Editing Upholder/Victoria-class submarine (section)

===Armament===
The class is equipped with six {{convert|21|in|mm|adj=on|0}} [[torpedo tube]]s in the [[Bow (ship)|bow]].<ref name=gardiner532/><ref name=cocker123/> In British service, the submarines were supplied with up to 18 Marconi [[Tigerfish (torpedo)|Mk 24 Tigerfish]] Mod 2 torpedoes; they were also capable of using [[Harpoon (missile)|UGM-84 Sub-Harpoon]] missiles.<ref name=gardiner532/><ref name=cocker123/> They could also be adapted for use as a [[minelayer]].<ref name=cocker123/> The DCC Action Information Organisation and Fire Control System (AIS/FC), developed from the DCA/DCB systems in service at that time aboard Royal Navy nuclear-powered submarines, was based on two [[Ferranti#Computers|Ferranti FM1600E computers]] with a digital data bus linked to three dual-purpose consoles. Up to 35 targets could be tracked, and automatic guidance could be provided for four torpedoes against four separate targets.{{citation needed|date=May 2016}}

During the refit for Canadian service, the Sub-Harpoon and [[naval mine|mine]] capabilities were removed and the submarines were equipped with the Lockheed Martin Librascope Submarine [[fire-control system]] (SFCS) to meet the operational requirements of the Canadian Navy. Components from the fire control system of the ''Oberon''-class submarines were installed.<ref>Perkins, p. 166</ref> This gave the submarines the ability to fire the Gould [[Mark 48 torpedo|Mk 48 Mod 4 torpedo]].<ref name=saunders88/> This torpedo, operating at {{convert|40|kn|km/h}}, is deployed against targets over a range of {{convert|50|km}}. The torpedo range is {{convert|38|km}} at speeds up to {{convert|55|kn|km/h}}. The type uses active and passive homing to approach the designated target. In 2014, the Government of Canada purchased 12 upgrade kits that will allow the submarines to fire the Mk 48 Mod 7AT torpedo.<ref name=dw>{{cite news|url=https://ottawacitizen.com/news/national/defence-watch/canadian-government-to-spend-41-million-for-torpedo-upgrade-kits-for-submarines |title=Canadian government to spend $41 million for torpedo upgrade kits for submarines |last=Pugliese |first=David |newspaper=Ottawa Citizen |date=26 September 2014 |access-date=6 October 2014}}</ref>