Events
On This Day - March 17
| 1913 | C34 | The Battle Cruiser HMS Invincible and Submarine C34 were involved in s collision. No other details currently available. |
| 1916 | E37 | Completed |
| 1917 | A10 | A10 foundered while moored alongside HMS Pactolus, at Eglinton Dock, Ardrossan. She was re-floated and sold two years later. |
| 1942 | Unbeaten (N93) | HMS Unbeaten torpedoed & sank Italian submarine Guglielmotti near Cape Spartivento |
| 1942 | Upstart (P65) | Laid Down |
| 1942 | Vandal (P64) | Laid Down |
| 1943 | Splendid (P228) | HMS Splendid torpedoes and sinks the Italian merchant Devoli 6 nautical miles bearing 245 of Cape San Vito, Sicily, Italy. |
| 1943 | Trooper (N91) | HMS Trooper torpedoes and sinks the Italian merchant Forli south of Naples, Italy. |
| 1984 | Tireless (S88) | Launched |
| 2015 | Torbay (S90) | HMS Torbay arrived at Plymouth Sound to begin her transit up the River Hamoze to her berth in HM Naval Base Devonport following a six month deployment. During her deployment HMS Torbay has travelled 19,653 nautical miles, roughly equivalent of once round the world and spent 2,562 hours dived. |
