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![]() USNS Walter S. Diehl (T-AO-193) in 2019 | |
History | |
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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 [1] |
Identification |
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Status | out of service, in reserve |
General characteristics | |
Class and type | Henry J. Kaiser-class replenishment oiler |
Type | Fleet replenishment oiler |
Tonnage | 31,200 deadweight tons |
Displacement |
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Length | 677 ft (206 m) |
Beam | 97 ft 5 in (29.69 m) |
Draft | 35 ft (11 m) maximum |
Installed power |
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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 |
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Complement | 103 (18 civilian officers, 1 U.S. Navy officer, 64 merchant seamen, 20 U.S. Navy enlisted personnel) |
Armament |
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Aircraft carried | None |
Aviation facilities | Helicopter landing platform |
Notes |
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USNS Walter S. Diehl (T-AO-193) is 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.
The Henry J. Kaiser-class replenishment oilers were preceded by the shorter Cimarron-class fleet replenishment oilers. Walter S. Diehl has an overall length of 206.5 metres (677 ft 6 in) and a beam of 29.7 metres (97 ft), with a draft of 11 metres (36 ft). The oiler has a displacement of 41,353 tonnes (40,700 long tons; 45,584 short tons) at full load. It has a capacity of 180,000 imperial barrels (29,000,000 L; 6,500,000 imp gal; 7,800,000 US gal) of aviation fuel or fuel oil. She can carry a dry load of 690 square metres (7,400 sq ft) and can refrigerate 128 pallets of food. The ship is powered by two 10 PC4.2 V 570 Colt-Pielstick diesel engines that drive two shafts; this gives a power of 25.6 megawatts (34,800 PS; 34,300 shp). [2]
The Henry J. Kaiser-class oilers have maximum speeds of 20 knots (37 km/h; 23 mph). They were initially built without armaments, but are equipped with small arms and can be fitted with close-in weapon systems if required. The ship has a helicopter platform but not any maintenance facilities. Walter S. Diehl is fitted with five fuelling stations; these can fill two ships at the same time and the ship is capable of pumping 900,000 US gallons (3,400,000 L; 750,000 imp gal) of diesel or 540,000 US gallons (2,000,000 L; 450,000 imp gal) of jet fuel per hour. She has a complement of 89 civilians (nineteen officers), 29 spare crew, and 6 United States Navy crew. [2]
Walter S. Diehl, the seventh ship of the Henry J. Kaiser-class, was laid down at Avondale Shipyard, Inc., at New Orleans, Louisiana, on 7 August 1986 and launched on 2 October 1987. She entered non-commissioned U.S. Navy service under the control of the Military Sealift Command with a primarily civilian crew on 13 September 1988.
Walter S. Diehl was assigned to the United States Pacific Fleet, serving in the Pacific Ocean, Indian Ocean, and Persian Gulf regions.
On 23 April 2002, Walter S. Diehl was passing through the Strait of Hormuz when six small motorboats sped alongside in an aggressive and threatening manner. Walter S. Diehl fired flares to warn the boats off, but they did not move away. She then opened fire with a .50-caliber (12.7-mm) machine gun and the boats sped off.
On 20 November 2014, Walter S. Diehl collided with the USNS Amelia Earhart (T-AKE-6) during an underway replenishment operation. No injuries were reported. [3]
She was taken out of service and placed in reserve on 1 October 2022. [1]
USNS Yukon (T-AO-202) is a Henry J. Kaiser-class underway replenishment oiler operated by the Military Sealift Command to support ships of the United States Navy.
A replenishment oiler or replenishment tanker is a naval auxiliary ship with fuel tanks and dry cargo holds which can supply both fuel and dry stores during underway replenishment (UNREP) at sea. Many countries have used replenishment oilers.
The Henry J. Kaiser class is an American class of eighteen fleet replenishment oilers which began construction in August 1984. The class comprises fifteen oilers which are operated by Military Sealift Command to provide underway replenishment of fuel to United States Navy combat ships and jet fuel for aircraft aboard aircraft carriers at sea. One ship, operated by the United States from 1987 to 1996, was sold to Chile in 2009 and commissioned into the Chilean Navy in 2010; and two ships were scrapped in 2011 while still incomplete.
USNS Rappahannock is a Henry J. Kaiser-class underway replenishment oiler operated by the Military Sealift Command to support ships of the United States Navy.
USNS John Ericsson (T-AO-194) is a Henry J. Kaiser-class underway replenishment oiler operated by the Military Sealift Command to support ships of the United States Navy.
USNS Guadalupe (T-AO-200) is a Henry J. Kaiser-class underway replenishment oiler operated by the Military Sealift Command to support ships of the United States Navy.
USNS Tippecanoe (T-AO-199) is a Henry J. Kaiser-class underway replenishment oiler operated by the Military Sealift Command (MSC) to support ships of the United States Navy. She serves in the United States Pacific Fleet. Tippecanoe, the thirteenth ship of the Henry J. Kaiser class, was laid down at Avondale Shipyard, Inc., at New Orleans, Louisiana, on 19 November 1990 and launched on 16 May 1992. She entered non-commissioned U.S. Navy service under the control of the MSC with a primarily civilian crew on 8 February 1993.
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USNS Henry Eckford (T-AO-192) was a Henry J. Kaiser-class fleet replenishment oiler of the United States Navy. She was never completed.
USNS Kanawha (T-AO-196) is a Henry J. Kaiser-class fleet replenishment oiler of the United States Navy in non-commissioned service in the Military Sealift Command.
USNS Benjamin Isherwood (T-AO-191) was a Henry J. Kaiser class fleet replenishment oiler of the United States Navy. She was never completed.
USNS Henry J. Kaiser (T-AO-187) is a United States Navy fleet replenishment oiler and the lead ship of her class. Her mission is to resupply U.S. Navy and allied ships at sea with fuel oil, jet fuel, lubricating oil, potable water, and dry and refrigerated goods, including food and mail.
USNS Leroy Grumman (T-AO-195) is a Henry J. Kaiser-class replenishment oiler of the United States Navy.
USNS Big Horn (T-AO-198) is a Henry J. Kaiser-class replenishment oiler of the United States Navy.
USNS Patuxent (T-AO-201) is a Henry J. Kaiser-class underway replenishment oiler operated by the Military Sealift Command to support ships of the United States Navy.
USNS Laramie (T-AO-203) is a Henry J. Kaiser-class underway replenishment oiler operated by the Military Sealift Command to support ships of the United States Navy.
The Naval Fleet Auxiliary Force is a division of the US Navy. The 42 ships of the Military Sealift Command's Naval Fleet Auxiliary Force are the supply lines to U.S. Navy ships at sea. These ships provide virtually everything that Navy ships need, including fuel, food, ordnance, spare parts, mail and other supplies. NFAF ships enable the Navy fleet to remain at sea, on station and combat ready for extended periods of time. NFAF ships also conduct towing, rescue and salvage operations or serve as floating medical facilities. All NFAF ships are government owned and crewed by civil service mariners. Some of the ships also have a small contingent of Navy personnel aboard for operations support, supply coordination and helicopter operations.
USNS John Lewis (T-AO-205) is a United States Navy replenishment oiler and the lead ship of her class. She is part of the Military Sealift Command fleet of support ships.
The John Lewis class is a class of fleet replenishment oilers which began construction in September 2018. The class will comprise twenty oilers which will be operated by Military Sealift Command to provide underway replenishment of fuel and limited amounts of dry cargo to United States Navy carrier strike groups, amphibious ready groups, and other surface forces to allow them to operate worldwide.