N-1 1936
| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| Í-1 [N-1], 10.1937- Ñ-1 [S-1] | 266 | 189 Yd (Ordzhonikidze Yd), Leningrad | 12.1934 | 8.8.1935 | 9.1936 | scuttled 23.6.1941 | |
| Í-2 [N-2], 10.1937- Ñ-2 [S-2] | 267 | 189 Yd (Ordzhonikidze Yd), Leningrad | 12.1934 | 21.12.1935 | 9.1936 | sunk 3.1.1940 | |
| Ñ-3 [S-3] (ex-Í-3 [N-3]) | 268 | 189 Yd (Ordzhonikidze Yd), Leningrad | 4.1935 | 30.4.1936 | 7.1938 | sunk 24.6.1941 |
|
Displacement standard, t |
|
|
Displacement normal, t |
840 / 1070 |
|
Length, m |
77.8 |
|
Breadth, m |
6.40 |
|
Draught, m |
4.40 |
|
No of shafts |
2 |
|
Machinery |
N-1, 2: 2 MAN M6V49/48 diesels / 2 P72/35 electric motors S-3: 2 1D diesels / 2 P72/35 electric motors |
|
Power, h. p. |
4000 / 1100 |
|
Max speed, kts |
19.5 / 9 |
|
Fuel, t |
diesel oil 100 |
| Endurance, nm(kts) | 7500(8.4) / 132(2.4) |
|
Armament |
1 x 1 - 100/49 B-24, 1 x 1 - 45/43 21K, 6 - 533 TT (4 bow, 2 stern, 12) |
| Electronic equipment | Merkuriy or Mars-A or Mars-DM or Mars-ShM hydrophone |
|
Complement |
45 - 46 |
|
Diving depth operational, m |
75 |
Project history: In the end of 1932
Soviet delegation visited German-Dutch "IvS"
designing bureau, where it was informed about
design of modern
submarines, and in the next January Soviet representatives visited trials of Spanish
submarine E1 (later sold to Turkey as Gür). The contract
with Deschimag was signed in April, 1933 on working out of the
design of new
medium submarine. To the beginning of 1935 drawings were ready. A year later mass building of
IX-bis series has begun. They were originally designated as N (Nemetsky
[German]) class, since October, 1937 as S (Sredniy [Medium])
class.
Saddle-tank hull, with mixed construction (riveted pressure hull
and welded light hull). Maximal diving depth was 100m. S-1 and 2
received diesels made by MAN, S-3 had domestic-made
supercharged engines. Fore gun on IX series boats took places behind a streamline
shield. Since 1941 the CT on submarines was covered.
Modernizations: 1940-1941, some presumably: - hydrophone; + Mars-12 hydrophone
Naval service: S-2 was lost 21.1.1940 during the Soviet-Finnish war, possibly on a mine off Alands or as a result of accident at ice navigation.
N-1
© Ivan Gogin, 2009-15