Q-ships, also known as Q-boats, decoy vessels, special service ships, or mystery ships, were heavily armed merchant ships with concealed weaponry, designed to lure submarines into making surface attacks. This gave Q-ships the chance to open fire and sink them. The use of Q-ships contributed to the abandonment of cruiser rules restricting attacks on unarmed merchant ships and to the shift to unrestricted submarine warfare in the 20th century.
HMS Black Swan, was the name ship of the Black Swan-class sloops of the Royal Navy. This class was admired for its sea-going qualities.
The Flower-class corvette was a British class of 294 corvettes used during World War II by the Allied navies particularly as anti-submarine convoy escorts in the Battle of the Atlantic. Royal Navy ships of this class were named after flowers.
HMS Amethyst was a modified Black Swan-class sloop of the Royal Navy. She was laid down by Alexander Stephen and Sons of Linthouse, Govan, Scotland on 25 March 1942, launched on 7 May 1943 and commissioned on 2 November 1943, with the pennant number U16. After the Second World War she was modified and redesignated as a frigate, and renumbered F116.
The Black Swan class and Modified Black Swan class were two classes of sloop of the Royal Navy and Royal Indian Navy. Twelve Black Swans were launched between 1939 and 1943, including four for the Royal Indian Navy; twenty-five Modified Black Swans were launched between 1942 and 1945, including two for the Royal Indian Navy; several other ships were cancelled.
HMS Woodpecker, pennant number U08, was a Black Swan-class sloop of the Royal Navy. She was active during the Second World War and was a successful anti-submarine warfare vessel, being credited with the destruction of six U-boats.
HMS Magpie, pennant number U82, was a Royal Navy Modified Black Swan-class sloop launched in 1943 and broken up in 1959. She was the seventh Royal Navy ship to bear the name. She was reclassified as a frigate in 1947, receiving a new pennant number F82. The ship was the only vessel commanded by Prince Philip, Duke of Edinburgh, who took command on 2 September 1950, when he was 29.
HMS Mallow was a Flower-class corvette commissioned into the Royal Navy that served as a convoy escort during World War II; with the Royal Navy in 1940–1944, and with the Royal Yugoslav Navy-in-exile in 1944–1945. In Yugoslav service she was renamed Nada. Her main armament was a single 4-inch (102 mm) Mk IX naval gun, although a significant number of secondary and anti-aircraft guns were added towards the end of the war. During the war she escorted a total of 80 convoys whilst in British service, sinking one German U-boat, and escorted another 18 convoys whilst in Yugoslav service. After the war she served in the fledgling Yugoslav Navy as Nada then Partizanka, before being returned to the Royal Navy in 1949. Later that year she was transferred to the Egyptian Navy in which she served as El Sudan until she was decommissioned in 1975.
HMS Marigold was a Flower-class corvette of the Royal Navy. She was launched on 4 September 1940 and was sunk by an Italian air-dropped torpedo on 9 December 1942.
HMS Stork (L81) was a Bittern-class sloop of the Royal Navy. She was active during the Second World War, serving in convoy escort groups, and was a successful anti-submarine warfare vessel, being credited with the destruction of four U-boats.
HMS Godetia was the second Flower-class corvette with that name built for the Royal Navy. She served during the Second World War as part of the Section Belge of the Royal Navy (RNSB). With the liberation of Belgium in late 1944, the vessel was returned to the United Kingdom. In common with other Flower-class corvettes, the ship was named after an eponymous flower.
HMS Ekins (K552) was a British Captain-class frigate of the Royal Navy that served during World War II. Originally constructed as a United States Navy Buckley class destroyer escort, she served in the Royal Navy from 1943 to 1945.
HMS Viscount was a V-class destroyer of the British Royal Navy that saw service in the final months of World War I and in World War II.
HMS Deptford was a Grimsby-class sloop of the British Royal Navy. Built at Chatham Dockyard in the 1930s, Deptford was launched in 1935 and commissioned later that year. The ship saw early service on the Persian Gulf station, but the outbreak of the Second World War saw Deptford serving as a convoy escort in the North Atlantic and the Mediterranean, sinking a German U-boat in 1941. She survived the war and was scrapped in 1948.
HMS Fleetwood was a Grimsby-class sloop of the Royal Navy. Built at Devonport Dockyard in the 1930s, Fleetwood was launched in March 1936 and commissioned in November that year. She served in the Red Sea until the outbreak of the Second World War. Fleetwood served as a convoy escort during the war, which she survived, and sank the German submarines U-528 and U-340. Post-war, the ship served as a radar training ship, remaining in use until 1959, when she was scrapped.
HMS Weston was a Shoreham-class sloop of the British Royal Navy. Weston was built at Devonport Dockyard in 1931–1933.
HMS Lark was a modified Black Swan-class sloop of the Royal Navy. She was laid down by Scotts Shipbuilding and Engineering Company, Greenock on 5 May 1942, launched on 28 August 1943 and commissioned on 10 April 1944, with the pennant number U11.
HMS Crane was a modified Black Swan-class sloop of the Royal Navy. She was laid down by William Denny and Brothers, Dumbarton on 13 June 1941, launched on 9 November 1942 and commissioned on 10 May 1943, with the pennant number U23. The saw active service during the Second World War, performing convoy escort roles in the Atlantic initially before supporting the Normandy landings. In the final months of the war, Crane joined the British Pacific Fleet with whom the vessel saw service during the Battle of Okinawa. Post war, Crane remained in south-east Asia and took part in hostilities during the Korean War. She was redeployed to the Middle East during the Suez Crisis before returning to Asia for service during the Malayan Emergency. Crane was withdrawn from service in the early 1960s and scrapped in 1965.
HMS Cygnet was a modified Black Swan-class sloop of the Royal Navy. She was laid down by Cammell Laird, Birkenhead on 30 August 1941, launched on 28 July 1942 and commissioned on 1 December 1943, with the pennant number U38.
HMS Petunia (K79) was a Flower-class corvette that served in the Royal Navy and was built by Henry Robb in 1940. She was named after Petunia. Commissioned in 1940, rammed and sold to the Chinese Nationalist Government and renamed ROCS Fu Bo.
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