|USS Ponaganset (AO-86)|
|Builder:||Marinship, Sausalito, California|
|Laid down:||27 April 1942|
|Launched:||10 July 1943|
|Commissioned:||15 May 1944|
|Decommissioned:||26 April 1946|
|Struck:||23 April 1947|
|2 battle stars (World War II)|
|Fate:||Sold for scrap, 7 January 1949.|
|Type:||Suamico-class fleet replenishment oiler|
5,782 long tons (5,875 t) light|
22,380 long tons (22,739 t) full
|Length:||523 ft 6 in (159.56 m)|
|Beam:||68 ft (21 m)|
|Draft:||30 ft 10 in (9.40 m)|
|Propulsion:||Turbo-electric, single screw, 8,000 hp (5,966 kW)|
|Speed:||15.5 knots (28.7 km/h; 17.8 mph)|
|Capacity:||140,000 barrels (22,000 m3)|
|Complement:||267 to 300|
• 1 × 5"/38 caliber gun|
• 4 × 3"/50 caliber guns
• 4 × twin 40 mm AA guns
• 4 × twin 20 mm AA guns
USS Ponaganset AO-86/AOG-86) was an Suamico-class fleet oiler, of the T2-SE-A2 tanker hull type, serving in the United States Navy during World War II. Laid down on 27 April 1942, she was named for the Ponaganset River located in Foster and Glocester, Rhode Island. Ponaganset was launched on 10 July 1943 after being built at Marinship, Sausalito, California, under Maritime Commission contract MC 1265. Sponsored by Mrs. J.W. Fowler, the ship was commissioned by the US Navy on 15 May 1944, and reported to the Pacific Fleet on 25 June 1944.
World War II, 1944–1946
After shakedown off the west coast, Ponaganset arrived at Pearl Harbor on 17 July, and made a water run to Eniwetok and back before departing again on transporting potable water duties for Guadalcanal, Manus, Kossol, Ulithi, Peleliu, and Saipan, reaching Leyte on 22 March 1945.
The problem of getting fresh water to the smaller ships which did not have distilling apparatus became increasingly acute as the fleet moved westward. Large combatant ships and auxiliaries were ordered to issue water to small craft needing it, but demands could not be met solely in this way. The newly commissioned fleet oilers Ocklawaha and Ponaganset were used to carry potable water to ships and bases in the forward area.
Water was available at a number of points in the South Pacific for the 3rd Fleet, and in the Southwest Pacific for the Morotai Operation Interlude forces. It was likewise available on certain harbor craft in the Marshalls. At Manus, where 2,000,000 US gallons (7,600 m3) a day, filtered and chlorinated, were available, it could be obtained after 1 September for both 3rd Fleet and Southwest Pacific forces. Besides the shore facilities at Manus, the barges YO-186, with 55,000 barrels (8,700 m3), and YW-90, with 280,000 US gallons (1,100 m3), were sent to Captain Ogden from Eniwetok late in August. They had been filled from the Ponaganset and from surplus in ships returning to Pearl. In the South Pacific area where most of the amphibious forces were serviced, the naval base at Tulagi estimated that, between 15 August and 1 September, 20,917,000 US gallons (79,180 m3) of water was supplied to LSTs, LCIs, and small craft. No figures are available for Guadalcanal, but that base supplied water in tremendous quantities to the ships and troops which staged in that area.
The Ponaganset, with 90,000 barrels (14,000 m3) of water, reached Eniwetok on 2 August, discharged cargo, and returned to Pearl to reload. With a fresh 90,000 barrels (14,000 m3) aboard, she was ordered to Guadalcanal to take part in the logistic preparations of the amphibious forces. From 27 August to 4 September she discharged fresh water to various harbor and patrol craft.
In April she carried water to the task force off Okinawa, returning there during each of the next three months while moving around the western Pacific touching at Ulithi, Guam, and Leyte where she was to be found at the war's end. She then steamed to Ulithi, the Marianas, and Okinawa, before reaching Wakayama, Japan 26 September. She operated at various Japanese ports until steaming for San Francisco, arriving 5 January 1946. She then transited the Panama Canal, and arrived 18 February 1946 at her new home yard of New York.
Ponaganset decommissioned on 26 April 1946 and was struck from the Navy List on 23 April 1947. She was returned to the Maritime Commission for disposal at Norfolk on 15 May 1947. In 1947 Ponaganset fractured into two sections while tied at dockside in Boston:
The source of the fracture was an arc strike located at the toe of a fillet weld that joined a chock in the deck. ... The presence of the sharp cracks in the arc strike located in a region of high residual stress resulting from the fillet weld provided the necessary conditions for fracture initiation at temperatures below the NDT. As indicated by the fracture analysis diagram, the failure temperature was 15°F below the NDT temperature of the source plate. The steel was typical of the World War II production material which features relatively high carbon and low manganese contents.—U.S. Naval Research Laboratory report 5920
On 2 March 1948 the vessel was reacquired by the navy "as is where is". On 2 June 1948 title was transferred back to the Maritime Commission at the Boston Naval Shipyard on 30 June 1948. She was sold for scrap to Northern Metal Company on 7 January 1949.
Ponaganset earned two battle stars for World War II service.
- Carter, Worrall Reed (1953). "Chapter XX; The Philippines Campaign; Forces and Vessels--Logistic Support of the Seventh Fleet--Battle of Leyte Gulf". Beans, bullets, and black oil; the story of fleet logistics afloat in the Pacific during World War II. Washington, D.C.: Department of the Navy. p. 243. OCLC 781884. http://ibiblio.net/hyperwar/USN/BBBO/BBBO-20.html. Retrieved 2007-11-30.
- This article incorporates text from the public domain Dictionary of American Naval Fighting Ships. The entry can be found here.
- HyperWar's USS Ponaganset (AO-86) page
- US Naval Research Laboratory report 5920 on USS Ponaganset sinking at disastercity.info
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