Please report any broken links or trouble you might come across to the Webmaster. Please take a moment to let us know so that we can correct any problems and make your visit as enjoyable and as informative as possible.

NavSource Online: Mine Warfare Vessel Photo Archive

ex-HMS J-832

BYMS-32 served the Navies of Great Britain and Finland.

BYMS-1 Class Motor Minesweeper:

  • Laid down 21 May 1942 as BYMS-32 by the American Car and Foundry Co., Wilmington, DE
  • Launched 29 October 1942
  • Completed 9 April 1943
  • Transferred to Great Britain and reclassified HMS J-832
  • Reclassified HMS BYMS-2032, 10 April 1943
  • Transferred to the State Department, Foreign Liquidation Commission in February 1948
  • Returned to U.S. custody 19 May 1948, sold to Finland and named Tammenpaa
  • Scrapped in 1958.


  • 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
    BYMS-32 99k 29 October 1942
    Preparing to launch
    American Car and Foundry Co. photo
    Hagley Digital Archives

    There is no DANFS history available for BYMS-32
    Back to the Main Photo Index Back to the Mine Warfare Ship Photo Index Back to the British Motor Minesweeper (BYMS) Photo Index

    Comments, Suggestions, E-mail Webmaster

    This page created and maintained by Joseph M. Radigan & Michael Mohl
    All pages copyright NavSource Naval History