Please report any broken links or trouble you might come across to the Webmaster. Please take a moment to let us know so that we can correct any problems and make your visit as enjoyable and as informative as possible.

NavSource Online:
Submarine Chaser Photo Archive


Call sign:
Nan - William - Victor - Xray


SC-497 Class Submarine Chaser:

  • Laid down 27 February 1942 by W.A. Robinson Inc., Ipswich, MA
  • Launched 27 July 1942
  • Commissioned PC-677, 19 August 1942
  • Reclassified SC-677 in April 1943
  • Visited Auckland, New Zealand 15 - 26 October 1944
  • Struck from the Naval Register 8 January 1946
  • Scrapped of 1 March 1946.


  • Displacement 148 t.
  • Length 110' 10"
  • Beam 17'
  • Draft 6' 6"
  • Speed 15.6 kts.
  • Complement 28
  • Armament: One 40mm mount, two .50 cal. machine guns, and two depth charge projector "Y Guns"
  • Propulsion: Two 880bhp General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    SC-677 299k Line drawing from U.S. Small Combatants: An Illustrated Design History by Norman Friedman Robert Hurst

    Commanding Officers
    01LTJG F. M. Dunlap, USNR1945
    Courtesy of Joe Radigan

    There is no DANFS history available for SC-677
    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

    Comments, Suggestions, E-mail Webmaster /b>

    This page created by Joseph M. Radigan and maintained by Tom Bateman
    All pages copyright NavSource Naval History