{{Short description|Type of high-speed, wave-piercing craft}} {{Use dmy dates|date=May 2026}} A '''Very Slender Vessel''' (VSV) is a high-speed, [[Wave-piercing hull|wave-piercing craft]]. It is designed to give a comfortable ride over long, high-speed transits in high seas.<ref name=GSO>{{cite web | title = Very Slender Vessel | publisher = www.globalsecurity.org | url = http://www.globalsecurity.org/military/systems/ship/vsv.htm | date = 7 July 2011}}</ref>
Normal boats travelling at high speed in rough seas can produce a very uncomfortable ride with [[g-force]] as high as 20g. Wave piercing vessels avoid this by going through waves instead of over them, at speeds that can exceed {{convert|60|kn|km/h}}.<ref name="GSO" /><ref>{{cite web |last1=Julian |first1=Alex |title=MarySlim yacht makes debut |url=https://www.topspeed.com/boats/boat-news/maryslim-yacht-makes-debut-ar31131.html |website=topspeed.com |accessdate=8 June 2018}}</ref>
==Military==
===North Korea===
It was revealed in 2015 that North Korea had under development a VSV attack boat, reported to be deployed on the western side of the Korean peninsula.<ref>{{Cite news |title=North Korea deploys new generation of fast warships |last=Ryall |first=Julian |newspaper=The Telegraph |date=28 May 2015 |url= https://www.telegraph.co.uk/news/worldnews/asia/japan/11634933/North-Korea-deploys-new-generation-of-fast-warships.html}}</ref> It was first detected on trials by satellite surveillance late in 2014. The first images of the completed vessel were released by North Korean media in July 2018, after a visit to the [[Chongjin]] shipyard by leader [[Kim Jong-un]].<ref>{{Cite news |title=First images of newly-built North Korean warship published by state media |last=Macdonald |first=Hamish |website=North Korea News |date=19 Jul 2018 |url= https://www.nknews.org/2018/07/first-images-of-newly-built-north-korean-warship-published-by-state-media/}}</ref>
===Singapore===
The [[Singapore Army]] operates VSV craft in [[special forces]] units. It was speculated in 2018 that they were to be replaced by new craft.<ref>{{cite web |last1=Wong |first1=Kelvin |title=Update: Singapore's new stealth combatant craft breaks cover |url=https://www.janes.com/article/85286/update-singapore-s-new-stealth-combatant-craft-breaks-cover |website=IHS Jane's 360 |date=18 December 2018 |archiveurl=https://web.archive.org/web/20181218175439/https://www.janes.com/article/85286/update-singapore-s-new-stealth-combatant-craft-breaks-cover |archive-date=18 December 2018 |location=Singapore |url-status=dead}}</ref>
===United Kingdom===
VSV craft such as the [[Royal Marine VSV]] are used by the [[Royal Marines]] and the [[Special Boat Service]].
==Notes== {{reflist}}
[[Category:Water transport]]