 No. 1 Operational Conversion Unit ( No. 1 OCU ) was an operational training unit of the Royal Australian Air Force ( RAAF ) . Formed in January 1959 at RAAF Base Amberley , Queensland , its role was to convert pilots and navigators to the English Electric Canberra bombers flown by Nos. 1 , 2 and 6 Squadrons . The unit 's complement of Canberras included T.4 and Mk.21 dual @-@ control trainers , and Mk.20 bombers . Originally a component of No. 82 Wing , No. 1 OCU became an independent unit at Amberley in April 1968 , its focus being the provision of operationally ready pilots for service with No. 2 Squadron in the Vietnam War . No. 1 OCU was disbanded in June 1971 , following the withdrawal of No. 2 Squadron from South @-@ East Asia . By then the RAAF 's only Canberra unit , No. 2 Squadron ran its own conversion courses before disbanding in 1982 . 
