3 ms·

I can think of some reasons: (1) redundancy, (2) economies of scale, and (3) changed regulatory regimes.

• edmundhuber 7y ago
  The flying car designs I've seen have no true redundancies. They look like they would be dangerously unstable if they tried to run on fewer than all motors.
  • FabHK 7y ago
    The Volocopter has 18 rotors (fixed, electric motor, with 1 degree of freedom - doesn’t get much simpler) attached to 9 battery packs, and at least 4 can fail (even more when they are “nicely” distributed) and it's still controllable and landable. And they could still throw in a ballistic rescue parachute.
    • gambiting 7y ago
      Unless of course the power supply fails, in which case we're back to the point I brought up earlier - you have neither autorotation nor gliding to fall back on, the vehicle just falls out of the sky like a brick - the parachute would help but I'm not sure how feasible that is.
      • fiter 7y ago
        Which power supply? According to the poster there are 9 separate battery packs which, presumably, are the power supplies.