Reely SKY XL 20 91 06 Notice D'emploi page 47

Pitch Function
With the pitch function you can control the flying height of the helicopter (see figure 9). For control, the left control lever
(also see figure 1, item 11) is used.
To that effect, the control stick can be moved forward and backward. Unlike with other control functions, the lever does
not keep springing back to the centre position. As the angles of attack of the rotor blades are not modifiable, setting the
flying height is effected via a common speed modification of the two rotors.
Pulling the control stick towards you switches off the motors and the rotors stop. If you push the control stick forward,
the rotors run and increase the speed according to the position of the stick. When the control stick reaches the centre
position, the helicopter should hover.
Figure 9
Tail Function
As the helicopter is equipped with two counter-rotating rotors, there is no torque around the yaw axis (rotor shaft). The
helicopter does not need a functional tail rotor for stabilization.
To allow the model to turn around the yaw axis (rotor shaft), the two main rotors run at slightly different speeds and the
model begins to turn (see figure 10). The tail function is controlled with the left-hand control stick (see figure 1, item 11).
If the lever is pushed slightly towards the left, the tip of the fuselage turns towards the left. If you steer towards the right,
the tip of the fuselage turns likewise towards the right.
Figure 10
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