Jeez, Chris.. you actually put Futaba in your signature?


Every time you make an angle change like that, using belcranks (now I know that this is the way it was designed by the manufacturer and cannot be helped), you will induce some sort of error. In this case, you will have four connections to deal with: one at the servo, two at the belcrank, and one at the control horn. The best way to illeviate this slop is to follow what was mentioned above by making sure all connections are snug.

Another error.. or slop.. is with the way the belcrank is mounted. If that screw setup at the center of the 90 degree belcrank is not tight, it will wobble, inducing more slop. This will be a tad more difficult to correct unless the hardware is new, fresh, and fits exactly right.

One method to correct this, to eliminate this slop, would be to remove this belcrank setup, run a servo extension and build a servo mount in the wing to directly control the aileron. The servo can be mounted on the side and a little ingenuity can certainly go a long way to make up the servo tray and make it invisible and work better than a belcrank setup could ever work.

DS.