{{Short description|2011 Krabi-class patrol vessel}} {{Infobox ship |section1={{Infobox ship/image | image = RAN-IFR 2013 D3 43.JPG | image_caption = HTMS ''Krabi'' moored in Sydney Harbour, October 2013 }}
|section2={{Infobox ship/career | hide_header = | country = Thailand | flag = 60px | name = HTMS ''Krabi'' | namesake = Krabi Province | ordered = | awarded = | builder = *Mahidol Adulyadej Naval Dockyard *BAE Systems Surface Ships | laid_down = | launched = 3 December 2011 | christened = | acquired = | commissioned = 26 August 2013 | recommissioned = | decommissioned = | in_service = | out_of_service = | renamed = | reclassified = | refit = | captured = | struck = | reinstated = | identification = *{{MMSI Number|567443000}} *Callsign: HSNK | fate = | status = Active | homeport = }}
|section3={{Infobox ship/characteristics | hide_header = | header_caption = | class = Modified {{sclass2|River|patrol vessel|1}} | tonnage = | displacement = {{convert|2,000|t|abbr=on}}<ref name="BAEOPV">{{cite web|title=Offshore Patrol Vessels|url=http://www.baesystems.com/en/product/offshore-patrol-vessels|website=www.baesystems.com|publisher=BAE Systems|accessdate=2 August 2016}}</ref> | length = {{convert|90.5|m|ftin|abbr=on}}<ref name="BAEOPV"/> | beam = {{convert|13.5|m|ftin|abbr=on}}<ref name="BAEOPV"/> | draught = | draft = | propulsion = *2 × MAN 16V28/33D diesel engines, 14,700kW/10,950HP, 2 shafts *2 × controllable-pitch propellers | speed = {{convert|25|kn|km/h|abbr=on}}<ref name="BAEOPV"/> | range = {{convert|5,500|nmi|km|abbr=on}}<ref name="BAEOPV"/> | endurance = 35 days<ref name="BAEOPV"/> | boats = | capacity = | troops = | complement = | time_to_activate = | sensors = *Thales Variant surveillance radar *Thales Lirod Mk2 fire control radar | armament = *1 × Oto Melara 76 mm gun *2 × 30mm MSI guns *2 × Machine guns | aircraft = One H145M helicopter<ref name="janes.com">{{cite web|url=http://www.janes.com/article/60007/rtn-to-deploy-h145m-helicopters-from-pattani-modified-river-class-patrol-vessels|title=RTN to deploy H145M helicopters from Pattani, modified River-class patrol vessels - IHS Jane's 360|work=janes.com|accessdate=7 August 2016}}</ref> | aircraft_facilities = 20 meter flight deck | notes = }} }}
'''HTMS ''Krabi''''' (OPV-551) is an offshore patrol vessel (OPV) of the Royal Thai Navy. She is a modified {{sclass2|River|patrol vessel|1}}, and was built by Mahidol Adulyadej Naval Dockyard, with design and technology transfer support from BAE Systems Surface Ships.<ref name="baird">{{cite web|title=Thailand to build offshore patrol vessels|url=http://bairdmaritime.com/index.php?option=com_content&view=article&id=3086:thailand-to-build-offshore-patrol-vessels&catid=114:workboats&Itemid=209|publisher=Baird Maritime|accessdate=7 December 2011|archiveurl=https://web.archive.org/web/20120426035102/http://bairdmaritime.com/index.php?option=com_content&view=article&id=3086:thailand-to-build-offshore-patrol-vessels&catid=114:workboats&Itemid=209|archivedate=26 April 2012|url-status=live|date=25 August 2009}}</ref> Additional construction took place at the Royal Thai Navy Mahidol Dockyard in Sattahip.<ref name="taf">{{cite web|title=เรือหลวงกระบี่ เรือ OPV ลำใหม่ ฝีมือคนไทย|url=http://www.thaiarmedforce.com/taf-gallery/41-rtn-photos/404-tafgallery55.html|publisher=Thai Armed Force|accessdate=22 December 2011|archiveurl=https://web.archive.org/web/20120424115228/http://www.thaiarmedforce.com/taf-gallery/41-rtn-photos/404-tafgallery55.html|archivedate=24 April 2012|url-status=dead|date=30 November 2011}}</ref>
