Thanks to all that have posted ideas to help with my problem. Today I changed some of the servos, the receiver, crystal and used a different receiver and battery and transmitter. Same problem maybe worse. Put original gear back in and rerouted antenna out the top of the plane rather than the bottom and the problem seems to be better. Two successful flights before dark even though the wind was not in our favor. I have many other planes with the antenna routed out the bottom with no problems but if it fixed the problem i am happy.

Thanks again.