- Design and description
- Construction and career
- Notes
- References
- External links
{{Use dmy dates|date=January 2018}}{{Use British English|date=January 2018}}{{Infobox ship image| Ship image= | Ship caption=HMS C38 - a typical C class submarine
}}{{Infobox ship career | Hide header= | Ship country=United Kingdom | UK|naval}} | Ship name=HMS C18 | Ship ordered= | Ship awarded= | Ship builder=Vickers, Barrow | Ship laid down= 11 March 1907 | Ship launched=10 October 1908 | Ship christened= | Ship acquired= | Ship commissioned= 23 July 1909 | Ship recommissioned= | Ship decommissioned= | Ship in service= | Ship out of service= | Ship renamed= | Ship reclassified= | Ship refit= | Ship captured= | Ship struck= | Ship reinstated= | Ship fate=sold on 26 May 1921 | Ship status= | Ship homeport=
}}{{Infobox ship characteristics | Hide header= | Header caption= | Ship class=C-class submarine | 287|LT|t|abbr=on}} surfaced- {{convert|316|LT|t|abbr=on}} submerged
| 142|ft|3|in|m|1|abbr=on}} | 13|ft|7|in|m|1|abbr=on}} | 11|ft|6|in|1|abbr=on}} | 600|bhp|kW|lk=in|abbr=on}} petrol- {{convert|300|hp|kW|abbr=on}} electric
| Ship propulsion=*1 × 16-cylinder Vickers petrol engine | 12|kn|abbr=on|lk=in}} surfaced- {{convert|7|kn|abbr=on}} submerged
| 910|nmi|abbr=on|lk=in}} at {{convert|12|kn|abbr=on}} on the surface | 100|ft|1}} | Ship complement=2 officers and 14 ratings | Ship armament=2 × 18 in (450 mm) bow torpedo tubes | Ship notes=
}} | HMS C18 was one of 38 C-class submarines built for the Royal Navy in the first decade of the 20th century. The boat survived the First World War and was sold for scrap in 1921. Design and descriptionThe C class was essentially a repeat of the preceding B class, albeit with better performance underwater. The submarine had a length of {{convert|142|ft|3|in|m|1}} overall, a beam of {{convert|13|ft|7|in|m|1}} and a mean draft of {{convert|11|ft|6|in|m|1}}. They displaced {{convert|287|LT|t}} on the surface and {{convert|316|LT|t}} submerged. The C-class submarines had a crew of two officers and fourteen ratings.[1] For surface running, the boats were powered by a single 16-cylinder {{convert|600|bhp|lk=in|0|adj=on}} Vickers petrol engine that drove one propeller shaft. When submerged the propeller was driven by a {{convert|300|hp|0|adj=on}} electric motor.[1] They could reach {{convert|12|kn|lk=in}} on the surface and {{convert|7|kn}} underwater. On the surface, the C class had a range of {{convert|910|nmi|lk=in}} at {{convert|12|kn}}.[2] The boats were armed with two 18-inch (45 cm) torpedo tubes in the bow. They could carry a pair of reload torpedoes, but generally did not as they would have to remove an equal weight of fuel in compensation.[3] Construction and careerC18 was laid down on 11 March 1907 by Vickers at their Barrow-in-Furness shipyard, launched on 10 October 1908, and completed on 23 July 1909. During World War I, the boat was generally used for coastal defence and training in home waters. HMS C18 was sold for scrap on 26 May 1921 in Sunderland. Notes1. ^1 Gardiner & Gray, p. 87
2. ^Harrison, Chapter 3
3. ^Harrison, Chapter 27
References- {{cite book|last=Akermann|first=Paul|title=Encyclopaedia of British Submarines 1901–1955|edition=reprint of the 1989|year=2002|publisher=Periscope Publishing|location=Penzance, Cornwall|isbn=1-904381-05-7}}
- {{Colledge}}
- {{cite book |editor1-last=Gardiner|editor1-first=Robert|editor2-last=Gray|editor2-first=Randal|title=Conway's All the World's Fighting Ships: 1906–1921|year=1984|location=Annapolis, Maryland|publisher=Naval Institute Press|isbn=0-85177-245-5|lastauthoramp=y}}
- {{cite web|url=http://www.rnsubs.co.uk/Boats/BR3043/chapter07.php|title=The Development of HM Submarines From Holland No. 1 (1901) to Porpoise (1930) (BR3043)|last=Harrison|first=A. N.|date=January 1979|publisher=Submariners Association: Barrow in Furness Branch|accessdate=19 August 2015|deadurl=yes|archiveurl=https://web.archive.org/web/20150519040644/http://www.rnsubs.co.uk/Boats/BR3043/chapter07.php|archivedate=19 May 2015|df=}}
External links - MaritimeQuest HMS C18 pages
{{British C class submarine}}{{DEFAULTSORT:C18}} 3 : British C-class submarines|Royal Navy ship names|1908 ships |