Trimming.... Once, Twice, Three Times????

[vapovick]

Ok, on a real aircraft as you adjust speed and altitude, you have to trim each time, is this true for r/c aircraft? Or is it that once you have trimmed (in flight) no other adjustments are needed.

[vapovick]

Anyone have any suggestions??

[theelman]

My experience has been that once it is trimmed out, you generally don't have to mess with it anymore, maybe a clik every now and then. The first time up I get the plane flying level with the trims at about 3/4 throttle. After that it usually doesn't need to be tweeked. If a lot of correction is needed then I'll make the adjustments to the push rods, zero out the trims and re-trim in flight. But once it's all flying good, I don't mess with it much. I fly mostly warbirds so as long as it's close I don't worry too much about it. I'm on the elevator and ailerons a lot to not notice if it's out of trim by a clik or two.