| 1890 | 1891 - 1921: Royal Arthur | Laid down |
| 1921 | K5 | HMS K5 sailed from Torbay as part of a fleet bound for Spain, which included the Cruiser Inconstant and Submarines K8, K9, K15 and K22. It was decided to conduct a mock battle in the Bay of Biscay and the vessels split up to take their positions. A signal was received from K5 that she was diving, but she failed to reappear at the end of the exercise. An hour before dusk a battery cover from a K boat was recovered and the next morning a sailor's ditty box was found - the last trace of K5. It is believed an accident caused K5 to exceed her maximum diving depth. |
| 1940 | Thorn (N11) | Laid Down |
| 1940 | O22 (Dutch) | Launched |
| 1943 | Saracen (P247) | HMS Saracen sinks the Italian auxiliary submarine chaser V 3/Maria Angelette with gunfire about 30 nautical miles south of Isola di Capri, Italy. |
| 1943 | Unrivalled (P45) | While on patrol of Tunisia HMS Unrivalled intercepts a small Italian naval auxiliary towing a schooner. She sinks the naval auxiliary with gunfire. |
| 1943 | Untiring (P59) | Launched |
| 1945 | Sidon (P259) | Damaged in a submerged collision with HMS Turpin. Her stem cutter was turned to starboard by a length of 4 feet. |
| 2006 | Spartan (S105) | Decommissioning ceremony was held to mark the successful completion of Spartan's service. |
