The USS Annapolis (PF-15) was a Tacoma-class patrol frigate constructed for the United States Navy during World War II. Laid down on 20 May 1943 by the American Ship Building Company in Lorain, Ohio, and launched on 16 October 1943, she was officially commissioned on 4 December 1944 in Galveston, Texas. The ship featured the typical design of Tacoma-class frigates, which were designed for convoy escort and patrol duties during the war. Following her commissioning, USS Annapolis underwent shakedown training in the waters surrounding Bermuda from December 1944 to January 1945. After arriving in Norfolk, Virginia, in January 1945, she completed post-shakedown repairs and set out to escort convoys across the Atlantic. Her initial missions included shepherding convoys to and from North Africa, notably arriving at Oran, Algeria, in March 1945 and returning to the United States in late March. Throughout her service, she alternated between escort duties along the U.S. East Coast and North Africa, maintaining vital supply and troop movements during the final months of World War II. In June 1945, USS Annapolis moved to the Panama Canal Zone, operating from the submarine base at Coco Solo until early August. She then relocated to the U.S. West Coast, arriving at San Pedro, California, to serve with the Pacific Fleet. She was briefly involved in Project Hula, a secret program to transfer ships to the Soviet Navy, but the transfer was suspended in September 1945. Annapolis and her sister ship USS Bangor were the only two patrol frigates scheduled for transfer that did not go to the Soviets; instead, they transported personnel back to the United States. USS Annapolis was decommissioned on 29 May 1946 at Bremerton, Washington, and struck from the Navy list in June. She was sold to the Mexican government in November 1947, where she was renamed ARM General Vicente Guerrero, later known as ARM Rio Usumacinta. The vessel was scrapped in 1964. Her service highlights her role as a convoy escort and patrol vessel during WWII, contributing to Allied maritime operations in both Atlantic and Pacific theaters.

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