Air Chief Marshal Sir Allan Grant "Angus" Houston, (born 9 June 1947) is a retired senior officer of the Royal Australian Air Force. He served as Chief of Air Force from 20 June 2001 and then as the Chief of the Defence Force from 4 July 2005. He retired from the military on 3 July 2011. Since then Houston has been appointed to a number of positions, including chairman of Airservices Australia. In March 2014 he was appointed to head the Joint Agency Coordination Centre during the search for Malaysia Airlines Flight 370, and in the Australia Day Honours of 2015, he was knighted for this service. Early life Houston was born on 9 June 1947 in Ayrshire, Scotland and educated at Strathallan School in Forgandenny, Perthshire. He emigrated to Australia in 1968 to work as a jackaroo on a sheep and wheat farm near the town of Mukinbudin in the North Eastern Wheatbelt region of Western Australia. Service career Early career Houston joined the RAAF as a cadet pilot in 1970 and was soon given the nickname "Angus". On 20 March 1971, he was granted an eight-year short-service commission with the rank of pilot officer, and was promoted to flying officer on 20 March 1973. He spent the early part of his career flying UH-1 Iroquois helicopters in various parts of Australia, Papua New Guinea and Indonesia. On 10 March 1975, he received a permanent commission, with a promotion to flight lieutenant on 20 September. After graduation from Flying Instructors Course in 1975, Houston completed several instructional tours on Macchi MB-326H, British Aircraft Corporation Strikemaster and Iroquois aircraft. A posting to the Republic of Singapore Air Force (RSAF) from 1976 to 1978 was followed by two years at No. 9 Squadron at RAAF Base Amberley. In late 1979, Houston was posted to Hill Air Force Base, Utah U.S.A. for exchange flying duties with a United States Air Force helicopter unit. In 1980 he was awarded the Air Force Cross for an open sea rescue in gale-force winds off the coast of New South Wales in 1979. He was promoted to squadron leader on 1 January 1982. After a further posting to No. 9 Squadron as the Executive Officer, and staff training at RAAF Staff College, Houston was posted to the Department of Air (Development Division) where he was involved in the Black Hawk helicopter Project. In 1987, Houston assumed