Originally Posted by
billythefrog
Thanks Duncan. There are no stops in the design. I have the aileron and flap clamped both sides and the stick is clamped vertical with a sprit level (the a/c is also lat/long levelled). Agree with rigging a neutral setup but I'm not 100% what 'neutral' looks like at the bellcrank - I assume it would be the position where the wing pushrods (to the bellcrank from the yoke) exert the maximum movement of the bellcrank in both directions - in other words, the bellcrank arm is perpendicular to the wing pushrod where they connect at a rose joint? I need to call Tecnam again for advice but I can't say that their support has been exemplary
Further to my post above I have seen something similar when a control rod was attached in the wrong position on a bellcrank, misspositioning of a bellcrank might also give the same effect i.e too much angular movement.
Or rather too much output for the same angular rotation.