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NavSource Online: Mine Warfare Vessel Photo Archive


Call sign:
Nan - Xray - Fox - Xray

YMS-1 Class Auxiliary Motor Minesweeper:

  • Laid down 11 May 1942 by the Western Boat Building Co., Tacoma, WA
  • Launched 24 October 1942
  • Completed 26 February 1943
  • Commissioned USS YMS-147, 27 February 1943
  • Assigned to the Pacific
  • Decommissioned 15 May 1946
  • Struck from the Naval Register 7 February 1947
  • Transferred to the War Shipping Administration in February 1948
  • Acquired in 1948 by Harvey R. MacMillan of Vancouver, British Columbia, Canada and named Marijean
  • Registered in 1950 to the Phillips Petroleum Co. of Houston, TX as the oil exploration vessel Phillips 1 out of Houston
  • Out of documentation in 1954 and issued Coast Guard license 22I.479 for use solely in geophysical exploration
  • Registered in 1960 to Triple C Offshore, Inc. of Morgan City, LA as the fishing boat Susie C out of Morgan City
  • Scrapped in 1969.


  • Displacement 270 t.
    1950 - 253 t.
    1960 - 251 t.
  • Length 136'
    1960 - 126.3'
  • Beam 24' 6"
    1950 - 25'
  • Draft 8'
    1950 - 11.3'
  • Speed 15 kts.
  • Complement 32
    1950 - Seven
  • 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.
    Click on thumbnail
    for full size image
    Size Image Description Source
    YMS-147 146k Marijean Joe Radigan

    Commanding Officers
    01LTJG George C. Williams, USNR27 February 1943
    02LTJG J. M. Prokop, USNR1945
    Courtesy Joe Radigan

    There is no DANFS history available for YMS-147
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    This page created and maintained by Joseph M. Radigan & Michael Mohl

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