HMAS Colac (J242/M05) was a Bathurst-class corvette constructed during World War II, representing a versatile all-rounder designed for local defense, anti-submarine warfare, and mine-sweeping duties. Laid down by Mort's Dock and Engineering Company at Balmain, New South Wales, on 18 April 1941, she was launched on 30 August 1941 and commissioned into the Royal Australian Navy on 6 January 1942. The vessel was originally intended to be named HMAS Hamilton but was renamed Colac, after the town in Victoria. The Bathurst-class ships, including Colac, were larger and more capable than initially envisaged, with a displacement of approximately 680 tons, a top speed of 15.5 knots, and a range of 2,850 nautical miles. Armed with a 4-inch gun and equipped with asdic for submarine detection, the corvette could be fitted with depth charges or minesweeping gear as needed. During her service in World War II, HMAS Colac primarily performed anti-submarine patrols and convoy escort duties along the Australian coast, New Guinea, and surrounding waters. Notably, she participated in the Allied efforts to recapture Buna-Gona in Papua New Guinea, undertaking troop transport missions under attack by Japanese aircraft. The vessel also engaged in convoy escort operations, notably defending a convoy off Cape Byron where she rescued survivors from the torpedoed MV Limerick. In 1945, she provided gunfire support in the Wewak area and harassed Japanese bases in the Solomon Islands. Colac sustained casualties from Japanese shore batteries in May 1945, resulting in damage and requiring repairs in Sydney. Awarded two battle honours—"Pacific 1942–45" and "New Guinea 1942–44"—her wartime service was distinguished. Post-war, she was recommissioned as a training ship in 1951 before returning to reserve in 1953. Converted into a tank cleaning vessel in 1962, she served until 1983. Her final act was sinking as a target during a weapons test by HMAS Ovens on 4 March 1987, after which she was sunk off the coast at approximately 34.82°S, 151.53°E.

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