
User Manual UX11
Stall recovery
The aircraft automatically switches to this mode if it detects an abnormal roll or pitch angle. It switches
to simpler control laws to recover.
Landing (Alarm 2)
The aircraft automatically switches to the
Land
flight mode, see below.
Figure 8-10 Land mode triggered by a level 2 alarm (here, battery low alarm).
Spiral (Alarm 3)
In case of a level 3 alarm, the motor is shut down and the aircraft starts to return to the ground via
a controlled spiral procedure. The control laws compensate wind drift. Example of alarm 3 is given
below.
Figure 8-11 Spiral mode triggerred by a level 3 alarm (here, critical battery level).
Delair
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