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


MSI-90 was built in Belgium

MSI-1 Class Inshore Minesweeper:

  • Laid down as MSI-90 by the Mercantile Marine Yard, Kruibeke, Belgium
  • Delivered 14 October 1957
  • Commissioned RBNS Herstal (M 478)
  • Converted to a survey ship in 1970
  • Decommissioned and struck from the Naval Register in 1991
  • Fate unknown.


  • Displacement 120 t.
  • Length 112'
  • Beam 23'
  • Draft 8'
  • Speed 15 kts.
  • Complement 21
  • Armament: One twin 20mm Oerliken mount
  • One Mercedes Benz V12 700kw magnetic pulse generator and two 6-cylinder Gardiner 60kw diesel generators
  • Propulsion: Two 700kw Mercedes Benz V12 diesel engines, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    MSI-83 & MSI-90 200k Royal Belgian Navy motor minesweepers RBNS Oudenaarde (M 477) inboard and RBNS Herstal (M 478) outboard
    Photo courtesy of Raphodon
    Photo added 13 August 2019
    Robert Hurst
    MSI-90 157k c. 1969
    Belgian Navy photo from the 1969-1970 edition of Jane's Fighting Ships
    MSI-90 206k c. 1971
    Photo by John G. Callis

    There is no DANFS history currently available for MSI-90
    Back to the Main Photo Index Back to the Mine Warfare Ship Photo Index Back to the Inshore Minesweeper (MSI) Photo Index

    Comments, Suggestions, E-mail Webmaster

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