| 1915 | E30 | Completed |
| 1915 | K1 | Laid Down |
| 1915 | K14 | Laid Down |
| 1916 | E33 | Completed |
| 1917 | J7 | Completed |
| 1917 | R7 | Laid Down |
| 1917 | R8 | Laid Down |
| 1918 | G7 | Sunk by enemy action in the North Sea. Contact was lost on the 23rd October and she was declared lost on 1st November, the last British submarine lost in WW1 |
| 1918 | H41 | Completed |
| 1918 | P555 | Laid down |
| 1940 | Thetis (N25) | Completed |
| 1940 | Thunderbolt (N25) | Completed |
| 1940 | P615 | Launched |
| 1941 | Utmost (N19) | HMS Utmost destroys the Italian merchant Marigola off Kuriat Island, Tunisia. |
| 1942 | O24 (Dutch) | Attacked a Japanese merchant vessel with two torpedoes about 60 nautical miles west-northwest of Langkawi. Two torpedoes were fired but no hits were obtained. |
| 1943 | Veldt (P71) | Completed |
| 1943 | X6 | Launched |
| 1944 | Storm (P233) | HMS Storm sinks two Japanese sailing vessels with gunfire in the Gulf of Boni, Celebes, Netherlands East Indies. |
| 1952 | First Hydrogen Bomb | United States exploded the first hydrogen bomb, in a test at Eniwetok in the Marshall Islands |
