USS Block Island (CVE-21)

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Career
Laid down:	19 January 1942
Launched:	1 May 1942
Commissioned:	8 March 1943
Fate:	sunk 29 May 1944
General Characteristics
Displacement:	7,800 tons
Length:	495.66 ft (151 m)
Beam:	111.5 ft (34 m)
Draft:	26 ft (7.9 m)
Speed:	18 knots (33 km/h)
Complement:	890 officers and men
Armament:	2 x 5 inch (127 mm) gun
Aircraft:	24

The second USS Block Island (CVE-21) (previously AVG-21 then later ACV-21) was launched 6 June 1942 by Seattle-Tacoma Shipbuilding Corp., Seattle, Washington, under a Maritime Commission contract; sponsored by Mrs. H. B. Hutchinson, wife of Commander Hutchinson; transferred to the United States Navy 1 May 1942; and commissioned 8 March 1943 Captain L. C. Ramsey in command. Originally classified AVG-21, she became ACV-21, 20 August 1942, and CVE-21, 15 July 1943.

Departing San Diego in May 1943 Block Island steamed to Norfolk, Virginia, to join the Atlantic Fleet. After two trips from New York to Belfast, Ireland, during the summer of 1943 with cargoes of Army fighters, she operated as part of a hunter-killer team. During her four anti-submarine cruises Block Island's planes sank two submarines: U-220 in 48°53' N., 33°30' W., 28 October 1943 and U-1059 in 13°10' N., 33°44' W., 19 March 1944. She shared credit with Corry (DD-463) and Bronstein (DE-189) for the sinking of U-801 in 16°42' N., 30°20' W., 17 March 1944 and with Buckley (DE-51) for U-66 sunk 6 May 1944 in 17°17' N., 32°29' W. Three of Block Island's escorts, Thomas (DE-102), Bostwick (DE-103) and Bronstein sank U-709 on 1 March 1943 and the same day Bronstein got U-603.

Block Island was torpedoed off the Canary Islands at 2013, 29 May 1944. The U-boat U-549 had slipped undetected through her screen. The submarine put one and perhaps two torpedoes into the carrier before being sunk herself by the Eugene E. Gilmore (DE-686) and Bogue-class escort carrier |- |align="center"|Royal Navy |- |align=center| Battler | Attacker | Hunter | Chaser | Fencer | Stalker | Pursuer | Striker | Searcher | Ravager | Tracker | Slinger | Atheling | Emperor | Ameer | Begum | Trumpeter | Empress | Khedive | Speaker | Nabob | Premier | Shaha | Patroller | Rajah | Ranee | Trouncer | Thane | Queen | Ruler | Arbiter | Smiter | Puncher | Reaper |- |align="center"|United States Navy |- |align="center"| Bogue | Card | Copahee | Core | Nassau | Altamaha | Barnes | Block Island | Breton | Croatan | Prince William |- |align=center|
List of escort aircraft carriers of the United States Navy |- |align=center|List of escort aircraft carriers of the Royal Navy |}