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Fleet Replenishment Oilers - T-AO

Fourteen fleet replenishment oilers are operated by Military Sealift Command and provide underway replenishment of fuel to U.S. Navy ships at sea and jet fuel for aircraft assigned to aircraft carriers. Three of the newest MSC underway replenishment oilers have double hulls.
There are stations on both sides of each ship for underway replenishment of fuel and stores.
Fitted with medium-speed diesel propulsion, the delivery of USNS Patuxent (T-AO 201), USNS Rappahannock (T-AO 204) and USNS Laramie (T-AO 203) was delayed by the decision to fit double hulls to meet the requirements of the Oil Pollution Act of 1990. This modification increased construction time from 32 to 42 months and reduced cargo capacity by 17 percent, although this can be restored in an emergency. Hull separation is 1.83 m at the sides and 1.98 m on the bottom.
Point Of Contact
MSC Public Affairs
471 East C. St.
Norfolk, VA 23511-2419
(757) 443-3984
General Characteristics, Henry J. Kaiser Class
Builder: Avondale Shipyards, Inc., New Orleans, LA.
Propulsion: 2 Colt-Pielstick 10 PC4.2 V 570 diesels; 34,442 hp(m) (24.3MW) sustained; 2 shafts; cp props.
Length: 677.5 feet (206.5 meters).
Beam: 97.5 feet (29.7 meters).
Displacement: 40,700 tons (41,353.16 metric ton); 42,000 tons (42,674.02 metric tons) [T-AO 201, 203-204] full load.
Speed: 20 knots (23 mph).
Crew: 89 civilian crew (19 officers); 6 Navy plus 29 spare.
Load: 180,000; 159,000 [T-AO 201, 203-204] barrels of fuel oil or aviation fuel.
Aircraft: Helicopter platform only.
Homeport: No homeports assigned.
USNS Henry J. Kaiser (T-AO 187), No homeport
USNS Joshua Humphreys (T-AO 188), No homeport
USNS John Lenthall (T-AO 189), No homeport
USNS Walter S. Diehl (T-AO 193), No homeport
USNS John Ericsson (T-AO 194), No homeport
USNS Leroy Grumman (T-AO 195), No homeport
USNS Kanawha (T-AO 196), No homeport
USNS Pecos (T-AO 197), No homeport
USNS Big Horn (T-AO 198), No homeport
USNS Tippecanoe (T-AO 199), No homeport
USNS Guadalupe (T-AO 200), No homeport
USNS Patuxent (T-AO 201), No homeport
USNS Yukon (T-AO 202), No homeport
USNS Laramie (T-AO 203), No homeport
USNS Rappahannock (T-AO 204), No homeport
Last Update: 23 February 2017
Photo: Military Sealift Command oiler USNS Yukon (T-AO 202)
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