The reciprocating group displaced 1,010–1,030 long tons (1,030–1,050 t) at standard load and 1,305–1,325 long tons (1,326–1,346 t) at deep load The ships measured 225 feet (68.6 m) long overall with a beam of 35 feet 6 inches (10.8 m). They had a draught of 12 feet 3 inches (3.7 m). The ships' complement consisted of 85 officers and ratings.[1]
The Algerine class was armed with a QF 4 in (102 mm) Mk Vanti-aircraft gun[2] and four twin-gun mounts for Oerlikon 20 mm cannon. The latter guns were in short supply when the first ships were being completed and they often got a proportion of single mounts. By 1944, single-barrel Bofors 40 mm mounts began replacing the twin 20 mm mounts on a one for one basis. All of the ships were fitted for four throwers and two rails for depth charges. Many Canadian ships omitted their sweeping gear in exchange for a 24-barrel Hedgehogspigot mortar and a stowage capacity for 90+ depth charges.[1]
After commissioning, Middlesex sailed up the St. Lawrence River to Halifax, Nova Scotia. From there, the ship was sent to Bermuda to work up before returning to Halifax. Upon her return, the minesweeper was assigned to the Western Escort Force as a convoy escort in the Battle of the Atlantic. The ship deployed as part of escort group W-3, joining the group on 30 August 1944. In November 1944, Middlesex was made Senior Officer's Ship of the group.[3] As Senior Officer Ship, the commander of the escort would be aboard her during convoy missions.[4] She remained with the group as Senior Officer Ship until it was disbanded in June 1945.[3]
Middlesex underwent a refit at Halifax before being placed in reserve there following the end of the war. In March 1946, the ship was reactivated as an emergency ship based out of Halifax. In April, Middlesex rescued 32 crew and passengers from the merchant vessel Alfios after the ship had run aground on Sable Island.[5] While responding to an emergency call from the fishing vessel Ohio in December, Middlesex ran aground on Half Island Point near Halifax.[3] The crew escaped unharmed and a naval tug was sent to assist the ship, while another ship was sent to assist Ohio.[6] However, the ship was unable to be pulled off the rocks[7] and declared a constructive total loss on 12 December 1946.[3] The ship was officially put up for sale in March 1947.[8]
Lenton, H. T. (1998). British & Empire Warships of the Second World War. Annapolis, Maryland: Naval Institute Press. ISBN1-55750-048-7.
Macpherson, Ken; Barrie, Ron (2002). The Ships of Canada's Naval Forces 1910–2002 (3 ed.). St. Catharines, Ontario: Vanwell Publishing. ISBN1-55125-072-1.
Canada
