HMS Folkestone was a Hastings-class sloop of the Royal Navy, constructed by Swan Hunter and Wigham Richardson Ltd. in Wallsend-on-Tyne. Laid down on 21 May 1929 and launched on 12 February 1930, she was commissioned on 25 June 1930 with the pennant number L22/U22. The vessel measured approximately 266 feet 4 inches (81.18 meters) in length overall, with a beam of 34 feet 1 inch (10.39 meters) and a draught of 11 feet 3 inches (3.43 meters) at full load. Her displacement was 1,045 long tons (1,062 tonnes) standard, rising to 1,640 long tons (1,670 tonnes) at full load. Propelled by two geared steam turbines powered by Admiralty three-drum boilers, Folkestone could reach a maximum speed of 16.5 knots (30.6 km/h). Her armament initially included two QF four-inch (102 mm) Mk V guns—one on a high-angle mount for anti-aircraft purposes and the other on a low-angle mount for surface targets—along with two 3-pounder saluting guns and four depth charges for anti-submarine warfare. The crew comprised around 100 officers and ratings. Throughout her service, HMS Folkestone was primarily tasked with patrol and escort duties across various stations. She was deployed to the Persian Gulf, joining the station in August 1930, and later operated on the China Station based in Hong Kong, where she was involved in protecting British interests during regional conflicts. She also served near North-east China and Singapore, with notable events including being near-missed by Japanese machine gun fire in 1939. During World War II, Folkestone was converted into an unarmed survey ship but was quickly rearmed as the war progressed. She participated in convoy escort operations in the North Atlantic, notably rescuing survivors from sunk merchant ships and engaging German U-boats. Her notable wartime actions include attacking and damaging U-333 near the Azores in August 1942, and participating in convoy battles such as SL 118 and UC 1, where she played a crucial role in anti-submarine warfare, sinking U-552 and damaging U-333. Folkestone underwent multiple refits and upgrades, including the addition of radar systems and the Hedgehog anti-submarine mortar. Her operational history reflects her importance in convoy escort and anti-submarine efforts during the Battle of the Atlantic. After the war, she was laid up in 1944, used for bomb trials, and ultimately sold for scrap in 1947, marking the end of her maritime service.

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