
A tractor monoplane built by C. G. Spencer and Sons and displayed at the 1910 Aero Show at Olympia. It was designed by Herbert Spencer and W. Stirling, powered by a four-cylinder 40 hp British Aeroplane Syndicate R.H. engine, which drove by chains two propellers of 6 ft. 6 ins. diameter mounted on the leading-edges of the wings. A reverse gear was incorporated in one propeller bracket for opposite rotation. The fuselage was of the “A”-frame type. The machine was tested at Brooklands, but it was not successful and it was soon abandoned.