▁nature ▁the ▁work ▁was ▁very ▁dangerous ▁and ▁many ▁workers ▁were ▁killed ▁and ▁injured ▁during ▁the ▁manufact uring ▁process ; ▁however ▁due ▁to ▁the ▁secre cy ▁surrounding ▁the ▁factory ▁and ▁its ▁workers , ▁many ▁inc idents ▁went ▁un record ed ▁and ▁un report ed ▁in ▁the ▁news ▁and ▁their ▁efforts ▁went ▁un recogn ised . ▁ ▁In ▁ 2 0 0 0 ▁local ▁newspaper ▁The ▁Northern ▁E cho ▁launched ▁a ▁campaign ▁to ▁have ▁their ▁work ▁officially ▁recogn ised , ▁this ▁led ▁to ▁a ▁mem orial ▁service ▁which ▁was ▁attended ▁by ▁Prime ▁Minister ▁and ▁local ▁MP ▁Tony ▁Bla ir ▁and ▁the ▁Queen . ▁A ▁permanent ▁mem orial ▁was ▁also ▁placed ▁in ▁Newton ▁Ay cl iffe ▁town ▁centre ▁comm emor ating ▁their ▁efforts . ▁ ▁Oper ations ▁The ▁mar sh y ▁location ▁was ▁chosen ▁as ▁it ▁was ▁an ▁ideal ▁site , ▁shr oud ed ▁in ▁fog ▁and ▁mist ▁for ▁much ▁of ▁the ▁year ▁providing ▁cover ▁against ▁bomb ing ▁by ▁the ▁Luft wa ffe . ▁It ▁opened ▁as ▁R OF ▁ 5 9 ▁( F illing ▁factory ▁early ▁in ▁ 1 9 4 1 , ▁resulting ▁in ▁the ▁construction ▁and ▁opening ▁of ▁two ▁new ▁stations ▁on ▁the ▁former ▁Clar ence ▁Railway ▁at ▁ ▁and ▁. ▁ ▁As ▁a ▁m un itions ▁factory , ▁R OF ▁Ay cl iffe ▁operated ▁ 2 4 ▁hours ▁a ▁day , ▁employ ing ▁over ▁ 1 7 , 0 0 0 ▁workers ▁in ▁three ▁shift ▁groups . ▁Most ▁of ▁the ▁workers ▁were ▁women . ▁They ▁were ▁transport ed ▁from ▁surrounding ▁areas ▁onto