Wallis WA-120

Design and development
Following on from his family of single-seat autogyros former Royal Air Force aviator Wing Commander Ken Wallis developed a high-performance long-range variant with an enclosed cockpit. The WA-120, registered G-AYVO, was first flown on 13 June 1971. The autogyro is powered by a 130 hp Rolls-Royce Continental O-240-A piston engine driving a four-bladed pusher propeller.