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NavSource Online: Mine Warfare Vessel Photo Archive

Courtesy of Al Grazevich

Courtesy of Mike Smolinski

Swerve (MSO 495)

Call sign:
November - Sierra - Foxtrot - Bravo

Aggressive Class Minesweeper:

  • Laid down 20 December 1954 as AM-495 at Boward Marine, Fort Lauderdale, Florida
  • Reclassified as an Ocean Minesweeper, MSO-495, 7 February 1955
  • Launched 1 November 1955
  • Commissioned USS Swerve (MSO-495), 27 July 1957
  • Decommissioned 1 July 1971 and laid up in the Atlantic Reserve Fleet
  • Sold for scrap 1 February 1978 by the Defense Reutilization and Marketing Service.


  • 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
    Swerve 34k . Tom Sparkman
    Sturdy 266k c. 1950/1960 era
    Navy Yard Charleston, SC
    Swerve, Adroit (MSO 509), Sturdy (MSO 494) and an unidentified MSO in Dry Dock No, 2. The destroyer Manley (DD 940) and tank landing ship Tallahatchie County (LST 1154) are in the distance.
    Robert Hall

    Commanding Officers
    01LCDR Kenneth Howard Eaton, USN27 July 1957
    02LCDR Rodion Cantacuzene, USN - USNA Class of 19521963
    03LT Charles David Ewing, USN1965
    04LCDR Ronald Ray Grove, USN1966 - 1967
    05LCDR James Donald Firnbach, USN1970
    Courtesy Wolfgang Hechler and Ron Reeves

    View the Swerve (MSO-495)
    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

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