| Navy | The Royal Navy |
| Type | Motor Anti-Submarine Boat |
| Class | BPB 63 feet-type |
| Pennant | MA/SB 31 |
| Built by | British Power Boat (Hythe, England, U.K.) |
| Ordered | 4 Sep 1939 |
| Laid down | |
| Launched | |
| Commissioned | 30 Aug 1941 |
| End service | |
| History | Used for air/sea rescue duties as of 1941/1942 |
We don't have any commands listed for HMS MA/SB 31 (MA/SB 31)
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