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The Japanese invented a air dropped torpedo with wooden fins that permitted it to work in shallow water. Most torpedoes dropped from planes go several feet under water before they level off. The new torpedoes with wooden fins were able to operate in the shallow water of Pearl Harbor and sink (or damage) many ships. Early bombs dropped from planes were not as accurate at hitting a ship as torpedoes, so torpedoes were the preferred method of attacking ships early in WWII.

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14y ago

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