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NavSource Online:
Motor Gunboat/Patrol Gunboat Photo Archive


PGM-71 was built for Thailand

PGM-71 Class Motor Gunboat:

  • Laid down as PGM-71 by Peterson Builders, Sturgeon Bay, WI
  • Launched 14 September 1964
  • Delivered 5 May 1965, transferred under the Military Assistance Program to Thailand and reclassified HMTS T-11
  • Sunk by the Thai Navy to create an artificial reef near the island of Ko Chang, Thailand on 17 December 2013.


  • Displacement 130 t.
  • Length 101'
  • Beam 22'
  • Draft 8' 6"
  • Speed 18 kts.
  • Armament: One 40mm mount, two twin 20mm mounts and two .50 cal. machine guns
  • Propulsion: Two 975bhp MB820 Mercedes Benz diesel engines/eight 250bhp General Motors 6-71 diesel engines, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    PGM-71 150k Line drawing by A. D. Baker, III from U.S Small Combatants: An Illustrated Design History by Norman Friedman Robert Hurst
    HMTS T-11
    PGM-71 183k c. 1967
    Bangkok, Thailand
    Moored outboard of the training ship HMTS Chao Phya still wearing her U.S. hull number
    U.S. Navy photo NH 96073
    Naval History and Heritage Command
    PGM-71 230k c. December 2013 Alex Beuchel
    PGM-71 141k
    PGM-71 204k
    PGM-71 180k
    PGM-71 249k
    PGM-71 167k
    PGM-71 170k
    PGM-71 153k

    There is no DANFS history available for PGM-71
    Additional Resources and Web Sites of Interest
    Patrol Craft Sailors Association
    Back To The Main Photo Index Back to the Patrol Craft/Gunboat/Submarine Chaser Ship Index Back to the Motor Gunboat (PGM) Photo Index

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    This page created and maintained by Joseph M. Radigan
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