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NavSource Online: Mine Warfare Vessel Photo Archive


Call sign:
Nan - Able - Queen - Item

YMS-1 Class Auxiliary Motor Minesweeper:

  • Laid down 18 April 1942 by Henry B. Nevins, Inc., City Island, NY
  • Launched 20 July 1942
  • Completed 6 August 1942
  • Struck from the Naval Register 19 June 1946
  • Transferred to the State Department, Foreign Liquidation Commission in December 1947
  • 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-11 165k 20 April 1942
    Cigarette case presented to Mrs. Frederic Jay Wells.
    Ben Mucke
    USS YMS-11
    YMS-11 164k . Dennis B. McCourt
    YMS-11 201k Guian, Samar, Philippines
    Entering Cruiser dry dock
    YMS-11 237k Guian, Samar, Philippines
    Dry docked
    YMS-11 236k
    YMS-11 197k Manus, Admiralty Islands
    Left to right: Willis Hamilton; LT John J. McCourt, Commanding Officer and Art Holland, Executive Officer
    YMS-401 220k 15 August 1945
    Manus, Admiralty Islands
    V-J Day celebration. "Beer for All Hands"

    Commanding Officers
    01LT John J. McCourt, USNRJanuary 1945 - December 1945
    Courtesy Dennis B. McCourt

    There is no DANFS history available for YMS-11
    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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