RE: Chinese Chipmunk
Mine is the 63" span version and if your's is like mine, there was excessive slop in the torque rod channel. I could move each aileron about 3/16" without affecting the servo arm. Knowing this would give flutter, I cut off the torque rod threaded ends and installed 2 aileron servos. Looks like your wheels are far enough ahead of the LE. Mine were further back and until I bent them forward, landings and takeoffs usually had nose-overs. With an Enya 61, it has more than enough power. You should really enjoy it and it will last longer if you reflex both ailerons UP about 3/16" to lower tip stall. I don't understand why there was over 10 or 15 years for the arfs to come out as opposed to kits only.