October 27th - On This Date - RN Submarine Service

1905	Cyclops	Depot Ship HMS Cyclops launched
1933	Starfish	Submarine HMS Starfish completed
1942	Spirit	Submarine HMS Spirit laid down
1942	HMS Taku	HMS Taku sinks the Greek sailing vessel Lora with gunfire off Lemnos, Greece.
1944	HMS Trenchant	Chariots released by HMS Trenchant sink the Japanese army cargo ship Sumatra Maru in Phuket harbour, Siam.
2010	Astute	Commander Andy Coles relieved of his command following a grounding incident the previous week. It was subsequently decided that he would not face a court martial. In December 2010 it was announced that Commander Iain Breckenridge, who has previously commanded the submarine HMS Tireless, would take over command.