USS Chain

History
United States
Builder	Basalt Rock Company
Laid down	date unknown
Launched	3 April 1943
Commissioned	USS Chain (ARS-20), 31 March 1944
Decommissioned	9 November 1946
In service	USNS Chain (T-AGOR-17) during 1958
Out of service	Unknown
Stricken	30 December 1977
Identification	IMO number: 7738515
Fate	Scrapped, June 1979
General characteristics
Tonnage	1,441 tons
Displacement	1,630 tons
Length	213 ft 6 in (65.07 m)
Beam	39 ft (12 m)
Draught	14 ft 4 in (4.37 m)
Propulsion	diesel-electric, twin screws, 2,780hp
Speed	15 knots
Complement	120
Armament	four 40 mm guns, four 0.5 in (12.7 mm) machine guns

USS Chain (ARS-20/T-AGOR-17) was a Diver-class rescue and salvage ship commissioned by the U.S. Navy during World War II. Her task was to come to the aid of stricken vessels.

Chain (ARS 20) was launched 3 June 1943 by Basalt Rock Company in Napa, California; sponsored by Mrs. P. F. Roach; and commissioned 31 March 1944.

Chain sailed from San Diego, California on 14 May 1944, bound for the Panama Canal, and Trinidad, which she reached 2 June. She towed barge YF-324 to Recife, Brazil, where on 2 July she joined the U.S. 4th Fleet for operations as tug and salvage ship from Recife and Bahia, Brazil, until 18 June 1945, when she cleared Recife for Norfolk, Virginia. Her essential support played an important, if humble, part in enabling the 4th Fleet to carry out its mission of protecting the South Atlantic Ocean.

After overhaul and training at Norfolk, on 22 September 1945 Chain cleared for Key West, Florida, where she made rendezvous with three Italian submarines. Sailing east, her little convoy was enlarged by four additional Italian submarines at Bermuda, and she arrived at Taranto, Italy, with her charges 3 November. Chain returned by way of Palermo, Sicily, where she took barge YF-445 in tow,^[1] to Charleston, South Carolina, arriving 31 December 1945.

Chain operated along the U.S. East Coast, towing barges and decommissioned ships until she grounded in Block Island Sound 29 March 1946. Quickly floated by Coast Guard Cutter Dix, Chain's bottom was heavily damaged, and from 3 April until 25 June, she was repaired at New London, Connecticut.

She left New London astern 25 June, steaming to Orange, Texas, where she was decommissioned and placed in reserve 9 November 1946.

She was assigned to the Military Sea Transportation Service (MSTS) in 1958, and reclassified Oceanographic Research Ship USNS Chain (T-AGOR-17). She was operated by the Woods Hole Oceanographic Institute as one of the University-National Oceanographic Laboratory System research vessels.^[2]

Chain was struck from the Naval Register on 30 December 1977 and scrapped in June 1979.

 This article incorporates text from the public domain Dictionary of American Naval Fighting Ships. The entry can be found here.

• Photo gallery of Chain at NavSource Naval History
• [1] Basalt Rock Company Shipbuilding History