Events
On This Day - May 7
| 1940 | Una (N 87) | Laid Down |
| 1942 | Thorn (N 11) | HMS Thorn fires four torpedoes against an Italian convoy in the central Mediterranean about 180 nautical miles north-west of Benghazi, Libya. All torpedoes missed their targets. |
| 1943 | Unrivalled (P 45) | HMS Unrivalled sinks Italian sailing vessel Albina |
| 1943 | Solent (P 262) | Laid Down |
| 1944 | Tantivy (P 319) | HMS Tantivy sinks a Siamese sailing vessel with gunfire of the west coast of Siam. |
| 1945 | Supreme (P 252) | HMS Supreme sinks two Japanese coasters and a Japanese sailing vessel with gunfire in the Gulf of Siam. |
| 2014 | Artful (S 121) | Launched |
