Airlines of New South Wales

Airlines of New South Wales (also known as Air New South Wales, Ansett NSW and Ansett Express) callsign "NEWSOUTH" was an Australian domestic regional airline that operated from 1959 until its merger into Ansett in 1993. It was formed by Reg Ansett's takeover of Butler Air Transport. Airlines of New South Wales operated air passenger services in New South Wales, and later in other Australian states. In 1964–65 the airline fought a High Court case, Airlines of New South Wales Pty Ltd v New South Wales (No 2), that was significant in adjudicating the spheres of constitutional power of the national and state governments in respect of air navigation.