Soviet M class, Malyutka class submarine

The M-class submarines, also Malyutka-class (Russian: baby or little one), were a class of small, single hulled submarines built in the Soviet Union and used during World War II. The submarines were built in sections so they could easily be transported by rail. The production was centered in the Ural Machine Works, 130km north to the city of Sverdlovsk, after which the sections were railed to Leningrad for assembly and fitting out. This was the first use of welding on Soviet submarines- confined to the bridge tower and casing.

The original series VI was a response to a naval staff requirement for a small submarine for employment in defending harbors and the coast lines. Principal designer was A.N. Asafov, the actual design was based upon the successful Imperial Russian Navy AG class. These vessels were mainly used in the Far East Fleet and the Baltic Fleet.
Submarines of this class were in four series: VI, VI-bis, XII, XV. Constructions of VI and VI-bis series were almost equal. Series XII in fact was re-developed project with equal tactical characteristics.
 
Specifications, Soviet M-class series VI/VI bis:
 
Displacement (srf/sub tons): 160/202
Dimensions (L*B*D feet/meter): 124’0*10’4*8’5/ 37.8*3.51*2.57
Propulsion: 1*685hp 38-V-8 diesel engine, 1*235hp PG-60(35) electric motor, 1 shaft
Speed (srf/sub knots): 19/9
Range (srf/sub n/miles@knots): 750@13.25 or 1,640@8.25/6@7.5 or 55@2.5
Diving depth (feet/meter): 197/60
Complement: 17-18 officers and crew
Torpedo: 2*21"(533mm) M-27 bow torpedo tubes, total of 2 torpedoes
Mines: none
Armament: 1*45mm/46cal. main deck gun , K-21 AA gun
 
Construction
A total of 30 hulls were built under the VI series by Ural Machine Works, Sverdlovsk; launched in 1933-34, all ran trials in the Black Sea, most dismantled and shipped by rail to the Far East. 20 more units were built under the VI-bis series by Marti yard (4 units), Nikolayev; launched 1934-35, ran trials in the Black Sea, dismantled and shipped by rail to the Far East. Zhdanov (10 units), Leningrad and Sudomekh (6 units), Leningrad; all launched 1934-35 ran trials and stationed in the Baltic. 

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Image Country Year Description
Russia 2005 Submarine M class series VI (1937), 3 March 2005, cancellation Murmansk
Russia 2005 Submarine M class series VI (1937), 3 March 2005, cancellation Saint Petersburg
Russia 2005 Submarine M class series VI (1937) (sheet of 14 stamps)
Russia 2005 Submarine M class series VI (1937)
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