The Warrigal I and II were Australian aircraft designed by Squadron Leader Lawrence James Wackett and built by the Experimental Section of the Royal Australian Air Force (RAAF) at Randwick, New South Wales, during the late 1920s.
They were both single-engine, two-seat biplanes of mixed wood and metal construction.
The Warrigal I was the first aircraft designed and built in Australia to an official RAAF specification.
Original 200 hp (150 kW) version designed as an advanced training aircraft with capacity for pilot and instructor.
Improved 450 hp (340 kW) version designed as an army co-operation aircraft with capacity for pilot and observer/rear gunner.