PRISM QUICK START GUIDE
5
This mode can be selected in an emergency situation, and will command the aircraft to automatically
return to home and land. The home position is recorded automatically when the aircraft is armed and the
aircraft will return to this exact original takeoff position. For this reason, ensure that the drone may safely
be landed in extreme circumstances, especially operating from a moving platform (such as a truck, boat,
etc).
As part of the preflight planning, the pilot should identify the height of all tall objects in the flight
operations area. The RTL ALTITUDE should be set to a height that is greater than that of the tallest object
with a comfortable margin of error (10-20%). This is done to ensure that the aircraft can always maintain
separation from all objects while autonomously returning to land. This is set in the SAFETY menu of
WattsQGC.
Once the RPA has arrived above the home position, it will automatically descend and perform a landing.
This situation is described in detail in the Emergency Procedures section.
The RTL altitude and behaviour can be set via the GCS prior to flight.
RTL MODE (RETURN TO LAND)
