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  USS Ransom (AM-283/MSF-283) ARM DM-12 / ARM Teniente Juan de la Barrera C55
Admirable-class minesweeper

650 Tons
184' 6" x 33' x 9' 9"
1 x 3"/50 cal gun
2x2 40mm AA guns
1 x Hedgehog mortar
2 x Depth Charge tracks

Ship History
Built by General Engineering and Dry Dock Company in San Francisco. Laid down April 24, 1943 as Admirable-class minesweeper. Launched September 18, 1943 as USS Ransom (AM-283) sponsored by Mrs. Dwight H. Dexter. Commissioned August 5, 1944 in the U.S. Navy (USN) with Lt. Comdr. William N. McMillen in command and conducted a shake down cruise off California then proceeded to Pearl Harbor arriving October 15, 1944.

Wartime History
On October 15, 1944 departed bound for Pearl Harbor arriving a week later then escorted a convoy back to the west coast. Afterwards, escorted convoys to Eniwetok, Ulithi and Kossol Roads arriving January 12, 1945. Afterwards, conducted anti-submarine patrols off Peleliu.

Between February 1, 1945 until February 18, 1945 patrolled the entrance to Kossol Roads performing screening patrols between Kossol Roads to Peleliu. Afterwards, proceeded to Ulithi. On March 19, 1945 departs with Task Unit 52.5.3 (TU 52.5.3) bound for Okinawa. Starting on March 25, 1945 began mine sweeping off Okinawa and faced enemy aircraft and coastal defenses.

On April 6, 1945 while rescuing 52 survivors of USS Rodman (DMS-21) claimed to shoot down three Japanese kamikaze aircraft. The third released a bomb that caused some minor damage aboard Ransom. On April 18, 1945 relieved from anti-aircraft defense and anti-submarine patrol duty. On April 22, 1945 damaged by a bomb released by a D3A Val dive bomber that landed 10' off her port quarter but remained on duty until the end of June 1945.

On July 4, 1945 resumed mine sweeping operations in the East China Sea and swept seven mines. On August 6, 1945 withdrew to Leyte for overhaul and repairs and by the end of the month returned to Okinawa. Departed with Task Group 52.4 (TG 52.4) to Japan. On September 9, 1945 began mine sweeping off Nagasaki. On September 21, 1945 mine sweeping in Bungo Suido. During the month, cleared 73 mines then departed to Kure then across the Pacific back to the west coast arriving November 20, 1945. For her World War II service earned three battle stars.

Departed the west coast and on December 30, 1945 transiting the Panama Canal then arrived at New Orleans for overhaul. On March 3, 1947 decommissioned at Orange, Texas and was in reserve fleet for the next four years. On March 16, 1945 recommissioned and assigned to the Atlantic Fleet and operated from Charleston, Norfolk and Yorktown, New England to the Caribbean. In June 1953 decommissioned at Charleston and proceeded to Orange, Texas arriving September 22, 1953 as part of the Atlantic Reserve Fleet. On February 7, 1955 reclassified as MSF-283. During November 1958 moved to Florida. On May 1, 1962 struck from the Navy Register.

Mexican Navy
During 1962 transferred to Mexico for use by the Armada de México (Mexican Navy). Commissioned as ARM DM-12. Later renamed ARM Teniente Juan de la Barrera (C55). Officially stricken during 2000.

During October 2000 sunk by then Mexican President Ernesto Zedillo the west coast of Cozumel Island in as part of the Parque Marino Arrecifes de Cozumel (Cozumel Marine Park) as an artificial reef and SCUBA dive site.

The vessel is upright on a sandy bottom at 75'. On October 21-22, 2005, Hurricane Wilma impacted the area as a Category 4  hurricane that broke the shipwreck into pieces leaving only the aft section upright and intact. The shipwreck is home to nurse sharks, rays, eels, barracudas, groupers, jacks and sardines.

Note, some sources list the ship's code as "C-55"
NavSource - USS Ransom AM-283 / MSF-283

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Last Updated
August 4, 2020


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