No. 78 Wing is a Royal Australian Air Force (RAAF) operational training wing, headquartered at RAAF Base Williamtown, New South Wales. It comprises Nos. 76 and 79 Squadrons, operating the BAE Hawk 127 lead-in fighter, and No. 278 Squadron, a technical training unit. No. 79 Squadron, located at RAAF Base Pearce, Western Australia, is responsible for converting new pilots to fast jets, while No. 76 Squadron at Williamtown conducts introductory fighter courses; both units also fly support missions for the Royal Australian Navy and the Australian Army.