First use a Graupner K42, set tne strut at 0°, control the height of the strut, turn the prop with your hand to ensure all parts are free.
When you' ve got the best result with K42 prop and when COG is fixed you can mount a X442 or a X642 or a M445
Forget the Octura x440/3 with your 4S setup
When you' ve got the best result with K42 prop and when COG is fixed you can mount a X442 or a X642 or a M445
Forget the Octura x440/3 with your 4S setup
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