HMS C11
 HMS C38 - a typical C-class submarine | |
| History | |
|---|---|
 United Kingdom
| |
| Name: | HMS C11 |
| Builder: | Vickers, Barrow |
| Laid down: | 6 April 1906 |
| Launched: | 27 March 1907 |
| Commissioned: | 3 September 1907 |
| Fate: | Sunk in collision, 15 July 1909 |
| General characteristics | |
| Class & type: | C-class submarine |
| Displacement: |
|
| Length: | 142 ft 3 in (43.4 m) |
| Beam: | 13 ft 7 in (4.1 m) |
| Draught: | 11 ft 6 in (3.5 m) |
| Installed power: | |
| Propulsion: |
|
| Speed: |
|
| 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 |
HMS C11 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 1920.
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.[1]
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.[1] 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).[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 career
C11 was built by Vickers at their Barrow-in-Furness shipyard, laid down on 6 April 1906 and was commissioned on 3 September 1907. The boat was sunk in a collision with the collier Eddystone in the North Sea south of Cromer, Norfolk on the 14 July 1909.[4] There were only three survivors.[4] The wreck was discovered in the late 1990s.
Notes
References
- 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) [1969]. 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.