USNS Walter S. Diehl

	USNS Walter S. Diehl (T-AO-193) in 2019
History
United States
Name	USNS Walter S. Diehl
Namesake	Walter Stuart Diehl (1893–1976), a U.S. Navy officer and American pioneer of aerodynamics and aircraft design
Ordered	28 June 1985
Builder	Avondale Shipyard, Inc., New Orleans, Louisiana
Laid down	7 August 1986
Launched	2 October 1987
Christened	10 October 1987
In service	13 September 1988
Out of service	1 October 2022
Identification	IMO number: 8511495; MMSI number: 367222000; Callsign: NWSD;
Fate	Scrapped
Status	Departed James River Reserve Fleet for scrapping, DEC 2024
General characteristics
Class & type	Henry J. Kaiser-class replenishment oiler
Type	Fleet replenishment oiler
Tonnage	31,200 deadweight tons
Displacement	9,500 tons light; Full load variously reported as 42,382 tons and 40,700 long tons (41,353 metric tons);
Length	677 ft (206 m)
Beam	97 ft 5 in (29.69 m)
Draft	35 ft (11 m) maximum
Installed power	16,000 hp (11.9 MW) per shaft; 34,442 hp (25.7 MW) total sustained;
Propulsion	Two medium-speed Colt-Pielstick PC4-2/2 10V-570 diesel engines, two shafts, controllable-pitch propellers
Speed	20 knots (37 km/h; 23 mph)
Capacity	178,000 to 180,000 barrels (29,000 m3) of fuel oil and jet fuel; 7,400 square feet (690 m2) dry cargo space; eight 20-foot (6.1 m) refrigerated containers with room for 128 pallets;
Complement	103 (18 civilian officers, 1 U.S. Navy officer, 64 merchant seamen, 20 U.S. Navy enlisted personnel)
Armament	Peacetime: .30 cal GPMG & .50 cal heavy machine guns; Wartime: ×1 (or more) 20-mm Phalanx CIWS;
Aircraft carried	None
Aviation facilities	Helicopter landing platform
Notes	Five refueling stations; Two dry cargo transfer rigs;

USNS Walter S. Diehl (T-AO-193) was a Henry J. Kaiser-class replenishment oiler of the United States Navy. She was named after Captain Walter Stuart Diehl, USN, a career naval officer and aeronautical engineer.

History
USNS Walter S. Diehl (T-AO-193) in 2019
United States
Name	USNS Walter S. Diehl
Namesake	Walter Stuart Diehl (1893–1976), a U.S. Navy officer and American pioneer of aerodynamics and aircraft design
Ordered	28 June 1985
Builder	Avondale Shipyard, Inc., New Orleans, Louisiana
Laid down	7 August 1986
Launched	2 October 1987
Christened	10 October 1987
In service	13 September 1988
Out of service	1 October 2022
Identification	IMO number: 8511495 MMSI number: 367222000 Callsign: NWSD
Fate	Scrapped
Status	Departed James River Reserve Fleet for scrapping, DEC 2024
General characteristics
Class & type	Henry J. Kaiser-class replenishment oiler
Type	Fleet replenishment oiler
Tonnage	31,200 deadweight tons
Displacement	9,500 tons light Full load variously reported as 42,382 tons and 40,700 long tons (41,353 metric tons)
Length	677 ft (206 m)
Beam	97 ft 5 in (29.69 m)
Draft	35 ft (11 m) maximum
Installed power	16,000 hp (11.9 MW) per shaft 34,442 hp (25.7 MW) total sustained
Propulsion	Two medium-speed Colt-Pielstick PC4-2/2 10V-570 diesel engines, two shafts, controllable-pitch propellers
Speed	20 knots (37 km/h; 23 mph)
Capacity	178,000 to 180,000 barrels (29,000 m³) of fuel oil and jet fuel 7,400 square feet (690 m²) dry cargo space; eight 20-foot (6.1 m) refrigerated containers with room for 128 pallets
Complement	103 (18 civilian officers, 1 U.S. Navy officer, 64 merchant seamen, 20 U.S. Navy enlisted personnel)
Armament	Peacetime: .30 cal GPMG & .50 cal heavy machine guns Wartime: ×1 (or more) 20-mm Phalanx CIWS
Aircraft carried	None
Aviation facilities	Helicopter landing platform
Notes	Five refueling stations Two dry cargo transfer rigs