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NavSource Online: Mine Warfare Vessel Photo Archive

ex-HMS J-809

BYMS-9 was built for Great Britain and also served in the Italian Navy.

BYMS-1 Class Motor Minesweeper:

  • Laid down 18 September 1941 as BYMS-9 by Associated Shipbuilders, Seattle, WA
  • Launched 17 March 1942
  • Completed 31 August 1942
  • Transferred to Great Britain 1 September 1942 and reclassified HMS J-809
  • Reclassified HMS BYMS-2009
  • Returned to U.S. custody 23 May 1947, transfer to the State Department, Foreign Liquidation Commission, sold to Italy and named Anemone (DR 409)
  • Reclassified M-5400
  • Struck from the Naval Register 10 June 1947
  • Struck from Italian Naval registery in 1966
  • 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 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
    BYM-9 53k c. 1948
    Anemone (DR 409)
    Robert Hurst

    There is no DANFS history available for BYMS-9
    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 British Motor Minesweeper (BYMS) Photo Index

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    This page created and maintained by Joseph M. Radigan
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