Soviet submarine S-55

S-55 at Mare Island Naval Shipyard, California
History
Soviet Union
Name	S-55
Builder	Dalzavod, Vladivostok
Laid down	24 November 1936
Launched	27 November 1939
Commissioned	25 July 1941
Fate	Disappeared in December 1943, sunk by unknown cause
General characteristics
Class and type	S-class submarine (Series IX-bis)
Displacement	856 t (842 long tons) surfaced 1,090 t (1,070 long tons) submerged
Length	77.8 m (255 ft 3 in)
Beam	6.4 m (21 ft 0 in)
Draft	4 m (13 ft 1 in)
Propulsion	2 × diesel engines 2 × electric motors 2 × shafts
Speed	18.85 knots (34.91 km/h) surfaced 8.8 knots (16.3 km/h) submerged
Range	9,500 nmi (17,600 km)
Test depth	80 m (260 ft)
Complement	45
Armament	6 × torpedo tubes 2 × deck guns
Service record
Part of:	Pacific Fleet 1st Submarine Brigade 25 July 1941 – January 1943 Northern Fleet Submarine Brigade January – December 1943
Commanders:	Kapitan tretego ranga Lev M. Sushkin 25 July 1941 – December 1943
Operations:	1st patrol: 28 March – 3 April 1943 2nd patrol: 22 April – 30 April 1943 3rd patrol: 30 September – 16 October 1943 4th patrol: 4 December – December 1943
Victories:	2 merchant ships sunk (6,089 GRT)

S-55 (Russian: С-55) was an S-class submarine of the Soviet Navy during World War II. At the start of the conflict it was part of the Pacific Fleet in Vladivostok, and it was sent to the Northern Fleet in late 1942, arriving at the Polyarny naval base in early 1943. During the war the submarine carried out four patrols and sank two transport ships before disappearing in December 1943.