design of the class
History
Soviet Union
Name	K-51
Laid down	26 February 1938
Launched	30 July 1939
Commissioned	17 September 1941
Out of service	13 March 1975
General characteristics
Displacement	1490 tons surfaced 2600 tons submerged
Length	97.65 m
Beam	7.4m
Draft	4.51m
Propulsion	2-shaft diesel electric, 8400-hp diesel, 2400-hp electric
Speed	surface - up to 22,5 knots submerged - 10 knots
Range	14,000 nm at 11 knots
Test depth	230 ft (70 m)
Complement	67 (10 officers)
Armament	6 × bow torpedo tubes 2 × stern torpedo tubes 2 × external stern torpedo tubes(24 torpedoes) 2 × 100 mm guns, 2 - 45mm guns, 20 mines
Service record
Part of:	Baltic Fleet

Soviet submarine K-51 was a K-class submarine of the Soviet Navy during World War II operating with the Baltic Fleet.

Entered in service after the German invasion, she saw active service late during the war, attacking mostly fishing vessels.

Ships sunk by K-51 ^[1]

Date	Ship	Flag	Tonnage	Notes
28 November 1944	Sollind		260 GRT	Fishing boat (artillery)
1 December 1944	Saar		235 GRT	Fishing boat (artillery)
12 January 1945	Ib		15 GRT	Fishing boat (artillery)
28 January 1945	Viborg		2028 GRT	Merchant ship (torpedo)
Total:			2,538 GRT