>lot more air in order to maintain the thrust necessary to stay at altitude. Not really... you need to move the same MASS of air, just more air VOLUME. Bigger

>lot more air in order to maintain the thrust necessary to stay at altitude. Not really... you need to move the same MASS of air, just more air VOLUME. Bigger props solve that problem, at the expense of moving a large prop (greater moment of inertia, slower acceleration).