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NavSource Online: Mine Warfare Vessel Photo Archive

HMS BYMS-2020
ex-HMS J-820
ex-BYMS-20



BYMS-20 was built for Great Britain.
BYMS-1 Class Motor Minesweeper:

  • Laid down 2 August 1941 as BYMS-20 by Bellingham Iron Works, Inc., Bellingham, WA
  • Launched 27 June 1942
  • Completed, transferred to Great Britain 29 August 1942 and reclassified HMS J-820
  • Reclassified BYMS-2020
  • Struck from the Naval Register 10 June 1947 and transferred to the State Department, Foreign Liquidation Commission
  • Returned to U.S. custody 10 July 1947 and sold
  • Fate unknown.

    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 tracks
  • 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
    No image of BYMS-20 is available at this time
    There is no DANFS history available for BYMS-20
    Additional Resources and Web Sites of Interest
    Naval Minewarfare Association
    Association of Minemen
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