- Design and description
- Construction and career
- Notes
- References
{{Use dmy dates|date=December 2016}}{{Use British English|date=December 2016}}{{Infobox ship imageShip image= | Ship caption= }}{{Infobox ship career | Hide header= | Ship country= United Kingdom | United Kingdom|naval}} | Ship name= HMS L71 | Ship ordered= | Ship builder= Scotts Shipbuilding and Engineering Company, Greenock | Ship laid down= 29 August 1917 | Ship launched= | Ship acquired= | Ship commissioned=23 December 1919 | Ship decommissioned= | Ship in service= | Ship out of service= | Ship struck= | Ship reinstated= | Ship homeport= | Ship motto= | Ship nickname= | Ship honours= | Ship fate= Sold for scrapping, 25 March 1938 | Ship notes= }}{{Infobox ship characteristics | Hide header= | Header caption= | Ship class=L-class submarine | 960|LT|t|abbr=on}} surfaced- {{convert|1150|LT|t|abbr=on}} submerged
| 235|ft|m|1|abbr=on}} | 23|ft|6|in|m|1|abbr=on}} | 13|ft|2|in|1|abbr=on}} | 2400|bhp|kW|lk=in|abbr=on}} (diesel)- {{convert|1600|hp|kW|abbr=on}} (electric)
| Ship propulsion=*2 × diesel engines | 17|kn|abbr=on|lk=in}} surfaced- {{convert|10.5|kn|abbr=on}} submerged
| 4500|nmi|abbr=on|lk=in}} at {{convert|8|kn|abbr=on}} on the surface | 150|ft|1}} | Ship complement=44 | 18|in|mm|0|abbr=on}} torpedo tubes | Ship notes= }} | HMS L71 was a late-model L-class submarine built for the Royal Navy during the First World War. The boat was not completed before the end of the war and was sold for scrap in 1938. Design and descriptionL52 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 {{convert|235|ft|m|1}} overall, a beam of {{convert|23|ft|6|in|m|1}} and a mean draft of {{convert|13|ft|2|in|m|1}}.[1] They displaced {{convert|914|LT|t}} on the surface and {{convert|1089|LT|t}} submerged. The L-class submarines had a crew of 44 officers and ratings.[2] They had a diving depth of {{convert|150|ft|1}}.[3]For surface running, the boats were powered by two 12-cylinder Vickers[4] {{convert|1200|bhp|lk=in|0|adj=on}} diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a {{convert|600|hp|0|adj=on}} electric motor. They could reach {{convert|17|kn|lk=in}} on the surface and {{convert|10.5|kn}} underwater. On the surface, the L class had a range of {{convert|4200|nmi|lk=in}} at {{convert|10|kn}}.[1] 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.[5] They were also armed with two {{convert|4|in|mm|adj=on|0}} deck guns.[2] Construction and careerHMS L71 was laid down on 29 August 1917 by Scotts Shipbuilding and Engineering Company at their Greenock shipyard, launched on 17 May 1919, and completed on 23 January 1920. The boat was sold for scrap on 25 March 1938 at Milford Haven. Notes1. ^1 Gardiner & Gray, p. 94 2. ^1 Akermann, p. 165 3. ^Harrison, Chapter 11 4. ^Harrison, Chapter 25 5. ^Harrison, Chapter 27
References- {{cite book|last=Akermann|first=Paul|title=Encyclopaedia of British Submarines 1901–1955|edition=reprint of the 1989|year=2002|publisher=Periscope Publishing|location=Penzance, Cornwall|isbn=1-904381-05-7}}
- {{Colledge}}
- {{cite book |editor1-last=Gardiner|editor1-first=Robert|editor2-last=Gray|editor2-first=Randal|title=Conway's All the World's Fighting Ships: 1906–1921|year=1984|location=Annapolis, Maryland|publisher=Naval Institute Press|isbn=0-85177-245-5|lastauthoramp=y}}
- {{cite web|url=http://www.rnsubs.co.uk/Boats/BR3043/chapter07.php|title=The Development of HM Submarines From Holland No. 1 (1901) to Porpoise (1930) (BR3043)|last=Harrison|first=A. N.|date=January 1979|publisher=Submariners Association: Barrow in Furness Branch|accessdate=19 August 2015|deadurl=yes|archiveurl=https://web.archive.org/web/20150519040644/http://www.rnsubs.co.uk/Boats/BR3043/chapter07.php|archivedate=19 May 2015|df=dmy-all}}
{{British L class submarine}}{{DEFAULTSORT:L71}} 5 : British L-class submarines|Ships built on the River Clyde|1919 ships|World War I submarines of the United Kingdom|Royal Navy ship names |