The USS Magnet (AM-260) was an Admirable-class minesweeper constructed by the American Shipbuilding Company in Lorain, Ohio. Laid down on March 13, 1943, and launched on June 5, 1943, the vessel was commissioned into the U.S. Navy on March 10, 1944. As an Admirable-class minesweeper, Magnet was designed to clear minefields in offshore waters, primarily serving during World War II. After commissioning, Magnet departed from Lorain, Ohio, and traveled down the Mississippi River en route to Norfolk, Virginia, arriving on April 17, 1944. Following a shakedown period in Chesapeake Bay, she was assigned to Mine Division 31. Her operational focus was in the South Atlantic, where she operated out of Recife, Brazil, for approximately nine months. During this time, she was responsible for sweeping the main shipping channels of South American ports, ensuring safe passage for allied vessels. Magnet also played roles in escorting convoys to and from the West Indies, patrolling harbors, and conducting antisubmarine training exercises. On March 10, 1945, Magnet was detached from the South Atlantic Forces and reassigned to task group TG 23.2 at Miami, Florida, where she served as a school ship until June 28, 1945. Subsequently, she sailed to Norfolk, and after a brief overhaul, returned to Miami. She was decommissioned there on August 28, 1945, and transferred to the Nationalist Chinese Government under the lend-lease agreement, commissioned as Yung Ning. The vessel was officially returned to the U.S. and transferred under the Military Assistance Program on February 7, 1948. She was struck from the Navy list on March 12, 1948, and is believed to have been scrapped. The USS Magnet's service highlights the crucial role of minesweepers in ensuring safe maritime navigation during wartime and exemplifies the ship's contribution to Allied naval operations in the South Atlantic theater.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.