Daegu-class frigate

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 Incheon-class frigate, 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.[1] The Daegu-class frigates are to be built by Daewoo Shipbuilding & Marine Engineering (DSME) and Hyundai Heavy Industries.

Class overview
Name: Daegu class
Builders:
Operators:  Republic of Korea Navy
Preceded by: Incheon-class frigate
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:
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:
Electronic warfare
& decoys:
  • LIG Nex1 SLQ-200(V)K Sonata electronic warfare suite
  • SLQ-261K torpedo acoustic counter measures
  • MASS decoy launchers
Armament:
Aircraft carried: Super Lynx or AW159
Aviation facilities: Flight deck and enclosed hangar for up to one medium-lift helicopters

Features

The Daegu-class is an improved variant of the Incheon-class frigate. 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.[2]

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.[3][4]

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.[1]

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[5] 21 June 2019[6] Launched
ROKS Seoul FFG-821 Hyundai Heavy Industries 11 November 2019 Launched
FFG-822 Hyundai Heavy Industries Keel laid
FFG-823 DSME Contract awarded
FFG-825 DSME Contract awarded
FFG-826 Hyundai Heavy Industries Contract awarded
FFG-827 Hyundai Heavy Industries Contract awarded

References

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