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NavSource Online: Mine Warfare Vessel Photo Archive

HMS Pylades (J 401)

BAM-21 was built for Great Britain.

Auk Class Minesweeper/Catherine Class British Minesweeper:

  • Laid down 30 January 1943 as BAM-21 by the Savannah Machine and Foundry Co., Savannah, GA
  • Launched 27 June 1943
  • Completed 24 November 1943, transferred to Great Britain and named HMS Pylades (J 401)
  • Sunk 6 July 1944 off Normandy, France by a German midget submarine (Biber)
  • Struck from the Naval Register 22 August 1944.


  • Displacement 890 t.
  • Length 221' 3"
  • Beam 32'
  • Draft 10' 9"
  • Speed 18 kts.
  • Complement 105
  • Armament: One 3"/50 dual purpose gun mount, two twin 40mm gun mounts, two 20mm gun mounts, two depth charge tracks, and five depth charge projectors
  • Propulsion: Two 1,710shp Cooper Bessemer GSB-8 diesel engines, National Supply Co. single reduction gear, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    BAM-21 36k c. January 1944 .

    There is no DANFS history currently available for BAM-21
    Additional Resources and Web Sites of Interest
    Naval Minewarfare Association
    Association of Minemen
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    This page created and maintained by Joseph M. Radigan
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