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

Courtesy of Al Grazevich

Courtesy of Mike Smolinski

Prime (MSO-466)

Call sign:
November - India - November - Golf

Aggressive Class Minesweeper:

  • Laid down 30 December 1952 at Wilmington Boat Works, Wilmington, CA
  • Launched 27 May 1954
  • Commissioned USS Prime (AM-466), 11 October 1954
  • Reclassified as an Ocean Minesweeper, MSO-466, 7 February 1955
  • Struck from the Navy Register 1 October 1976
  • Sold for scrap 7 January 1977 by the Defense Reuitilization and Marketing Service to Edward Hixson, of Los Alamitos, CA for $26,769.


  • Displacement 630 t.(lt), 755 t.(fl)
  • Length 172'
  • Beam 35'
  • Draft 10'
  • Speed 14 kts.
  • Complement 80
  • Armament: As built, one 40mm gun mount and two .50 cal machine guns. Final configuration, bow gun replaced by one twin 20mm gun mount, two .50 cal. machine guns remain
  • Propulsion: Four Packard ID1700 diesel engines, two shafts, two controllable pitch propellers.
    Click on thumbnail
    for full size image
    Size Image Description Source
    Prime (AM 466)
    Prime 115k 14 September 1954
    Undergoing sea trials
    National Archives photo from the Bureau of Ships collection ARC Identifier 6933250
    Robert Hurst
    USS Prime (MSO 466)
    Prime 130k . 102 Minesweeper
    Dick Lewis
    Prime 160k . Paul Wamsley
    Prime 109k . Joe Radigan
    Prime 233k 4 December 1959
    Vancouver, British Columbia, Canada
    Photo by Walter E. Frost from City of Vancouver Archives
    Michael Mohl
    Prime 153k Prime and P2V-7 Neptune on patrol off the coast of Vietnam
    U.S. Navy photo from the January 1966 edition of All Hands magazine
    Joe Radigan

    Commanding Officers
    01LT William Frankland Longton, USN - USNA Class of 194611 October 1954 - 30 April 1956
    02LCDR Edwin Lee Ball, USN - USNA Class of 194630 April 1956 - 6 June 1958
    03LCDR Wallace Sulveanus Gabriel, USN - USNA Class of 1948-B6 June 1958 - 8 July 1959
    04LCDR Randall Wayne Young, USN8 July 1959 - 20 July 1961
    05LCDR Searcy Garlits Galing, USN20 July 1961 - 17 July 1963
    06LCDR George Thomas Hull, USN - USNA Class of 195217 July 1963 - 23 September 1965
    07LCDR Cornelius T. O'Neill, USN23 September 1965 - 7 June 1967
    08LCDR Henry Herrward Mauz, Jr., USN - USNA Class of 1959
    Awarded three Navy Distinguished Service Medals, the Defense Superior Service Medal, the Bronze Star w/Combat V, the Legion of Merit, the Meritorious Service Medal, three Navy Achievement Medals and the Combat Action Ribbon - Retired as Admiral
    7 June 1967 - 29 July 1969
    09LCDR John Faber Bennett, Jr., USN29 July 1969 - 6 November 1970
    Courtesy Wolfgang Hechler, Ron Reeves and Joe Radigan

    View the Prime (MSO-466)
    DANFS History entry located on the Haze Gray & Underway Website
    Additional Resources and Web Sites of Interest
    102 Minesweepers (MSO) Oceangoing Minesweepers

    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 by Gary P. Priolo and maintained by Joe Radigan
    All pages copyright NavSource Naval History