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If you're meaning battleships, the most powerful ship is the Japanese Yamato Class Battleships. The Yamato and her sister ship Musashi both had a displacement of 72,809 tons. They had the most devastating naval armament of any ship. Their nine 18.1 inch guns had 3,000 pounds that could be fired 26.1 miles. Their armor ranged from 18-20 inches. They had a speed of 27 knots, just as fast as our North Carolina and South Dakota Class Battleships. They had another sister ship, the Shinano. However, she was converted into an aircraft carrier.

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14y ago

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