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NavSource Online: Mine Warfare Vessel Photo Archive

CMc-4 / CM-9 / ACM-10 Monadnock


Monadnock Class Minelayer: Laid down, 1938 by the Pusey and Jones Corp., Wilmington, DE as Cavalier; Launched 1938; Renamed Monadnock (CMc 4), 14 May 1941; Acquired by the Navy from the Philadelphia and Norfolk SS Co., Philadelphia, PA, 9 June 1941 and converted to a Coastal Mine Layer at the Bethlehem Steel Co., Atlantic Works, East Boston, MA; Commissioned USS Monadnock (CMc-4), 2 December 1941; Reclassified Mine Layer CM-9, 1 May 1942; Reclassified, 10 July 1945 as Auxiliary Mine Layer (ACM-10), 10 July 1945 at San Francisco, CA; Decommissioned, 3 June 1946 at San Francisco CA; Struck from the Naval Register, 3 July 1946; Transferred to the Maritime Commission for disposal, 20 June 1947; Sold into mercantile service 1949, renamed Karukara, named changed in 1952, Monte de la Esperanza. Fate unknown. Monadnock earned three battle stars for World War II service.

Specifications: Displacement 3,110 t.; Length 292'; Beam 48' 6'; Draft 13' 6"; Speed 17.5 kts; Complement 201; Armament two 3"/50s and two twin 40mm; Propulsion General Electric geared turbines, 4,000shp, one shaft.
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Monadnock 31k Seen here as CM-9. Gunter Krebs

View the Monadnock (CMc 4/CM-9/ACM 10)
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

Additional Resources and Web Sites of Interest
Naval Minewarfare Association
Association of Minemen
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