1 9 0 3 ▁and ▁began ▁her ▁pre lim inary ▁sea ▁tri als ▁on ▁ 2 3 ▁June ▁ 1 9 0 5 . ▁Her ▁prop ulsion ▁mach in ery ▁was ▁pl ag ued ▁by ▁troubles ▁and ▁her ▁full - power ▁steam ▁tri als ▁did ▁not ▁begin ▁until ▁December ▁ 1 9 0 6 . ▁The ▁ship ▁was ▁commission ed ▁() ▁on ▁ 1 ▁June ▁ 1 9 0 7 . ▁Her ▁construction ▁cost ▁ 2 8 , 8 9 7 , 8 7 5 ▁fran cs . ▁ ▁Jules ▁Fer ry ▁was ▁assigned ▁to ▁the ▁Light ▁Squadron ▁() ▁of ▁the ▁Mediter rane an ▁Squadron ▁upon ▁her ▁completion ▁and ▁she ▁became ▁the ▁flags hip ▁of ▁Vice ▁Admir al ▁() ▁Jules ▁François ▁Joseph ▁Kr ant z , ▁the ▁squad ron ▁commander . ▁He ▁remained ▁in ▁command ▁until ▁mid - 1 9 0 9 ▁when ▁he ▁was ▁rel ieved ▁by ▁Vice ▁Admir al ▁Louis - Jose ph ▁P iv et . ▁On ▁ 5 ▁October ▁ 1 9 0 9 , ▁the ▁French ▁Navy ▁re organ ized ▁its ▁forces ▁and ▁red es ign ated ▁the ▁Mediter rane an ▁Squadron ▁as ▁the ▁ 1 st ▁Squadron ▁() ▁and ▁the ▁Light ▁Squadron ▁became ▁the ▁ 1 st ▁Light ▁Division ▁( ▁( DL )). ▁Jules ▁Fer ry ▁was ▁replaced ▁as ▁the ▁ 1 st ▁D L ' s ▁flags hip ▁by ▁Lé on ▁G amb etta ▁by ▁ 4 ▁April ▁ 1 9 1 1 ▁She ▁had ▁been ▁transferred ▁to ▁the ▁ 2 nd ▁D L ▁of ▁the