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U.S. antiaircraft artillerymen training with M7 director system for controlling antiaircraft batteries, during World War II.
Sequence begins with views of German He-111 bombers in formation,during World War 2. Scene shifts to Squad of U.S. antiaircraft artillerymen surrounding a Sperry Gyroscope M7 director system control unit, in a sand-bagged position, as they train in the United States. View of a single He-111 is inserted. Battery of U.S. 90mm antiaircraft guns is seen firing under guidance of M7 director system. Scene shifts to a German Me-110 aircraft maneuvering evasively through flak bursts from antiaircraft guns, somewhere in Europe, during World War 2. Scene shifts again, back to Narrator describing operator actions in using M7 control unit, as it is shown in images. Location: United States. Date: 1943.
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