The Wizard was developed from a racing aircraft powered by Rolls Royce Falcon. After an accident, the Racer was rebuilt a fighter called the Wizard. The engine was a Rolls Royce F.XI soon to be called the Kestrel. Air Ministry interest led to a request to modify the aircraft to improve visibility for the pilot. The engine was also upgraded to a supercharged F.IX. When the modified aircraft, the Wizard II, had poorer performance than the Mk.I , it was decided to drop it because there was not enough gain over biplanes. Photo from: Imperial War Museums