Daegu-class frigate

Class overview
Name	Daegu class
Builders	Daewoo Shipbuilding & Marine Engineering Hyundai Heavy Industries
Operators	Republic of Korea Navy
Preceded by	Template:Sclass-
Succeeded by	FFG-III
In commission	2018–present
Planned	8
Building	1
Completed	3
Active	1
General characteristics
Type	Guided missile frigate
Displacement	2,800 t (empty), 3,592t (full load)
Length	122 m (400 ft)
Beam	14 m (46 ft)
Draft	4 m (13 ft)
Propulsion	Combined diesel-electric or gas 1 × Rolls-Royce MT30 gas turbine 4 × MTU 12V 4000 M53B diesel engine 2 × Leonardo DRS electric motors
Speed	30 knots (56 km/h; 35 mph) (max) 18 knots (33 km/h; 21 mph) (cruising)
Range	4,500 nautical miles (8,000 km)
Complement	140
Sensors and processing systems	SPS-550K air search 3D radar SPG-540K fire control radar SQS-240K hull-mounted sonar SQR-250K towed array sonar system SAQ-540K EOTS Hanwha Systems SAQ-600K IRSTs Naval Shield Integrated Combat Management System
Electronic warfare & decoys	LIG Nex1 SLQ-200(V)K Sonata electronic warfare suite SLQ-261K torpedo acoustic counter measures MASS decoy launchers
Armament	1 × 5 inch Mk-45 Mod 4 (127mm/L62) naval gun 1 × 20 mm Phalanx CIWS 2 × triple torpedo tubes for K745 LW Blue Shark torpedoes Missiles: 16 cell K-VLS Haegung K-SAAM (4 per cell) Haeryong Tactical Land Attack Missiles (vertical launch) Hong Sang Eo anti-submarine missiles 2 × 4 SSM-700K Haeseong anti-ship missiles
Aircraft carried	Super Lynx or AW159
Aviation facilities	Flight deck and enclosed hangar for up to one medium-lift helicopters

The Daegu-class frigate (Hangul: 대구급 호위함, Hanja: 大邱級護衛艦) is a class of guided missile frigates of the Republic of Korea Navy (ROKN). The Daegu-class is based on the preceding Template:Sclass-, and has otherwise been referred to an Incheon-class batch II, or FFG-II. Eight Daegu-class ships are planned, with the final goal of 20-22 frigates (of all types) in the ROKN. The Daegu-class frigates are to be built by Daewoo Shipbuilding & Marine Engineering (DSME) and Hyundai Heavy Industries.

Features

See also: Incheon-class frigate

The Daegu-class is an improved variant of the Template:Sclass-. Modifications to the Incheon-class include a TB-250K towed array sonar system and a 16-cell Korean Vertical Launching System (K-VLS) that is able to deploy the K-SAAM, Hong Sang Eo anti-submarine missile, and Haeryong tactical land attack cruise missiles.

The hull design is generally based on the one of the Incheon-class. However, as a part of weapon system modifications, the superstructure has been significantly changed. The hangar and a hellicopter deck on stern has been enlarged to support the operation of a 10-ton helicopter.

The Daegu-class is the first Korean warship to be equipped with a combined diesel-electric or gas (CODLOG) propulsion system. The propulsion system of the ROKN ships have a gas turbine direct drive and four high speed diesel generators driving two Leonardo DRS permanent magnet electric motors. The Rolls Royce MT30 turbine engine replaces the twin gas turbine layout of the Incheon-class frigates.

Ships in the class

Name	Pennant number	Builder	Launched	Commissioned	Decommissioned	Status
ROKS Daegu	FFG-818	DSME	2 June 2016	6 March 2018		Active
ROKS Gyeongnam	FFG-819	DSME	21 June 2019			Launched
ROKS Seoul	FFG-821	Hyundai Heavy Industries	11 November 2019			Launched
ROKS Donghae	FFG-822	Hyundai Heavy Industries	29 April 2020			Launched
	FFG-823	DSME				Contract awarded
	FFG-825	DSME				Contract awarded
	FFG-826	Hyundai Heavy Industries				Contract awarded
	FFG-827	Hyundai Heavy Industries				Contract awarded