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NavSource Online: Mine Warfare Vessel Photo Archive


Call sign:
Nan - Queen - Zebra - Uncle


YMS-1 Class Auxiliary Motor Minesweeper:

  • Laid down 12 July 1943 as PCS-1453 by Tacoma Boat Building Co., Tacoma, WA
  • Reclassified as an Auxiliary Motor Minesweeper, YMS-477, 27 September 1943
  • Launched 6 November 1943
  • Completed 10 July 1944 and commissioned USS YMS-477 under the command of LTJG Russell V. Malo, USNR
  • Struck from the Naval Register 28 August 1946
  • Transferred to the State Department, Foreign Liquidation Commission in April 1947 and sold
  • Fate unknown.


  • Displacement 270 t.
  • Length 136'
  • Beam 24' 6"
  • Draft 6' 1"
  • Speed 12 kts.
  • Complement 33
  • Armament: One single 3"/50 dual purpose gun mount, two 20mm mounts and two depth charge projectors
  • Propulsion: Two 880shp 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-477 42k Fon Davis
    YMS-477 Crew 145k The crew
    Glen L. Hunt, no shirt, second from left with arm on chain
    YMS-477 202k U.S. Navy photo from the March 1971 edition of All Hands magazine Joe Radigan

    There is no DANFS history available for YMS-477
    Back To The Main Photo Index Back to the Patrol Craft/Gunboat/Submarine Chaser Ship 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

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