How To Proceed - iKarus ECO 7 Manuel D'utilisation

How to proceed

The model has been trimmed to neutral by adjusting the transmitter trimmers.
Land the model and wait until the main rotor stops. Now push the tail stick all the way to the left. After about two
seconds, the gyro correction will be confi rmed. After fi ve more seconds, trim saving will then be confi rmed. This is
when the trimming settings are being transferred and saved. Initially, the affected servos will then move into a off
position in relation to the trimming difference. The moment the transmitter trimmings are back in the neutral position,
the servos positions, too, will be correct again. This process can be carried out many times in a row; in this case,
the differences from the trimming center will be added up. In order to avoid boundary errors, the transmitter trim-
ming is limited to a max. of +/− 25%.
Erasing transmitter trimming
If the tail stick is held all the way to the left at minimum pitch for approx. 10 seconds, the transmitter trimming will be
erased after the 3rd confi rmation.
Fine tuning, tracking
When replacing the rotor blades or after prolonged operation of the ECO 7, it may become necessary to adjust the
blade tracking. Slowly accelerate and increase the turning speed to the point when the ECO 7 is just about to take
off, but does not. Observe the rotor plane from the side now, pay attention to the blade tips. If you recognize (as de-
picted) a difference between both blades, you should make a note of which blade runs along the upper plane. The
blade tips are colored differently, so take note of the color of the blade which runs too high. Shut down the rotation
again. Adjust the blade angle of the blade that is too high with the Allen key now. The blade angle is adjusted by a
linkage of the paddle pushrod near the blade holders. Turn the screw (1) of the higher-running blade clockwise. Pro-
ceed with care, half a revolution or one revolution may well be enough for offsetting a full centimeter. If the tracking
difference was more than a centimeter, we recommend not just to lower the blade running too high but to raise
the blade running too low as well. Turn the screw of the lower running blade counterclockwise for this. Reexamine
the tracking now – as outlined above – and correct the adjustments until both rotor blades run in one plane. Next,
examine the tracking during a hover fl ight, preferably with an assistant
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concentrating on the rotor blade plane while you navigate.
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