HMS C37
HMS "C37" 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 boats of the 1907–08 and subsequent Naval Programmes were modified to improve their speed, both above and below the surface. 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 12-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. HMS "C37" was built by Vickers, Barrow. She was  laid down on 7 April 1909 and was commissioned on 31 March 1910. Along with her sisters and , "C37" was transferred to Hong Kong in February 1911 to operate with the Royal Navy's China Squadron. HMS "C37" was sold on 25 June 1919 in Hong Kong.