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USNS Shearwater (T-AG-177)

United States
Name: USNS Shearwater
Namesake: Shearwater, a long winged seabird
Builder: Hickinbotham Brothers Construction Division at Stockton, California
Laid down: October 1944,[1] as U.S. Army FS-411 for the U.S. Army
Completed: in April 1945
Commissioned: 25 October 1944 as U.S. Army FS-411
In service: May 1964 as Survey Support Ship, USNS Shearwater (T-AG-177)
Out of service: February 1969
Struck: c. 1969
Fate: transferred to the U.S. Army; sunk as an artificial reef in 2015
General characteristics
Type: Design 381 coastal freighter
Tonnage: 381 tons
Tons burthen: 935 tons
Length: 165 ft
Beam: 32 ft
Draft: 14 ft 3 in
Propulsion: two 500 hp GM-Cleveland 6-298A diesel engines, twin screws
Speed: not known
Complement: 26 personnel

USNS Shearwater (T-AG-177) was a Shearwater-class miscellaneous auxiliary built during the final months of World War II for the US Army as FS-411 (Design 381 coastal freighter). FS-411 was Coast Guard manned operating in the Central and Western Pacific, including Hawaii, Saipan, TInian, Guam, during the closing days of the war.[2]

She was placed into service by the U.S. Navy from 1964 to 1969 as USNS Shearwater (T-AG-177). After this service, she was transferred back to the U.S. Army.

Operational history as T-AG-177

Shearwater began her naval service as a survey support ship with the Military Sea Transportation Service in May 1964. Operated by a Civil Service crew, she operated in the Atlantic Ocean until mid-February 1969, when she was transferred back to the U.S. Army.

As of 2007, Shearwater was active as a fishing vessel based out of Reedville, Virginia.[3] She was retired in 2013 and reefed off the coast of Delaware onto the Del-Jersey-Land Inshore Reef site in 2015.[4]


  1. ^ "U.S. Army Coastal Freighters (F, FS, T)".
  2. ^ "World War II Coast Guard-Manned U.S. Army Freight and Supply Ship Histories".
  3. ^ "Shearwater". ShipSpotting. Retrieved 25 December 2017.
  4. ^ "DelJerseyLand Reef - Inshore". New Jersey Scuba Diving. Retrieved 11 July 2019.