USS Block Island (CVE-21/AVG-21/ACV-21) was a for the United States Navy during World War II. She was the first of two escort carriers named after Block Island Sound off Rhode Island and was the only American carrier sunk in the Atlantic during the war.
Originally classified AVG-21, she became ACV-21 on 20 August 1942, and CVE-21 on 15 July 1943.[1] She was named after Block Island, an island in Rhode Island east of New York.[2]
Block Island was launched on 6 June 1942 by Seattle-Tacoma Shipbuilding Corporation in Tacoma, Washington, under a Maritime Commission contract; sponsored by Mrs H. B. Hutchinson, wife of Commander Hutchinson. She transferred to the United States Navy on 1 May 1942 and commissioned on 8 March 1943, with Captain Logan C Ramsey in command.
Block Island had capacity for up to 24 fighter and anti-submarine aircraft normally a mixture of Grumman Wildcat and Avengers with composition dependent upon the mission. The squadron had the callsign VC-25 USN (Composite Squadron Twenty Five).[3]
When she was utilised in a ferry role, she could carry up to 90 aircraft depending on aircraft type.
Departing San Diego, California in May 1943, Block Island steamed to Norfolk, Virginia, to join the Atlantic Fleet. She then made two trips from New York City to Belfast, Ireland, carrying Republic P-47 Thunderbolt fighters.
USS Bogue (CVE-9) and had pioneered new anti-submarine warfare (ASW) techniques in the Battle of the Atlantic, forming hunter-killer groups to destroy German submarines. Block Island formed another group with four veteran flush-deck destroyers,,,, and as Task Group (TG) 21.1. During her four anti-submarine cruises, Block Islands aircraft sank two submarines and shared another two with her escorts.
On 28 October 1943, her Avenger and Wildcat aircraft sank with depth charges at 48.8833°N 63°W, fifty-six men were killed (all hands).
On 17 March 1944, Block Island, destroyer, and destroyer escort sank at 16.7°N -50°W. Nine of the boat's crew were killed and 47 taken prisoner.
On 19 March 1944, her aircraft sank in 13.1667°N -77°W southwest of the Cape Verde Islands. U-1059 was transporting torpedoes to the Monsun Gruppe ("Monsoon Group"), a group of U-boats that operated in the Pacific and Indian Ocean. Of U-1059’s crew, 47 were killed and 8 captured.[4]
On 6 May 1944, Block Island and destroyer escort sank at 17.2833°N -61°W.[1] The boat lost 24 killed and there were 36 survivors, later transferred to Block Island.
Block Island was torpedoed off the Canary Islands at 20:13 on 29 May 1944 by who had slipped through her screen of escorts. U-549 fired three T-3 torpedoes, hitting her with two and severely damaging the ship which later sank.[5] [6] Six crewmen were killed in the attack; the remaining 951 were picked up by the escorting destroyers.[1]
attacked and sank U-549 using her hedgehog spigot mortar system and depth charges in 31.2167°N -26°W.[1]
When Block Island was torpedoed, six of her Wildcats (VC-55) were in the air and had no place to land. They headed for the Canary Islands but all had to ditch at night after running out of fuel and only two of the pilots were rescued.[7]
Former crewmembers held several reunions, the final one in Fargo, North Dakota in 2019.[8]
Block Island received two battle stars for her service.