▁the ▁most ▁famous ▁unit ▁of ▁the ▁group . ▁The ▁unit ▁was ▁involved ▁in ▁an ▁accident , ▁where ▁the ▁driving ▁cabin ▁was ▁dam aged . ▁F S ▁decided ▁to ▁recover ▁the ▁unit , ▁and ▁also ▁decided ▁to ▁experiment ▁a ▁new ▁type ▁of ▁driving ▁cabin , ▁similar ▁to ▁the ▁ones ▁used ▁on ▁F S ▁class ▁E . 6 5 6 . ▁The ▁unit ▁is ▁nick named ▁" C amil la ", ▁origin ating ▁from ▁which ▁is ▁supposed ▁to ▁be ▁the ▁girl friend ' s ▁name ▁of ▁a ▁worker ▁employed ▁in ▁the ▁re building ▁works , ▁who ▁wrote ▁it ▁with ▁ch alk ▁near ▁one ▁of ▁the ▁cou pl ers ▁of ▁the ▁locomot ive . ▁This ▁unit ▁is ▁also ▁historical . ▁ ▁In ▁ 1 9 5 1 ▁units ▁ 0 4 4 ▁and ▁ 0 8 9 ▁received ▁the ▁ 9 2 - 2 5 0 ▁type ▁mot ors , ▁used ▁on ▁F S ▁Class ▁E . 4 2 4 , ▁and ▁the ▁g ear ▁ratio ▁was ▁also ▁changed ▁to ▁ 2 0 / 6 5 , ▁for ▁a ▁maximum ▁speed ▁allowed ▁of ▁ ▁( max ▁power ▁ ▁instead ▁of ▁). ▁The ▁results ▁of ▁this ▁experiment ▁had ▁proven ▁successful , ▁as ▁these ▁locomot ives ▁had ▁the ▁same ▁performances ▁as ▁F S ▁Class ▁E . 4 2 8 ▁( ge ar ▁ratio ▁ 3 1 / 1 0 1 ), ▁but ▁with ▁less ▁weight ▁and ▁power ; ▁however ▁they ▁were ▁later ▁brought ▁back ▁to ▁their ▁original ▁status . ▁ ▁Units ▁from ▁ 2 7 1 ▁to ▁