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NavSource Online:
Motor Gunboat/Patrol Gunboat Photo Archive


Call sign:
Nan - Fox - Nan - Charlie


SC-497 Class Submarine Chaser/PGM-1 Class Motor Gunboat:

  • Laid down 6 February 1943 as PC-1071 by the Mathis Yacht Building Co., Camden, New Jersey
  • Reclassified as SC-1071 in April 1943
  • Launched 20 May 1943
  • Commissioned USS SC-1071, 8 June 1943
  • Reclassified as a Motor Gunboat, PGM-6, 10 December 1943
  • During April - June 1944 she participated in the consolidation of the northern Solomon Islands area. A year later, in April 1945 she took part in landings on Mindanao in the southern Philippines
  • Decommissioned 17 January 1946
  • Struck from the Naval Register 25 February 1946
  • Transferred to the State Department, Foreign Liquidation Commission 7 May 1947
  • Fate unknown.


  • Displacement 87 t.
  • Length 110' 10"
  • Beam 23'
  • Draft 10' 10"
  • Speed 21 kts.
  • Complement 28
  • Armament: One 3"/23 gun mount, one 40mm gun mount, and four twin .50 cal. machine guns
  • Propulsion: Two 1,540bhp General Motors (Electro-Motive Div.) 16-184A diesel engines, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    PGM-6 191k Photographed by the South Coast Company, Newport Beach, California, in January 1944, after completion of her conversion from USS SC-1071. Note armament of eight .50 caliber machine guns in four twin mounts amidships, a 3"/23 high-angle gun forward and a single 40mm gun aft
    National Archives photo
    Original photos: Naval Historical Center
    Replacement photos: Dan Treadwell
    PGM-6 116k Photographed by the South Coast Company, Newport Beach, California, in January 1944.
    National Archives photo
    PGM-6 134k National Archives photos Dan Treadwell
    PGM-6 127k
    PGM-6 173k

    Commanding Officers
    01LTJG Thomas Fowler Diack, Jr., USNR8 June 1943 - 24 October 1944
    02LTJG Robert Cecil Marks, USNR24 October 1944 - 14 February 1945
    03LTJG Gordon Elmer Hoyt, USNR14 February 1945 - 5 September 1945
    04LTJG Charles Herbert Harker, Jr., USNR5 September 1945 - 17 January 1946
    Courtesy Joe Radigan and Wolfgang Hechler

    There is no DANFS history available for PGM-6
    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 110' Submarine Chaser (SC) Photo Index Back to the Motor Gunboat (PGM) Photo Index

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    This page created by Joseph M. Radigan and maintained by Tom Bateman
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