The McDonnell Douglas F/A-18 Hornet is a twin-engine, supersonic, all-weather, carrier-capable, multirole combat jet, designed as both a fighter and attack aircraft (hence the F/A designation). ..The Royal Australian Air Force purchased 57 F/A-18A fighters and 18 F/A-18B two-seat trainers to replace its Dassault Mirage IIIOs...F/A-18 deliveries to the RAAF began on 29 October 1984, and continued until May 1990, and today (11th December 2020) some 30 years later they were retired from Serivce in the Ausrailan Airforce.