|Builder:||Armstrong Whitworth, Newcastle-Upon-Tyne|
|Laid down:||19 June 1917|
|Fate:||Sold for scrap, 23 January 1939|
|Class and type:||L-class submarine|
|Length:||235 ft (71.6 m)|
|Beam:||23 ft 6 in (7.2 m)|
|Draught:||13 ft 2 in (4.0 m)|
|Range:||4,500 nmi (8,300 km; 5,200 mi) at 8 kn (15 km/h; 9.2 mph) on the surface|
|Test depth:||150 feet (45.7 m)|
Design and description
L52 and its successors were modified to maximise the number of 21-inch (53.3 cm) torpedoes carried in the bow. The submarine had a length of 235 feet (71.6 m) overall, a beam of 23 feet 6 inches (7.2 m) and a mean draft of 13 feet 2 inches (4.0 m). They displaced 914 long tons (929 t) on the surface and 1,089 long tons (1,106 t) submerged. The L-class submarines had a crew of 44 officers and ratings. They had a diving depth of 150 feet (45.7 m).
For surface running, the boats were powered by two 12-cylinder Vickers 1,200-brake-horsepower (895 kW) diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a 600-horsepower (447 kW) electric motor. They could reach 17 knots (31 km/h; 20 mph) on the surface and 10.5 knots (19.4 km/h; 12.1 mph) underwater. On the surface, the L class had a range of 4,200 nautical miles (7,800 km; 4,800 mi) at 10 knots (19 km/h; 12 mph).
The boats were armed with six 21-inch torpedo tubes in the bow. They carried eight reload torpedoes for a grand total of a dozen torpedoes. They were also armed with two 4-inch (102 mm) deck guns.
Construction and career
HMS L53 was laid down on 19 June 1917 by Armstrong Whitworth at their Newcastle-Upon-Tyne shipyard and launched on 12 August 1919. She was then towed to HM Dockyard, Chatham for completion on 16 January 1925. HMS L53 was sold for scrap on 23 January 1939.
- Gardiner & Gray, p. 94
- Akermann, p. 165
- Harrison, Chapter 11
- Harrison, Chapter 25
- Harrison, Chapter 27
- 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) . 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.