| Navy | The Soviet Navy |
| Type | Submarine |
| Class | M (Malyutka) |
| Pennant | |
| Built by | Sudomekh (Leningrad, U.S.S.R.) / Yard 196 and Marti Yard (Nikolayev, U.S.S.R.) / Yard 198 |
| Ordered | |
| Laid down | 20 Mar 1934 |
| Launched | 21 Mar 1936 |
| Commissioned | 25 Jun 1936 |
| Lost | 23 Jun 1941 |
| Loss position | 57.28N, 21.17E (See a map) |
| History | Blatic fleet. Torpedoes and sunk by the German submarine U-144 west of Widawa in position 57.28N, 21.17E. Hit by U-boat |
| U-boat Attack | See our U-boat attack entry for the USSR M-78 |
We don't have any commands listed for USSR M-78
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