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USS Cinchona (AN-12)
Career (USA) Naval jack of the United States (1908–1912) US flag 48 stars.svg
Name: USS Cinchona
Namesake: Various trees the dried bark of which produces quinine
Builder: Commercial Iron Works, Portland, Oregon
Laid down: as (YN-7), date unknown
Launched: 2 July 1941
Sponsored by: Mrs. W. Casey
Commissioned: 20 December 1942 as USS Cinchona (YN-7)
Decommissioned: 6 November 1946, at Vancouver, Washington
In service: 15 August 1941 as Cinchona (YN-7)
Reclassified: AN-12, 20 December 1944
Struck: date unknown
Homeport: Tiburon, California
Honors and
Two battle stars: under attack on Pearl Harbor, and the Mariana Islands operation
Fate: transferred to the U.S. Maritime Administration, 1 June 1961; sold for non-transportation use, 17 February 1976
General characteristics
Type: Aloe-class net laying ship
Tonnage: 660 tons
Displacement: 850 tons
Length: 163' 2"
Beam: 30' 6"
Draft: 11' 8"
Propulsion: diesel engine, single propeller
Speed: 12 knots
Complement: 48 officers and enlisted
Armament: one single 3"/50 dual purpose gun mount; three single 20mm AA gun mounts; four .50 cal. machine guns; one y-gun

USS Cinchona (AN-12/YN-7) was an Aloe-class net laying ship which was assigned to serve the U.S. Navy during World War II with her protective anti-submarine nets.

Built in Portland, OregonEdit

Cinchona (YN-7) was launched 2 July 1941 by Commercial Iron Works, Portland, Oregon; sponsored by Mrs. W. Casey; outfitted by Puget Sound Navy Yard; and placed in service 15 August 1941, Lieutenant H. H. Breed, USNR, in charge.

World War II serviceEdit

Assigned to the 14th Naval District, she arrived at Pearl Harbor 17 October where she took up duty in net repair and replacement, salvage of gear lost or adrift, and maintenance of net and boom defenses.

Under attack at Pearl HarborEdit

During the Japanese attack on Pearl Harbor, 7 December 1941, Cinchona manned both her machine guns and her 3" gun, and, as the enemy repeatedly strafed her deck, she closed the gaps in the net defenses protecting the dry-docks.

Continuing her salvage operations in the Hawaiian group, Cinchona salvaged district patrol craft YP-108 off Lanai in June 1942, and in August escorted a motor torpedo boat convoy to Midway Islands, where she installed nets around the dock spaces, returning to Pearl Harbor early in September.

She was placed in commission 20 December 1942, her officer-in-charge Lieutenant T. A. Ingham receiving the title commanding officer. She continued local operations at Pearl Harbor, and on 20 January 1944 was redesignated AN-12.

Saipan operationsEdit

Cinchona arrived off newly invaded Saipan 16 June 1944. She conducted patrols, assisted LST-84 after an enemy bomb started a fire on board, then inspected the Japanese net line in Tanapag Harbor. She remained at Saipan on salvage and net operations until 18 November when she steamed to Guam and Ulithi to lay cables.

From 7 December 1944 to 30 June 1945 Cinchona conducted net operations, laid moorings, and aided in installing a pipeline at Guam.

Post-war activityEdit

Returning to the States 27 July, she conducted net operations at Long Beach, California, and out of Mare Island Naval Shipyard until 24 August 1946 when she sailed for Astoria, Oregon.

Post-war decommissioningEdit

Cinchona was placed out of commission in reserve 6 November 1946 at Vancouver, Washington.

Honors and awardsEdit

Cinchona received two battle stars for World War II service. The first was for her performance at Pearl Harbor while under attack by Japanese planes. The second was for her operating under dangerous conditions during the Mariana Islands operation.


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