The RAAF also operates the Learmonth Air Weapons Range which covers about 18,954 ha (46,840 acres) and is located 30 km (19 mi) south-west of the airbase.

[2] During World War II a little-known landing field was constructed on the western shore of Exmouth Gulf.

[3] Starting in June 1944, Qantas used Learmonth as an intermediate stop for two converted Consolidated Liberator bombers that flew a segment of the vital England–Australia air route, supplementing modified Consolidated PBY Catalinas flying The Double Sunrise route to Ceylon.

The Liberators flew a shorter 4,952-kilometre (3,077 mi) over-water route from Learmonth to an airfield northeast of Colombo, and could make the journey in 17 hours with 2,500 kilograms (5,500 lb) of payload, whereas the Catalinas usually required at least 27 hours and had to carry so much auxiliary fuel that their payload was limited to only 450 kilograms (1,000 lb).

Though F-111Cs could have made a round-trip to Indonesia's capital, Jakarta, from RAAF Base Darwin, the route they took would have been very much limited by range.