You have not answered BUflyer's question and there are two possible answers: 1- a scale model of a roadable aircraft and 2- a novelty car like the flying lawnmower. If 2 is what you are after see RCM plan no. 1029, "Flying Porsche". Wingspan is 24", for .60-.90 engine and construction is of wood and foam. Originally published in the October 1988 issue. You can see a photo at www.rcmmagazine.com/