Displacement: 1,975 tons
Length: 322 ft 5 in (98 m)
Beam: 27 ft 4 in (8.3 m)
Draft: 16 ft (4.9 m)
Propulsion: four 5400 hp diesel engines; four 2740 hp (2.0 MW) electric motors; two propellers
Speed: 17.2 knots (31.85 km/h) surface; 14.5 knots (26.85 km/h) submerged (30 minutes)
Range: 15,900 nm (29,400 km) at 8.5 knots (15.7 km/h) on surface
Endurance: 36 hours at 3 knots (5.6 km/h) submerged
Complement: 8 officers, 72 enlisted
Armament: 10 x 21 in (533 mm) torpedo tubes, (6 forward, 4 aft), 24 torpedoes
Above specifications circa 1962 (GUPPY III)
The CLAMAGORE (SS-43) was built as a Balao-class submarine by Electric Boat Co., Groton, CT. Commissioned too late to see action in World War II, CLAMAGORE would serve the next 30 years during the Cold War. In 1948, CLAMAGORE underwent GUPPY II conversion to improve underwater performance. GUPPY was the term used by the Navy for its Greater Underwater Propulsion Program.
CLAMAGORE was one of only nine submarines converted to GUPPY III (1962-63). A 15 foot (55 ton) section was added (forward of the control room) to accommodate upgrades in technology. This would be the ultimate upgrade for World War II era diesel-powered submarines. CLAMAGORE was decommissioned in June 1975.
Added to the Patriots Point fleet in 1981, CLAMAGORE is the only GUPPY III submarine preserved in the United States. In 1989, CLAMAGORE was designated a National Historic Landmark.
For more information, please visit the HNSA listing for the CLAMAGORE, and the Clamagore Association.
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The USS Yorktown is nearly 900 feet in length, weighing in at more than 27,000 tons.
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