War and Military Atlas

How Battles Were Fought
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G7a Torpedo

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The G7a was a German steam-powered torpedo introduced by the Kriegsmarine in 1934, burning decaline fuel in a wet-heater engine to reach 7,500 meters at 40 knots. It was the standard torpedo for German U-boats and surface torpedo vessels from 1934 until the end of the Second World War, though electric torpedoes began supplementing it from 1942 onward.

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