| 1905 | B 3 (I 23) | Launched |
| 1912 | Maidstone 1912 - 1929 | Commissioned |
| 1917 | K 15 | Launched |
| 1924 | L 23 | Completed |
| 1931 | Wilk (N 64) (Dutch) | Commissioned into the Polish Navy |
| 1939 | Tigris (N 63) | Launched |
| 1939 | Truant (N 68) | Completed |
| 1939 | Seahorse (S 98) | HMS Seahorse ended her 3rd war patrol at Rosyth. |
| 1940 | Upholder (N 99) | Completed |
| 1941 | Truant (N 68) | HMS Truant torpedoes sinks the Italian tanker Meteor 2 nautical miles south-east of Punta Penna, Ortona, Italy. |
| 1941 | USS Reuben James | U-552 sinks USS Reuben James (DD-245) escorting Convoy HX 156, loss of 115 lives. First US ship lost to enemy action in WWII. |
| 1942 | Taku (N 38) | HMS Taku fires four torpedoes against the Italian tanker Cerere about 10 nautical miles south of Cape Sounio, Greece. All torpedoes fired missed their target. |
| 1943 | Unsparing (P 55) | HMS Unsparing damages a sailing vessel with gunfire south of Cape Koraxas, Amorgos Island, Greece. |
| 1943 | O 24 (Dutch) | Attacked a Japanese merchant vessel of 4000-5000 tons off the northeast coast of Sumatra. Four torpedoes were fired but the target was able to evade the torpedoes. |
| 1944 | Stoic (P 231) | HMS Stoic sinks a Japanese sailing vessel with gunfire off the north-east tip of Java, Netherlands East Indies. She also bombards warehouses and fuel tanks at Jangka Island. |
| 1949 | Artful (P 456) | Commenced refit in Portsmouth Dockyard. On completion of the refit in early July 1950 HMS ARTFUL joined the 3rd Submarine Flotilla. |