Exactly what motor are you using? The “watt output” means little. Regardless, that prop is-probably not the best for the motor unless it is a pretty large one. Too, exactly what ESC and cells are you running?
The reason for poor left turning is usually due to prop torque. As above, larger rudders will help. So will a smaller prop, but we need the above info to make an intelligent recommendation.
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Last edited by Got RPM; 09-23-2017 at 03:16 PM.