french battleship pre dreadnought battleship french_navy built test ideas prominent naval architect began world war sent reinforce allied naval force dardanelles campaign secondary armament removed transfer serbia relegated second line roles sent taranto depot ship struck navy list scrapped following year design designed famous french naval architect evaluate ideas designed small target lacked normal rear superstructure common ships period needed rear turret washed rear hull feet built normal upper deck height amidships bow better sea keeping provide crew superstructure narrow hull main deck general characteristics smaller predecessors metres overall beam metres maximum draft metres significantly lighter class battleships displaced metric tons long tons normally metric tons long tons earlier ships crew consisted officers enlisted men propulsion vertical triple expansion steam engines driving propeller shaft engines rated indicated horsepower steam provided boilers gave speed knots mph carried maximum tonnes long tons short tons coal gave range nautical miles speed knots mph armament carried main armament caliber modèle single gun turrets forward upper deck main deck rear guns fired armor piercing projectiles muzzle velocity metres second ship secondary armament consisted seven caliber modèle guns mounted individual casemates main deck mounted shelter deck gun shields gun mounted shelter deck turret superfiring rear main gun turret superfiring turret naval history case successful barrel gun short clear sighting hood turret guns fired shells muzzle metres second caliber modèle hotchkiss guns mounted anti torpedo boat guns mounted platforms foremast mainmast superstructure fired kilogram metres second maximum range metres theoretical maximum rate fire rounds minute seven rounds minute sustained submerged torpedo tubes carried exactly types torpedoes carried unknown torpedoes service war kilograms maximum speeds knots mph maximum ranges meters armor waterline armor belt harvey armor high tapered maximum thickness ship ends belt ended short stern traverse bulkhead lower edge belt tapered thickness upper armor belt thick ran bow aft generally high increased forward ended traverse bulkhead maximum thickness armored deck tapered ship ends thinner armored deck tapered centerline edges curved form torpedo bulkhead met inner system based experiments conducted modern russian battleship close ship main turret armor thickness ammunition shafts protected armor casemates guns ranged thickness ammunition tubes armor construction service laid july launched august enter service september cost ship spent early world war february assigned newly formed squadron intended attack turkish positions lines communication syria lebanon palestine transferred french squadron dardanelles campaign replace sunk battleship damaged allies suffered heavily attempt sail dardanelles past fortifications march ship bombarded dardanelles support french landing april provided fire support troops ashore rest month hit times providing support time guns november sent reinforce french naval mission serbia known mission rail assigned 3rd battle squadron subsequently served egypt sent taranto depot ship stricken navy list scrapped following year
French battleship Henri IV