ORIGINAL: Farmer Ted
Da Rock,
THANK YOU for helping me out with this! I flipped the upper aileron control horn around and put it on top of the aileron instead of the bottom and, presto! perfect synchronized travel from all 4 ailerons. I didn't even have to notch the TE. I did have to debond the CA holding the control horn in (it's an electric plane...no screws in the horns) and that's the part I was concerned about but things are perfect now.
Since this is such an obvious problem and an easy fix, I wonder why these model engineers don't address this when designing these ARFs.
I guess it's all about the $$.
I have a CG Pitts P-12 Monster waiting to be built and I will once again be modifying the aileron linkage on that too.
Thanks again.
Unfortunately, it's not about money. You just used the hardware that came with the airplane. So what you did correctly cost nothing additional. And was done with what came in the ARF.
What they prove with almost every ARF is that the people assembling them don't understand the things they're putting together. The flaws in design prove pretty much the same thing only they prove the correctness of the term "engineer".
Today, the experience we need to have is what to look for in our next ARF that need reinforcing or re-glueing. And we need to learn enough about flying models that we catch design screwups. For an example of design things, there are a number of tricycle gear ARFs that have the main gear coming straight down from the CG. Dumb. It's dumb because a couple could work perfectly if the struts had been bent back instead of straight down.
ARFs are wonderful things. Convenience and beauty you can't beat. But we have to keep in mind that they're being built by people who won't come close to every owning radio equipment or flying models. And they're being passed through a design process that allows things like firewalls made out of liteply.