Ulsan-class frigate

	ROKS Gyeongbuk near San Diego, California
Class overview
Name	Ulsan class
Builders	Hyundai Heavy Industries; Korea Shipbuilding Corporation; Korea Tacoma Shipyard; Daewoo Shipyard;
Operators	Republic of Korea Navy; Bangladesh Navy;
Succeeded by	Incheon class
Completed	9
Active	2
Retired	5
Preserved	3
General characteristics
Type	Frigate
Displacement	1,500 t (empty); 2,180 t (full, Batch I); 2,215 t (full, Batch II–III);
Length	103.7 m (340 ft 3 in)
Beam	12.5 m (41 ft 0 in)
Draught	3.8 m (12 ft 6 in)
Propulsion	CODOG; 2 × GE LM2500 gas turbine engine; 2 × MTU 12V 956 TB82 diesel engine;
Speed	35 knots (65 km/h; 40 mph)
Range	8,000 nmi (15,000 km; 9,200 mi) at 16 knots (30 km/h; 18 mph)
Complement	186 (16 officers)
Sensors &; processing systems	Fire control system:; Signaal SEWACO ZK (Batch I–II); Samsung/Ferranti WSA-423 (Batch III); AN/SPS-10C navigation radar; ST-1802 fire control radar; Signaal PHS-32 hull-mounted sonar; TB-261K towed sonar;
Electronic warfare; & decoys	ULQ-11K ESM/ECM suite; 2 × Mark 36 SRBOC 6-tubed chaff/flare launcher; 2 × 15-tube SLQ-261 torpedo acoustic countermeasures;
Armament	Primary gun:; 2 × OTO Melara 76 mm/62 cannon; Secondary gun:; 4 × Emerson EMERLEC 30 twin Oerlikon 30 mm/75 KCB cannon (Batch I); 3 × Breda DARDO CIWS twin Bofors 40 mm/70 cannon (Batch II–III); Anti-ship:; 2 × 4 RGM-84C Harpoon SSM; Anti-submarine:; 2 × triple Mark 32 SVTT loaded with; Mark 46 ASW torpedo, or; K745 Blue Shark ASW torpedo (after 2006); 12 × Mk 9 or KMk 9 depth charge;

The Ulsan-class frigate (Korean: 울산급 호위함; Hanja: 蔚山級護衛艦) is the high-end complement of the high-low mix domestic naval construction plan of the Republic of Korea Navy under the 1st Yulgok Project (1974–1986) for the Republic of Korea Armed Forces.

Class overview
ROKS Gyeongbuk near San Diego, California
Name	Ulsan class
Builders	Hyundai Heavy Industries Korea Shipbuilding Corporation Korea Tacoma Shipyard Daewoo Shipyard
Operators	Republic of Korea Navy Bangladesh Navy
Succeeded by	Incheon class
Completed	9
Active	2
Retired	5
Preserved	3
General characteristics
Type	Frigate
Displacement	1,500 t (empty) 2,180 t (full, Batch I) 2,215 t (full, Batch II–III)
Length	103.7 m (340 ft 3 in)
Beam	12.5 m (41 ft 0 in)
Draught	3.8 m (12 ft 6 in)
Propulsion	CODOG 2 × GE LM2500 gas turbine engine 2 × MTU 12V 956 TB82 diesel engine
Speed	35 knots (65 km/h; 40 mph)
Range	8,000 nmi (15,000 km; 9,200 mi) at 16 knots (30 km/h; 18 mph)
Complement	186 (16 officers)
Sensors & processing systems	Fire control system: Signaal SEWACO ZK (Batch I–II) Samsung/Ferranti WSA-423 (Batch III) AN/SPS-10C navigation radar ST-1802 fire control radar Signaal PHS-32 hull-mounted sonar TB-261K towed sonar
Electronic warfare & decoys	ULQ-11K ESM/ECM suite 2 × Mark 36 SRBOC 6-tubed chaff/flare launcher 2 × 15-tube SLQ-261 torpedo acoustic countermeasures
Armament	Primary gun: 2 × OTO Melara 76 mm/62 cannon Secondary gun: 4 × Emerson EMERLEC 30 twin Oerlikon 30 mm/75 KCB cannon (Batch I) 3 × Breda DARDO CIWS twin Bofors 40 mm/70 cannon (Batch II–III) Anti-ship: 2 × 4 RGM-84C Harpoon SSM Anti-submarine: 2 × triple Mark 32 SVTT loaded with Mark 46 ASW torpedo, or K745 Blue Shark ASW torpedo (after 2006) 12 × Mk 9 or KMk 9 depth charge