number class battleship number class battleship planned class fast battleships built imperial_japanese_navy 1920s ships received names known numbers intended reinforce japan fleet battleships battlecruisers united_states announced major naval construction program number class designed superior existing battleships planned building signing cancelled november construction begin design background navy gained approval fleet ships years old having large battleships battlecruisers order enormous financial strain japan spending national budget navy despite gained approval plan american president announced plans initiate plan additional battleships battlecruisers japanese response required construction additional fast battleships number classes designing class japanese followed doctrine sino japanese war superiority words naval historian ships completed world largest powerful battleships gun calibre caused new intensive naval arms race engineering aspect years ahead time anticipated characteristics fully developed fast battleship naval architects saying ships completely european battleship number class designed captain naval architect responsible previous japanese capital ships ships based previous class battleship class battlecruiser designs enlarged millimeter guns description ships length meters perpendiculars meters overall beam meters draft meters normal displacement battleships metric tons long tons class intended equipped geared steam turbines drove propeller shaft turbines designed produce total shaft horsepower steam provided oil fired water tube boilers reach maximum speed knots mph primary armament number class caliber millimeter guns twin gun turrets fore aft superstructure examples gun built planned fire kilogram shell muzzle velocity meters second secondary battery consisted single caliber centimeter guns mounted casemates superstructure manually operated guns maximum range meters elevation fired rate rounds minute ships anti aircraft defenses consisted single caliber centimeter 10th year type anti aircraft guns mounted single funnel guns maximum elevation maximum rate fire rounds minute fire kilogram muzzle velocity maximum height meters number class designed centimeter water torpedo tubes broadside waterline armor belt intended maximum thickness millimeters like class angled increase ability resist penetration short range deck armor total thickness millimeters construction end world war united_kingdom united_states announced large capital ship building programs incorporating design lessons war ships larger expensive earlier vessels president called conference washington late expensive arms race attendees conference agreed limit capital ship construction decade scrapped large numbers existing ships ships construction japan suspended number class conference progress ship laid formally cancelled november construction ships scheduled begin completed allocated specific shipyards number number number
Number 13-class battleship