Roy Chadwick (Designer), Bert Hinkler and R. J. Parrott (General Manager of A. V. Roe & Company Ltd) with the prototype Avian prior to Hinkler's first solo flight between England and Australia. Leaving London (Croydon) on 7 February, he arrived at his home town of Bundaberg, Queensland, on 27 February. The flight took 128 flying hours and in the process Hinkler smashed the old record time between the two countries from 28 to just over 15 days.

85 hp ADC Cirrus II engine, built 1927, certificated 18 Jan 1927 for the Hampshire Aeroplane Club, Hamble, Hants. Crashed 30 Aug 1928 after striking a tall flagpole on final approach to Hamble, pilot was Miss Bessie Grace, granddaughter of the cricketer W G Grace. Repaired. Finally w/o 1 June 1934 when the pilot attempted a landing in too short a field at Stevenage and collided with the boundary hedge.