I have been sitting in the garage for almost 2 hours and find myself chasing my tail so to speak.

I get the ailerons set at neutral with 0 on trim clicks and 0 on sub trim, throws equal with reguards to the % output on the radio meter, only to find one side goes down further then the other, same side goes up further then the other also. Flip the flaperon switch to find one side goes down more then the other. Flap travel is set to 0 per the book, with throw % set to 100.

I know its me who is screwing up cause I dont fully understand setting things to use this function, and dont know anyone local who uses this function to come show me what I am doing wrong, so I am stopping at the LHS for a "y" and setting things up without it.
Unless someone on RCU can give perfect writting directions as to how to start over and set it up correctly.

Did you check if:

-servo horns are identical and pushrod is in corresponding holes?
-ditto for control surface horns?
-servo travel is identical for both servos?

it sounds like it's consistently one servo/linkage which has more travel than the other

If the radio is set to default as you indicate, it is most likely one of the above.

What radio are you using? This will help, so someone can tell you what to do.

JR 631

Disconnected push rods and the servo arms seem to travel the same, but I will double check it. Going to reset the radio to factory defaults and start over one more time, then if I cant get it done, I will return to a "normal setup" with a "y".

last night I reset the radio, got the rudder and elevator set up.
started on the ailerons by centering and setting trim...so far things look good.........went to flaps mode and brought the flap travel to zero per the manual, and now trim is messed up cause it brought both ailerons down........at this point I would think I should recenter the servo arms, but I just dont know....

If everything is centered in transmitter then you could center the servos manually on the plane. I don't know about the JR, but most transmitters allow you to center both servos seperately (ie. channels 1 and 6 for Hitec)

I am wondering if I should center them manually (which I think would limit throw in one direction, or use the radio "sub-trim" to bring them back to center. Guess I will find out when I get home from work today.

ecajberry - I just went through exactly the same thing setting up my plane. I have two JR computer radios, an X-347 and a 642. I had no trouble setting this up on my 347, but couldn't make it happen on the 642. The 347 has a 3 position flap switch and a rotary knob, whereas the 642 has a 2 position switch only. They program differently too. My 347's internal memory battery died so I am going to have to send it in which is why I've reverted to the simpler 642. While it's by no means a bad radio, it's not the "Cadillac" the X-347 is - it's got more switches, knobs and features than a human being could ever use! I guess you gets what you pay for.

Sometimes you get what you can and try to work with it.

Im sure a 10X would have come home with me if it was possible.

Same situ for me - I bought both my radios used.

The "Y" is installed and Im tired of messing with it.....
its all set to fly again the old fashion way.

Here's how I do it on all the JRs I have owned.

I'm going to assume you have a Flaperon wing type set. If not go to the System Set-up Menu and set it.

1, clear all your sub trims and end points and center trims.

2, Put the control horns on the servos so they are centered as closely as possible.

3, Hook up ailerons and center as closely as possible manually using the clevices or pushrod connectors.

4, Use sub trim for flap and aileron to center each side.

5, Go to the Elevator-Flap mix and set both directions to 100%. You can change this later, but set 100% now.

6, Put Elevator Mix switch on so the flaperons work. Hold full up elevator, this should give you full down flaperons. Position the plane upside down so you can see how far both flaps went down. Use Travel Adjust to reduce the greater side so both are exactly the same. This will need either the flap channel or the aileron channel to be adjusted. Once this extreme position is adjusted, the intermediate positions between center and full will be fine.

7, Hold full down elevator for up flaperons and position the plane right side up so you can see both flaps and reduce the greater so both are the same.

Now when you have flaperons on and do a full up loop or land with flaperons, your plane won't roll. You can now reduce the flaperon travel or not even use flaperons.

I like to set every plane up this way using flaperons whether it is a fun fly plane, a sport plane or a scale plane because I can adjust each side individually.

What's probably happened to you if you have the pushrods in corresponding holes is you have a minot thickness difference in horn length due to tightening one side more, reducing height or maybe one horn isn't exactly over the hinge line. There are always some slight differences in servos, too. This is the reason the big guys need things like the Match Box.

Ed is right. Follow that and it will work just fine. It sounds a little too much right now but once you do it you will see its pretty easy. Plus thats the best way to get two servo wings too work. This way if there is a prob then you have at least one ail working witch will get you back on the ground.

P.S. You really dont need flaperons on the omp 540. It flys great with no mix. Now if all planes fly like that i would be happy!

Went through the same thing last night. All the JR 6xx radios appear to have this problem. Whats happening is the flap channel is getting mixed with the ailerons and flaps are inherrently all the way down or all the way up so it screws with the center position of the servo. Reset your model. Set to flapperon mode. Then set up a mix of channel 6 to channel 6 (flaps to flaps) and set the amount to -100%. This will allow the true servo centers to be proper. Then go into the travel adjustments for flaps and set appropriately for the amount of flaps (drooping ailerons) you want. Search rcuniverse for XP652 and flaperon and you should find my original post that I answered myself when I found a relating article. It has a link to the article that shows this method and another.

P.S.

Maidened the World Models Super Sports 40 this morning that I set this up with. They worked great!