HMAS Sydney was one of a class of relatively small and uncomplicated light fleet carriers which in Korea operated 24 Hawker Sea Fury and 14 Fairey Firefly fighter bombers. This ship was launched on 3 September 1944 as HMS Terrible and was unfinished at the end of WWII in Europe in May 1945. The Australian Government took over the ship on 16 December 1948 and renamed her Sydney. From September 1951 to January 1952 Sydney served with the United Nations Command in Korean waters where her aircraft carried out 2366 sorties
The Americans lent Sydney a Sikorski helicopter for pilot rescue duties. After initial reluctance, based on concerns about committing Australia's main fleet unit in a deteriorating world situation, the Australian Government agreed to deploy the carrier for a short period to allow the Royal Navy to refit its carrier HMS Glory. Sydney was well prepared for the deployment, being given priority for men and stores but, with other commitments to Korea, this was a strain on the RAN's limited resources.
Sydney commenced operations on 5 October 1951 under command of Captain D. H. Harries. On 11 October she flew a record 89 sorties, an effort bringing praise from American and British authorities, USS New Jersey stating that Sydney's gunnery spotting was 'the best she has yet had'. On 25 and 26 October three aircraft were lost, the last involving a dangerous pickup of shot-down aircrew by the ship's helicopter in a real life play out of the "Bridges at toko Rii. Enemy infantry attempting to capture the aircrew were suppressed by fire from Sea Furies from Sydney that flew constant support, until extraction by the helo. Her close escort included HMA DD Anzac, a Daring Class Destroyer
Normal daily operations aimed at 54 sorties although this was often difficult to achieve on an axial deck carrier requiring a constant movement of aircraft around the deck, often in foul weather, especially as a freezing winter set in. In October, Typhoon Ruth caused damage to the carrier and the loss of 5 aircraft.
Sydney's piston engine aircraft were invaluable for ground attack duties. Normally the Fireflies carried bombs and the Sea Furies rockets. Both types mounted four 20mm cannon. Targets attacked included troops, gun positions and transport infrastructure. Sydney's aircraft were credited with causing 3000 communist casualties as well as the destruction of 66 bridges, seven tunnels, 38 railway sections, seven sidings, five water towers, three locomotives, 59 wagons, 2060 houses, 495 junks and sampans and 15 guns. They also carried out target spotting and reconnaissance, for which the two-seat Firefly was particularly well suited, as well as combat air and antisubmarine patrols around the carrier and her escorts.
Enemy anti-aircraft fire was the main danger. Sydney had 99 aircraft hit and nine were shot down. Casualties were three aircrew killed and six wounded.