NAVYPEDIA

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Л-7 [L-7] (ex-Ворошиловец [Voroshilovets]), 6.1949- Б-23 [B-23]		263	189 Yd (Ordzhonikidze Yd), Leningrad // 202 Yd (Dalzavod Yd), Vladivostok	4.1934	15.5.1935	12.1936	stricken 4.1958
Л-8 [L-8] (ex-Дзержинец [Dzerzhinets]), 6.1949- Б-24 [B-24]		264	189 Yd (Ordzhonikidze Yd), Leningrad // 202 Yd (Dalzavod Yd), Vladivostok	4.1934	10.9.1935	12.1936	hulk 2.1952
Л-9 [L-9] (ex-Кировец [Kirovets]), 6.1949- Б-19 [B-19]		265	189 Yd (Ordzhonikidze Yd), Leningrad // 202 Yd (Dalzavod Yd), Vladivostok	6.1934	25.8.1935	12.1936	stricken 2.1959
Л-10 [L-10] (ex-Менжинец [Menzhinets]), 6.1949- Б-10 [B-10]		285	189 Yd (Ordzhonikidze Yd), Leningrad // 202 Yd (Dalzavod Yd), Vladivostok	6.1934	18.12.1936	12.1937	charging plant 2.1959
Л-11 [L-11], 6.1949- Б-11 [B-11]		284	198 Yd (Marti Yd), Nikolayev // 199 Yd, Komsomolsk-on-Amur	6.1934	4.12.1936	11.1938	stricken 2.1959
Л-12 [L-12], 6.1949- Б-12 [B-12]		286	198 Yd (Marti Yd), Nikolayev // 199 Yd, Komsomolsk-on-Amur	6.1934	7.11.1936	12.1938	hulk 2.1959

Technical data

Displacement standard, t
Displacement normal, t	1040 / 1335
Length, m	79.9
Breadth, m	7.00
Draught, m	3.96
No of shafts	2
Machinery	2 42BM6 diesels / 2 PG84/50 electric motors
Power, h. p.	2200 / 1300
Max speed, kts	14.5 / 8.5
Fuel, t	diesel oil 140
Endurance, nm(kts)	7500(10) / 135(2.5)
Armament	1 x 1 - 100/49 B-24, 1 x 1 - 45/43 21K, 6 - 533 TT (bow, 16), 20 mines
Electronic equipment	Merkuriy or Mars-A or Mars-DM or Mars-ShM hydrophone
Complement	55
Diving depth operational, m	75

Standard scale images

Project history

Submarines of "combined" type storing powerful torpedo armament at possibility to laid mines. In construction experience of building of D class submarines was used, and also decisions borrowed from raised British subarine L55. Saddle-tank hull. Mines were carried in two horizontal watertight tubes and laid astern.     Submarines of II series were built for Baltic and Black Seas. In 1934 for Pacific Fleet there was begun building of XI series, in which construction a number of changes was brought. These submarines were laid down on European shipyards, then taken apart and transported by railways for completion to the Far East. Maximal diving depth for II and XI series was 90 m; for subsequent 100m.

Modernizations

1941-1943, all: - hydrophone; + Mars-16 hydrophone

1944, L-8, L-11, L-12; 1945, L-7, L-9: + type 129 sonar

Naval service

No significant events.