The C class was essentially a repeat of the preceding B class, albeit with better performance underwater. The submarine had a length of 142feet 3inches (43.4m)overall, a beam of 13feet 7inches (4.1m) and a mean draft of 11feet 6inches (3.5m). They displaced287 long tons (292t) on the surface and 316 long tons (321t) 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 600-brake-horsepower (447kW)Vickerspetrol engine that drove one propeller shaft. When submerged the propeller was driven by a 300-horsepower (224kW)electric motor.[1] They could reach 12 knots (22km/h; 14mph) on the surface and 7 knots (13km/h; 8.1mph) underwater. On the surface, the C class had a range of 910 nautical miles (1,690km; 1,050mi) at 12 knots (22km/h; 14mph).[2]
The boats were armed with two 18-inch (45cm)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 career
C5 was laid down on 24 November 1905 by Vickers at their Barrow-in-Furnessshipyard, launched on 20 August 1906, and completed on 15 December. During World War I, the boat was generally used for coastal defence and training. C5 was sold for scrap on 31 October 1919 in Malta.
Akermann, Paul (2002). Encyclopaedia of British Submarines 1901–1955 (reprint of the 1989ed.). Penzance, Cornwall: Periscope Publishing. ISBN1-904381-05-7.
Gardiner, Robert & Gray, Randal, eds. (1985). Conway's All the World's Fighting Ships 1906–1921. Annapolis, Maryland: Naval Institute Press. ISBN0-85177-245-5.