The aileron trim setting for my plane requires additional right trim to achieve straight and level flight. The additional trim is not extreme, maybe 24 increments on a Futaba 6EXA transmitter. There is one servo for the ailerons on this plane. Prior to the initial flight and trim adjustment the ailerons where level when the servo is in the neutral position, I have not looked at the aileron setup following the trim adjustment. Can I adjust the push rod for the right aileron to zero out the trim setting? Do I need to adjust both aileron push rods?
Thanks,

You should probably adjust both rods equally but in opposite directions. One shorter and the other longer. Of course you will want to check the ailerons BEFORE adjusting to see what really is needed.

Check your rudder before adjusting the ailerons. If the rudder is out of trim, it will try to roll the plane. It doesn't take much either. I discovered this when I had to fight my trainer when the instructor turned it over to me. It wanted to roll way off to one side. We landed and checked trim from trainer to main transmitter and there was not difference, back in the air and the same thing. I happened to notice the rudder trim on the trainer box was pushed full in one direction. I popped it back to center and problem sloved. Once the plane was back on the ground, I checked to see just how much rudder was being applied and found the full trim on the trainer box would only give about 1/8" deflection on the rudder. That was enough to roll the plane over though.

Don

this is advice from experience with scale ships that have wash out built into the wing tips.It is not a good idea to have the airlerons adjusted for trim so that they droop below neutral,as this will remove any built in wash out in that panel and cause a nasty snap at low speeds.It is better to have one airleron raised above neutral for trim for this reason.I learned this on the test flight of my jhh f9f-8 cougar back in 84" It need just a tad of airleron trim that I made with the trim on the tx.flew fine the rest of the flight ,however when I came into land about 2 feet above the runway I started to flare the plane it snapped so fast an unexpectedly there was nothing I could do and it landed on the runway on it's back.I was lucky in that it did not hook a wingtip and cartwheel,only damage was some scraped paint that need to be touched up before the 85 nats.