Editing S-class ferry (section)

==Design and description==
The S-class [[roll on/roll off]] ferries are the largest vessels in the [[BC Ferries]] fleet.<ref>{{cite web |url=https://www.cbc.ca/news/canada/british-columbia/bc-ferries-upgrades-spirit-class-vessels-to-operate-on-natural-gas-1.4280211 |title=BC Ferries upgrades Spirit Class vessels to operate on natural gas |work=CBC News |last=Migdal |first=Alex |date=7 September 2017}}</ref> They are {{convert|167.5|m|ftin|abbr=on}} [[Length overall|long overall]] and {{convert|156.0|m|ftin|abbr=on}} [[Length between perpendiculars|between perpendiculars]] with a [[Beam (nautical)|beam]] of {{convert|32.9|m|ftin|abbr=on}}.<ref name="miramarsvi">{{csr|register=MSI|id=9030682|shipname=Spirit of Vancouver Island|accessdate=2 February 2019}}</ref> The vessels have a [[Displacement (ship)|displacement]] of {{convert|11,681|t|LT|lk=on}},<ref name="bcferriessvi">{{cite web |url=https://www.bcferries.com/onboard-experiences/fleet/profile-spirit_of_vancouver_island.html |title=Spirit of Vancouver Island |publisher=British Columbia Ferry Services |url-status=live |archive-url=https://web.archive.org/web/20190203000529/https://www.bcferries.com/onboard-experiences/fleet/profile-spirit_of_vancouver_island.html |archive-date=3 February 2019 |access-date=2 February 2019}}</ref> an initial {{GT|18747|disp=long}} and {{DWT|2925|disp=long}}.<ref name="miramarsvi"/> The gross tonnage later increased to 21,935 for ''Spirit of Vancouver'' and 21,958 for ''Spirit of British Columbia'' as of 2018.<ref name="equasissvi">{{csr|register=E|id=9030682|shipname=Spirit of Vancouver Island|accessdate=2 February 2019}}</ref><ref name="equasissbc">{{csr|register=E|id=9015668|shipname=Spirit of British Columbia|accessdate=9 February 2019}}</ref>

The vessels were initially powered by four [[MAN SE|MAN]] 6L40/54<ref name="tsbc">{{cite web |url=http://www.tsb.gc.ca/eng/rapports-reports/marine/2000/m00w0220/m00w0220.pdf |title=Marine Investigation Report M00W0220: Collision Between Passenger/Vehicle Ferry Spirit of Vancouver Island and Pleasure Craft Star Ruby Colburne Passage, British Columbia 14 September 2000 |publisher=Transportation Safety Board of Canada |access-date=7 June 2017}}</ref> [[diesel engine]]s driving two [[Propeller|shafts]] creating {{convert|21,394|hp|kW|lk=in}}.<ref name="miramarsvi"/><ref name="bcferriessvi"/> The ferries have a maximum speed of {{convert|19.5|kn|lk=in}}. In 2018, the ferries began a mid-life refit that involved changing the propulsion system to a dual-fuel system comprising four [[Wärtsilä]] 34DF dual-fuel engines which allow the ships to use either [[marine diesel oil]] or [[liquefied natural gas]] to power the ship.<ref>{{cite web |url=http://www.lngworldnews.com/wartsila-tech-ordered-for-bc-ferries-vessels-lng-conversion/ |title=Wartsila tech ordered for BC Ferries vessels LNG conversion |website=LNG World News |url-status=live |archive-url=https://web.archive.org/web/20190203003209/https://www.lngworldnews.com/wartsila-tech-ordered-for-bc-ferries-vessels-lng-conversion/ |archive-date=3 February 2019 |access-date=2 February 2019}}</ref> Further changes include navigation and propulsion equipment, steering and evacuation systems, lighting and air conditioning. Passenger areas were upgraded including the lounges, bathrooms and retail areas.<ref>{{cite web |url=https://www.timescolonist.com/news/local/b-c-built-spirit-ferry-going-to-poland-for-refit-dual-fuel-conversion-1.22489375 |title=B.C.-built Spirit ferry going to Poland for refit, dual-fuel conversion |work=Victoria Times Colonist |last=Wilson |first=Carla |date=7 September 2017 |url-status=live |archive-url=https://web.archive.org/web/20190203002712/https://www.timescolonist.com/news/local/b-c-built-spirit-ferry-going-to-poland-for-refit-dual-fuel-conversion-1.22489375 |archive-date=3 February 2019 |access-date=2 February 2019}}</ref><ref name="dhive">{{cite web |url=https://dailyhive.com/vancouver/bc-ferries-spirit-of-british-columbia-upgrade-2018 |title=BC Ferries' Spirit of British Columbia vessel returns to service after upgrade in Poland |website=dailyhive.com |last=Chan |first=Kenneth |date=5 June 2018 |url-status=dead |archive-url=https://web.archive.org/web/20190203002511/https://dailyhive.com/vancouver/bc-ferries-spirit-of-british-columbia-upgrade-2018 |archive-date=3 February 2019 |access-date=2 February 2019}}</ref>

The ferries have capacity for 2,100 passengers and crew and 358 automobiles. The ferries are equipped with lounges and cafes.<ref name="bcferriessvi"/>