Ravn Aerospace, formerly known as AirUSA, is an American defense contractor based at Houston Spaceport in Houston, Texas. It offers adversary air, close air support, Joint Terminal Attack Controller, and Intelligence, Surveillance, and Reconnaissance training to the United States Department of Defense.

The Royal Australian Air Force (RAAF) operated McDonnell Douglas F/A-18 Hornet fighter aircraft between 1984 and 2021. The Australian Government purchased 75 A and B variants of the F/A-18 in 1981 to replace the RAAF's Dassault Mirage III fighters. The Hornets entered service with the RAAF between 1984 and 1990. Four Hornets were destroyed in flying accidents during the late 1980s and early 1990s.