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NavSource Online: Mine Warfare Vessel Photo Archive


Call sign:
Nan - Baker - King - How

YMS-1 Class Auxiliary Motor Minesweeper:

  • Laid down 2 July 1941 by the Krause and Banks Shipbuilding Co., Inc., North Bend, OR
  • Launched 14 March 1942
  • Completed 24 August 1942 and commissioned USS YMS-123
  • Struck from the Naval Register 17 April 1946
  • Transferred to the War Shipping Administration in February 1947
  • Purchased by Nootka Sound Services Ltd., of Vancouver Island, British Columbia, Canada in late 1951 and placed in service as the passenger/cargo ship MV Uchuck III operating out of Gold River,
    British Columbia.


  • Displacement 270 t.
  • Length 136'
  • Beam 24' 6"
  • Draft 8'
  • Speed 15 kts.
  • Complement 32
  • Armament: One 3"/50 dual purpose gun mount, two 20mm mounts, and two depth charge projectors
  • Propulsion: Two 880bhp General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts
    Engines replaced in 1951.

    Click on thumbnail
    for full size image
    Size Image Description Source
    USS YMS-123
    YMS-123 214k 18 September 1942
    Off Mare Island Navy Yard, CA
    Naval History and Heritage Command photo NH 78179
    Mike Green
    YMS-123 23k c. 1943 Joe Radigan
    271k During World War II, the Krause and Banks shipyard built eight wooden U.S. Navy minesweepers used to clear the way for amphibious landings.
    Pictured here is U.S. Navy minesweeper YMS-123.
    Photo by
    MV Uchuck III
    Uchuck III 19k Get West Adventure Cruises
    Uchuck III 296k c. 2012
    Uchuck III 284k

    There is no DANFS history available for YMS-123
    Additional Resources and Web Sites of Interest
    Naval Minewarfare Association
    Association of Minemen
    Back To The Main Photo Index Back To the Mine Warfare Ship Photo Index Back To The Auxiliary Motor Minesweeper (YMS) Photo Index

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    This page created and maintained by Joseph M. Radigan (of blessed memory) & Michael Mohl
    All Pages 1996 - 2023, NavSource History, All rights reserved.