HMS L21
| Career |  |
|---|---|
| Name: | HMS L21 |
| Ordered: | December 1916[1] |
| Builder: | Vickers Limited, Barrow-in-Furness |
| Laid down: | 15 September 1917 |
| Launched: | 11 October 1919[1] |
| Fate: | Sold for scrapping, February 1939 |
| General characteristics [1] | |
| Class and type: | L class submarine |
| Displacement: | 890 long tons (904 t) surfaced 1,080 long tons (1,097 t) submerged |
| Length: | 238 ft 7 in (72.72 m) overall |
| Beam: | 23 ft 5.5 in (7.150 m) |
| Draught: | 13 ft 3 in (4.04 m) |
| Propulsion: | 2 shafts 2 diesels, 2,400 hp (1,800 kW) 2 electric motors, 1,600 hp (1,200 kW) |
| Speed: | 17 knots (31 km/h; 20 mph) surfaced 10.5 knots (19.4 km/h; 12.1 mph) submerged |
| Complement: | 38 |
| Armament: | 4 × 21 in (533 mm) bow torpedo tubes 2 × 18 in (457 mm) beam torpedo tubes 8 × 21 inch and 2 × 18 inch torpedoes[2] 1 × 4-inch gun |
HMS L21 was a British L class submarine built by Vickers, Barrow-in-Furness. She was laid down on 15 September 1917 and was commissioned on an unknown date.
L21 was sold in February 1939 and ran aground on the Isle of Arran, Bute whilst under tow to the breakers on 22 February 1939. She was refloated two days later on 24 February.[3]
References
- Gardiner, Robert (1985). Conway's All The World's Fighting Ships 1906–1921. London: Comway Maritime Press. ISBN 0-85177-245-5.
- Hutchinson, Robert (2001). Jane's Submarines: War Beneath the Waves from 1776 to the Present Day. London: HarperCollins. ISBN 978-0-00-710558-8. OCLC 53783010.
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