HMS L20
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HMS L20 was a L-class submarine built for the Royal Navy during World War I. The boat was not completed before the end of the war and was sold for scrap in 1935.
Design and description
L9 and its successors were enlarged to accommodate 21-inch (53.3 cm) torpedoes and more fuel. The submarine had a length of Script error: No such module "convert". overall, a beam of Script error: No such module "convert". and a mean draft of Script error: No such module "convert"..[1] They displaced Script error: No such module "convert". on the surface and Script error: No such module "convert". submerged. The L-class submarines had a crew of 38 officers and ratings.[2] They had a diving depth of Script error: No such module "convert"..[3]
For surface running, the boats were powered by two 12-cylinder Vickers[4] Script error: No such module "convert". diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a Script error: No such module "convert". electric motor.[1] They could reach Script error: No such module "convert". on the surface and Script error: No such module "convert". underwater. On the surface, the L class had a range of Script error: No such module "convert". at Script error: No such module "convert"..[3]
The boats were armed with four 21-inch torpedo tubes in the bow and two 18-inch (45 cm) in broadside mounts. They carried four reload torpedoes for the 21-inch tubes for a grand total of ten torpedoes of all sizes.[5] They were also armed with a Script error: No such module "convert". deck gun.[2]
Construction and career
HMS L20 was laid down on 26 July 1917 by Vickers at their Barrow-in-Furness shipyard, launched on 23 September 1918, and completed on 28 January 1919. L20 was assigned to the 4th Submarine Flotilla and Script error: No such module "WPSHIPS utilities". in 1919 and sailed to Hong Kong, arriving on 14 April 1920. She was transferred to the reserve flotilla in 1923 in Hong Kong. She was sold to John Cashmore Ltd on 7 January 1935 for breaking up at Newport. Her bell is in the Royal Navy Submarine Museum.
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L20 in Bias Bay (Daya Bay), China, May 1929 (Thomas C. Wilding collection)
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L20 on Yangtze River (written Yangtse Kiang) c. 1929 (Thomas C Wilding collection)
Notes
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References
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