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NavSource Online:
Submarine Chaser Photo Archive


Call sign:
Nan - William - Mike - Zebra


SC-497 Class Submarine Chaser:

  • Laid down 27 January 1942 by the Mathis Yacht Building Co., Camden, NJ
  • Launched 19 June 1942
  • Commissioned USS PC-631, 19 August 1942
  • Reclassified SC-631 in April 1943
  • Struck from the Naval Register 19 December 1945
  • Transferred to Maritime Commission 5 March 1948
  • Fate unknown.


  • Displacement 958 t.
  • Length 110' 10"
  • Beam 17' 9"
  • Draft 6' 6"
  • Speed 21 kts.
  • Complement 28
  • Armament: One 40mm gun mount, one/two twin mount .50 cal. machine guns, two/three depth charge projector "K Guns," 14 depth charges with six single release chocks and two sets Mk 20 Mousetrap rails with four
    7.2 projectiles
  • 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-631 84k c. October 1944
    Leyte Gulf, Philippines
    Alongside USS Erben (DD 631)
    Theodore Wojcik

    There is no DANFS history available for SC-631
    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

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    This page created by Joseph M. Radigan
    All pages copyright NavSource Naval History