{{short description|Cheonghaejin-class submarine rescue ship}} {{Infobox ship |section1={{Infobox ship/image | image =2014.4 세월호 구조 작전 (13979529595).jpg | image_caption = ROKS ''Cheonghaejin'' on 21 April 2014 }}
|section2={{Infobox ship/career | hide_header = | country = South Korea | flag = {{shipboxflag|South Korea|naval}} | name = *''Cheonghaejin'' *(청해진) | namesake = Cheonghaejin | ordered = | awarded = | builder = Hanjin | original_cost = | yard_number = | way_number = | laid_down = | launched = 18 October 1995 | sponsor = | christened = | completed = | acquired = | commissioned = 2 December 1996 | recommissioned = | decommissioned = | maiden_voyage = | in_service = | out_of_service = | renamed = | reclassified = | refit = | struck = | reinstated = | homeport = | identification = *Pennant number: ASR-21 | nickname = | honors = | captured = | fate = | status = Active | notes = }}
|section3={{Infobox ship/characteristics | hide_header = | header_caption = | class = ''Cheonghaejin''-class submarine rescue ship | displacement = *{{convert|3200|t|LT|0}} light *{{convert|4300|t|LT|0}} full load | length = {{convert|102.8|m|ftin|abbr=on}} | beam = {{convert|16.4|m|ftin|abbr=on}} | draft = {{convert|4.6|m|ftin|abbr=on}} | depth = | propulsion = | speed = {{convert|18|kn|lk=in}} | range = | endurance = | complement = 140 crew | time_to_activate = | sensors = *AN/SPS-64V surface-search radar *Sonar | EW = | armament = *1 × M61 Vulcan *6 × M2 Browning machine gun | armor = | notes = | aircraft = 1 × SH-60 Seahawk | aircraft_facilities = Helipad }} }} '''ROKS ''Cheonghaejin'' (ASR-21)''' is the only ship of the ''Cheonghaejin''-class submarine rescue ship in the Republic of Korea Navy. She is named after the military headquarter, Cheonghaejin.<ref>{{Cite web|date=2012-03-28|title='457m 잠수 가능' 구조정 탑재, 청해진함은…|url=https://m.segye.com/view/20120328022710|access-date=2021-07-10|website='457m 잠수 가능' 구조정 탑재, 청해진함은…세계일보|language=ko}}</ref>
== Design == {{Main|Cheonghaejin-class submarine rescue ship}} Her operations include rescuing trapped sailors in submarines, naval operation support for submarines, underwater research and mapping support, and recovery of sunk vessels. It is equipped with a deep submergence rescue vehicle (DSRV) that operates up to {{convert|500|m|ft}}, and a rescue chamber that holds up to nine people.
Once all nine ''Son Wonil''-class submarines are delivered to the Republic of Korea Navy, another ASR ship of the same class is planned to be built.
== Construction and career == ROKS ''Cheonghaejin'' was launched on 18 October 1995 by Daewoo Shipbuilding and commissioned on 2 December 1996.<ref>{{Cite web|title=Chunghaejin [Cheong-Hae-Jin] ASR|url=https://www.globalsecurity.org/military/world/rok/asr-21.htm|access-date=2021-07-10|website=www.globalsecurity.org}}</ref>
She salvaged a North Korean {{sclass2|Yugo|submarine|0}} submarine in 1998.
She salvaged {{sclass2|Chamsuri|patrol boat}} #357 that was sunk during the naval clash in 2002 with North Korea.
== Gallery == <gallery mode="nolines"> File:US Navy 100406-N-9123L-004 U.S. and Republic of Korea sailors conduct a medical evacuation training exercise in the Yellow Sea.jpg|ROKS ''Gwangyang'' on 6 April 2010 File:US Navy 100406-N-9123L-010 A diver is recovered by helicopter during a medical evacuation training exercise involving the U.S. and Republic of Korea navies.jpg File:Yellow Sea activity DVIDS266875.jpg </gallery>
==References== {{reflist}}
{{Republic of Korea Navy ships}}
{{DEFAULTSORT:Cheonghaejin}} Category:1995 ships Category:Ships built by Hanjin Heavy Industries Category:Auxiliary ships of the Republic of Korea Navy