F) Setting The Barycentre - Reely SKY Rex-X 500 Bedienungsanleitung

The speed control has a safety device to prevent inadvertent engine start-up.
When contact is made with the rechargeable battery although the transmitter is not switched on or the
speed/pitch control stick was not set to zero, the control electronics in the model will not cause the engine
to start.
When the transmitter is switched on and the speed/pitch control stick is set to zero once, the control
electronics in the model clears normal operating state. The control electronics indicate this by beeping. If
this is not the case, the rechargeable battery must be disconnected from the speed controller and
reconnected after approx. 10 seconds.
Caution:
To prevent inadvertent engine start-up if the safety device fails, the transmitter should be switched on. The
speed/pitch control stick must be set to zero so that no acceleration command is sent. Test this before
connecting the rechargeable battery by shortly touching the contact between the battery and the helicopter
first. Make permanent contact between battery and helicopter only after you made sure that the engine will
not start up.
f) Adjusting the Centre of gravity
Turn the main rotor so that the two rotor blades are parallel to the longitudinal axis of the helicopter.
When the battery is installed, put one finger under each of the rods of the main rotor auxiliary paddles. Now lift the
helicopter. The helicopter must now be balanced horizontally. If this is not the case, move the flight battery.
When you have determined the best centre of
gravity, mark the flight battery (1) position at a pro-
minent position of the fuselage – e. g the front
battery slide screws – with a water-resistant pen.
Thus, when you change the flight battery, you do
not have to determine the centre of gravity again.
Important! Always measure the centre of gravity
with the cabin hood in place. Also ensure that the
battery and its cables do not block any movable
parts.
Figure 8
37