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USNS Powhatan (T-ATF-166) at sea, 16 April 1981.
|Builders:||Marinette Marine Corporation|
|Preceded by:||Abnaki-class fleet ocean tug|
|Cost:||11.5–17.6 million USD (1980)|
|Type:||Fleet ocean tug|
|Length:||226 ft (69 m)|
|Beam:||42 ft (13 m)|
|Draft:||15 ft (4.6 m)|
|Installed power:||(4,280 hp (3,190 kW) sustained|
|Propulsion:||2 × General Motors EMD 20-645F7B diesel engines, two shafts; bow thruster, 300 hp (224 kW)|
|Speed:||14.5 knots (26.9 km/h; 16.7 mph)|
|Complement:||16 civilians plus 4 U.S. Navy personnel (communications unit)|
The Powhatan class of fleet ocean tugs consists of seven ships built for the United States Navy, operated by the Military Sealift Command by primarily civilian crews with the USNS designation. As of 2014, four ships are still active with the MSC.
Ships in class
- USNS Powhatan (T-ATF-166), in service 1979-1999. Sold to Turkey in 2008 as TCG Inebolu (A-590).
- USNS Narragansett (T-ATF-167), in service 1979-1999. Leased to commercial service.
- USNS Catawba (T-ATF-168), in service 1980-present.
- USNS Navajo (T-ATF-169), in service 1980-2016.
- USNS Mohawk (T-ATF-170), in service 1980-2005. In Inactive Reserve Fleet at Philadelphia, Pennsylvania.
- USNS Sioux (T-ATF-171), in service 1981-present.
- USNS Apache (T-ATF-172), in service 1981-present.