Japanese 38,000 tons 30 knots speed battleship design by Yasushi Taji in 1919

Ise. ©Warshipsresearch.blogspot.com.

38,000 tons battleship design.©Warshipsresearch.blogspot.com.

Nagato. ©Warshipsresearch.blogspot.com.

Deep load condition. Main armament 5x2-38.1cm/15”guns with suitable number of rounds. Displacement 38,000 tons and as dimensions 722.0 (between perpendiculars)-760.0 (on deep water line) x 94.0 x 34.0 feet. Speed 30 knots. Horsepower 126,000 shp.

Weights

Armaments 6,700 tons

Protection 9,000 tons

Equipment 1,000 tons

Oil fuel 3,500 tons

The Ise-class preceded by Fuso-class succeeded by Nagato-class, built between 1915-1918 had a normal displacement of 1,762 tons , dimensions 683 x 94 x 29.4 feet, main armament of 6x2-35,56cm/14” guns, horsepower 40,000-45,000 shp and a speed of 23 knots.

The Nagato-class preceded by Ise-class succeeded by planned Tosa-class built, between 1917-1921 had a displacement of 32,720 (standard)-39,116 (full load) tons, dimenions 708 (over all) x 95.3 x 29.9 feet, horsepower 80,000 ship and speed26.5 knots.

Source

Hiraga Archives. An article titeld “The mutual influence of speed, armament, and protection on the battleship design”, written by Constructor-Lieutenant Yasushi Taji, 1929