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NavSource Online: Frigate Photo Archive


PF-107 served only in the Royal Thailand Navy.

Tapi call sign:
Hotel - Sierra - Victor - Charlie

PF-103 Class Frigate:

  • Laid down 1 April 1970 as PF-107 by the American Shipbuilding Co., Toledo, OH
  • Launched 1 November 1971
  • Transferred to the Royal Thailand Navy as HTMS Tapi (PF 5)
  • Reclassified PF-431
  • Fate unknown.


  • Displacement 1,172 t.
  • Length 275'
  • Beam 33'
  • Draft 10'
  • Speed 20 kts.
  • Complement 140
  • Armament: One 76mm mount, one 40mm mount, two 20mm mounts, two 12.7mm machine guns, two triple 12.75" torpedo tubes and one depth charge track
  • Propulsion: Two 2,650hp diesel engines, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    PF-107 134k Historical Collections of the Great Lakes
    PF-107 49k PF-431
    Royal Thai Navy photo
    Joe Radigan
    PF-107 131k Tapi photographed after 1983 modernization, with new 76mm Oto Melara Gun Forward, a Bofors 40mm AFT, and a Dutch WM25 fire control system
    Courtesy of Mr. G. Jacobs, 1990
    Naval History and Heritage Command photo NH 102382
    Mike Green
    PF-107 97k PF-431 Robert Hurst
    PF-107 145k 14 January 2006
    Undergoing repairs at Phachunlachomklao Naval Dockyard
    PF-107 169k 12 January 2008
    Phachunlachomklao Naval Dockyard
    HTMS Kirirat (PF 432) and Tapi
    PF-107 160k 12 January 2008
    Phachunlachomklao Naval Dockyard
    Kirirat and Tapi with flags flown at half staff, mourning HRH Princess Kalyanlwattaha, the King's elder sister who died 2 January 2008

    There is no DANFS history currently available for PF-107
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    This page created by Gary P. Priolo and maintained by Joe Radigan
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