U.S.T. Atlantic-class supertanker

Class overview
NameU.S.T. Atlantic class
BuildersNewport News Shipbuilding
OperatorsInterocean Management Inc.
Built1978–1979
In service1979–present
Planned3
Completed2
Cancelled1
Active1
Scrapped1
General characteristics
TypeULCC MA design--T11-S-116a
Tonnage
  • 189,417 GT
  • 171,126 NT
  • 404,531 DWT
Displacement
Length
  • LOA: 362.14 m (1,188 ft 1 in); Cidade de Macae 420 m (1,377 ft 11 in)
  • LBP: 348.40 m (1,143 ft 1 in)
Beam69.49 m (228 ft 0 in)
Draught22.810 m (74 ft 10.0 in)
Depth28.96 m (95 ft 0 in)
Propulsion
Speed15.5 kn (28.7 km/h; 17.8 mph)

The U.S.T. Atlantic class is a class of Ultra Large Crude Carriers (ULCC) comprising two ships, U.S.T. Atlantic and U.S.T. Pacific. A third vessel in the class was canceled before construction began. They were the largest ships ever built in the Western Hemisphere. Built by Newport News Shipbuilding, the only American shipbuilders with the facilities for ULCC construction, the two ships were constructed in 1978–1979. At full load, the ships drew nearly 75 feet (22.86 m) and were unable to visit any ports in the continental United States, unless lightered or light ship.