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NavSource Online: Mine Warfare Vessel Photo Archive


Call sign:
Nan - Charkie - Fox - George

YMS-1 Class Auxiliary Motor Minesweeper:

  • Laid down 21 October 1943 by Robert Jacob Inc., City Island, NY
  • Launched 14 July 1944
  • Completed 18 November 1944
  • Commissioned USS YMS-439, 20 NOvember 1944 under the command of LTJG Thomas B. Rhodes, Jr., USNR
  • Decommissioned 1 May 1946
  • Struck from the Naval Register 19 July 1946
  • Transferred to the War Shipping Administration 17 March 1947
  • Acquired later in 1947 by the Marco Corporation of California of Clearwater, CA and named La Cienta and Manta Bay
  • Acquired in 1953 by the Richfield Oil Corp. of Los Angeles, CA
  • Out of documentation in 1957 and Motorboat No. CF 2127 AU awarded
  • Acquired in 1970 by Global Marine, Inc. of Los Angeles
  • Acquired in 1971 by Arthur B. Church of Bellevue, WA
  • Acquired in 1987 by Imperial Imports, Inc. and renamed Pegasus
  • Acquired in 1992 by Craig L. Belshe of Lynnwood, WA
  • Renamed Manta Ray 10 November 1992
  • Acquired in 2002 by Bennie E. Nelson and Scott M. Edson
  • Defaulted on moorage fees in 2003 and sold the ship to their creditors, the Bakketun and Thomas Boat Co., LLC of Seattle, WA
  • Acquired by Joe Moeller of Seattle for use as a yacht and renamed YMS-439
  • Acquired on 21 June 2010 by Michael D. Robinson of North Bend, WA
  • Purchased in NOvember 2011 by David L. Saia of Stanwood, WA
  • Fate unknown.


  • 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.
    Click on thumbnail
    for full size image
    Size Image Description Source
    YMS-439 100 Johnny Moeller
    YMS-439 137

    There is no DANFS History currently available for YMS-439
    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
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