ROKS Yulgok Yi I (DDG-992)

History

ROKS Yulgok Yi I (DDG-992) is the second destroyer of the Sejong the Great-class in the Republic of Korea Navy, part of a six-ship plan to modernize the navy's surface fleet. Launched in 2008 and commissioned in 2010, the 7,650-ton warship features a stealth design with a plate side hull, single deck guns, turrets, and a vertical launch system. Its purpose includes anti-submarine warfare and search and rescue missions, supported by Navy helicopters.

Named after philosopher Yulgok Yi I, the destroyer incorporates the Aegis Combat System and AN/SPY-1D radar antennae. As part of the Korean Destroyer eXperimental program, it contributes to enhancing the Republic of Korea Navy's maritime defense capabilities. Weighing 8,500 tons standard and 11,000 tons full load, these destroyers, considered among the largest in the South Korean Navy, participated in the Rim of the Pacific Exercise (RIMPAC) in 2012 and 2018.

Constructed by Daewoo Shipbuilding & Marine Engineering, ROKS Yulgok Yi I represents a significant phase in the South Korean navy's shipbuilding program, geared toward defending maritime areas and establishing a blue-water navy. The ship's participation in RIMPAC reflects the Republic of Korea Navy's commitment to enhancing interoperability among Pacific Rim armed forces for regional stability.

Specification

Basics

Builder: Daewoo Shipbuilding & Marine Engineering Co., Ltd. (DSME) Korea

Launched: 14 November 2008

Commissioned: 31 August 2010

Pennant number: DDG-992

Status: Active

Class and type: Sejong the Great-class destroyer

Complement: 300 crew

Displacement

• 8,500 tons standard displacement

• 11,000 tons full load

Dimensions and Weight

Length: 166 m (544 ft 7 in)

Beam: 21.4 m (70 ft 3 in)

Draft: 6.25 m (20 ft 6 in)

Propulsion

• 4 × General Electric LM2500 COGAG;

• 2 × shafts;

• 100,000 shp (75 MW) produced power

Speed: exceeds 30 knots (56 km/h; 35 mph)

Range: 5,500 nautical miles (10,200 km; 6,300 mi)

Endurance: 30 days

Sensors and processing systems

• AN/SPY-1D(V) multi-function radar

• AN/SPG-62 fire control radar

• DSQS-21BZ-M hull mounted sonar

• SQR-220K towed array sonar system

• Sagem Infrared Search & Track (IRST) system

Electronic warfare and decoys

LIG Nex1 SLQ-200K Sonata electronic warfare suite

Armament

• 1 × 5 inch (127 mm)/L62 caliber Mk 45 Mod 4 naval gun

• 1 × 30 mm Goalkeeper CIWS

• 1 × RAM Block 1 CIWS

• 16 × SSM-700K Haeseong Anti-ship Missiles

• 2 × triple torpedo tubes for K745 Blue Shark torpedo

• 80-cell Mk 41 VLS for SM-2 Block IIIB/IV

• 48-cell K-VLS for: K-ASROC Red Shark; Hyunmoo III land attack cruise missiles.

Aircraft carried

2 × Super Lynx or SH-60 Seahawk

Aviation facilities

Hangar and helipad