here is a tip so you dont have to remove the aileron at all if you can locate the rod in the aileron you remove the balsa on the bottom side with a hobbie knife and fill the void with 6 min. epoxy to avoid the hassle of re hinging and you will be flying in 6 min. not sure what the knock on ca hinges is the work fine as long as you dont over glue them so they become brittle. used this on my NEXTAR after the rods loosened up worked perfect still tight if you want to cover the clear epoxy iorn a small patch I didnt