HMS C9

HMS C9 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 1922.

HMS C38 - a typical C class submarine
History
United Kingdom
Name: HMS C9
Builder: Vickers, Barrow
Laid down: 20 January 1906
Launched: 3 April 1907
Commissioned: 18 June 1907
Fate: Sold, July 1922
General characteristics
Class and type: C-class submarine
Displacement:
  • 287 long tons (292 t) surfaced
  • 316 long tons (321 t) submerged
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:
  • 600 bhp (450 kW) petrol
  • 300 hp (220 kW) electric
Propulsion:
Speed:
  • 12 kn (22 km/h; 14 mph) surfaced
  • 7 kn (13 km/h; 8.1 mph) submerged
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.[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

C9 was laid down on 20 January 1906 by Vickers at their Barrow-in-Furness shipyard, launched on 3 April 1907, and completed on 18 June. During World War I, the boat was generally used for coastal defence and training in home waters. C9 was sold for scrap in July 1922.

Notes
  1. Gardiner & Gray, p. 87
  2. Harrison, Chapter 3
  3. Harrison, Chapter 27

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.
  • Gardiner, Robert & Gray, Randal, eds. (1985). 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. Archived from the original on 19 May 2015. Retrieved 19 August 2015.
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