ORIGINAL: chris de jon
The model is a low wing similar to a Moth minor or PT19 but has a flying tail plane.
I have always understood a flying tailplane to be similar to the Miles M20 or as on many sailplanes, no elevator but a variable incidence horizontal stabiliser.
I have always avoided this because of the difficulty of having exact neutralising of the control surface due to servo innacuracy or poor mechanical connection.
Use the maximum leverage from the servo, ie outermost hole and longest servo travel, the neutral position will be most accurate if maximum servo travel is used.
old git - - - - - - aka John L.