1903 | A5 | Laid Down |
1903 | A6 | Laid Down |
1903 | A7 | Laid Down |
1903 | A8 | Laid Down |
1909 | D1 | Completed |
1917 | H42 | Laid Down |
1917 | L3 | Launched |
1919 | H51 | Completed |
1926 | O20 (Dutch) | Commissioned |
1939 | Seal (N37) | Seal is on passage from the U.K. to the Far East to join the 1st submarine flotilla based there |
1940 | Tigris (N63) | HMS Tigris sinks the French fishing vessel Sancte Michael with gunfire in the Bay of Biscay near Brest, France. |
1940 | Tuna (N94) | HMS Tuna fires torpedoes at a submarine in the North Sea about 175 nautical east of Dundee, Scotland. All torpedoes fired missed their target. |
1940 | O21 (Dutch) | O21 fired two torpedoes at German U-boat U-60 in the North Sea. Both torpedoed missed the target. |
1941 | X3 | Laid Down |
1943 | Seneschal (P255) | Laid Down |
1944 | Sirdar (P226) | HMS Sirdar sinks a small Japanese vessel with gunfire north-west of Sumatra. |
1944 | Sirdar (P226) | HMS Sirdar sinks the Japanese guardboat Kaiyo Maru No.5 with gunfire about 17 nautical miles south-east of Meulaboh, Sumatra, Netherlands East Indies. |
1944 | Viking (P69) | HMS Viking attacks a German convoy with torpedoes off Egersund, Norway. All torpedoes fired miss. |
1959 | Cachalot (N83) | Completed |