first things first been flying awhile great planes cap 580 ,tiger 60 hanger 9 at6 and i had two 4* before this one both flew great. the problem with this arf it wants to roll to the left, or wing over to the left.tried trimming it out yesterday, no wind great day for flying had to trimit to the max on my radio and still no good landed and adjusted theaileron by hand.have two arf wings changed wings same problem?its got to be somthing iam missingboth wing cant be heavy on the same side?? also checked rudder its ok. bench it last night took all my measurement all with 1/16 of a inch of each other .the only thing iam not sure of is engine thrust if this could be a cause? this is a fun plane but its a headack. thanks for the help guys

Sounds like you don't have enough right thrust in the engine. Try putting a couple of washers behind the engine mount (at the firewall) on the left side, and see if the problem does not go away.

did you use the same servos? if so it might be a servo gear problem

My 4* 40 didn't straighten up and fly really right until I installed some right thrust AND some down thrust at the same time. It grooves perfectly now. Nicest plane I have ever flown.

Also, is the wing sitting perfectly parallel to the stab on the fuselage? Sometimes ailerons will have a bit of a warp in them, and it is a matter of continuing to adjust the linkages until she flies straight.

Ernie