▁her ▁time , ▁she ▁was ▁fast ▁and ▁had ▁two ▁fully ▁stabil ised ▁ 4 0   mm ▁B of ors ▁AA - g uns , ▁each ▁with ▁its ▁own ▁" H az em ey er " ▁fire ▁control . ▁The ▁ship ▁was ▁the ▁first ▁Dutch ▁ship ▁fitted ▁with ▁rad ar ▁to ▁aim ▁the ▁AA - g uns ▁in ▁the ▁right ▁direction . ▁The ▁ship ' s ▁plans ▁were ▁saved ▁from ▁the ▁Germ ans ▁and ▁elements ▁were ▁incorpor ated ▁into ▁Royal ▁Navy ▁ship ▁designs . ▁ ▁Oper ations ▁ ▁Isaac ▁S we ers ▁was ▁part ▁of ▁the ▁Al lied ▁fl ot illa ▁of ▁destroy ers ▁which ▁tor ped o ed ▁and ▁s ank ▁the ▁Italian ▁cru is ers ▁ ▁and ▁ ▁on ▁ 1 3 ▁December ▁ 1 9 4 1 , ▁at ▁the ▁Battle ▁of ▁Cape ▁Bon . ▁She ▁r idd led ▁Alberto ▁da ▁Gi uss ano ▁with ▁gun fire ▁at ▁short ▁range ▁and ▁launched ▁four ▁tor ped o es ▁against ▁the ▁; ▁all ▁of ▁them ▁missed ▁their ▁target . ▁She ▁esc orted ▁the ▁important ▁con voy ▁M W ▁ 8 B ▁to ▁Mal ta ▁in ▁January ▁ 1 9 4 2 . ▁During ▁this ▁mission ▁the ▁British ▁destroy er ▁ ▁was ▁tor ped o ed ▁by ▁the ▁German ▁sub marine ▁ ▁on ▁ 1 2 ▁January ▁ 1 9 4 2 . ▁Isaac ▁S we ers ▁to wed ▁the ▁str icken ▁British ▁destroy er ▁through ▁a ▁field ▁of ▁burning ▁oil ▁and ▁saved ▁her ▁entire ▁crew ▁of ▁ 2 4 0 ▁sail ors