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GUPPY: The U.S. Navy Submarine Program That History Almost Forgot
Sparked by the effectiveness of German U-boats, GUPPY aimed to modernize American submarines, starting with reverse engineering German Type XXI U-boats. -The program, which ran from 1947 to 1963 ...
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Nazi submarine wreck off Denmark torpedoes theory that Hitler fled to Argentina
The submarine was one of Nazi Germany’s Type XXI U-boats, which could stay underwater for longer and travel further than their predecessors. Only two of 118 planned Type XXIs entered service ...