Mark 27 torpedo
The Mark 27 torpedo was the first of the United States Navy
United States Navy
The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...

19-inch (48-cm) submarine-launched torpedoes. This electrically propelled torpedo was 125 inches (3.175 m) long and weighed 1174 pounds (534 kg). The torpedo employed a passive acoustic guidance system and was intended for both submarine and surface targets. Nicknamed "Cutie" by submarine crews, the Mark 27 entered service in 1944. The torpedo was classified as obsolete in the 1960s.
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