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Yakobinets 1931

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Декабрист [Dekabrist], 8.1934- Д-1 [D-1]		177	Ordzhonikidze Yd, Leningrad	3.1927	3.11.1928	11.1930	foundered 13.11.1940
Народоволец [Narodovolets], 8.1934- Д-2 [D-2], 6.1949- Б-2 [B-2]		178	Ordzhonikidze Yd, Leningrad	3.1927	19.5.1929	9.1931	training hulk 6.1956
Красногвардеец [Krasnogvardeets], 8.1934- Д-3 [D-3]		179	Ordzhonikidze Yd, Leningrad	3.1927	12.7.1929	10.1931	lost 6.1942
Революционер [Revolyutsioner], 9.1934- Д-4 [D-4]		27/192	Marti Yd, Nikolayev	4.1927	21.3.1930	12.1930	sunk 4.12.1943
Спартаковец [Spartakovets], 9.1934- Д-5 [D-5], 6.1949- Б-32 [B-32]		28/193	Marti Yd, Nikolayev	4.1927	12.10.1930	4.1931	test ship 10.1948, stricken 12.1955
Якобинец [Yakobinets], 9.1934- Д-6 [D-6]		29/194	Marti Yd, Nikolayev	4.1927	15.11.1930	6.1931	scuttled 26.6.1942

Technical data

Displacement standard, t
Displacement normal, t	Dekabrist, Narodovolets, Krasnogvardeets: 933 / 1354 Revolyutsioner: 945 / 1355 Spartakovets, Yakobinets: 989 / 1385
Length, m	Dekabrist, Narodovolets, Krasnogvardeets: 76.0 Revolyutsioner, Spartakovets, Yakobinets: 76.6
Breadth, m	6.40
Draught, m	Dekabrist, Narodovolets, Krasnogvardeets: 3.81 Revolyutsioner: 4.30 Spartakovets, Yakobinets: 3.80
No of shafts	2
Machinery	Dekabrist, Narodovolets: 2 MAN diesels / 2 PG20 electric motors others: 2 42B6 diesels / 2 PG20 electric motors
Power, h. p.	2200 / 1050
Max speed, kts	Dekabrist, Narodovolets, Krasnogvardeets: 14 / 9 Revolyutsioner: 12.5 / 8.2 Spartakovets, Yakobinets: 11.3/ 8.7
Fuel, t	diesel oil 128
Endurance, nm(kts)	7500(8.4) / 132(2.4)
Armament	1 x 1 - 102/43 B-2, 1 x 1 - 37/30 Maxim, 8 - 533 TT (6 bow, 2 stern, 14)
Electronic equipment	Atlas Werke hydrophone
Complement	47
Diving depth operational, m	75

Standard scale images

Graphics

Project history

First Soviet-designed submarines. Design was approved 15.10.1926. Large patrol submarines with double-hull construction. They had a number of original technical decisions; for example, a pressure hull with a shuttle-shaped form (subsequently never applied). At the same time, they differed by unprecedented mass usage of imported equipment. Originally 102mm gun was fitted on the CT, during pre-war modernization the gun was transferred on to deck; light hull form in a fore also was changed.

Modernizations

1935-1936, D-4, D-5, D-6: CT was rebuilt; - 1 x 1 - 37/30; + 1 x 1 - 45/43 21K

1937, D-1: CT was rebuilt; - 1 x 1 - 102/43, 1 x 1 - 37/30; + 1 x 1 - 100/49 B-24, 1 x 1 - 45/43 21K

1940, D-3; 1941, D-2: CT was rebuilt; - 1 x 1 - 102/43, 1 x 1 - 37/30; + 1 x 1 - 100/49 B-24, 1 x 1 - 45/43 21K

1940-1941, all: - Atlas Werke hydrophone; + Mars-16 hydrophone

1941, D-4: CT was rebuilt; - 1 x 1 - 102/43, 1 x 1 - 45/43; + 1 x 1 - 100/49 B-24, 1 x 1 - 12.7/79

1945, D-5: + type 129 sonar

Naval service

D-1 the was lost 13.11.1940 in Motovsky Bay during trial diving. D-3 was lost between 10 and 30.6.1942 off Tana-fiord; presumably was lost on a mine. D-4 was lost after 1.12.1943; presumably, was lost on a mine in Kalamitsky Bay. D-6 was blown up at Sevastopol 26.6.1942.