▁over ▁naval ▁requirements ▁threatened ▁the ▁ref it ▁and ▁even ▁a ▁possibility ▁that ▁the ▁ship ▁could ▁be ▁scra pped ▁however ▁convin cing ▁arguments ▁to ▁retain ▁and ▁upgrade ▁the ▁car rier ▁won ▁through . ▁ ▁The ▁ref it ▁cost ▁around ▁£ 3 0   mill ion ; ▁far ▁less ▁than ▁the ▁modern isation ▁of ▁E agle ▁but ▁also ▁added ▁several ▁improvements , ▁which ▁allowed ▁her ▁to ▁comfort ably ▁operate ▁the ▁larger ▁Ph antom ▁and ▁Bu cc ane er ▁M k . 2 ▁aircraft . ▁Her ▁modifications ▁included ▁a ▁full ▁ 8 . 5 ° ▁ang led ▁flight ▁deck , ▁new ▁and ▁far ▁more ▁powerful ▁steam ▁cat ap ult s , ▁brid le - catch ers , ▁heavy - grade ▁jet - blast ▁def lect ors ▁( both ▁of ▁which ▁E agle ▁did ▁not ▁receive ), ▁and ▁heavy - weight ▁arrest or ▁c ables . Tw elve ▁hundred ▁miles ▁of ▁new ▁cab ling ▁was ▁installed , ▁but ▁the ▁ship ▁was ▁not ▁completely ▁re w ired ▁and ▁retained ▁old ▁DC ▁elect rics . ▁A ▁modified ▁island ▁( with ▁a ▁different ▁arrangement ▁from ▁E agle ) ▁and ▁a ▁partially ▁new ▁electronic ▁suite ▁were ▁also ▁added , ▁though ▁some ▁of ▁her ▁original ▁rad ars , ▁such ▁as ▁ 9 8 3 ▁height find ers ▁were ▁retained ▁and ▁she ▁did ▁not ▁receive ▁the ▁ 3 - D ▁air - search ▁rad ar ▁set ▁that ▁her ▁sister ▁had ▁fitted , ▁instead ▁two ▁double - array ▁ 9 6 6 ▁versions ▁of ▁the ▁standard ▁R N ▁ 9 6 5 ▁long -