english: Conventional wisdom says that you need at least four fixed motor propeller pairs in order to fly, because there are four degrees of freedom to control: roll, pitch, yaw and acceleration.
non_english: Konvencionalna modrost pravi, da potrebuješ vsaj štiri fiksne motorne propelerske pare, da lahko leti, ker nadzorujemo štiri stopnje prostosti: obračanje, nagibanje, zavijanje in pospeševanje.