| 1918 | E8 | Deliberately scuttled in the Baltic off Helsingfors to prevent their capture by the German Army. The Care and Maintenance Party (under Lieutenant Downie) who carried out the scuttling also destroyed all of the stores and torpedoes of the Baltic Flotilla before returning home safely via Petrograd & Archangel. |
| 1940 | Trident (N52) | HMS Trident torpedoes and sinks the German tanker Stedingen south of the Oslofjord. |
| 1940 | Triton (N15) | HMS Triton fires 10 torpedoes against the German cruisers Blecher, Lutzow and Emden off Skagen. All torpedoes missed their targets. |
| 1940 | Seal (N37) | Late in the evening HMS Seal collided with the Estonian merchant Otto in thick fog. Seal sustained minor damage and was able to remain on patrol. |
| 1943 | Unshaken (P54) | HMS Unshaken torpedoes and sinks the Italian merchant Foggia 10 nautical miles bearing 46 off Soussa, Tunisia. |
| 1945 | Statesman (P246) | HMS Statesman sinks a Japanese sailing vessel with gunfire in the Strait of Malacca. |
| 1959 | Onslaught (S14) | Laid Down |
| 2011 | Astute (S119) | A shooting incident occurred onboard HMS Astute alongside in Southampton which resulted in the death of the WEO (Lt Cdr Ian Molyneux), the serious wounding of the MEO (Lt Cdr Chris Hodge), and the arrest of a member of the ships company. |
