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| Names | Builders | Completed | Losses | Transfers | Discarding |
|---|---|---|---|---|---|
20 boats |
USSR: 20 boats |
1937-1945 // 1957-1960: 20 boats |
none |
none |
late 1980s: 20 boats |
| Displacement standard, t | 53 |
|---|---|
| Displacement full, t | 57 |
| Length, m | 26.9 |
| Breadth, m | 4.02 |
| Draught, m | 1.48 |
| No of shafts | 2 |
| Machinery | 2 Packard petrol engines |
| Power, h. p. | 2000 |
| Max speed, kts | 22 - 24 |
| Fuel, t | petrol 6.1 |
| Endurance, nm(kts) | 367(15) |
| Armament | 1 x 1 - 37/63 70K, 1 x 2 - 14.5/93, 2 DCR (8) |
| Electronic equipment | Tamir-1 sonar |
| Complement | 21 |
Former Soviet Project MO-IV patrol launches, rearmed during re-commission.
None.
No significant events.

