Japan Battleship
A pre-draft battleship project was developed in the mid-1930s in Japan. It included different versions with speeds varying from 24 to 31 knots, main battery guns from 410 to 460 mm, and displacements from 49,000 to 69,500 tons. One of the variants had a conventional superfiring arrangement of four turrets with three 410 mm guns in each, and its 155 mm guns were housed in triple-gun turrets. The project had a hybrid diesel and steam turbine propulsion plant. Further development led to the creation of the Yamato-class battleships.