So after hundreds of batteries and hours and hours of flying and fun. KFM wing 5 has bit the dust. It was reinforced with bidirectional packing tape on the leading edge, decorative packing tape then fully laminted with 3mil laminate. It was very crashworthy. Finally a high speed nosedive impact into the hard ground bent the frame enough that I almost couldn’t trim it to fly straight. So every removable part was removed and installed on the new frame and KFM wing 6 was born!