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e) Setting the Centre of Gravity
The model airplane must be set by proper placement of the flight battery (and, if required, by addition of trimming lead)
so that the centre of gravity is approx. 65 mm behind the nose strip of the wing.
To do so, mark the corresponding centre of gravity position at the bottom of the wing with a pen. From the bottom, hold
the assembled and ready-to-fly model at the measured positions with your index fingers (or a corresponding device).
If the centre of gravity is set correctly, the model airplane should be leaning slightly forward.
Important!
Always measure the centre of gravity with the cabin hood in place.
For the first flights, set the centre of gravity at approx. 62 mm wing depth instead of at 65 mm. The best
centre of gravity then can be reset slowly.
Figure 9
f) Checking the Control Functions
Before starting your model for the first time, you need to familiarise yourself with the remote control, the control func
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tions and test the model functions. The functions and commissioning of the remote control system can be taken in the
operating instructions separately enclosed with the remote control. The following figures show the respective function
symbolically based on a model plane and a remote control transmitter.
Always turn on the transmitter first and put the speed control lever to „Motor off“.
Connect the flight battery to the flight controller (see figure 8, item 3). The flight controller now checks the „Motor off“
control signal of the transmitter. Depending on how the motor brake is programmed, the flight controller‘s readiness
for operation is signalled by one or two sounds.
