USNS John Lewis Conducts Builder’s Trials

USNS John Lewis Conducts Builder’s Trials
USNS John Lewis (NAVSEA Photo)
USNS John Lewis (T-AO 205), the first ship in the US Navy's John Lewis-class fleet oiler program, reached a new milestone on February 4th by conducting initial Builder's Trials.
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NAVSEA press release

USNS John Lewis (T-AO 205), the Navy’s lead ship of its new class of fleet replenishment oilers, conducted initial Builder’s Trials and returned to port, Feb. 4.

Builder’s Trials consist of a series of in-port and at-sea demonstrations that allow the Navy and the shipbuilder, General Dynamics National Steel, and Shipbuilding Company (NASSCO), to assess the ship’s systems and readiness prior to acceptance trials and delivery to the Navy.

“Ensuring readiness through sea trials is a crucial step to bringing this ship closer to fleet tasking. USNS John Lewis will provide the much-needed capability to the fleet as the primary fuel pipeline at sea. We are looking forward to getting the ship into the hands of Sailors and merchant mariners as another tool to support at-sea operations.”


John Lighthammer, Program Manager, Auxiliary and Special Mission Shipbuilding Program Office

The new John Lewis-class T-AOs will be operated by Military Sealift Command to provide diesel fuel and lubricating oil, and small quantities of fresh and frozen provisions, stores, and potable water to Navy ships at sea, and jet fuel for aircraft assigned to aircraft carriers. The new T-AOs will add capacity to the Navy’s Combat Logistics Force and become the cornerstone of the fuel delivery system.

NASSCO is currently in production on USNS Harvey Milk (T-AO 206), USNS Earl Warren (T-AO 207), and USNS Robert F. Kennedy (T-AO 208). The future USNS Lucy Stone (T-AO 209) and USNS Sojourner Truth (T-AO 210) are under contract.

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John Lewis-class main characteristics

USNS John Lewis (T-AO 205)
USNS John Lewis (T-AO 205). General Dynamics NASSCO picture
TypeFleet replenishment oiler
Displacement49,850 tons full load
Length746 ft (227.4 m)
Beam106 ft 5 in (32.4 m)
Draft33.5 ft (10.2 m) maximum
PropulsionTwo medium-speed Fairbanks-Morse MAN 12V48/60CR diesel engines, two shafts, propellers
Speed20 knots (37 km/h; 23 mph)
Endurance6,147 nmi (11,384 km; 7,074 mi)
Complement125 total
Electronic warfare
& decoys
AN/SLQ-25A Nixie torpedo countermeasures
ArmamentMultiple .50 caliber machine guns. Space, weight, and power reservations for Phalanx or SeaRAM CIWS
Aviation facilitiesHelicopter flight deck
UNREP capabilities:5 refueling stations
2 dry cargo transfer rigs

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