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NavSource Online:
Submarine Chaser Photo Archive


Call sign:
Nan - Xray - Peter - Charlie


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

  • Laid down 16 July 1942 as PC-757 by the Robinson Marine Construction Co., Benton Harbor, MI
  • Reclassified SC-757 in April 1943
  • Launched 17 June 1943
  • Commissioned SC-757, 12 August 1943
  • Converted to a Motor Gunboat and reclassified PGM-2 in December 1943
  • Decommissioned in January 1946
  • Struck from the Naval Register 5 June 1946
  • Transferred to the State Department, Foreign Liquidation Commission at Subic Bay, Philippines
  • Sold in May 1947
  • Fate unknown.


  • Displacement 148 t.
  • Length 110' 10"
  • Beam 17'
  • Draft 6' 6"
  • Speed 21 kts.
  • Complement 28
  • Armament: One 40mm gun mount, two .50 cal. machine guns, two depth charge projector "K Gun," and two depth charge tracks
    After PGM conversion: One 3"/23 mount and one 40mm mount or two 40mm mounts 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
    SC-757 144k Photographed by her builder, Robinson Marine Construction Co., Benton Harbor, Michigan, circa August 1943
    U.S. Navy photos NH 96484 and NH 96485
    Naval Historical Center
    SC-757 111k
    SC-757 127k Richard Miller, BMCS, USNR, Ret.
    SC-757 78k c. 1943
    Line drawing by A. D. Baker, III from U.S. Small Combatants: An Illustrated Design History by Norman Friedman
    Robert Hurst

    Commanding Officers
    01LT David C. Anderson, USNR12 August 1943
    02LTJG Ralph W. Raasch, USNRDecember 1944
    03LTJG Albert J. Allman, Jr., USNRJuly 1945 - December 1945
    04LT Edward B. Olsen, USNRDecember 1945 - January 1946
    Courtesy Joe Radigan and Wolfgang Hechler

    There is no DANFS history available for PGM-2
    Additional Resources and Websites of Interest
    Patrol Craft Sailors Association
    "Subchaser in the South Pacific"
    by CAPT J. Henry Doscher, USN, Ret.
    Back to the Main Photo Index Back to the Patrol Craft/Gunboat/Submarine Chaser Ship Index Back To The Submarine Chaser (110') (SC) Photo Index Back To The Motor Gunboat (PGM) Photo Index

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    This page created by Gary P. Priolo and maintained by Tom Bateman
    All pages copyright NavSource Naval History