== Construction == The contract for the construction of ''Krabi'' was signed in June 2009,<ref name="baird"/> and construction began in August 2010.<ref name="st">{{cite web|title=Royal Thai Navy Launches Offshore Patrol Vessel Designed by BAE Systems|url=http://shipbuildingtribune.com/2011/12/06/royal-thai-navy-launches-offshore-patrol-vessel-designed-by-bae-systems/|publisher=Shipbuilding Tribune|accessdate=7 December 2011|archiveurl=https://web.archive.org/web/20120515124327/http://shipbuildingtribune.com/2011/12/06/royal-thai-navy-launches-offshore-patrol-vessel-designed-by-bae-systems/|archivedate=15 May 2012|url-status=dead|date=6 December 2011}}</ref> ''Krabi'' was launched on 3 December 2011 in a ceremony attended by Princess Maha Chakri Sirindhorn.<ref name="st"/> After launch, she began outfitting, and entered service in 2013.<ref name="taf"/><ref name="st"/> The Thai Navy plans to use ''Krabi'' to patrol Thailand's Economic Exclusion Zone (EEZ), as well as for fishery and natural resource protection and disaster relief.<ref name="st"/>
''Krabi'' is 91 meters in length, and carries an Oto Melara 76 mm main gun and two MSI 30mm secondary guns for primary defense, as well as machine guns.<ref name="baird"/><ref name="taf"/> It is able to operate an AgustaWestland AW139 helicopter flying from a {{convert|20|m}} flight deck.<ref name="baird"/> Her top speed is expected to be over {{convert|25|kn}},<ref name="taf"/> and she is powered by two MAN 16v 28/33D diesel engines, making about {{convert|7.2|MW|hp}}.<ref name="baird"/> She is equipped with a Thales Variant surveillance radar, a Thales Lirod Mk2 fire control radar and the Thales Tacticos combat management system.
== Operational history == In October 2013 ''Krabi'' participated in the International Fleet Review 2013 in Sydney, Australia. In May 2016 the Royal Thai Navy said it is planning to deploy its new H145M helicopters from HTMS Krabi in service with 202 Squadron.<ref name="janes.com"/>
''HTMS Krabi'' participated at the International Fleet Review 2026 held at Visakapatanam in India in February 2026.<ref>{{Cite web |last=Fb |last2=Tw |last3=Linkdin |last4=Whatsapp |last5=Us |first5=GNFollow |title=India welcomes Thai, Australian, Sri Lankan ships for IFR, MILAN 2026 |url=https://newsable.asianetnews.com/world/india-welcomes-thai-australian-sri-lankan-ships-for-ifr-milan-2026-articleshow-47f6gxx |access-date=2026-02-16 |website=Asianet Newsable |language=en}}</ref><ref>{{Cite news |date=2026-02-16 |title=Thailand, Australia, Sri Lanka mark their naval presence as India gets ready to host International Fleet Review, MILAN Exercise |url=https://economictimes.indiatimes.com/news/defence/thailand-australia-sri-lanka-mark-their-naval-presence-as-india-gets-ready-to-host-international-fleet-review-milan-exercise/articleshow/128404447.cms |access-date=2026-02-16 |work=The Economic Times |issn=0013-0389}}</ref>
==See also== * List of naval ship classes in service * River-class patrol vessel (The HTMS Krabi is a modified version of this class)
==References== {{reflist}}
{{commons category}} {{River class opv}}
{{DEFAULTSORT:Krabi}} Category:2011 ships Category:Ships built in Thailand Category:Krabi-class patrol boats of the Royal Thai Navy