thanks for the diagram Lnewqban,
yup, i got......essentially,the aileron then becomes part of the airfoil profile, producing lift as well as control surface.
the leading edge is straight, made from 9/16" square stock and rabeted onthe two adjacentfrontsidesfor the c-tube sheeting. makes a neat-easy tobuildup leading edge as the upper and lower tube sheets can be glued on the square stock before the assenbly is attachted to the ribs. almost, sort of "reversed building order"........normally, the leading and trailing edge is put in the jig and the ribs are glued on inbetween the the edges,then the c-sheeting.....well this way..., the ribs are all in place on the jig and the leading edge assembly( 9/16 square and upper and lower sheeting)is then glued, as a component,onto the fronts ofthe ribs, with the sheeting sticking straight out, equally, above and below the front of the ribs.with careful glue application to the fronts of theribs(keep the glue only on the areas that contact the 9/16 square stock, so you don't create a hard, straight spot on the area just behind the leading edge) and the glue is cured, the sheeting is then bent down onto the ribs and held down with tape and pins. it eliminates the problems of holding the very front edges of the sheeting down tight on the leading edge radii.