Soviet submarine L-21

The World War II Soviet submarine L-21 belonged to the L-class or Leninets class of minelayer submarines. She was part of the last series (Group 4) of her class, having some improvements including more torpedo tubes.[1][2] The commander during the war was Sergey S. Mogilevskiy.[3]

History
Soviet Union
Name: L-21
Laid down: 15 June 1938
Launched: 14 July 1940
Commissioned: 31 August 1943
Decommissioned: 29 December 1955
Fate: Scrapped.
General characteristics
Class and type: Leninets-class
Displacement:
  • 1,108 tons surfaced
  • 1,400 tons submerged
Length: 85.3 m (279 ft 10 in)
Beam: 7 m (23 ft 0 in)
Draft: 4.05 m (13 ft 3 in)
Propulsion:
Speed:
  • 18 knots (33 km/h) surfaced
  • 9 knots (17 km/h) submerged
Range:
  • 10,000 nmi (19,000 km) at 10 kn (19 km/h) surfaced
  • 150 nmi (280 km) at 2.5 kn (4.6 km/h) submerged
Test depth: 80
Complement: 56
Armament:
  • 1 × 100 mm (3.9 in) L/68 gun
  • 1 × 45 mm (1.8 in) gun
  • 8 × 533 mm (21 in) torpedo tubes (6 bow, 2 ext aft)
  • 18 × torpedoes
  • 20 × mines
Service record
Part of: Baltic Fleet

Service history

Before completion, L-21 was sunk by German aircraft in Leningrad on 24 May 1942. L-21 was later raised, completed and commissioned, making both torpedo attacks and mine-laying. Among her victims was the Hansa, a neutral Swedish passenger ship. L-21 also managed to sink a number of German warships, including two torpedo boats and a submarine.

Ships sunk by L-21[4]
Date Ship Flag Tonnage Notes
23 November 1944 Eichberg 1,923 GRT freighter (mine)
24 November 1944 Elie 1,837 GRT freighter (mine)
24 November 1944 Hansa 563 GRT passenger ship (torpedo)
22 December 1944 Eberhard 749 GRT freighter (mine) (possibly)
14 March 1945 T3 839 t displacement torpedo boat (mine)
14 March 1945 T5 839 t displacement torpedo boat (mine)
16 March 1945 U-367 769 t displacement (surfaced) submarine (mine)
23 March 1945 V 2022/E Colzmann 581 GRT patrol boat (torpedo)
24 March 1945 Erni 105 GRT tug (torpedo)
Total:8,205 GRT

One of her mines heavily damaged the German destroyer Z43.[4]

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References
  1. "Л-20 <L-20> submarines (series XIII-1938, 1941-1943) - Soviet Navy (USSR)". navypedia.org.
  2. "Series XIII-1938" minelaying submarines". navypedia.org. Retrieved 3 August 2014.
  3. "M". town.ural.ru (in Russian). Archived from the original on 18 October 2014. Retrieved 3 August 2014.
  4. "Allied Warships L-21 Submarine of the L (Leninec) class". uboat.net/. Retrieved 3 August 2014.
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