As the mutliple rotors are driven directly by individual electric motors, each rotor can be controlled by computerised flight systems. This provides a high level of stability, in theory making such aircraft easier to fly than a helicopter, and easier to automate. Reassuringly, multiple rotors also mean that such aircraft can rapidly compensate if one or more of their motors fail.
Flxing taxis － Urban aviators The Economist September 14th 2019
