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NavSource Online: Mine Warfare Vessel Photo Archive


Call sign:
Nan - Charlie - Able - Charlie

La Obra call sign (1948):
King - Queen - Item - Fox

YMS-1 Class Auxiliary Motor Minesweeper:

  • Laid down 15 June 1944 by the J. M. Martinac Shipbuilding Corp., Tacoma, WA
  • Launched 14 March 1945
  • Completed and commissioned USS YMS-436, 31 May 1945 under the command of LT J. W. Nelson, USNR
  • Decommissioned 1 January 1947
  • Struck from the Naval Register 5 March 1947
  • Transferred to the War Shipping Administration 13 May 1947
  • Registered in 1948 to Velero II, Inc. of Los Angeles, CA as the miscellaneous use vessel La Obra out of Los Angeles
  • Registered in 1949 to Independent Tankships, Inc. of Washington, DC as the miscellaneous use vessel Badawy out of Wilmington, DE
  • Operated in 1952 under the Saudi Arabian flag
  • Fate unknown.


  • Displacement 270 t.
    1948 - 250 t.
  • Length 136'
    1948 - 126.5'
  • Beam 24' 6"
  • Draft 8'
    1948 - 11.5'
  • Speed 15 kts.
  • Complement 32
    1948 - Six
  • 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
    YM -436 121k David Wright
    YM -436 200k c. 1945
    Yokkaichi, Japan
    Ships officers at Thanksgiving Dinner
    Rear of photo is inscribed "L. M. Riechman"

    There is no DANFS History currently available for YMS-436
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