Brian,

I have not noticed different differential values per roll direction..I suppose its possible but I would bet your control throws on each aileron is not the same.

When I work hard to get the travels exactly the same as accurate as I can....by the way I think I'm well within 1/10th of a degree using the method I have. I actually now stick pointers on both wings at the same time. We found last year that the surfaces can have slight differences at different points in the stick travel. This stuff gets solved with minor little tweaks to mechanical setup.

When travels are the same Then differential is identical left and right. Or at least this is my experience with lots of different models over the last few years.

One note as servo pots wear the differential values change...and they can change dramatically. I keep on top of mine and check the servos about every 30 flights and I regularly make some minor tweaks like 1-2% on the Travel volume to keep the servo traveling identically as the pots wear. At about 100 flights the pots reach my threshold for replacement. So if you have fresh servos in the model then start the trimming of this function. Then it will be set. AS you change out servos to fresh ones later on the differential value will be the same.

One thing I have found on the molded wings. The aileron will "rise" or "Fall" slightly as the servo moves off center before it pivots. I have yet to see a molded wing that doesn't do this. The skin hinge just doesn't pivot as clean as a hinge pin will. This will drive your differential settings wild. The reason is the differential value for a small roll rate is not the same as the differential for a higher roll rate. Also the differntial tends to become model speed dependant as well. It has to do with the way the rise or fall of the surface changes the wings shape before it pivots. Not that we are talking major changes or anything....It just is something I have noticed.

Never could get a Molded wing-Aileron combo model to roll as well as a Hinged surface. If you have one of these models take a look at the surface just as you start to deflect the aileron.

Also as the models age this attribute will become much more common. The hinged surface will get some flex in it as it moves more and more times. The result is more translation of the surface before it rotates.


Troy