The Ulsan-class frigate 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.
The Ulsan class is a light frigate built by Hyundai Heavy Industries and Daewoo Shipbuilding & Marine Engineering. The frigates are 103.7m (340.2feet) in length with a top speed of 34kn and range of 8000nmi at .
| Name | Hull number | Builder | Launched | Delivered | Commissioned | Decommissioned | Operator | Status |
|---|---|---|---|---|---|---|---|---|
| Batch I | ||||||||
| FF-951 | Hyundai Heavy Industries | 8 April 1980[1] | 30 December 1980 | 1 January 1981 | 30 December 2014 | Republic of Korea Navy | Decommissioned. Used as a museum ship in Ulsan.[2] | |
| FF-952 | Hyundai Heavy Industries | 24 April 1984[3] | 15 December 1984 | 18 December 1984 | 31 December 2015 | Republic of Korea Navy | Decommissioned. Used as a museum ship in Seoul.[4] | |
| FF-953 | Korea Shipbuilding Corporation | 14 September 1984[5] | 30 June 1985 | 1 July 1985[6] | 27 December 2017 | Republic of Korea Navy | Used by the Naval Battle Training Group Eight as reserve & training ship. Offered but refused by the Argentine Navy. | |
| FF-955 | Korea Tacoma Shipyard | 26 October 1984 | 30 July 1985 | 7 August 1985 | 24 December 2019 | Republic of Korea Navy | Museum ship on Gangwha Island | |
| Batch II | ||||||||
| FF-956 | Daewoo Shipbuilding | 23 January 1986 | 1 August 1986 | 24 December 2019 | Republic of Korea Navy | Used by the Naval Battle Training Group Eight as reserve & training ship. | ||
| Batch III | ||||||||
| FF-957 | Hyundai Heavy Industries | 19 April 1988 | 26 October 1989 | 30 December 2022 | Republic of Korea Navy | Decommissioned, held in Reserve as possible training ship or for Foreign Sales/Donation | ||
| FF-958 | Daewoo Shipbuilding & Marine Engineering | 3 May 1988 | 2 December 1989 | 30 December 2022 | Republic of Korea Navy | Decommissioned, held in Reserve as possible training ship or for Foreign Sales/Donation | ||
| FF-959 | Hyundai Heavy Industries | 20 February 1992 | 2 November 1992 | Republic of Korea Navy | Active | |||
| FF-961 | Daewoo Shipbuilding & Marine Engineering | 20 March 1992 | 2 December 1992 | Republic of Korea Navy | Active | |||
In June 2001, the Bangladesh Navy commissioned a frigate based on the Ulsan-class frigate but the design was heavily modified. She is the most modern ship in her fleet.