![]() This difference in main weaponry together associated with a somewhat different turret carrying them resulted a net increase in displacement by 800tons to 29.800tons. Speed: Unknown, likely 44-46km/h (24-25knots)Ĥx2 406mm/40 (16"/40) Vickers Mark A Cannons,ġ6x1 152mm/50 (6"/50) Vickers Mark S Guns,ġ6x1 76mm/40 (3"/40) Vickers Mark N Guns,ĭesign 646A was a slight modification of the baseline design 646 using 406mm/44 cannons (16"/44) rather the shorter /40 calibre one. The design had the following characteristics:ĭimensions: 184,4 (pp) x 28,65 x 8,7 meters As a basis for the drawing I've chosen a modified and lengthened Queen Elizabeth class battleship with some alterations on the bridge and mainmasts as well as of course 16" armed turrets. Norman Friedman mentions and provides some data for this proposal in his book: The British Battleship 1906-1946. It is very likely that these proposals heavily influenced the creation of the Nagato class battleships, both in size, speed and armament! Other noteworthy feature the relative high speed of these proposals, outmatching any battleships of the time and reaching the same values as the first generation battlecruisers like the Invincible class. Norman Friedman briefly mentions these offers with some info on dimensions and armament: 4 twin 16" turrets, 16x 6" secondary guns, 8 submerged torpedo tubes and other guns as on the Kongo eg 16x 3" guns. Designs 646 and 647 were 16"/40 while the "A" sub variants were 16"/44 armed proposals. Before the first known Japanese design: A-102 which could be connected to the Nagato class in 1915/16 was born, the famous British ship building firm Vickers offered four proposals to the Imperial Japanese Navy in 1913 armed with 16" cannons: Designs 646,646A,647 and 647A. The sentence being the Nagato class not only the first indeginiously designed Japanese Battleship or the first Battleship entirely designed by Yuzuru Hiraga is not accurate. The design history of the Japanese Nagato class battleships, the world's first and fastest 16"/410mm armed battleships is long, and only partially documented. ![]()
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