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NavSource Online: Mine Warfare Vessel Photo Archive

Crossbill (MSC[O] 45)

Call sign:
November - Bravo - Foxtrot - Yankee

YMS-1 Class Auxiliary Motor Minesweeper:

  • Laid down 23 August 1941 by the Harbor Boat Building Co., Terminal Island, CA
  • Launched 4 April 1942
  • Completed 1 August 1942 and commissioned USS YMS-120
  • Reclassified as a Motor Minesweeper, AMS-45, named Crossbill, 1 September 1947 and placed in service as a Naval Reserve training ship in the 4th Naval District (Philadelphia)
  • Reclassified as a Minesweeper Coastal (Old), MSC(O)-45, 7 February 1955
  • Struck from the Naval Register 1 November 1959
  • 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-120 126k c. 1945
    San Francisco Bay, CA
    Courtesy of Donald McPherson, 1976
    Naval History and Heritage Command photo NH 84969
    Mike Green

    Commanding Officers
    01Chief Boatswain John I. Howton, USN1950 - September 1951
    02LT Thomas W. Brown, USNSeptember 1951 - June 1952
    03LT William James Diffley, USNRJune 1952
    04LT Arthur Coday, USN.
    Courtesy Wolfgang Hechler and Ron Reeves

    View the YMS-120
    DANFS history entry located on the Haze Gray & Underway website
    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 Back to the Motor Minesweeper (AMS) Photo Index Back to the Coastal Minesweeper (MSC) Photo Index

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    This page created and maintained by Joseph M. Radigan
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