The Gadfly E.S.102 was a British two-seater general purpose light autogyro developed during the early 1960's. The Gadfly E.S.102 was powered by a Rolls-Royce/Continental IO-346-A four-cylinder horizontally-opposed air-cooled engine providing a top speed of 201 kmh and a range of 740 km. Research Gadfly E.S.102
 
The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert