class destroyer leader built royal_navy early 1930s ship initially assigned mediterranean_fleet transferred early remained duncan returned mediterranean_fleet world war began september transferred home_fleet december badly damaged collision following month required repairs lasted july ship joined october escorting larger ships convoys march transferred west_africa convoy escort duties months duncan rejoined 13th destroyer flotilla gibraltar july escorted convoys malta rest year refit briefly returned 13th destroyer flotilla joining indian_ocean participate operation ironclad ship recalled home converted escort destroyer late duncan assigned escort group north_atlantic conversion complete escorted number convoys required lengthy refit november helped sink german submarines october ship assigned anti submarine duties western approaches refit finished duncan remained april time transferred coastal anti submarine patrols counter effort kriegsmarine interfere allied supply lines continent placed reserve following month duncan bad shape sold scrap later year demolition completed design construction duncan displaced long tons standard load ship overall length feet beam feet draught feet inches powered parsons geared steam turbines driving shafts developed total shaft horsepower gave maximum speed knots mph steam turbines provided admiralty drum boilers duncan carried maximum long tons fuel oil gave range nautical miles knots mph ship complement officers men ship mounted calibre inch guns single mounts designated rear anti aircraft defence duncan single pounder gun funnels quadruple mark mounts inch vickers machine guns mounted sides bridge fitted water quadruple torpedo tube mounts inch torpedoes depth charge rail throwers fitted depth charges originally carried increased shortly war began pounder replaced pounder guns evacuation ship rear torpedo tube mount removed replaced pounder gun quadruple inch machine guns replaced millimetre guns duncan ordered naval estimates february laid september launched july finally commissioned navy march built flotilla leader displaced long tons rest class carried extra personnel personnel formed staff captain flotilla career ship initially assigned leader 1st destroyer flotilla mediterranean brief deployment red_sea september november portsmouth september october duncan led flotilla arriving hong_kong january years spent showing flag far_east visiting japan philippines dutch_east_indies singapore thailand malaya ship repairs december january damage sustained testing sea techniques shanghai japanese invasion evacuated british civilians sloop hms october duncan struck greek steamer whilst lying anchor china ship repaired given refit hong_kong october january lightly damaged struck high speed target china july world war outbreak war duncan sisters diana daring transferred mediterranean_fleet arriving alexandria september ships poor condition repair conducted control duties december duncan sister assigned escort battleship departed gibraltar december morning december collided heavy fog sinking destroyer loss lives duncan assigned 3rd destroyer flotilla home fleet december damaged collision merchant vessel january whilst escorting convoy causing foot hole fortunately sink taken tow temporary repairs towed repairs completed july carried post refit trials returned scapa_flow rejoin 3rd destroyer flotilla transferred 13th destroyer flotilla based gibraltar october escorting aircraft carrier heavy cruiser light cruisers glasgow sheffield joining force escorted carrier flew fighters malta operation white escorted force malta collar november late november duncan detailed escort convoy away italians january led ships 13th destroyer flotilla intercepted french convoy near seized merchant ships convoy days later took operation excess military convoy taking stores operation early february ship escorted larger ships force bombarded genoa escorted battlecruiser carrier furious early march remained based ship escorted convoys west african waters july recalled mediterranean escort convoy july reassigned 13th destroyer flotilla duncan remained gibraltar close escort convoy late september october assigned escort convoy scheduled refit began november lasted january duncan rejoined 13th destroyer flotilla gibraltar late february march ship escorted carriers eagle flew fighters malta following month duncan transferred 22nd destroyer flotilla eastern fleet support operation ironclad invasion diego months operations indian_ocean admiralty decided convert escort destroyer accordingly returned united_kingdom cape good hope escort battleship royal sovereign ship arrived november begin conversion november involved replacement gun anti submarine mortar removal director control tower rangefinder bridge exchange type target indication radar exchanging pounder guns mounted funnels guns addition guns platform removal pounder gun gun removed allow depth charge increased depth charges march duncan carried sea trials went work april joined escort group senior officer ship commander command height battle atlantic escorted convoy early major convoy battle saw destruction boats loss thirteen ships duncan forced withdraw lack fuel battle later month escorted convoy boats destroyed loss ships duncan continued north_atlantic escort duty october october ship rescued survivors sunk earlier bomber royal_air_force whilst defending convoy october duncan destroyer squadron raf sank later month october duncan shared sinking corvette whilst protecting convoy time ship poor shape required extensive refit work november north london shipyard working assigned 14th anti submarine operations duncan conducted convoy escort anti submarine operations group april assigned coastal escort pool ship placed reserve transferred june approved immediate disposal july leaking tons water day duncan turned scrapping immediately demolition completed
HMS Duncan (D99)