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NavSource Online:
Submarine Chaser Photo Archive


Call sign:
Nan - William - Yoke - Dog


SC-685 served the Navies of the United States and the Soviet Union.

SC-497 Class Submarine Chaser:

  • Laid down 9 July 1942 as PC-685 by the American Cruiser Co., Trenton, MI
  • Launched 25 March 1943
  • Reclassified SC-685 in April 1943
  • Commissioned USS SC-685, 25 May 1943
  • Transferred to the Soviet Union 19 July 1945 and reclassified BO-302
  • Assigned to the Pacific Fleet 30 July 1945
  • Participated in the liberation of South Sakhalin Island, Japan in August 1945
  • Sank 18 December 1947 after grounding on rocks in the Bay of Krillon
  • Raised 24 December 1947
  • Sank 28 February 1948 while under tow.


  • 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 "Y Gun," and two depth charge tracks
  • 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-685 126k 24 May 1943
    Brooklyn Navy Yard
    Astern of an unidentified Submarine Chaser
    National Archives photo
    John Chiquoine

    There is no DANFS history available for SC-685
    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 and maintained by Tom Bateman
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