| 1916 | Swordfish / S1 | Completed |
| 1919 | 1886 - 1912: Pactolus | Paid off |
| 1936 | Rorqual (N74) | Launched |
| 1940 | Rorqual (N74) | HMS Rorqual hit the Italian merchant Securitas with a dud torpedo off Tulmaythah, Libya. Rorqual also lays a minefield on this day. |
| 1943 | Sickle (P224) | HMS Sickle torpedoes and damages the Italian merchant Oriani 8 miles west-north-west of Elba. |
| 1944 | Sirdar (P226) | HMS Sirdar sinks two Japanese coasters with gunfire off the west coast of Siam. |
| 1944 | Ultor (P53) | HMS Ultor torpedoes and sinks the German auxiliary submarine chaser UJ 2211/Hardy 6 nautical miles west of Genua, Italy. |
| 1944 | Vivid (P77) | HMS Vivid sinks a sailing vessel with gunfire off Monemvassia, Greece. |
| 1959 | Finwhale (S05) | Launched |
