I thought that was a good prop too, and I do plan on taping the hinge line this time. Just waiting on Great Planes to send me the new ailerons. The ones I have have only the most rudimentary bracing and twist rather easily. My builder and I plan to cut the monocote and add some stiffening braces and a bigger "bite plate" for the control horn to hang on to. The Hi Tech HS-475HB servos are brand new, tight as a drum and my builder friend put heavy duty control arms on them from his turbine jet kit. The 4-40 rods have Sullivan clevises (gold) with the silver clasps, and the rods are covered with (if memory serves) .150 ID carbon fiber rods held in place with hex nuts. The combo has enough torque to just about close the door on my little Nissan Sentra, so I figure they are plenty powerful enough for this application.
Now as for rpm, I gotta be honest, I haven't a clue. I don't possess a tach, and it seems that nobody I fly with does either. Guess that something to put on Santa's wish list then. LOL
ORIGINAL: gunfighterII
Adrian's,
Sounds to me like you have poorly built ailerons or a bad servo with excessive gear play. check your aileron for stiffness or as a last resort, remove covering and sheet the aileron.
Seal the gaps, even though your hinge line is tight, those are big surfaces to move.
A 12-4 should be perfect for that engine, what kind of rpm's are you getting?