HMS Scarborough was a Hastings-class sloop of the Royal Navy launched in 1930. She served in the Second World War, especially as a convoy escort in the North Atlantic.
The Grimsby-class sloops were a class of 13 sloops-of-war laid down between 1933 and 1940. Of these, eight were built in the United Kingdom for the Royal Navy, four in Australia for the Royal Australian Navy and one for the Royal Indian Navy. Main armament was initially two 4.7-inch (120 mm) guns for RN ships and three 4-inch (100 mm) for Australian ships, but armament varied considerably between ships, and was increased later.
HMS Aberdeen was a Grimsby-class sloop in the British Royal Navy. Built in Devonport Dockyard, Plymouth, UK by Thornycroft, she was launched on 22 January 1936.
HMS Calcutta was a C-class light cruiser of the Royal Navy, named after the Indian city of Calcutta. She was part of the Carlisle group of the C class of cruisers. She was laid down by Vickers Limited at Barrow-in-Furness in 1917 and launched on 9 July 1918. Calcutta was commissioned too late to see action in the First World War and was converted to an anti-aircraft cruiser in 1939. Calcutta served during the Norwegian Campaign and the evacuation from Dunkirk in 1940. She was used to escort allied convoys across the Mediterranean and was sunk on 1 June 1941 by Luftwaffe aircraft off Alexandria, Egypt.
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 Folkestone was a Hastings-class sloop of the Royal Navy that saw action in World War II. She was built by Swan Hunter and Wigham Richardson Ltd. of Wallsend-on-Tyne, laid down on 21 May 1929 and launched on 12 February 1930. She was commissioned on 25 June 1930 under the pennant number L22/U22.
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 Bideford was a Royal Navy Shoreham-class sloop. She was named after the town of Bideford in Devon and was launched on 1 April 1931.
The third HMS Penzance (L28) was a Hastings-class sloop launched in 1930, and torpedoed and sunk in 1940 whilst on convoy protection duty by the German submarine U-37 with the loss of 90 of her 104 crew. She was named after the Cornish port of Penzance and was the third Royal Navy ship to bear that name.
HMS Douglas was an Admiralty type flotilla leader of the British Royal Navy. Built by Cammell Laird, Douglas commissioned in 1918, just before the end of the First World War. During the Second World War, Douglas served with Force H out of Gibraltar and as a convoy escort. She was sold for scrap in March 1945.
HMS Lowestoft was a Grimsby-class sloop of the Royal Navy. Built at Devonport Dockyard in the 1930s, Lowestoft was launched in 1934 and commissioned later that year. She served on the China Station, based at Hong Kong until the outbreak of the Second World War. Lowestoft served as a convoy escort during the war, both in the North Atlantic and off the west coast of Africa.
HMS Campbell was an Admiralty type flotilla leader of the British Royal Navy. Built by Cammell Laird, Douglas commissioned in December 1918, just after the end of the First World War. During the Second World War, Campbell mainly served with as a convoy escort, particularly on the East Coast of the United Kingdom. She survived the war, and was sold for scrap in 1947.
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 Londonderry was a Grimsby-class sloop of the Royal Navy. Built at Devonport Dockyard in the 1930s, Londonderry was launched in early 1935 and commissioned later that year. She served in the Red Sea and the South Atlantic until the outbreak of the Second World War. Londonderry served as a convoy escort during the war, which she survived. The ship was sold for scrap 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 Shoreham was the lead ship of the Shoreham-class of sloops built for the British Royal Navy. Completed in 1931, Shoreham served pre-war in the Persian Gulf. In the Second World War she served in the Gulf and Red Sea, the Mediterranean and the Indian Ocean. She survived the war and was sold for commercial use in 1946 and was scrapped in 1950.
HMS Milford was a Shoreham-class sloop of the British Royal Navy built at Devonport Dockyard in 1931–1932. After peacetime operations on the Africa Station during the 1930s, Milford served during the Second World War. Her wartime service between 1939 and 1943 mostly involved convoy escort duties off Africa, but in 1940 she also took part in Operation Catapult and Operation Menace, both targeting Vichy French forces at Dakar, Senegal, and in the Battle of Gabon, in which she damaged the Vichy French submarine Poncelet so severely that Poncelet scuttled herself. After training duty in 1944 and 1945, Milford was placed in reserve in 1946 and sold in 1949.
HMS Falmouth was a Shoreham-class sloop of the British Royal Navy. Falmouth was built at Devonport Dockyard in 1931–1932. The ship was used as a despatch vessel on the China Station in the 1930s, but the Second World War resulted in her being rearmed, and used for escort duties. From 1952, Falmouth was used as a stationary drillship until she was scrapped in 1968.
HMS Weston was a Shoreham-class sloop of the British Royal Navy. Weston was built at Devonport Dockyard in 1931–1933.
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.
United Kingdom 
