japanese battleship class semi dreadnought battleship built imperial_japanese_navy decade 20th century second battleship built domestically japan use steam turbines ship named ship saw combat world war disarmed sunk target accordance terms background class ordered late war naval program russo japanese war unlike previous class pre dreadnought battleships battleships ordered japanese shipyards originally designed dozen inch guns redesigned shortage guns japan reduce costs design description ship overall length feet beam feet inches normal draft feet inches displaced long tons normal load crew consisted officers enlisted men fitted pair steam turbine sets steam water tube boilers turbines rated total shaft horsepower design speed knots mph ship reached speed knots mph sea trials shp carried coal oil range nautical miles speed knots mph unlike half sister funnels ship completed caliber inch 41st year type guns gun turrets fore aft superstructure fired pound armor piercing shells maximum range intermediate armament consisted twin gun turrets equipped caliber type inch guns turrets superstructure heavy intermediate armament guns larger inches ship considered semi dreadnought secondary armament consisted caliber inch 41st year type guns mounted casemates sides hull ship equipped quick firing caliber pounder cwt guns caliber pounder guns addition battleship fitted submerged inch torpedo tubes broadside stern waterline main belt class vessels consisted krupp cemented armor maximum thickness inches amidships tapered thickness inches ends ship inch armor protected casemates barbettes main guns inches thick armor main gun turrets maximum thickness inches deck armor inches thick conning tower protected inches armor construction laid naval arsenal march launched april construction suspended months decision november install steam turbines armored cruiser turbines schedule suspension allowed valuable ship completed changes turbines testing incorporated turbines finally completed march captain operational history world war began august naval arsenal assigned 1st battleship squadron completion refit remained transferred 2nd battleship squadron seeing combat war december december commanded captain ship disarmed comply provisions stricken navy list converted target ship sunk battlecruiser battleship september tokyo bay inch gun turrets installed coastal artillery batteries island protect tokyo bay
Japanese battleship Aki