September 17th - On This Date - RN Submarine Service

1909                Submarine HMS C29 completed

1910                Submarine HMS C34 completed

1917                Submarine HMS H41 laid down

1939                HMS Seahorse fires four torpedoes against the German submarine U-36 in the North Sea. All torpedoes fired missed their target.

1941                HMS Tigris fires four torpedoes against a merchant of 3000 tons in a German convoy in Lopphavet about 10 nautical miles west of Loppa Island, Norway. All four torpedoes missed.

1942                HMS Talisman left Gib for passage to Malta, where she was due no later than the 18th. Messages were received from the submarine on the 14th but she failed to arrive at Malta. The Italians claim to have sunk a submarine on the 17th to the north west of Malta. this is believed to have been the Talisman

1942                HMS United sinks the small Italian merchant Rostro and the Italian auxiliary submarine chaser V 39/Giovanna with gunfire near Misurata, Libya.

1943                X8 was lost 17 September 1943 while attacking the Tirpitz

1944                HMS Voracious fires four torpedoes against a merchant in the Skopelos Channel, Greece. All four torpedoes miss.

1966                HMCS Okanagan launched Chatham UK

1970                HMS Sovereign laid down