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SOVIET NAVY (USSR)

SUBMARINES

"Series VI" submarines (1934-1935)

M-51 1941

Name No Yard No Builder Laid down Launched Comp Fate
Ì-1 [M-1]   237 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 10.1932 9.4.1933 4.1934 stricken 11.1950
Ì-2 [M-2]   243 200 Yd (61 Kommunar Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 8.1932 8.4.1933 4.1934 charging plant 1.1951
Ì-3 [M-3]   236 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 11.1932 8.6.1933 5.1934 charging plant 1.1951
Ì-4 [M-4]   241 200 Yd (61 Kommunar Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 4.1933 16.6.1933 6.1934 stricken 1.1951
Ì-5 [M-5]   245 200 Yd (61 Kommunar Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 1933 29.10.1933 6.1934 stricken 1.1951
Ì-6  [M-6]   244 200 Yd (61 Kommunar Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 1932 24.4.1933 6.1934 TS 11.1950, stricken 1.1951
Ì-7 [M-7]   242 200 Yd (61 Kommunar Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 4.1933 5.8.1933 7.1934 stricken 1.1951
Ì-8 [M-8]   238 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 10.1932 11.8.1933 7.1934 stricken 9.1951
Ì-9 [M-9]   240 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 1.1933 27.9.1933 7.1934 TS 1.1951, stricken 9.1951
Ì-10 [M-10]   246 200 Yd (61 Kommunar Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 1933 24.8.1933 7.1934 auxiliary 11.1950
Ì-11 [M-11]   252 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 5.1933 29.11.1933 7.1934 stricken 9.1951
Ì-12 [M-12]   253 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 5.1933 2.12.1933 7.1934 stricken 1.1951
Ì-13 [M-13]   254 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 6.1933 21.12.1933 7.1934 stricken 1.1951
Ì-14 [M-14]   248 200 Yd (61 Kommunar Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 1933 26.12.1933 7.1934 auxiliary 11.1950
Ì-15 [M-15]   247 200 Yd (61 Kommunar Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 1933 26.12.1933 7.1934 stricken 8.1951
Ì-16 [M-16]   260 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 8.1933 28.12.1933 7.1934 stricken 8.1951
Ì-17 [M-17]   257 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 7.1933 27.12.1933 7.1934 TS 1.1951, stricken 9.1951
Ì-18 [M-18]   259 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 7.1933 24.12.1933 7.1934 TS 1.1951, stricken 9.1951
Ì-19 [M-19]   258 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 7.1933 14.5.1934 8.1934 auxiliary 11.1950
Ì-20 [M-20]   262 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 8.1933 17.3.1934 9.1934 stricken 8.1951
Ì-21 [M-21]   263/566 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 9.1933 20.3.1934 9.1934 stricken 8.1951
Ì-22 [M-22]   264/567 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 10.1933 15.5.1934 10.1934 stricken 8.1951
Ì-23 [M-23]   250 200 Yd (61 Kommunar Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 1933 16.5.1934 10.1934 stricken 5.1946
Ì-24 [M-24]   265 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 10.1933 1.6.1934 10.1934 stricken 5.1946
Ì-25 [M-25]   251 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 1933 16.6.1934 11.1934 stricken 5.1946
Ì-26 [M-26]   249 200 Yd (61 Kommunar Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 1933 14.4.1934 11.1934 TS 5.1946, stricken 1.1951
Ì-27 [M-27]   255 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 6.1933 23.7.1934 12.1934 stricken 5.1946
Ì-28 [M-28]   256 198 Yd (Marti Yd), Nikolayev // 202 Yd (Dalzavod Yd), Vladivostok 7.1933 21.6.1934 7.1935 TS 5.1946, stricken 1.1951
Ì-51 [M-51]   239 198 Yd (Marti Yd), Nikolayev 11.1932 22.5.1933 9.1934 stricken 11.1950
Ì-52 [M-52]   261 198 Yd (Marti Yd), Nikolayev 8.1933 13.12.1933 9.1934 TS 1.1943, stricken 7.1945

 

Displacement standard, t

 

Displacement normal, t

161 / 201

Length, m

36.9

Breadth, m

3.13

Draught, m

2.58

No of shafts

1

Machinery

1 38B8 diesel / 1 PG60/34 electric motor

Power, h. p.

685 / 240

Max speed, kts

11.1 / 6.4

Fuel, t

diesel oil 13
Endurance, nm(kts) 1000(9.6) / 40(2)

Armament

1 x 1 - 45/43 21K, 2 - 533 TT (bow, 2)

Complement

19

Diving depth operational, m

50

Project history: These submarines were developed since 1930 as small patrol submarines for Baltic, but since 1932 usage in the Far East became priority, where, thanks to the small dimensions, they could be transported without dismantling. The design was approved in September, 1932. Single-hulled all-welded (M-1-6 were riveted), CT and bridge were made from duralumin. On trials bad seaworthiness, a considerable diving time (2min) and surface speed shortage (11kts instead of designed 13kts) were revealed.
   
Modernizations: 1940-1943, all: + Mars-8 hydrophone

Naval service: M-51 was sunk 22.9.1943 at diving at Ochamchiri, 25.9.1943 she was raised and commissioned again but served as survey vessel from December 1944. M-19 collided with submarine M-12 1.6.1948 and sunk but salvaged next day and commissioned again.

 

© Ivan Gogin, 2009-15