Underway Replenishment Oilers - T-AO

Description: Fifteen underway replenishment oilers are operated by Military Sealift Command to provide underway replenishment of fuel to Navy combat ships and jet fuel for aircraft aboard aircraft carriers at sea. Three MSC oilers are equipped with reinforced double hulls.

Features: There are stations on both sides of each ship for underway replenishment of fuel and stores.

Background: Underway replenishment oilers USNS Patuxent (T-AO 201), USNS Rappahannock (T-AO 204) and USNS Laramie (T-AO 203) are equipped with double hulls to meet the requirements of the Oil Pollution Act of 1990. Hull separation is 1.83 m at the sides and 1.98 m on the bottom.

Point of contact:
   Public Affairs Office
   Military Sealift Command
   914 Charles Morris Court SE
   Washington Navy Yard, D.C. 20398-5540
   (202) 685-5055 or www.msc.navy.mil

General Characteristics: Henry J. Kaiser Class
Builder: Avondale Shipyards, Inc., New Orleans, La.
Power Plant: Two Colt-Pielstick 10 PC4.2 V 570 diesels; 34,442 hp(m) (25.7MW) sustained; Two shafts; cp props
Length: 677.5 feet (206.5 meters)
Beam: 97.5 feet (29.7 meters)
Displacement: 40,700 long tons (41,353 metric tons) light; 42,000 long tons (42,674 metric tons) [T-AO 201, 203-204] full load
Capactiy: 180,000; 159,000 [T-AO 201, 203-204] barrels of fuel oil or aviation fuel
Speed: 20 knots (23 mph)
Aircraft: Helicopter platform only
Ships: No homeports assigned
   USNS Henry J. Kaiser (T-AO 187)
   USNS Joshua Humphreys (T-AO 188)
   USNS John Lenthall (T-AO 189)
   USNS Walter S. Diehl (T-AO 193)
   USNS John Ericsson (T-AO 194)
   USNS Leroy Grumman (T-AO 195)
   USNS Kanawha (T-AO 196)
   USNS Pecos (T-AO 197)
   USNS Big Horn (T-AO 198)
   USNS Tippecanoe (T-AO 199)
   USNS Guadalupe (T-AO 200)
   USNS Patuxent (T-AO 201)
   USNS Yukon (T-AO 202)
   USNS Laramie (T-AO 203)
   USNS Rappahannock (T-AO 204)
Crew: Crew size varies from 66 to 89 civilian mariners, and seven to 24 military personnel per ship.

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