65
Yaw Function
The torques that act on the model are balanced by the two right-turning and the two left-turning propellers, and the
quadrocopter hovers steadily in the air.
If you move the joystick for the yaw function (see also Figure 1, no. 13) to the left, the electronics in the model increase
the speed of the propellers to the right (clockwise, as seen from above) and at the same time reduce the speed of
the propellers turning to the left (anti-clockwise). Thus, the total lift remains the same, but now a torque acts on the
model turning the quadrocopter about the vertical axis to the left, as seen from above. (See the arrows in Figure 12).
If the joystick is moved to the right, the speed changes of the propellers come out exactly the opposite and the model
turns to the right.
Figure 12
Roll function
The roll function allows you to move the quadrocopter sideways to the right and to the left (see Figure 13). Steering
occurs with the right joystick (see also Figure 1, no. 3).
If you move the joystick to the right slightly, the electronics in the quadrocopter change the propeller speeds so that
the model tilts sideways slightly to the left and thus also flies to the left.
If you steer to the right on the transmitter, exactly the opposite speed changes of the propellers occur and the model
flies sideways to the right.
Figure 13
