Royal Australian Air Force Base Edinburgh is located in Edinburgh, 25 km north of the centre of Adelaide, South Australia. It is primarily home to No 92 Wing and their Lockheed AP-3C Orion maritime patrol aircraft that conduct surveillance operations throughout Australia's airspace. However, after an extensive building program over the course of 2010-2011, it has also become the home of 7th Battalion, Royal Australian Regiment and some smaller units.