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NavSource Online: Mine Warfare Vessel Photo Archive

HM BYMS-2009
ex-HM 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 HM J-809
  • Reclassified HM 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 registry 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
    HM BYMS-2009
    BYM-9 316k Grand Canal, Venice, Italy
    Moored outboard of BYMS-2026 after all the mines had been cleared
    From the collection of Victor Gatherum
    Tim Gatherum
    Anemone (DR 409)
    BYM-9 53k c. 1948
    Anemone (DR 409)
    Robert Hurst

    There is no DANFS history available for BYMS-9
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    This page created and maintained by Joseph M. Radigan
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