9 ▁was ▁involved ▁in ▁an ▁attack ▁on ▁con voy ▁O NS ▁ 1 6 5 ▁in ▁the ▁middle ▁of ▁the ▁North ▁Atlantic . ▁Loc ated ▁by ▁H F / DF ▁and ▁rad ar , ▁she ▁was ▁forced ▁to ▁the ▁surface ▁by ▁depth ▁charges ▁and ▁then ▁ram med ▁by ▁the ▁destroy er ▁. ▁None ▁of ▁her ▁ 4 6 ▁crew ▁surv ived ▁the ▁s inking . ▁ ▁Em blem ▁U - 6 9 ▁was ▁unusual ▁in ▁that ▁she ▁had ▁two ▁ships ' ▁em blem s . ▁The ▁first , ▁adopted ▁on ▁commission ing , ▁was ▁chosen ▁by ▁her ▁first ▁commander , ▁Met z ler . ▁This ▁consisted ▁of ▁the ▁word ▁Hor r ido ▁( T ally - H o ) ▁and ▁the ▁three ▁two - flag ▁signal ▁groups ▁for ▁the ▁letters ▁L ▁M ▁A , ▁a ▁reference ▁to ▁Got z ▁von ▁Ber lich ingen ’ s ▁famous ▁sc at ological ▁ret ort . ▁The ▁second ▁came ▁about ▁when ▁the ▁ 7 th ▁fl ot illa ▁adopted ▁Pri en ’ s ▁b ull ▁em blem ▁as ▁its ▁fl ot illa ▁ins ign ia . ▁U - 6 9 s ▁new ▁first ▁officer , ▁who ▁had ▁not ▁seen ▁the ▁ins ign ia ▁before , ▁found ▁a ▁picture ▁of ▁a ▁cow ▁on ▁a ▁French ▁che ese ▁box , ▁and ▁had ▁that ▁painted ▁on ▁the ▁con ning ▁tower , ▁complete ▁with ▁the ▁mot to ▁on ▁the ▁box ▁" la ▁v ache ▁qui ▁rit " ▁( the ▁la ughing ▁cow ). ▁When ▁Met z ler ▁saw ▁it , ▁he