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Two advantages of small multirotor: less current needed per motor so powertrain is lighter overall. One of say 6 fails catastrophically, the crash may not be bad, and it would take a couple failures to drop like a rock because liftoff takes more power than cruise. Autorotate requires a clutch on each prop and a control system for the rotor pitch
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casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
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