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

MSO-480
ex-AM-480


Courtesy of Arie van Mazijk


Call sign:
Papa - Alpha - Yankee - Mike


AM-480 was built for the Netherlands
AM-480 Class Ocean Minesweeper:

  • Laid down 24 September 1952 as AM-480 by the Astoria Marine Construction Co., Astoria, OR
  • Launched 11 April 1953 and sponsored by Mrs. R. Wilhelm, Jr.
  • Completed 19 May 1954
  • Transferred to the Netherlands 27 May 1954 and named Onversaagd (M 884)
  • Reclassified by U. S. Navy as an Ocean Minesweeper, MSO-480, 7 February 1955
  • Reclassified A-854 in August 1965
  • Scrapped 31 July 1979 at Settingbourne, Kent, United Kingdom.

    Specifications:

  • Displacement 750 t.
  • Length 171'
  • Beam 35'
  • Draft 10' 4"
  • Speed 15 kts.
  • Complement 39
  • Armament: One 40mm mount and two .50 cal. machine guns
  • Propulsion: Four 400shp General Motors diesel enginess, two shafts.
    Click on thumbnail
    for full size image    		 Size Image Description Source
    AM-480
    AM-480 123k 25 October 1952
    Construction progress photo    		 Astoria Marine Construction Co.
    MSO-480 98k The crews of Onversaagd and Bolsward (M 846), ex-AMS-109 by the plane to go to the United States Arie van Mazijk
    MSO-480 64k 1 May 1954
    Conducting training
    MSO-480 74k
    Onversaagd (M 884)
    MSO-480 97k 27 May 1954
    Placed in service    		 Arie van Mazijk
    MSO-480 58k Den Helder, Holland
    Onbevreesd (M 885), ex-MSO-481; Onverschrokken (M 886), ex-MSO-483 and Onversaagd
    Onversaagd (A 854)
    AM-480 135k . Mercuur Museum Website
    MSO-480 395k . Pieter Bakels
    MSO-480 30k . Arie van Mazijk
    MSO-480 58k Den Helder, Holland
    Entering port for repair of a broken crankshaft
    MSO-480 147k c. 1973
    Crew photo
    There is no DANFS history available for MSO-480
    Additional Resources and Web Sites of Interest
    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 (of blessed memory) & David Wright
    All Pages © 1996 - 2023, NavSource History, All rights reserved.