| 1916 | E 39 | Completed |
| 1936 | Sunfish (N 81) / V1 (USSR) | Launched |
| 1939 | H 34 | HMS H-34 fires two torpedoes at the German submarine U-3 15 nautical miles north of Kinnaird Head. The torpedoes miss. |
| 1939 | Artifex (F28) 1924 - 1961 | Passenger ship Aurania requisitioned by the Admiralty from the Cunard White Star Ltd, Liverpool for conversion to an armed merchant cruiser. |
| 1941 | Trident (N 52) | HMS Trident fires three torpedoes against the German hospital ship Birka in the Breidsundet about 4 nautical miles north-west of Havaysund, Norway. All three missed. |
| 1941 | Urge (N 17) | Overnight, HMS URGE took part in an operation to deliver a package to an agent on a beach in the Gulf of Gioia. It turned out that the agent was a double agent and the officer who was paddling ashore to deliver the package was killed by gunfire from the shore. |
| 1941 | Taurus (P 339) | Laid Down |
| 1943 | Sibyl (P 217) | HMS Sibyl torpedoes and sinks the German auxiliary minesweeper M 7022/Hummer about 12 nautical miles north-east of Bastia, Corsica, France. |
| 1943 | Strongbow (P 235) | Launched |
| 1943 | Sturdy (P 248) | Launched |
| 1954 | USS Nautilus | The worlds first nuclear reactor powered vessel USS Nautilus is commissioned. |
| 2011 | Ambush (S 120) | Initial dive test completed in Devonshire Dock |