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


AM-475 was built for France

Mytho call sign:
Foxtrot - Alpha - Tango - Romeo

AM-480 Class Fleet Minesweeper:

  • Laid down 3 March 1953 as AM-475 by the Bellingham Shipyards Co., Bellingham, WA
  • Launched 25 September 1953
  • Delivered 1 December 1953
  • Reclassified as an Ocean Minesweeper, MSO-475, 7 February 1955
  • Transferred to France as Mytho (M 618) 20 October 1954
  • Decommissioned 20 January 1988
  • Scrapped 28 September 1989.


  • Displacement 750 t.
  • Length 171'
  • Beam 35'
  • Draft 10' 4"
  • Speed 15 kts.
  • Complement 39
  • Armament: One 40-mm mount and two .50 cal. machine guns
  • Propulsion: Two 800shp General Motors diesel enginess, two shafts (fitted with a bow thruster between 1975 - 1979).
    Click on thumbnail
    for full size image
    Size Image Description Source
    MSO-475 96k . Robert Hurst
    MSO-475 105k c. 1969
    French Navy photo
    MSO-475 77k c. 1982
    Brittany, France

    There is no DANFS history available for MSO-475
    102 Minesweepers (MSO) Oceangoing Minesweepers
    Naval Minewarfare Association
    Association of Minemen
    Back to the Main Photo Index Back to the Mine Warfare Ship Photo Index Back to the Ocean Minesweeper (MSO) Photo Index

    Comments, Suggestions, E-mail Webmaster

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