USS Cutlass

	USS Cutlass operating with the aircraft carrier USS Lake Champlain in 1962
History
United States
Name	Cutlass
Namesake	Cutlassfish
Builder	Portsmouth Naval Shipyard, Kittery, Maine
Laid down	22 July 1944
Launched	5 November 1944
Commissioned	17 March 1945
Decommissioned	15 April 1973
Stricken	15 April 1973
Fate	Transferred to Taiwan (Republic of China), 15 April 1973
Badge
Taiwan
Name	ROCS Hai Shih (SS-791)
Acquired	12 April 1973
Status	Active
General characteristics (As completed)
Class & type	Tench-class diesel-electric submarine
Displacement	1,570 tons (1,595 t) surfaced; 2,414 tons (2,453 t) submerged;
Length	311 ft 8 in (95.00 m)
Beam	27 ft 4 in (8.33 m)
Draft	17 ft (5.2 m) maximum
Propulsion	4 × Fairbanks-Morse Model 38D8-⅛ 10-cylinder opposed piston diesel engines driving electrical generators; 2 × 126-cell Sargo batteries; 2 × low-speed direct-drive Elliott electric motors; two propellers ; 5,400 shp (4.0 MW) surfaced; 2,740 shp (2.0 MW) submerged;
Speed	20.25 knots (38 km/h) surfaced; 8.75 knots (16 km/h) submerged;
Range	11,000 nautical miles (20,000 km) surfaced at 10 knots (19 km/h)
Endurance	48 hours at 2 knots (3.7 km/h) submerged; 75 days on patrol;
Test depth	400 ft (120 m)
Complement	10 officers, 71 enlisted
Armament	10 × 21-inch (533 mm) torpedo tubes; (6 forward, 4 aft); 28 torpedoes; 1 × 5-inch (127 mm) / 25 caliber deck gun; Bofors 40 mm and Oerlikon 20 mm cannon;
General characteristics (Guppy II)
Displacement	1,870 tons (1,900 t) surfaced; 2,440 tons (2,480 t) submerged;
Length	307 ft (93.6 m)
Beam	27 ft 4 in (7.4 m)
Draft	17 ft (5.2 m)
Propulsion	Snorkel added; Batteries upgraded to GUPPY type, capacity expanded to 504 cells (4 × 126 cell batteries);
Speed	Surfaced:; 18.0 knots (33.3 km/h) maximum; 13.5 knots (25.0 km/h) cruising; Submerged:; 16.0 knots (29.6 km/h) for ½ hour; 9.0 knots (16.7 km/h) snorkeling; 3.5 knots (6.5 km/h) cruising;
Range	15,000 nm (28,000 km) surfaced at 11 knots (20 km/h)
Endurance	48 hours at 4 knots (7 km/h) submerged
Complement	9–10 officers; 5 petty officers; 70 enlisted men;
Sensors &; processing systems	AN/BQS-4 active sonar; AN/BQR-2 passive sonar; Mk 106 torpedo fire control system;
Armament	10 × 21-inch (533 mm) torpedo tubes; (six forward, four aft); all guns removed;

USS Cutlass (hull number SS-478), renamed as ROCS Hai Shih (SS-791) since 1973, is a Tench-class submarine now in the service of the Republic of China Navy. She was the only ship of the United States Navy to be named for the cutlassfish, a long, thin fish found widely along the coasts of the United States and in the West Indies. Her keel was laid down by the Portsmouth Navy Yard on 10 July 1944. She was launched on 5 November 1944 sponsored by Mrs. R. E. Kintner, and commissioned on 17 March 1945 with Commander Herbert L. Jukes in command.

Decommissioned and struck from the U.S. naval register in 1973, Cutlass was transferred to the Republic of China Navy and renamed ROCS Hai Shih (SS-791). She is expected to remain in service until at least 2026, 53 years after she entered service with the ROC Navy and 82 years after she was first launched.