I am use to hinging ailerons in the middle of the trailing edge of thge wing, this is new for me to hings the ailerons close to to the top of the triling edge. It makes sense that way and it would work. I am still opertaing without an instruction book, so I am kind of doing everything from past knowledge of other plane. Thanks for the info. By the way what kindof hinge material have you seen used on the Smaragd?

Thanks