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NavSource Online: Mine Warfare Vessel Photo Archive

Chatterer (MSC[O] 40)
ex-AMS-40
ex-YMS-415



Call sign:
November - Papa - Uniform - Whiskey


Chatterer served the Navies of the United States and Japan.
YMS-1 Class Auxiliary Motor Minesweeper: Laid down, 5 October 1943 by the Stadium Yacht Basin Inc., Cleveland, Ohio; Launched, 15 April 1944; Completed and commissioned USS YMS-415, 1 October 1944. She was assigned to the Pacific, where she participated in operations off Okinawa in June 1945. Following the Japanese surrender, YMS-415 was active in mine clearance efforts in the vicinity of Japan. She was named Chatterer and reclassified as a Motor Minesweeper, AMS-40, 11 March 1947. Stationed in Japan when the Korean War began in June 1950, Chatterer soon joined the effort to search for and clear enemy mine field's in the combat zone. She was retained in the Western Pacific after the conflict ended and was redesignated as a Coastal Minesweeper, Old, MSC(O)-40, 7 February 1955. Chatterer was transferred to Japan 16 April 1955 as Yurishima (MSC 661); in the Japanese Maritime Self-Defense Force; Returned to the U.S. Navy in 1967; Sold for scrap 1 May 1968.

Specifications: Displacement 270 t.; Length 136'; Beam 24' 6"; Draft 8'; Speed 15 kts; Complement 32; Armament one single 3"/50 gun mount, two 20mm, two dcp; Propulsion two 1,000 shp General Motors diesel engines, two shafts.

Click On Image
For Full Size Image		 Size Image Description Source
Chatterer 64k As YMS-415, c. 1945-46. San Francisco Bay.
U.S. Navy photo NH 79712		 Naval Historical Center
Chatterer 146k Mine Division 31 tied up at Yokosuka, following mine clearance activities off Korea. From left to right: Merganser (AMS-26); Osprey (AMS-28); Chatterer, and Mockingbird (AMS-27).
U.S. Navy photo 80-G-424597 original photo dated 30 November 1950 		Naval Historical Center
Defense 73k 8 October 1952
Laertes (AR-20) at Sasebo, Japan, with nine minesweepers and a harbor tug alongside. Ships nested to left of Laertes are (from left): Impeccable (AM-320); Gladiator (AM-319); Shoveler (AM-382); Defense (AM-317), and Devastator (AM-318). Those nested to right are (from left): Condor (AMS-5); Kite (AMS-22); Curlew (AMS-8); Chatterer, and Wallacut (YTB-420)
U.S. Navy photo 80-G-63229		 Naval Historical Center
View the Chatterer (AMS-40)
DANFS History entry located on the Haze Gray & Underway Web Site. The main archive for the DANFS Online Project.
Crew Contact And Reunion Information
U.S.Navy Memorial Foundation
Fleet Reserve Association
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Association of Minemen
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