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Old 05-18-2014 | 05:01 PM
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celso.ferraz
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From: Sao Jose, BRAZIL
Default Motor, propeller gyroscopic effects avoid rotating at takeoff.

I constructed this pusher RC, and i'm having problems to get into the air.
Fisrt, the main landing gear was too far from CG and elevator had not enough power to rotate.
Moved the landing gear fwd to 40% of MAC. CG is at 25% of MAC.
Now, I realized that, the more power i set on accelerator, the more hard it become to rotate.
That makes me wander if there are gyroscopic affects from motor and/or propeller.
The plane weights 0,8kg, motor is 1100Kv and propeller is 8 in diameter.
Does anyone faced something like this?
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