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NavSource Online:
Submarine Chaser Photo Archive


Call sign:
Nan - Fox - Able - Item

PC-570 served the Navies of the United States and Thailand

PC-461 Class Submarine Chaser:

  • Laid down 11 September 1941 by the Albina Engine and Machinery Works, Portland, OR
  • Launched 5 January 1942
  • Commissioned USS PC-570, 18 April 1942
  • Decommissioned in January 1947 at Astoria, Oregon and laid up in the Pacific Reserve Fleet Columbia River Group
  • Transferred in June 1953 to Thailand and named HTMS Longlom (PC 8)
  • Decommissioned 2 February 1994
  • Fate unknown.


  • Displacement 295 t.(lt), 450 t.(fl)
  • Length 173' 8"
  • Beam 23'
  • Draft 10' 10"
  • Speed 20.2 kts.
  • Complement 65
  • Armament: One 3"/50 dual purpose gun mount, one 40mm gun mount, three 20mm guns, two Mk20 Mousetrap rocket launchers, four depth charge projectors, two Mk32 MOD 3 single tube
    anti-submarine torpedos and two depth charge tracks
  • Propulsion: Two 1,440bhp Fairbanks Morse 38D8 1/8 diesel engines (Serial No. 832225 and 832226), Westinghouse single reduction gear, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    USS PC-570
    PC-570 82k Joe Martin
    HTMS Longlom (PC 8)
    PC-570 112k 7 June 1953
    Still wearing her U.S. Navy hull number
    United Press photo
    Joe Martin
    PC-570 65k c. 1975 Robert Hurst

    Below photos from the collection of Aubrey Alfred Bowman, USS PC-570
    Contributed by his daughter Belinda Bowman Bradley

    Photos added 12 April 2020

    1. 26 November 1942
    Thanksgiving Menu Cover

    2. Crew names and Thanksgiving menu

    3. 25 December 1942
    Christmas Menu Cover

    1. Crew names and Christmas menu

    There is no DANFS history available for PC-570
    Additional Resources and Web Sites of Interest
    Patrol Craft Sailors Association

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    This page created and maintained by Joseph M. Radigan
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