▁at ▁an ▁elev ation ▁of ▁+ 1 5 ° ▁with ▁their ▁ ▁shell . ▁Each ▁gun ▁was ▁provided ▁with ▁ 1 5 0 ▁r ounds . ▁ ▁Tw enty ▁V ick ers ▁quick - f iring ▁( Q F ) ▁ 3 - p ound er ▁guns ▁were ▁fitted ▁for ▁defence ▁against ▁tor ped o ▁boats , ▁six ▁on ▁tur ret ▁roof s ▁and ▁four teen ▁in ▁the ▁super structure , ▁all ▁on ▁pivot ▁mount s . ▁These ▁guns ▁were ▁too ▁small ▁to ▁be ▁useful ▁against ▁the ▁tor ped o ▁boats ▁before ▁they ▁got ▁within ▁tor ped o ▁range . ▁They ▁fired ▁a ▁ ▁shell ▁that ▁we ighed ▁ ▁and ▁was ▁fired ▁at ▁a ▁maximum ▁m uzz le ▁velocity ▁of ▁. ▁This ▁gave ▁it ▁a ▁range ▁of ▁ ▁at ▁an ▁elev ation ▁of ▁+ 2 0 ° . ▁ 2 5 0 ▁r ounds ▁were ▁carried ▁for ▁each ▁gun . ▁ ▁The ▁ships ▁also ▁mounted ▁three ▁sub mer ged ▁ 1 8 - inch ▁tor ped o ▁tub es . ▁They ▁carried ▁a ▁total ▁of ▁eigh teen ▁tor ped o es ▁in ▁addition ▁to ▁the ▁six ▁ ▁tor ped o es ▁that ▁could ▁be ▁used ▁by ▁the ▁two ▁ ▁steam ▁p inn aces . ▁ ▁Arm our ▁The ▁Duke ▁of ▁Edinburgh - class ▁ships ▁had ▁a ▁ ▁water line ▁arm our ▁bel t ▁of ▁Kru pp ▁c ement ed ▁arm our ▁that ▁covered ▁ ▁of ▁the ▁h ull ▁amid ships . ▁It ▁covered ▁the ▁side ▁of ▁the ▁ship ▁up ▁to ▁the ▁upper ▁deck