| Navy | The Royal Navy |
| Type | Minesweeper |
| Class | Auk |
| Pennant | J 339 |
| Built by | Gulf Shipbuilding Corp. (Chickasaw, Alabama, U.S.A.) |
| Ordered | 7 Apr 1941 |
| Laid down | 1 Jan 1942 |
| Launched | 4 Oct 1942 |
| Commissioned | 7 Jun 1943 |
| End service | Jan 1947 |
| History | Returned to the United States Navy in January 1947. |
| Former name | USS Usage (AM 130) |
Commands listed for HMS Tourmaline (J 339)
Please note that we're still working on this section
and that we only list Commanding Officers for the duration of the Second World War.
| Commander | From | To | ||
| 1 | A/Lt.Cdr. (retired) George Collas Hocart, DSC, RNR | May 1943 | ca.late 43 | |
| 2 | Lt.Cdr. Charles Timothy Shepherd, DSC, RD, RNR | 1 Jan 1945 | 10 Apr 1945 | |
| 3 | T/A/Lt.Cdr. Henry Nugent Somerville, RNVR | 10 Apr 1945 | late 1946 | |
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