RE: Rolling issues with Comp ARF Impact
My wing and tail started off pretty much on the moulded marks on the fuz. Like Peter I hold no store with these or accurate bench alignment - I fly it and adjust to suit. I have never understood JAS comments about adjusting the angle at which the fuz flies by adjusting the tail. The wing incidence relative to the fuz centreline is the only thing that can affect this. The wing flies at what ever incidence it needs to generate the requed lift and the fuz then goes with it. All the tail is doing is trimming the wing to the required incidence. Adjusting the tail incidence and trimming the elevator produce broadly the same effect alhough one may vary with airspeed more than the other. My procedure is to fly the model and trim it for straight and level. Then I observe the fuz angle and if I am happy I then do the downthrust checks. If this requires adjustment I alter it by changing the wing incidence which has the same effect. I then recheck for fuz angle and if this is now wrong I physically alter the downthrust. Once I am happy with fuz angle and downthrust then and only then do I adjust the tail to remove any elevator trim the model may be carrying. Over lots of models from .60 size 2 strokes up to my electric 2m I have found this procedure works.
Malcolm