▁extra ▁super structure ▁deck ▁built ▁in ▁front ▁of ▁the ▁bridge , ▁which ▁was ▁itself ▁re built . ▁She ▁also ▁received ▁four ▁ 4 - inch ▁AA ▁guns ▁in ▁single ▁mount ings ▁( in ▁ 1 9 3 9 ▁these ▁were ▁removed ▁and ▁replaced ▁by ▁two ▁tw in ▁mount ings ), ▁the ▁tor ped o ▁tub es ▁were ▁removed , ▁and ▁she ▁received ▁a ▁c rane ▁for ▁handling ▁aircraft , ▁though ▁the ▁proposed ▁aircraft ▁cat ap ult ▁was ▁not ▁fitted ▁and ▁she ▁never ▁actually ▁carried ▁an ▁aircraft . ▁Similar ▁modern is ations ▁had ▁been ▁planned ▁for ▁her ▁sister s ▁F rob isher ▁and ▁Haw kins , ▁but ▁were ▁post pon ed ▁and ▁then ▁cancel led ▁due ▁to ▁the ▁out break ▁of ▁the ▁Second ▁World ▁War . ▁ ▁Post - mod ern isation ▁service ▁ ▁After ▁she ▁recomm ission ed ▁E ff ingham ▁served ▁on ▁the ▁North ▁America ▁and ▁West ▁Ind ies ▁station . ▁Following ▁the ▁out break ▁of ▁the ▁Second ▁World ▁War ▁E ff ingham ▁pat rolled ▁the ▁Northern ▁Atlantic , ▁in ▁the ▁I cel and ▁region ▁and ▁was ▁flags hip ▁of ▁the ▁Northern ▁Pat rol ▁Force ▁and ▁transport ed ▁£ 2 ▁million ▁in ▁gold ▁res erves ▁to ▁Hal if ax , ▁Nova ▁Scot ia ▁in ▁Canada . ▁She ▁h unted ▁German ▁surface ▁ra iders ▁on ▁her ▁return , ▁and ▁this ▁led ▁her ▁to ▁be ▁in ▁Norwegian ▁waters ▁during ▁the ▁Norwegian ▁Camp aign . ▁During ▁this ▁period , ▁she ▁was ▁attacked ▁by ▁a ▁sub marine ▁but ▁not ▁hit , ▁continu ing ▁to ▁bomb ard