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Identification Numbered Vessel Photo Archive

Westchester (ID 3122)

Civilian call sign (1919):
Love - Jig - Tare - Boy


  • Laid down 2 April 1917 as War Ally by the Northwest Steel Co., Portland, OR for the U.S. Shipping Board (USSB)
  • Renamed Westchester prior to completion
  • Launched 5 December 1917 and sponsored by Miss C. Ainsworth
  • Delivered 19 March 1918
  • Acquired by the Navy 9 August 1918
  • Commissioned USS Westchester (ID 3122), 10 August 1918
  • Decommissioned 25 April 1919 and returned to the USSB
  • Abandoned in 1933.


  • Displacement 12,185 t.
  • Length 423' 9"
  • Beam 54'
  • Depth of hold 29' 9"
  • Draft 24'
  • Speed 11.5 kts.
  • Complement 70
  • Armament: One 6"/40 mount and one 6-pounder
  • Propulsion: Three single ended boilers, one 2,500hp Curtis steam turbine, one shaft.
    Click on thumbnail
    for full size image
    Size Image Description Source
    War Ally
    Westchester 489k 5 December 1917
    Photo from Northwest Steel employee newspapers, published 1 November 1919
    Darryl Baker
    Westchester 154k Photographed in an icy port, prior to the installation of her guns, circa late 1917 or early 1918
    U.S. Navy photo NH 85656
    Naval Historical Center

    View the Westchester (ID 3122)
    DANFS history entry located on the Naval History and Heritage Command website
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