Eli5: what are the benefits of a normal helicopter design vs a quadcopter we see on drones?
In: 210
You can safely land a helicopter with autorotation without power on the main engine through carefully changing the pitch of the rotorblades.
Quadcopters have fixed-pitch rotors and do their steering by changing the rotor speeds.
If power fails, it’ll drop like a stone.
If even one motor fails, it will be uncontrollable. (I think hexacopters and octacopters have more tolarence.)
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