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NavSource Online: Mine Warfare Vessel Photo Archive

Harlequin (MSF 365)

Call sign:
November - Hotel - Zulu - Juliet

Harlequin served the Navies of the United States and Mexico

Admirable Class Minesweeper:

  • Laid down 3 August 1943 by the Willamette Iron and Steel Corp., Portland, OR
  • Launched 3 June 1944
  • Commissioned USS Harlequin (AM 365), 31 August 1945
    Naval Vessel Register of 1 January 1949 lists plan for decommissioning and placing in reserve as December 1945
  • Decommissioned 27 May 1946 at Orange, TX
  • Reclassified as a Fleet Minesweeper (Steel Hull), MSF-365, 7 February 1955
  • Struck from the Naval Register 1 May 1962
  • Sold 2 October 1962 to Mexico and renamed ARM DM-20
  • Converted to an Oceanographic Research Vessel in 1978 and renamed ARM Oceanográfico (H 02)
  • Renamed and reclassified ARM General Pedro María Anaya (A 08) in 1993
  • Converted to a School Ship in 1999, renamed and reclassified ARM Aldebaran (BE 02)
  • Still active as of 2007.


  • Displacement 945 t.
  • Length 184' 6"
  • Beam 33'
  • Draft 9' 9"
  • Speed 14.8 kts.
  • Complement 104
  • Armament: One 3"/50 dual purpose gun mount, two twin 40mm gun mounts, six 20mm gun mounts, one depth charge projector (hedgehog), four depth charge projectors (k-guns), and two depth
    charge tracks
  • Propulsion: Two 1,710shp Busch Sulzer 539 diesel engines, Farrel Birmingham single reduction gear, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    USS Harlequin (AM 365)
    Harlequin 117k Namesake: Harlequin - A sea duck, found chiefly in North America, Iceland and Siberia Tommy Trampp
    ARM General Pedro María Anaya (A 08)
    Harlequin 63k Namesake: Pedro Bernardino María de Anaya y de Álvarez (20 May 1795 – 21 March 1854) was a military officer who served twice as interim president of Mexico from 1847 to 1848. He also played an important role during the Mexican–American War Tommy Trampp
    ARM Aldabaran (BE 02)
    Harlequin 172k c. 2006
    Veracruz, Mexico
    Photo by Salvador Barrera Rodriguez
    157k Wreck of the Harlequin (AM-365) after her transfer to the Mexican Navy and renamed ARM DM-20. Photo courtesy of

    Commanding Officers
    01LT Henry Robert Darling, USNR28 September 1945 - 1 November 1945
    02LT Glen Charles Wilkinson, USNR1 November 1945 - 17 December 1945
    03LTJG Thomas Kenneth Hendrick, USNR17 December 1945 - 27 May 1946
    Courtesy of Wolfgang Hechler and Ron Reeves

    View the Harlequin (MSF 365)
    DANFS History entry located on the Haze Gray & Underway Website
    Back To The Main Photo Index Back To the Mine Warfare Ship Photo Index Back to the Fleet Minesweeper (MSF) Photo Index

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