| Navy | The Soviet Navy |
| Type | Submarine |
| Class | M (Malyutka) |
| Pennant | |
| Mod | 2nd group (Type VI modified) |
| Built by | Marti Yard (Nikolayev, U.S.S.R.) / Yard 198 and Zhdanov (Leningrad, U.S.S.R.) / Yard 190 |
| Ordered | |
| Laid down | 25 Aug 1934 |
| Launched | 15 Sep 1935 |
| Commissioned | 22 Jul 1936 |
| Lost | 1 Jul 1941 |
| Loss position | 59° 09'N, 22° 58'E |
| History | Mined and sunk off Vormsi, Estonia in position 59.09N, 22.58E. |
We don't have any commands listed for USSR M-81
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