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Design A-150, [A] popularly known as the Super Yamato class, [B] was a planned class of battleships for the Imperial Japanese Navy.In keeping with longstanding Japanese naval strategy, the A-150s would have carried six 51-centimeter (20.1 in) guns to ensure their qualitative superiority over any other battleship they might face.
The Yamato-class battleships had primary armaments consisting of three 3-gun turrets mounting 46 cm (18.1 in)/45 caliber Type 94 naval guns – the largest guns ever fitted to a warship, [6] although they were officially designated as the 40 cm/45 caliber (15.9 in) Type 94 [52] – each of which weighed 2,774 tonnes for the complete mount. [53]
Their planners recognized Japan would be unable to compete with the output of U.S. naval shipyards should war break out, so the 70,000-ton [4] vessels of the Yamato class were designed to be capable of engaging multiple enemy battleships at the same time.
Between the 1890s and 1940s, the Imperial Japanese Navy (IJN) built a series of battleships as it expanded its fleet. Previously, the Empire of Japan had acquired a few ironclad warships from foreign builders, although it had adopted the Jeune École naval doctrine which emphasized cheap torpedo boats and commerce raiding to offset expensive, heavily armored ships.
The Yamato-class ships were the heaviest and most powerfully armed battleships ever constructed, [4] displacing almost 72,000 long tons (73,000 t) fully loaded and armed with nine 460-millimetre (18.1 in) main guns.
Class Displacement Main Battery Secondary Battery Complement Speed Ships in Class Ship Keel Laid Commissioned War Loss Yamato class: 64,170 tons 9 × 18-in. 12 × 6.1-in. 2,500 27.5 kn Yamato: Nov 1937 Dec 1941 Sunk by air attack during Operation Ten-Go Apr 1945 Musashi: Mar 1938 Aug 1942 Sunk at Battle of the Sibuyan Sea Oct 1944 Shinano: May 1940
Laid down in May 1940 as the third of the Yamato-class battleships, Shinano ' s partially complete hull was ordered to be converted to an aircraft carrier following Japan's disastrous loss of four of its original six fleet carriers at the Battle of Midway in mid-1942. The advanced state of her construction prevented her conversion into a fleet ...
Japanese battleships Yamato and Musashi, were a central element of Japan's "Decisive Battle" doctrine. The Decisive Battle Doctrine (艦隊決戦, Kantai Kessen, "naval fleet decisive battle") was a naval strategy adopted by the Imperial Japanese Navy prior to the Second World War.