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NavSource Online: Mine Warfare Vessel Photo Archive

YMS-133

Sank 20 February 1943

YMS-1 Class Auxiliary Motor Minesweeper:

  • Laid down 14 July 1941 by the Western Boat Building Co., Tacoma, WA
  • Launched 18 December 1941
  • Completed 21 July 1942
  • Foundered and sunk 20 February 1943 off Coos Bay, OR.

    Specifications:

  • 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 reduction gear, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    YMS-133 114k Envelope post marked 21 February 1984, Coos Bay, OR Tommy Trampp

    There is no DANFS history available for YMS-133
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