Yini eyenza izindiza zindize?
Lapho injini yezindiza iqala ukusebenza, i-propeller idala umfutho bese idonsela indiza phambili. Njengoba indiza iqhubekela phambili, umoya omningi uyaqhubeka uwela phezu kwephiko. Amaphiko ezindiza aklanyelwe ukuba agobe phezulu futhi abheke phansi. Ngenxa yalokho, ama-molecule omoya athatha isikhathi eside ukudlula phezu kwephiko kunangaphansi kwalo. Lokhu kudala umehluko ekucindezelweni komoya phakathi phezulu nangaphansi kwephiko. Umehluko ekucindezelweni komoya ubizwa ngokuthi i-Lift. Njengoba umfutho ukhula futhi udonsela indiza phambili, ekugcineni ukuphakama kwendiza kukhula ngokwanele ukuba kunqobe isisindo nokudonswa futhi indiza izokwazi ukundiza.