design of the class
History
Name	K-56
Laid down	17 October 1937
Launched	29 December 1940
Commissioned	25 November 1942
Out of service	16 October 1957
Fate	Expended 1957
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-56 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.

Ships sunk by K-56 ^[1]

Date	Ship	Flag	Tonnage	Notes
29 December 1944	Venersborg		1046 GRT	Merchant ship (torpedo)
11 April 1945	Ramona		57 GRT	Fishing boat (artillery)
Total:			1,103 GRT

Additionally, K-56 torpedoed and damaged the German merchant Baltenland(3038 GRT) off Poland on 26 December 1944.

Sunk in 1957 at nuclear trials.