The Royal Australian Air Force'sAircraft Research and Development Unit (ARDU) plans, conducts and analyses the results of ground and flight testing of existing and new Air Force aircraft. ARDU consists of three test and evaluation flights (TEFs) located at RAAF Bases Edinburgh, Amberley and Williamtown, staffed by qualified test pilots, flight test engineers (engineer graduates of test pilot school) and flight test system specialists (air combat officer graduates of test pilot school). ARDU also conducted flight testing for the Australian Army until 2016, with Army personnel working within the unit.
ARDU often collaborates with sister AWC/TED unit Air Warfare Engineering Squadron (AWESQN). It also maintains close professional association with the other ADF flight test organisations, the Army Aviation Test and Evaluation Section (AATES) of the Army Aviation Training Centre (AAvnTC) located at Oakey, and the Navy's Aircraft Maintenance and Flight Trials Unit (AMAFTU) located at Nowra.
Originally the formation of the Special Duties and Performance Flight (SDPF) was established in December 1941 at Laverton, Victoria. The unit was reformed as No 1 Air Performance Unit (1 APU) in December 1943, the Unit was responsible for carrying out flight trials of new aircraft as well as aircraft modifications. During World War 2, flying trials included Spitfire, Beaufighter and Boomerang performance tests, as well as evaluations on various aircraft modifications including gun, radar and bombsight installations. In addition, the Unit carried out performance tests on captured Japanese 'Oscar' and 'Tony' fighters. Following the War the Unit was involved in tests on the CA-15 prototype, a Meteor Mk3, Lincoln bomber and De-Havilland Sea Hornet.
The unit was renamed Aircraft Research and Development Unit in September 1947, with detachments operating in Victoria, South Australia and New South Wales. In October 1948 ARDU moved back to Laverton with Detachment A at Mallalla, South Australia and Detachment B at Richmond, New South Wales and Detachment C at Edinburgh, South Australia.
By February 1977, all ARDU detachments had relocated to Edinburgh, South Australia, from where it continues its vital role of testing and evaluating both aircraft and weaponry in the RAAF inventory.
In 2003, ARDU was re-formed into the Aerospace Operational Support Group (AOSG) (which later became Air Warfare Centre (AWC)), which incorporated several additional operational support roles including those relating to flight test.
On 14 Jan 2013, ARDU established an outpost at Amberley, followed by Williamtown and Richmond. Richmond was ultimately absorbed by Amberley.
ARDU Pilatus PC-21, of which the unit received 3 in 2019 to replace its PC-9/A predecessor
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