HMAS Cairns (J183)
[1] In 1938, the Australian Commonwealth Naval Board (ACNB) identified the need for a general purpose 'local defence vessel' capable of both anti-submarine and mine-warfare duties, while easy to construct and operate.[6] The need for locally built 'all-rounder' vessels at the start of World War II saw the "Australian Minesweepers" (designated as such to hide their anti-submarine capability, but popularly referred to as "corvettes") approved in September 1939, with 60 constructed during the course of the war: 36 ordered by the RAN, 20 (including Cairns) ordered by the British Admiralty but manned and commissioned as RAN vessels, and 4 for the Royal Indian Navy.[1] From entering service until 16 October 1942, Cairns was based in Fremantle and operated as a convoy escort, anti-submarine patroller, and minesweeper.[1] On 16 October, the corvette was reassigned to the British Eastern Fleet and ordered to Kilindini, Kenya, arriving on 14 November.[1] Following a refit in Adelaide from May to July 1944, Cairns was redeployed to Colombo, which was her base of operations until January 1945, when the corvette was sent back to Australia.