| Navy | The Royal Navy |
| Type | Motor minesweeper |
| Class | MMS I |
| Pennant | J 509 |
| Built by | P.K. Harris & Sons (Appledore, England, U.K.) |
| Ordered | 1 Mar 1940 |
| Laid down | |
| Launched | 5 Sep 1940 |
| Commissioned | 24 Mar 1941 |
| End service | Apr 1944 |
| History | To France in April 1944 |
Commands listed for HMS MMS 9 (J 509)
Please note that we're still working on this section.
| Commander | From | To | |
| 1 | J M Black, RNVR | 15 Feb 1942 | Apr 1944 |
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