hms hms pennant number british submarine group class built launched february submarines named winston_churchill far ship royal_navy named involved collision coastal steamer whilst harbour involved escape trials malta commanding officer following incident run aground collided originally named ability sneak maintained links ballet including royal ballet ballet dancer scrapped portsmouth anchor display northumberland design description hms group class submarines named winston_churchill intention imply approach enemy royal_navy naming committee stating majesty ships prime minister way royal_navy vessel named churchill second batch group ordered number boats hull increased diving depth feet increase feet torpedo armament earlier group time group coming service realised external torpedo tubes major problems affected boats external tubes abandoned following class submarines expected use tropical climates boats group equipped order deal increased temperatures built laid shipyard november whilst known following launch february departed builders yard june arriving holy following day commissioned june service second world war completing training september returned order correct defects october january equipped new radar equipment equipment prepare deployment far_east arrived sri_lanka march prior war patrol route britain stopped egypt patrol centred west coast burma heading uneventful departed australia second patrol orders patrol sank japanese coaster tons gunfire near following day sank japanese coaster gunfire time tons harbour june approached sank japanese merchant cargo ship near islands damaged attack cargo ship rendezvous escort escort launched thirteen depth charges putting torpedo tubes action flooded equipment returned june remained undergoing repairs july left patrol sister hms july attacked small japanese vessels broke attack aircraft sighted august destroyed small vessels totalling tons gunfire august carried torpedo attack japanese army cargo vessel whilst convoy defended patrol boat final action war patrol august destroyed ton coastal tanker northern returned august post war royal inspection home fleet demonstrated diving firing deck gun november year group seven submarines destroyer anti submarine training course weeks class submarines rebuilt greater underwater performance extra batteries installed control room additional electric motors accommodated cutting pressure hull adding new hull section inserted aft control room diesel engines modified output increased gun armaments external torpedo tubes removed bow submarine filming film naval film directed course filming submarine depot ship mother ship cinematic link ballet dancer presented pair size ballet shoes worn film whilst harbour july damaged coastal steamer collided steamer vessel called entering harbour collided british destroyer hms steamer bounced destroyer collided snapping pushed halfway wooden took escape trials series trials conducted malta escape submarine extreme depths tests conducted men escaping depth metres ascent rates trials included use ascent suits involved suit pulled sailor head fed air ascended surface work escape trials chief petty officer awarded lieutenant commander awarded following refit portsmouth went working arriving january ordered enter dense fog boat duly turned ran aground muddy bank fog cleared realised boat run aground yards opposite house royal_navy captain charge clyde area captain divers sent assess damage finding refloated evening tide pulled shore commanding officer time lieutenant commander command later ordered severely court martial pleaded guilty charge defence statement read ship worked green company unfortunately ran fog took precautions considered necessary theoretical knowledge short instinct aware damaged collision hms july depth miles following collision commanding officer lieutenant commander ordered severely found guilty counts left final commission february ballet dancers royal ballet attended departure ceremony time oldest submarine service royal_navy attended days later time decommissioned active class submarine royal_navy arrived august year old ballet dancer named danced upper deck sold scrapped portsmouth anchor saved mounted stone northumberland town training base submarines world wars commanding officers
HMS Tiptoe (P332)