HMS Cygnet was a modified Black Swan-class sloop of the Royal Navy, constructed by Cammell Laird in Birkenhead. Laid down on 30 August 1941 and launched on 28 July 1942, she was commissioned into service on 1 December 1943 with the pennant number U38. Her early testing and operational commissioning occurred in November 1942 at Tobermory, but she was damaged by an air attack on 9 December of that year, necessitating repairs at a commercial shipyard on the Clyde until March 1943. During her service in World War II, HMS Cygnet was primarily engaged in convoy escort duties across various theaters. In March 1943, she joined the 2nd Escort Group based in Liverpool, escorting a military convoy to Gibraltar. The following month, she transferred to the 7th Escort Group at Greenock to aid convoys threatened by U-boat attacks in the North Atlantic. She participated in convoy protection missions, including the safeguarding of the ONS 8 convoy in May 1943, and was involved in the Mediterranean during the preparations for the Allied landings of Sicily (Operation Husky) in June 1943. From early 1944, HMS Cygnet became part of the Home Fleet, playing a key role in protecting Arctic and Atlantic convoys. Notably, on 8 April 1944, she, along with HMS Crane, sank the German U-boat U-962 northwest of Cape Finisterre using depth charges. However, she was damaged by grounding upon entering Belfast on 13 April 1944, which temporarily removed her from operational duty during the Normandy landings. After repairs, she resumed convoy protection duties, including operations from Kola Bay until the end of the European war. In May 1944, her deployment was extended to the Pacific theater, with repairs and modifications undertaken at Leith. Unfortunately, during sea trials following her refit, she again grounded and required further repairs. The planned deployment to the Pacific was ultimately canceled after the atomic bombings of Hiroshima and Nagasaki, and Japan's surrender, bringing her active wartime service to a close.

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