Chapter 5 | General knowledge


Flying an unmanned aircraft is therefore based on a number of aerodynamic principles as described earlier in the chapter. However, there are also risks in aerodynamics. For the unmanned aircraft with rotors, there are two potential risks.


The downward deflection of air that occurs after a wing profile has broken through the undisturbed airflow is called downwash. Due to the shape and position of the wing profile, downwash will always occur when lift is generated by a wing.

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