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15. Calibrating the position sensors
If the quadrocopter does not hover steadily in one spot but is always flying in one direction, the trim may need correct
-
ing. However, if the trim needs to be adjusted significantly, it may be necessary to re-calibrate the position sensors
in the model.
Proceed as follows:
Place the quadrocopter on a flat, horizontal surface.
Move the two joysticks on the transmitter to the lower right
position and hold the two joysticks in this position.
The transmitter emits a short beep and the LED on the
quadrocopter begins to flash.
The joysticks can now be moved to the centre position.
The calibration is completed after a short time and the red
LED on the quadrocopter lights up continuously again.
Check with a test flight whether the quadrocopter is still
showing a strong tendency to fly in a particular direction.
Small tendencies can be offset by trimming.
Calibration of the position sensors can be repeated if nec-
essary.
Figure 21
