The Macfie monoplane was a British shoulder wing, tractor monoplane. The aircraft was powered by a 35 hp (26 kW) J.A.P. V8 engine fixed at the front of an open-frame 'fuselage', at the rear end of which a tailplane and vertical rudder were mounted. It was designed, built, and flown by Robert Francis Macfie, an American-born engineer and early aviator who in 1909 moved to England to study engineering. Construction of the monoplane commenced on 2nd August 1909, and was completed on 16th September. The first flights took place at Fambridge, sometime during the following five weeks.