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Submarine Chaser Photo Archive
Nan - William - Roger - Able
SC-646 served the Navies of the United States and the Soviet Union.
SC-497 Class Submarine Chaser:Laid down 23 September 1941 by the Robinson Marine Construction Co., Benton Harbor, MILaunched 21 May 1942Commissioned USS PC-646, 1 July 1942Reclassified SC-646 in April 1943Transferred to the Soviet Union 26 May 1945 and reclassified BO-310Placed in service 17 July 1945Assigned to the Soviet Pacific Fleet 30 July 1945Participated in the liberation of South Sakhalin Island, Japan in August 1945Placed out of service 8 July 1950 and reclassified to a Raid boat, RK-1483Reclassified 23 June 1951 as a Messenger Ship and named IrtekPlaced out of service 25 June 1956 and sunk in the Strait of Tartary off Sakhalin Island.
Specifications:Displacement 148 t.Length 110' 10"Beam 17'Draft 6' 6"Speed 21 kts.Complement 28Armament: One 40mm gun mount, two .50 cal. machine guns, two depth charge projector "Y Gun," and two depth charge tracksPropulsion: Two 1,540bhp General Motors (Electro-Motive Div.) 16-184A diesel engines, two shafts.
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for full size image
||Exploded view of SC-497 class Subchaser.
||© 1997 Theodore R. Treadwell
There is no DANFS history available for SC-646
Additional Resources and Web Sites of Interest
Patrol Craft Sailors Association
This page created and maintained by Joseph M. Radigan|