system provides a total power output of 64,960 horsepower, capable of propelling her at speeds of up to 30 knots and a cruising range of 4,000 nautical miles at 18 knots.

Armament

The ship has a 32-cell Mk 41 vertical launch system for SM-2 Block IIIB surface-to-air missiles, she can upgrade to a 64 cell system with options such as Hong-Sang-Eo rocket-based torpedo or Hyunmoo III Ship-to-shore cruise missiles. These cells are located right in front of the ship’s superstructure block.

The main gun fitted forward of these cells is a 127mm Mk 45 Mod 4 cannon with unobstructed views over the bow and to either side of the forward hull. It has a rate of fire of 16 to 20 rounds a minute and a maximum range of 24km.

The close-in air defence is provided by a 30mm Goalkeeper close-in weapon system, a RIM-116 Rolling Airframe Missile launcher provides close-in defense against inbound aerial threats.

Chungmugong Yi Sunshin is fitted with two triple 324mm anti-submarine torpedo tubes and vertical launchers for firing torpedoes and Harpoon anti-submarine missiles, these launchers were placed at the midships.

Electronic systems

The electronics suite includes one Raytheon AN/SPS-49 2D long-range radar, one Thales Nederland MW08 target indication 3D radar, two Thales Nederland STIR240 fire-control radars with OT-134A Continuous Wave Illumination transmitters.

Electronic countermeasures are based on SONATA SLQ-200 electronic warfare system developed by LIG Nex1. There are four chaff radar countermeasure launchers to help disrupt tracking threats to the ship. The onboard early warning system helps the ship detects the radio wave signals emitted by the enemy radars and missiles and simultaneously transmits jamming signals to defeat multiple threats for enhancing the survivability of the ship.

Chungmugong Yi Sunshin is deployed in reconnaissance and surveillance, anti-submarine, air and surface warfare operations. The destroyer conducts strikes on the strategic and tactical targets and can also serve as a main warship of a manoeuvre warfare group.

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