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NavSource Online: Mine Warfare Vessel Photo Archive

Portent (AM 106)

Sunk 22 January 1944

Auk Class Minesweeper:

  • Laid down 15 November 1941 by the Pennsylvania Shipyards Inc., Beaumont, TX
  • Launched 16 August 1942
  • Commissioned 3 April 1943
  • Struck a mine near Anzio, Italy and sank, 22 January 1944
  • Struck from the Naval Register, 6 March 1944.


  • Displacement 890 t.
  • Length 221' 2"
  • Beam 32'
  • Draft 10' 9"
  • Speed 18.1 kts.
  • Complement 105
  • Armament: One 3"/50 dual purpose gun mount, two 40mm gun mounts, two 20mm gun mounts, two depth charge tracks, and five depth charge projectors
  • Propulsion: Two 1,559shp Busch Sulzer 539 diesel electric engines, Westinghouse reduction gear, two shafts.
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    Size Image Description Source
    Portent 147k 22 January 1944
    Sinking off Anzio after hitting a mine on "D-Day," 22 January 1944
    Photographed from a USS Brooklyn (CL-40) 40mm anti-aircraft gun mount
    National Archives photo 80-G-212430
    Mike Green

    View the Portent (AM 106)
    DANFS history entry located on the Naval History and Heritage Command website
    Additional Resources and Websites of Interest
    Naval Minewarfare Association Association of Minemen

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