The USS Block Island (CVE-21/AVG-21/ACV-21) was a Bogue-class escort aircraft carrier built for the United States Navy during World War II. Launched on June 6, 1942, by the Seattle-Tacoma Shipbuilding Corporation in Tacoma, Washington, she was transferred to the Navy on May 1, 1942, and commissioned on March 8, 1943, under Captain Logan C Ramsey. Her design allowed for a complement of up to 24 fighter and anti-submarine aircraft, typically a mix of Grumman Wildcats and Avengers, with the capacity to carry up to 90 aircraft in ferry configurations. The ship played a vital role in the Battle of the Atlantic, operating as part of hunter-killer groups tasked with combating German U-boats. She formed a notable group with four veteran destroyers—Paul Jones, Parrott, Barker, and Bulmer—and participated in multiple anti-submarine missions. During her service, her aircraft sank four U-boats: U-220, U-801, U-1059, and U-66, through a combination of aircraft attacks and coordinated surface actions. One of her most significant successes was the sinking of U-220 on October 28, 1943, where her aircraft contributed to the submarine's destruction with depth charges, resulting in the loss of the entire crew. Tragically, on May 29, 1944, the USS Block Island was torpedoed off the Canary Islands by U-549. The attack caused severe damage, resulting in her sinking and the loss of six crew members. Despite the damage, 951 crew members were rescued by escorting destroyers. The ship’s anti-submarine efforts earned her two battle stars for her wartime service. Overall, USS Block Island stands out as the only American carrier sunk in the Atlantic during World War II, highlighting her active engagement in critical naval battles and her significant contribution to Allied anti-submarine warfare efforts.

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