The Jillaroo was one of a series of ultra-light aircraft designed by the late Colin Winton, others including the Brumby, Jackaroo, Sportsman and Grasshopper and they had a variety of engines including examples from the Rotax series, Hirth, Zenoah and Fuji Robin.

The Grasshopper was designed and built by Colin Winton of Winton Aircraft of Manly Vale, NSW in the 1970s and he and his Company produced 30 examples.

The Jackaroo was one of many designs produced by the late Colin Winton and produced by Winton Aircraft in Queensland and is a single-seat high-wing open-cockpit aircraft, being first made available to pilots in about 1980.