Patapsco-class gasoline tanker

The Patapsco class of gasoline tankers were a class of tankers built for the United States Navy during World War II. The class consisted of 23 tankers, designated AOG-1 through AOG-11, and AOG-48 to AOG-59. They served through the Korean War and several served in foreign navies.

USS Patapsco (AOG-1)
Class overview
Name	Patapsco class
Builders	Seattle-Tacoma Shipbuilding Corporation Cargill Inc.
Operators	United States Navy
Built	1942–1945
In commission	1943–1960s
Completed	23
Active	1 in commercial service as a fishing vessel
General characteristics
Type	Gasoline tanker
Displacement	1,850 long tons (1,880 t) light 4,130 long tons (4,196 t) full load
Length	310 ft 9 in (94.72 m)
Beam	48 ft 6 in (14.78 m)
Draft	15 ft 6 in (4.72 m)
Propulsion	4 × Cleveland Diesel 12-278A diesel-electric engines, twin shafts, 3,300 hp (2,461 kW)
Speed	15.5 knots (17.8 mph; 28.7 km/h)
Capacity	1,850 long tons (1,880 t) dwt
Complement	131
Sensors and processing systems	SC radar
Armament	4 × 3"/50 caliber guns 12 × 20 mm AA guns

Production

Many were built as Maritime Commission type T1-MT-M1 tanker hull, under a Maritime Commission contract, at Cargill, Inc., Savage, Minnesota.^[1]

Propulsion

Four 980 shaft horsepower (730 kW) Cleveland Diesel Engine Division 12-278A diesel-electric engines, single main reduction gears, two propellers, for a total 3,300 shp (2,500 kW).^[1]

Service

Various ships in the class served from World War II through the Vietnam War in various campaigns. Some were transferred to the Greek Navy and Taiwan. The last ones in U.S. service were decommissioned in July 1975.^[2] Taiwan decommissioned the last one, ROCS Chang Pei (AOG-517), in 2005.^[3]

Patapsco was converted into a fishing trawler after its naval service and renamed Arctic Storm. As of 2019 it is still active, and the only known surviving member of its class.^[1]

Ships

• Seattle-Tacoma Shipbuilding Corporation
  • USS Patapsco (AOG-1)
  • USS Kern (AOG-2)
  • USS Rio Grande (AOG-3)
  • USS Wabash (AOG-4)
  • USS Susquehanna (AOG-5)
• Cargill
  • USS Agawam (AOG-6)
  • USS Elkhorn (AOG-7)
  • USS Genesee (AOG-8)
  • USS Kishwaukee (AOG-9)
  • USS Nemasket (AOG-10)
  • USS Tombigbee (AOG-11)
  • USS Chehalis (AOG-48)
  • USS Chestatee (AOG-49)
  • USS Chewaucan (AOG-50)
  • USS Maquoketa (AOG-51)
  • USS Mattabesset (AOG-52)
  • USS Namakagon (AOG-53)
  • USS Natchaug (AOG-54)
  • USS Nespelen (AOG-55)
  • USS Noxubee (AOG-56)
  • USS Pecatonica (AOG-57)
  • USS Pinnebog (AOG-58)
  • USS Wacissa (AOG-59)