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Shch-303 1943

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Щука [Shchuka], 9.1934- Щ-301 [Shch-301]		199	189 Yd (Ordzhonikidze Yd), Leningrad	2.1930	1.12.1930	10.1933	sunk 28.8.1941
Окунь [Okun'], 9.1934- Щ-302 [Shch-302]		200	189 Yd (Ordzhonikidze Yd), Leningrad	2.1930	6.11.1931	10.1933	sunk 11-14.11.1942
Ёрш [Yorsh], 9.1934- Щ-303 [Shch-303], 6.1949- С-303 [S-303]		201	189 Yd (Ordzhonikidze Yd), Leningrad	2.1930	6.11.1931	11.1933	stricken 9.1954
Комсомолец [Komsomolets] (ex-Язь [Yaz'], ex-Ударник [Udarnik]), 9.1934- Щ-304 [Shch-304]		550/1	112 Yd (Krasnoye Sormovo Yd), Gorkiy // 189 Yd (Ordzhonikidze Yd), Leningrad	2.1930	2.5.1931	8.1934	sunk 29.10.1942

Technical data

Displacement standard, t
Displacement normal, t	578 / 706
Length, m	57.0
Breadth, m	6.20
Draught, m	3.80 - 3.90
No of shafts	2
Machinery	Shchuka, Okun': 2 MAN 8V28/38 diesels / 2 PGV-8 electric motors Yorsh, Komsomolets: 2 38B8 diesels / 2 PGV-8 electric motors
Power, h. p.	Shchuka, Okun': 1000 / 800 Yorsh, Komsomolets: 1370 / 800
Max speed, kts	Shchuka, Okun': 11.6 / 8.5 Yorsh, Komsomolets: 12.5 / 8.5
Fuel, t	diesel oil 52
Endurance, nm(kts)	3130(8.5) / 112(2.8)
Armament	1 x 1 - 45/43 21K, 6 - 533 TT (4 bow, 2 stern, 10)
Electronic equipment	Merkuriy or Mars-A or Mars-DM or Mars-ShM hydrophone
Complement	41
Diving depth operational, m	75

Standard scale images

Graphics

Project history

Well-known "Shchukas" ("pikes"): the most mass series of Soviet WWII-era submarines. They were designed since 1928 as patrol small (later medium) submarines for Baltic. The big effect on the design was rendered by raised British submarine L55 from which there was borrowed architectural type: saddle-tank with bulge tanks, and a hull form. III series submarines differed by only one 45mm gun, all subsequent submarines received two, nevertheless, weakness of artillery armament during war remained one of the main lacks of the project.

Maximal diving depth for all series was 90m.

Modernizations

1939, Shch-304: - hydrophone; + Orion sonar

1940-1941, Shch-301, Shch-302, Shch-303: - hydrophone; + Mars-12 hydrophone

1944, Shch-303: + type 129 sonar

Naval service

Shch-301 was lost 28.8.1941 on a mine en route from Tallinn to Kronshtadt. Shch-302 was lost presumably 11-12.10.1942 on mines in Gulf of Finland or sunk 14.10.1942 by Finnish SB bomber at Porkkala-Udd. Shch-304 was lost after 29.10.1942 by unknown cause.