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| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
|---|---|---|---|---|---|---|---|
| (ex-С-28 [S-28]) | 010 | 363 | Krasnoe Sormovo, Gorkiy, USSR | 29.12.1960 | 21.6.1961 | 23.12.1961 // 17.3.1982 | hulk 1989 |
| (ex-С-7 [S-7]) | 011 | 361 | Krasnoe Sormovo, Gorkiy, USSR | 25.11.1960 | 28.2.1961 | 17.9.1961 // 17.3.1983 | hulk 1989 |
| Displacement standard, t |
|
|---|---|
| Displacement normal, t | 1330 / 1729 |
| Length, m | 76.6 |
| Breadth, m | 6.70 |
| Draught, m | 4.60 |
| No of shafts | 2 |
| Machinery | 2 37D diesels / 2 PG-101 electric motors |
| Power, h. p. | 4000 / 2700 |
| Max speed, kts | 15.2 / 13 |
| Fuel, t | diesel oil |
| Endurance, nm(kts) | 7400(9.2) / 350(2) |
| Armament | 8 - 533 TT (6 bow, 2 stern, 14 or 28 mines) |
| Electronic equipment | Flag radar, MG-200 Arktika-M, Tuloma, Svet-M sonars, Nakat ECM suite |
| Complement | 58 |
| Diving depth operational, m | 240 |
Former Soviet submarines of project 633, transferred on five-year lease but remained after active service as battery charging and training hulks.
None.
No significant events.

