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NavSource Online: Mine Warfare Vessel Photo Archive


MSO-504 was built for Belgium.

Breydel's call sign:
Oscar - Romeo - Juliet - Kilo

Aggressive Class Ocean Minesweeper:

  • Laid down 25 November 1954 as AM-504 by the Tacoma Boat Building Co., Inc., Tacoma, WA
  • Reclassified as an Ocean Minesweeper, MSO-504, 7 February 1955
  • Launched 25 March 1955
  • Completed 24 January 1956
  • Transferred to Belgium and named Breydel (M 906), 15 February 1956
  • Retired from service in January 1993
  • Sold in 1995 to "De Leuvense Compagnie vzw" to be transformed into a museum ship
  • Scrapped in 2006.


  • Displacement 934 t.
  • Length 190'
  • Beam 36'
  • Draft 12'
  • Speed 15 kts.
  • Complement 81
  • Armament: One twin 40mm mount and two .50 cal. machine guns
  • Propulsion: General Motors 2,700shp diesel engines, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    MSO-504 294k 25 March 1955
    Immediately after launching at Tacoma Boat Building Co., Inc., Tacoma, WA. The AM-504 is the second of three 171-foot minesweepers to be launched by Tacoma Boat Building. The ship is expected to be ready for delivery to the Tacoma Naval Station for outfitting in November 1955
    Tacoma Public Library, Richard Studios photo D-89346-24
    Mike Green
    MSO-504 90k U.S. Navy photo Belgium MSO Website
    MSO-504 76k c. 1956
    In dry dock at Bremerton
    MSO-504 111k c. 1956
    In dry dock at Bremerton
    MSO-504 127k c. 1956
    Long Beach, CA
    U.S. Navy photo
    Robert M. Cieri
    Breydel (M 906)
    MSO-504 38k

    Jan Breydel (On the left) (Born ca. 1264; died between 1328 and 1333) is credited with leading the Bruges Matins (Brugse Metten), a violent uprising against Philip the Fair (Philip IV of France). He is said to have played a major role in the Franco-Flemish War, even though his authenticity has since been questioned

    Tommy Trampp
    MSO-504 78k Belgium Navy photo Belgium MSO Website
    MSO-499 58k Breydel, F. Bovesse (M 909), ex-MSO-516 and De Brouwer (M 904, ex-MSO-499 © Brice Dehasse
    MSO-503 101k c. 1965
    Valletta, Malta
    Breydel (M 906), Georges Truffaut (M 908), Artevelde (M 907) and F. Bovesse (M 909)
    Tommy Trampp
    MSO-503 224k 23 June 1971
    In the background from left to right the French destroyer Dupetit Thouars (D 625), the British landing ship dock HMS Fearless (L 10), the Belgian minesweepers Breydel (M 906) and Artevelde (M 907), ex-MSO-503
    Photo by Friedrich Magnussen (1914-1987), during Optimist regatta at the Kiel Week
    Robert Hurst
    Photo added 24 February 2022
    MSO-504 43k c. December 1973 Robert Hurst
    MSO-504 185k c. August 1982
    Antwerp, Belgium
    Photo by Gilbert Gyssels
    Gilbert Gyssels
    MSO-504 146k c. January 1985
    Brugge, Belgium
    Photo by Gilbert Gyssels
    MSO-504 189k c. February 1988
    Oostende, Belgium
    Photo by Gilbert Gyssels
    MSO-504 75k c. October 2000
    Rupelmonde, Belgium
    Photo by Daniel Develter
    Breydel Museum Website
    MSO-504 236k 17 October 2003
    Moored at Rupelmonde at low water. At left is the historic lightship Westhinder
    Photo taken on by Rijkswaterstaat
    Robert Hurst
    Photo added 24 February 2022
    MSO-504 25k Photo courtesy of Francois Gelens Tommy Trampp
    MSO-504 78k Photo courtesy of Paul Haaze

    There is no DANFS history available for MSO-504
    Additional Resources and Web Sites of Interest
    102 Minesweepers (MSO) Oceangoing Minesweepers
    Back To The Main Photo Index Back To the Mine Warfare Ship Photo Index Back to the Ocean Minesweeper (MSO) Photo Index

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