Intel Falcon 8+ User Manual page 78

Table 3-6. Operational guidelines in case of emergency
More than one motor stop
working in flight.
Gusts of wind above the drone
limits / too much wind
Loss of information on the Status
Display of the CTR
78
If possible, immediately land the system at its current location with
careful control commands avoiding strong control stick inputs. Identify
and repair the cause of the failure before flying again.
If two or more motors are lost, depending on their position, stable flight
characteristics can no longer be guaranteed.
When sufficient thrust is missing, the system has the following priorities:
1.) Attitude
2.) Position
3.) Altitude
Meaning that if no sufficient thrust is available, the system will first
descend. If still not enough thrust is available, it will start drifting but still
try to hold the attitude. Only if physically impossible, the attitude of the
system will also be compromised.
In GPS-Mode the Intel Falcon 8+ UAV is capable of flying in wind speeds
up to 12 m/s. If GPS-Mode is active and there are gusts exceeding 12 m/s
you must:
1. Switch to Height-Mode.
In this mode the UAV is capable of flying in wind speeds 
up to 16 m/s.
2. Descend to a lower altitude, as wind speed usually decreases in
lower altitude.
3. If you are in Height-Mode and wind speed exceeds 16 m/s, descend
and if the wind is still too strong, land the system.
As long as the flight characteristics of the UAV remain unchanged, fly
back, land, and analyze the cause of the display failure.
If flight characteristics changed in regards to position or altitude control,
consider changing to Height-Mode or Manual-Mode.
User Manual ®
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Intel Falcon F8+