HMS C38 - a typical C class submarine
|Laid down:||11 March 1907|
|Launched:||10 October 1908|
|Commissioned:||23 July 1909|
|Fate:||sold on 26 May 1921|
|Class and type:||C-class submarine|
|Length:||142 ft 3 in (43.4 m)|
|Beam:||13 ft 7 in (4.1 m)|
|Draught:||11 ft 6 in (3.5 m)|
|Range:||910 nmi (1,690 km; 1,050 mi) at 12 kn (22 km/h; 14 mph) on the surface|
|Test depth:||100 feet (30.5 m)|
|Complement:||2 officers and 14 ratings|
|Armament:||2 × 18 in (450 mm) bow torpedo tubes|
Design and description
The C class was essentially a repeat of the preceding B class, albeit with better performance underwater. The submarine had a length of 142 feet 3 inches (43.4 m) overall, a beam of 13 feet 7 inches (4.1 m) and a mean draft of 11 feet 6 inches (3.5 m). They displaced 287 long tons (292 t) on the surface and 316 long tons (321 t) submerged. The C-class submarines had a crew of two officers and fourteen ratings.
For surface running, the boats were powered by a single 16-cylinder 600-brake-horsepower (447 kW) Vickers petrol engine that drove one propeller shaft. When submerged the propeller was driven by a 300-horsepower (224 kW) electric motor. They could reach 12 knots (22 km/h; 14 mph) on the surface and 7 knots (13 km/h; 8.1 mph) underwater. On the surface, the C class had a range of 910 nautical miles (1,690 km; 1,050 mi) at 12 knots (22 km/h; 14 mph).
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.
Construction and career
C18 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 the war, 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.
- Gardiner & Gray, p. 87
- Harrison, Chapter 3
- Harrison, Chapter 27
- Akermann, Paul (2002). Encyclopaedia of British Submarines 1901–1955 (reprint of the 1989 ed.). Penzance, Cornwall: Periscope Publishing. ISBN 1-904381-05-7.
- Colledge, J. J.; Warlow, Ben (2006) . Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8. OCLC 67375475.
- Gardiner, Robert & Gray, Randal, eds. (1984). Conway's All the World's Fighting Ships: 1906–1921. Annapolis, Maryland: Naval Institute Press. ISBN 0-85177-245-5.
- Harrison, A. N. (January 1979). "The Development of HM Submarines From Holland No. 1 (1901) to Porpoise (1930) (BR3043)". Submariners Association: Barrow in Furness Branch. Retrieved 19 August 2015.