HMS C6 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 1919. 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 overall, a beam of and a mean draft of . They displaced on the surface and 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 Vickers petrol engine that drove one propeller shaft. When submerged the propeller was driven by a electric motor. They could reach on the surface and underwater. On the surface, the C class had a range of at . 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 C6 was laid down on 24 November 1905 by Vickers at their Barrow-in-Furness shipyard, launched on 20 August 1906, and completed on 21 January 1907. During World War I, the boat was generally used for coastal defence and training. C6 was sold for scrap on 20 November 1919. Notes References British C-class submarines Ships built in Barrow-in-Furness Royal Navy ship names 1906 ships