USS Ammonusuc, 1944 (AOG-23)

April 14, 2020 PRINT | E-MAIL

USS Ammonusuc, 1944 (AOG-23)

Builder: East Coast Shipyard, Bayonne, New Jersey

Length: 220' 6"

Beam: 37'

Draft: 17'

Displacement: 2,270 (fl)

Commissioned: 18 May 1944

Decommissioned: 4 June 1946

Disposition: Sold and refitted for merchant service.

Machinery: 720 hp diesel direct drive; single propeller

Top Speed: 10 knots

Complement: 62

Armament: 1 x 3"/50; 2 x 40mm; 3 x 20mm


USS Ammonusuc (AOG-23) was a Mettawee Class Navy gasoline tanker that was manned by a Coast Guard crew. She was commissioned on 18 May 1944 in New York. The new gasoline tanker was fitted out at the New York Navy Yard, Brooklyn, N.Y., and sailed on 11 August for Norfolk, Va., where she underwent a period of availability. The vessel returned to New York City on 5 September to take on a cargo of aviation gasoline and diesel oil and got underway in a convoy bound for Guantanamo Bay, Cuba. The ships weathered a hurricane before reaching Cuban waters safely on 17 September. Four days later, the tanker headed for the Canal Zone; and she reached Coco Solo on the 25th. After discharging her cargo, she transited the Panama Canal and reported for duty to Squadron 8, Service Force, Pacific Fleet. She sailed for San Diego, Calif., and arrived at that port on 12 October. After minor voyage repairs, the tanker shaped a course for Hawaii.

Ammonusuc arrived at Pearl Harbor on 6 November and, shortly thereafter, made a voyage to Johnston Island to carry several thousand barrels of aviation gasoline to facilities ashore there. She unloaded the cargo at Johnston Island and then returned to Hawaii in December. On the last day of 1944, the tanker sailed in a convoy for the Mariana Islands. Following stops at Kwajalein 2 and Eniwetok, the tanker reached Saipan on 11 February 1945. During the next seven months, she shuttled between Saipan and Iwo Jima delivering fuel oil and aviation gasoline in support of Army Air Force operations on that island.

Following the end of the fighting in mid-August, Ammonusuc carried medical supplies and other stores to working parties at Chichi Jima. She arrived back at Saipan on 8 January 1946. After repair work, she got underway for the west coast of the United States and reached San Francisco, Calif., on 8 March. The vessel then entered the shipyard at Colbert Boat Works, Stockton, Calif., for further repairs. Upon the completion of dock trials, she departed San Francisco Bay on 17 April in a convoy bound for the Canal Zone. Ammonusuc arrived at Balboa on 5 May, retransited the Panama Canal, and steamed independently toward New Orleans, La. She reached that port on 14 May and transferred her ammunition and stores ashore to the naval ammunition depot. After a period of final preparations,

Ammonusuc was decommissioned at New Orleans on 4 June 1946, and her name was struck from the Navy list on 23 April 1947. The ship was transferred to the Maritime Commission on 9 March 1948, was sold later that same year, and was refitted for service as a merchant vessel.


Cutter History File, Coast Guard Historian's Office.

Dictionary of American Naval Fighting Vessels