Events
On This Day - July 29
| 1588 | Spanish Armada | English fleet defeats the Spanish Armada |
| 1913 | E17 | Laid Down |
| 1940 | Sealion (N72) | HMS Sealion attacked the German submarine U-62, first with torpedoes and then with her deck gun. Due to the wrong range having been entered by the sight-setter, the shells fell far short and U-62 dived and escaped. |
| 1940 | Porpoise (N14) | HMS Porpoise lays minefield FD 23 (50 mines) off southern Norway. |
| 1941 | Olympus (N35) | HMS Olympus is damaged by a near miss from an Italian aircraft east of Isola dei Cavoli, Italy. |
| 1941 | Ultimatum (P34) | Completed |
| 1942 | Tactician (P314) | Launched |
| 1942 | O23 (Dutch) | Fired four torpedoes at the Japanese heavy cruisers Kumano and Suzuya escorted by the destroyers Oyashio, Hayashio and Kuroshio in the Straits of Malacca about 10 nautical miles west-southwest of Pulau Perak. The torpedoes missed their targets and O23 is depth charged but manages to escape without damage. |
| 1942 | Unseen (P51) | HMS Unseen departed on her first war patrol. Unfortunately, during training of watch-divers in surfacing and diving the submarine, the petty officer on watch pulled the wrong lever, which resulted in high-pressure air being blown into the Q-tank with both vent and Kingston valve shut, which damaged the tank and the battery, forcing Unseen to go to Sheerness for repairs to the tank before setting off for the Mediterranean. |
| 1943 | Trooper (N91) | Italian submarine Pietro Micca was torpedoed and sunk at the entrance to Adriatic, in the Strait of Otranto by the British HMS Trooper |
| 1944 | Virtue (P75) | HMS Virtue attacks a German sailing vessel with torpedoes and gunfire 13 nautical miles south-south-west of Milos but the vessel escapes. |
| 1945 | Sea Dog (P216) | HMS Seadog sinks a Japanese sailing vessel with demolition charges in the Strait of Malacca. |
| 1945 | Tudor (P326) | HMS Tudor sinks a Japanese coaster with gunfire in the Java Sea. |
| 1957 | Upstart (P65) | Used as a target and sunk |
