Thread: Trim Tabs
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Old 06-26-2016, 07:37 PM
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Join Date: Mar 2013
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Trim tabs CAN work on models to reduce servo load in level flight.

You'd have to put a logging current meter on the servo and experiment to find the ideal trim tab position and it might apply to only one airspeed, since trim can change with speed.

There have been occasional RC model experiments with having the servos operate boost tabs and the control surface free to flop around. Most of those worked.

Every control system that works full scale can be made to work on the models.

One guy built a model with hydraulically operated controls. The servos moved the plungers of syringes. That one had issues due to leaking the water (his hydraulic fluid) out and the controls not holding any trim setting.
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