PEARL HARBOR–EXECUTION OF THE ATTACK I

In December 1939, the U.S. military established an Aircraft Warning Service (AWS) using radar to defend American territory. It employed the SCR-270 radar, the first United States long-range search radar created at the Signal Corps laboratories at Fort Monmouth, New Jersey, circa 1937. The radar’s operating frequency was 106 megahertz and it had a maximum […]

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PEARL HARBOR–EXECUTION OF THE ATTACK II

Each shotai (for this attack, increased to four aircraft instead of the normal three) would normally remain together, but each plane commander (who could be the pilot, navigator, or radioman/gunner, depending upon who was senior) had the authority to alter the target. Some overruled the decision of their shotai leaders. Matsumura and his radioman searched […]

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PEARL HARBOR–EXECUTION OF THE ATTACK III

Success The torpedo bombers quickly achieved the planners’ hopes to sink at least one battleship. Oklahoma capsized. West Virginia, with a more advanced internal torpedo defense system and benefiting from prompt counterflooding by alert junior officers and petty officers, was saved from a similar fate, eventually settling on the bottom on an even keel. California’s […]

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