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 - Uncle - King - Yoke


SC-497 Class Submarine Chaser:

  • Laid down 6 May 1941 by the Seabrook Yacht Corp., Houston, TX
  • Launched 31 January 1942
  • Commissioned USS PC-502, 3 June 1942
  • Reclassified as SC-502 in July 1942
  • She had patrol duties in the Tulagi-Lunga Point and Guadalcanal areas as well as the Russell Islands
  • Visited Auckland, New Zealand 6 - 18 January 1945
  • SC-502 was cited for its part in rescuing the crew of a sinking SC in the Pacific while en route back to Pearl Harbor in late July of 1945
  • Decommissioned in October 1945 at San Francisco, CA
  • Struck from the Naval Register 19 December 1945
  • Transferred to the War Shipping Administration 21 May 1948
  • Acquired in 1952 by John B. R. Wilson of Sacramento, CA for use as a fishing boat and named Lois B.
  • Acquired in 1956 by George A. Almand of San Diego, CA
  • Acquired in 1962 by the Chile-California Corp. of San Diego
  • Out of documentation in 1989
  • Fate unknown.


  • 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, two depth charge projector "Y Gun," and two depth charge tracks
  • 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-497 161k Exploded view of SC-497 class Subchaser © 1997 Theodore R. Treadwell

    Commanding Officers
    01LTJG Roy D. Evans, Jr., USNR3 June 1942
    02LTJG R. L. Cooper, USNR1945
    Courtesy Joe Radigan

    There is no DANFS history available for SC-502
    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 Type Index Back to the 110' Submarine Chaser (SC) Photo Index

    Comments, Suggestions, E-mail Webmaster

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