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NavSource Online: Mine Warfare Vessel Photo Archive


MSC-61 was built for Portugal

Adjutant Class Motor Minesweeper:

  • Laid down as AMS-61 by the Consolidated Shipbuilding Corp., Morris Heights, NY
  • Completed 30 June 1953 and transferred to Portugal as Horta (M 406)
  • Reclassified by U. S. Navy as a Coastal Minesweeper, MSC-61, 7 February 1955
  • Discarded in 1976.
  • Fate unknown.


  • Displacement 405 t.
  • Length 144'
  • Beam 27'
  • Draft 9'
  • Speed 14 kts.
  • Complement 40
  • Armament: Two 20mm mounts
  • Propulsion: Two 450shp General Motors diesel engines, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    MSC-61 99k c. August 1953
    United States Plywood Corporation advertisement
    "The U.S. Navy is building improved wooden ships like the one above for its minesweeper fleet. These are more immune to those magnetic mines which have taken a heavy toll of Navy men on the minesweepers in waters around Korea. Their light weight and sturdy construction are due in part to the magnetic-resistant aluminum faced plywood known as Armorply"
    Tommy Trampp
    Horta (M 406)
    MSC-61 61k Portuguese Navy photo from the 1958/1959 edition of Jane's Fighting Ships Robert Hurst
    MSC-61 90k c. 1971
    Portuguese Navy photo

    There is no DANFS History currently available for MSC-61
    Additional Resources and Websites 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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