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NavSource Online: Mine Warfare Vessel Photo Archive


Call sign:
Nan - William - Uncle - Charlie

YMS-138 served the Navies of the United States and Thailand.

YMS-1 Class Auxiliary Motor Minesweeper:

  • Laid down 29 August 1942 by the Astoria Marine Construction Co., Astoria, OR
  • Launched 17 April 1943
  • Completed 7 June 1943
  • Commissioned USS YMS-138, 19 June 1943
  • Struck from the Navy Register 19 June 1946
  • Transferred to the State Department, Foreign Liquidation Commission in November 1947, sold to Thailand and named HTMS Ladya
  • 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
    USS YMS-138
    YMS-138 62k c. 1944 Thomas J. Donahue via Bill Head
    HTMS Ladya
    YMS-138 42k Royal Thai Navy photo Robert Hurst

    There is no DANFS history available for YMS-138
    "Victory Sweep"
    Our Navy magazine article about YMS-138
    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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