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USCGC Argo (WPC-100) underway during World War II, circa 1944.
Class overview
Name	Thetis class
Operators	United States Coast Guard
Built	1931–1934
In commission	1931–1967
Completed	18
General characteristics
Class and type	Thetis-class patrol boat
Displacement	337 long tons (342 t) (1933) 350 long tons (360 t) (1945)
Length	165 ft (50 m)
Beam	25 ft 3 in (7.70 m)
Draft	7 ft 8 in (2.34 m) (1933) 10 ft 0 in (3.05 m) (1945)
Installed power	1,340 bhp
Propulsion	2 × Winton Model 158 6-cylinder diesels 1,340 brake horsepower (1,000 kW)
Speed	11 kn (20 km/h; 13 mph) cruising 16 kn (30 km/h; 18 mph) maximum
Range	1,750 statute miles (14 knots) 3,000 statute miles (11 knots) 6,417 statute miles (6 knots)
Complement	44 (1933) 75 (1945)
Sensors and processing systems	None (1933 SF Radar (1945) QCO Sonar (1945)
Armament	1933 1 × 3 inch gun 1 × 1-pounder 1941 1 × 3 inch gun 1 × Y-gun 2 x depth charge tracks 1945 2 x single-mount 3"/50 caliber gun 2 x single mount 20mm/80 cannon 2 x depth charge tracks 2 x Y-guns 2 x Mousetraps

The Thetis-class patrol boat was a class of 18 steel-hulled cutters of the United States Coast Guard built from 1931 to 1934.

Ships

• USCGC Argo (WPC-100)
• USCGC Ariadne (WPC-101)
• USCGC Atalanta (WPC-102)
• USCGC Aurora (WPC-103)
• USCGC Calypso (WPC-104)
• USCGC Cyane (WPC-105)
• USCGC Daphne (WPC-106)
• USCGC Dione (WPC-107)
• USCGC Electra (WPC-187)
• USCGC Galatea (WPC-108)
• USCGC Hermes (WPC-109)
• USCGC Icarus (WPC-110)
• USCGC Nemesis (WPC-111)
• USCGC Nike (WPC-112)
• USCGC Pandora (WPC-113)
• USCGC Perseus (WPC-114)
• USCGC Thetis (WPC-115)
• USCGC Triton (WPC-116)

References

1. "USCGC Atalanta". naval-history.net. Retrieved March 20, 2020.
2. Dropkin, Les (January 2002). "The Thetis Class Coast Guard Patrol Boats" (PDF). Potomac Association. Archived from the original (PDF) on July 11, 2019.
3. Clancey, Patrick. "Ships of the U.S. Navy, 1940-1945 Coast Guard Cutters & Craft". HyperWar Foundation via Ibiblio. Retrieved March 20, 2020.

v t e Thetis-class patrol boats
United States Coast Guard	Argo Ariadne Atalanta Aurora Calypso Cyane Daphne Dione Galatea Hermes Icarus Nemesis Nike Pandora Perseus Thetis Triton Electra
United States Navy	Potomac (ex-Electra) Calypso
Dominican Navy	Restauración (ex-Galatea) Independencia (ex-Icarus) Rafael Atoa / Libertad (ex-Thetis)
Preceded by: Lake class Followed by: Algonquin class
List of cutters of the United States Coast Guard

• Thetis-class patrol boats
• Ships of the United States Coast Guard
• World War II patrol vessels of the United States