USS CLAMAGORE (SS-343)
Class: Balao Submarine
Launched: February 25, 1945
At: Electric Boat Company, Groton, Connecticut
Modified: 1947 and 1962 (Guppy III)
Commissioned: June 28, 1945
Length:(original) 311 feet, 8 inches; (Guppy III) 325 feet, 6
The Balao class submarine Clamagore is one of many fleet submarines built during World War II for the U.S. Navy. Clamagore was a typical fleet boat designed and constructed as part of a major program of submarine construction following the Japanese attack on Pearl Harbor. The submarine warfare pursued by the United States and supported by this construction program was instrumental in securing the American victory in the Pacific.
After VJ Day, some of these submarines were modified to embody the lessons learned during the conflict. Arriving too late to serve in combat in World War II, Clamagore was modified in 1947 and again in 1962 into a FRAM II/GUPPY III submarine. The modifications to Clamagore included a snorkel and a lengthened pressure hull to accommodate updated sonars and fire control systems. One of only nine boats converted to a Guppy III configuration, and the sole survivor of these vessels, Clamagore represents the continued adaptation and use of war-built diesel submarines by the Navy for the first two decades of the Cold War. The Guppy submarines, like Clamagore, comprised the bulk of the United States submarine force through the mid-1960s.
Clamagore is displayed along with the aircraft carrier Yorktown, and destroyer Laffey.
USS Clamagore is a National Historic Landmark.