The Wallaby was designed to compete in an Australian government £10,000 prize for an England to Australia flight.

It was a single-engined biplane powered by a Rolls-Royce Eagle VIII engine.

It had an open cockpit with two seats that could be retracted inside the enclosed cabin.

The Wallaby registered G-EAKS departed Hounslow on 21 October 1919 for Australia.

On 17 April 1920 it crashed on the island of Bali in the Dutch East Indies.