Seawolf 1940
| Name | No | Builder | Laid down | Launched | Comp | Fate |
| Sealion | N72 | Cammell Laird, Birkenhead | 5/1933 | 16/3/1934 | 12/1934 | sunk as target 3/3/1945 |
| Shark | N54 | Chatham DYd | 6/1933 | 31/5/1934 | 12/1934 | sunk 6/7/1940 |
| Salmon | S65 - N65 | Cammell Laird, Birkenhead | 6/1933 | 30/4/1934 | 3/1935 | sunk 9/7/1940 |
| Snapper | N39 | Chatham DYd | 9/1933 | 25/10/1934 | 6/1935 | sunk 12/2/1941 |
| Seawolf | N46 | Scotts, Greenock | 5/1934 | 28/11/1935 | 3/1936 | BU 6/1945 |
| Spearfish | S69 - N69 | Cammell Laird, Birkenhead | 5/1935 | 21/4/1936 | 12/1936 | sunk 1/8/1940 |
| Sunfish | N81 | Chatham DYd | 7/1935 | 30/9/1936 | 7/1937 | to Soviet Union 5/1944 (Â-1) (V-1) |
| Sterlet | N22 | Chatham DYd | 7/1936 | 22/9/1937 | 4/1938 | sunk 16/4/1940 |
|
Displacement standard, t |
670 |
|
Displacement normal, t |
768 / 960 |
|
Length, m |
63.6 |
|
Breadth, m |
7.32 |
|
Draught, m |
3.61 |
|
No of shafts |
2 |
|
Machinery |
2 Admiralty diesels / 2 electric motors |
|
Power, h. p. |
1550 / 1440 Sunfish: 1900 / 1440 |
|
Max speed, kn |
14 / 10 Sunfish: 15 / 10 |
|
Fuel, t |
diesel oil 39 |
|
Endurance, nm(kts) |
3800(10) / |
|
Armament |
6 - 533 TT (bow; 12), 1 x 1 - 76/45 QF Mk I HA, 1 x 1 - 12.7/62 |
| Sensors | sonar |
|
Complement |
39 |
| Diving depth operational, m | 60 |
Ship project history: Development of "S" class with a little bit increased length at the expense of additional (1.9m) section of pressure hull. Sunfish had more powerful diesels. Submarines were built under 1931-1935 programs.
Modernizations: 1940s, Seawolf, Sunfish: received ability to carry 12 M2 mines instead of torpedoes.
Naval service: Sterlet was sunk by DCs of German minesweeper Ì75 and submarine chasers UJ125, UJ126 and UJ128 in the North Sea 18/4/1940. Salmon was lost 9/7/1940 on a mine at Stavanger. Shark was badly damaged 5/7/1940 by German aircraft and minesweepers M1803, M1806 and M1807 and sunk next day. Spearfish was sunk 1/8/1940 by German submarine U34 in the North Sea. Snapper was sunk by DCs of German minesweepers Ì2, Ì13 and Ì25 in Atlantic 12/2/1941. Sealion was sunk as a target 3/3/1945.
Salmon 1938
© Ivan Gogin, 2008-10