Place the helicopter in horizontal position and you should be able to see the effect of trimming. Note that the helicopter usually is slightly tilted to the side in hovering flight due to the drag of the tail rotor. Therefore as a starting point you may trim about 1-2 degrees to the right when using a helicopter with clockwise turning main rotor to make the heli tilt against the rotor torque, but by default it should not be necessary to use any trimming at all. Note that AttitudeControl can not recognize the absolute position of the helicopter. Depending on wind and environmental conditions it may happen that the helicopter drifts slightly into a certain direction during hovering flight. Also long-lasting vibration or fluctuations in temperature can cause the helicopter not always comply exactly the same attitude. Also make sure the MICROBEAST PLUS unit is perfectly aligned to the rotation axis of the helicopter otherwise you the axis will be cross connected together and the calculation of the artificial horizon will not match the real movement of the heli. Therefore only trim in moderate steps and only when the helicopter reproducible drifts to the same direction otherwise trimming can make the drift even worse!<br /> | Place the helicopter in horizontal position and you should be able to see the effect of trimming. Note that the helicopter usually is slightly tilted to the side in hovering flight due to the drag of the tail rotor. Therefore as a starting point you may trim about 1-2 degrees to the right when using a helicopter with clockwise turning main rotor to make the heli tilt against the rotor torque, but by default it should not be necessary to use any trimming at all. Note that AttitudeControl can not recognize the absolute position of the helicopter. Depending on wind and environmental conditions it may happen that the helicopter drifts slightly into a certain direction during hovering flight. Also long-lasting vibration or fluctuations in temperature can cause the helicopter not always comply exactly the same attitude. Also make sure the MICROBEAST PLUS unit is perfectly aligned to the rotation axis of the helicopter otherwise you the axis will be cross connected together and the calculation of the artificial horizon will not match the real movement of the heli. Therefore only trim in moderate steps and only when the helicopter reproducible drifts to the same direction otherwise trimming can make the drift even worse!<br /> |