I've always liked the smaller planes, the Ranger, Airbike, CriCri and so on. But to lift my weight, I need wing surface, as much as I can get from an existing wingspan. One of the first Zenair's was using a wing made of the more or less rigid D-Cell LE structure, while the aft was made of sailcloth. How to make a wrapping control system for Roll and Pitch , with ta D-Cell leading edge. The sail could have battens to stabilize the airfoil. Would a control system that acts on the camber of the sail be effective to control a 3-axis airplane?