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NavSource Online: Mine Warfare Vessel Photo Archive


MSO-518 was built for Italy.

Call sign:
India - Alpha - Kilo - Echo

AM-506 Class Minesweeper:

  • Laid down 15 June 1955 as MSO-518 by the Tampa Marine Co., Tampa, FL
  • Launched 3 December 1956 and sponsored by Mrs. W. C. Crumer
  • Completed 13 June 1957
  • Transferred to Italy 20 June 1957 and named Squalo (M 5433)
  • Reclassified P-5433
  • Decommissioned 3 October 2000
  • Fate unknown.


  • Displacement 750 t.
  • Length 172'
  • Beam 35'
  • Draft 11'
  • Speed 15.5 kts.
  • Armament: One 40mm mount and two .50 cal. machine guns
  • Propulsion: Two 1,600shp General Motors diesel engines, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    MSO-518 129k Original photo: c. 1963
    Photo by Captain Aldo Fraccaroli
    Replacement photo: Photo Photo by Captain Aldo Fraccaroli from Jane's Fighting Ships
    Original photo: Joe Radigan
    Replacement photo: Robert Hurst
    MSO-518 227k c. July 1981
    Toulon, France
    Gilbert Gyssels
    MSO-518 338k 5 November 1986
    La Spezia, Italy
    Carlo Martinelli
    MSO-518 419k 5 November 1986
    La Spezia, Italy
    Passing Cedro (M 5505), ex-MSC-88

    There is no DANFS history available for MSO-518
    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

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    This page created and maintained by Joseph M. Radigan
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