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NavSource Online: Patrol Craft/Gunboat/Submarine Chaser Photo Archive

Peridot (PYc 18)

Call sign:
Nan - Baker - Able - Dog

Minosan call sign (1948):
William - Nan - Dog - Peter

Coastal Patrol Yacht:

  • Built in 1938 as the yacht Bymar by Defoe Boat and Motor Works, Bay City, MI for Byron D. Miller of Palm Beach, FL
  • Acquired by the Navy 22 December 1941
  • Renamed Peridot and designated a Coastal Patrol Yacht, PYc-18, 27 December 1941
  • Commissioned USS Peridot (PYc 18), 11 April 1942
  • Decommissioned 3 January 1946 at Terminal Island, CA
  • Struck from the Naval Register 21 January 1946
  • Transferred 29 September 1946 to the Maritime Commission for disposal
  • Sold in 1946 to J. D. O'Leary of New York, NY and renamed Mimosan
  • Sold in 1947 to the Union Engineering Corp. of Hoboken, NJ
  • Registered in 1948 to the Union Engineering Corp. (NJ) of Hoboken, NJ as the yacht Mimosan
  • Sold later in 1948 to Santiago Vierno of Montevideo, Uruguay
  • Sold in 1950 to Alberto Dodero, of Buenos Aries, Argentina
  • Sold in 1952 to George Dawson of Great Britian
  • Sold in 1953 to Protocol Investments Trust of Africa (Pty.), Ltd of Johannesburg, South Africa and renamed Halimede
  • Sold in 1954 to the Protocol Trading Corp. of Nassau, Bahamas
  • Sold in 1958 to the Lord Ivorforth of London, England
  • Renamed Zimba in 1959
  • Sold to a Middle Eastern owner and renamed Maha
  • Sold in 2003 to a Saudi Arabian owner and renamed Al Mojil 5
  • Fate unknown.


  • Displacement 300 t.
    1948 - 299 t.
  • Length 144' 7"
    1948 - 155.5'
  • Beam 22' 8"
    1948 - 23.3'
  • Draft 8'
    1948 - 12.4'
  • Speed 13 kts.
  • Complement 48
    1948 - 13
  • Armament: One 3"/50 dual purpose mount, two .30 cal. machine guns and two depth charge tracks
  • Propulsion: Two 500bhp General Motors 8-268A diesel engines, two shafts.

    Click on thumbnail
    for full size image
    Size Image Description Source
    Motor Yacht Bymar
    Bymar/Peridot 159k Historical Collections of the Great Lakes
    USS Peridot (PYc 18)
    Peridot 125k During World War II
    Courtesy of D. M. McPherson, 1975
    U.S. Navy photo NH 83394
    Naval History and Heritage Command
    Motor Yacht Maha
    Peridot/Maha 247k
    Peridot/Maha 247k Photo by Hugo Hein
    Peridot/Maha 247k
    Motor Yacht Al Mojil 5
    Peridot/Al Mojil 5 247k

    View the Peridot (PYc 18)
    DANFS History entry located on the Naval History and Heritage Command website
    Back To The Main Photo Index Back to the Patrol Craft/Gunboat/Submarine Chaser Ship Index Back to the Coastal Patrol Yacht (PYc) Photo Index

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    This page created and maintained by Joseph M. Radigan
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