I know the disadvantages of EPP wings such as the difficulty of maintaining a true airfoil, lack of stiffness especially in torsion, "prune skin" and surface imperfections caused by the underlying tape, different behavior in different air temperatures, etc. I have even posted regarding the unsuitability of EPP for core material.
However due to my ham-like hands catching my HLG's is very rough on the wings. EPP seems the way to go for durability. I am encouraged by my Goblin which has held up well and suits my needs pretty well. My Ghost (basically a Dizzy Bird) has climbed out to thermals and literally soared with the hawks and buzzards on many occasions. This suits my flying style very well but I am wondering if a different airfoil might be of benefit. The Ghost and the Goblin have fairly highly under cambered foils and are not very good at penetration. So what are your suggestions for a different airfoil bearing in mind that I can not get or maintain a truly accurate foil shape? I can read polar graphs but have no idea how sensitive different airfoils are to irregularities. Also, when I get to the point of moving up to non EPP wings, what construction should I consider for durability? Thanks Wid RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
