The ''Ulsan''-class frigate (
Hangul
The Korean alphabet, known as Hangul, . Hangul may also be written as following South Korea's standard Romanization. ( ) in South Korea and Chosŏn'gŭl in North Korea, is the modern official writing system for the Korean language. The ...
: 울산급 호위함,
Hanja
Hanja (Hangul: ; Hanja: , ), alternatively known as Hancha, are Chinese characters () used in the writing of Korean. Hanja was used as early as the Gojoseon period, the first ever Korean kingdom.
(, ) refers to Sino-Korean vocabulary, ...
: 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
The Republic of Korea Navy (ROKN; ko, 대한민국 해군), also known as the ROK Navy or South Korean Navy, is the naval warfare service branch of the South Korean armed forces, responsible for naval and amphibious operations. The ROK Navy ...
under the 1st Yulgok Project (1974–1986) for the
Republic of Korea Armed Forces
The Republic of Korea Armed Forces (), also known as the ROK Armed Forces, are the armed forces of South Korea. The ROK Armed Forces is one of the largest and most powerful standing armed forces in the world with a reported personnel strength of ...
.
Design
The ''Ulsan'' class is a light frigate built by
Hyundai Heavy Industries and
Daewoo Shipbuilding & Marine Engineering
Daewoo Shipbuilding & Marine Engineering Co., Ltd ( ko, 대우조선해양; abbreviated DSME) is one of the "Big Three" shipbuilders of South Korea, along with Hyundai and Samsung.
History
On 21 February 2011, the A. P. Moller-Maersk Group (M ...
. The frigates are in length with a top speed of and range of at .
Ships in class
Foreign variant
Bangladesh Navy

In June 2001, the
Bangladesh Navy
The Bangladesh Navy ( bn, বাংলাদেশ নৌবাহিনী, Bangladesh Nou Bahini) is the naval warfare branch of the Bangladesh Armed Forces, responsible for Bangladesh's of maritime territorial area, and the defence of impo ...
commissioned a frigate based on the ''Ulsan''-class frigate but the design was heavily modified. She is the most modern ship in her fleet.
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See also
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List of active Republic of Korea Navy ships
The Republic of Korea Navy has about 160 ships in commission (a total displacement of about 232,285 tonnes).
The vessels are categorized into four levels. A first-rate ship (''Sohn Wonyil-''class SS, DDG, DDH, LPH, MLS, and AOE) is commande ...
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List of naval ship classes in service
The list of naval ship classes in service includes all combatant surface classes in service currently with navies or armed forces and auxiliaries in the world. Ships are grouped by type, and listed alphabetically within.
For other vessels, see ...
References
{{Republic of Korea Navy ships
Frigate classes