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 and ; 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.

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