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NavSource Online: Mine Warfare Vessel Photo Archive


Call sign:
Nan - Jig - Yoke - Victor


YMS-1 Class Auxiliary Motor Minesweeper:

  • Laid down 25 May 1943 as Patrol Craft Sweeper, PCS-1462 by the Bellingham Marine Railway and Boatbuilding Co., Bellingham, WA
  • Reclassified as an Auxiliary Motor Minesweeper, YMS-480, 27 September 1943
  • Launched 20 November 1943
  • Reclassified as a District Degaussing Vessel, YDG-7, 23 December 1943
  • Completed 15 March 1944
  • Struck from the Navy Register 12 April 1946
  • Transferred to the War Shipping Administration 27 August 1947 and sold
  • Fate unknown.


  • Displacement 270 t.
  • Length 136'
  • Beam 24' 6"
  • Draft 8'
  • Speed 15 kts.
  • Complement 32
  • Armament: Two 20mm mounts
  • Propulsion: Two 1,800shp 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-480 107k YDG-7 photographed by her builder on 21 March 1944
    National Archives photo 19-N-62838 from
    Robert Hurst
    YMS-480 88k YDG-7 photographed by her builder on 21 March 1944
    National Archives photo 19-N-62834
    Mike Green

    Commanding Officers
    01LCDR William A. Saleebey, USNR15 March 1944 - May 1945
    02LT Herbert E. Bergquist, USNRMay 1945 - December 1945
    01LTJG Peter Popovich, USNRDecember 1945 - 26 March 1946
    Courtesy Joe Radigan and Wilfgang Hechler

    There is no DANFS history available for YDG-7
    Back to the Main Photo Index Back to the Patrol Craft/Gunboat/Submarine Chaser Index Back to the Patrol Craft Sweeper (PCS) Photo Index Back to the Mine Warfare Ship Photo Index Back to the Auxiliary Motor Minesweeper (YMS) Photo Index Back to the Yard and District Craft Index Back to the District Degaussing Vessel Photo Index

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    This page created and maintained by Joseph M. Radigan (of blessed memory) & Michael Mohl
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