ORIGINAL: marcus1899
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Now when Don says he has trim issue's again I'm totally confused on how that could happen. I can put an airplane away for two years, and as long as I haven't changed the settings in the transmitter I can go out and fly it and nothing changes. Trim memory is in the transmitter, it has nothing to do with the switch, battery or reciever, if your having trim issue's in between flights, or when you unplug and plug things back in then your servo's suck, they are not centering correctly and with these aircraft and the abuse we put them through why you would want to put cheap servo's in there to take those chances is beyond me, or if your servo's are OK, then you have a trim memory problem in your transmitter and you should have it looked at.
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Marcus,
See my answer to Dave. It is primarily with the Viper where I have had the trim change issue. And it's not a real big change, usually just one click one way in the pitch axis. But I have had to use one click of aileron at times.
It could be the servos. I have used the Hitec HS-85MG on V-tail and HS-225 on aileron in the Vipers. Since I switched to using the JR Sport MN48 servos I do feel the centering is better. I know they are still not premium servos, but they seem to work well.
I am going to put at least one 428 plane together for the fall race at
www.OldJulianAirport.com and I will get premium servos for it.
Thanks for your comments.