| Navy | The Royal Navy |
| Type | Motor minesweeper |
| Class | MMS I |
| Pennant | J 777 |
| Built by | Wilson Noble (Fraserburgh, Scotland, U.K.) |
| Ordered | 9 Jun 1942 |
| Laid down | |
| Launched | 7 Jan 1943 |
| Commissioned | 19 Apr 1943 |
| End service | |
| History | Sold in 1945 |
Commands listed for HMS MMS 277 (J 777)
Please note that we're still working on this section.
| Commander | From | To | |
| 1 | T/Lt. Robert Gerald Stephen Clarke, RNVR | 11 Apr 1943 | 8 Jun 1943 |
| 2 | Alfred John Froude, RNVR | 8 Jun 1943 | 28 Aug 1943 |
| 3 | T/Skr. Lawrence Oliver, RNR | 28 Aug 1943 | 17 Jun 1944 |
| 4 | A/Skr.Lt. William Boyle, DSC, RNR | 17 Jun 1944 | late 1945 |
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