Originally Posted by Gerry__
Most likely due to better stabilization. A Ladybird flying into a 5mph headwind will need an airspeed of 5mph to maintain a hover, and so will the mqx. Their size is not the issue.
That isn't even what was being discussed, you quite clearly are trying to sound smart but you're bringing up something totally irrelevant.
Hold up a cardboard disc into the wind, measure the force required to hold it still. Now reduce the size of the disk by 50% and measure the force required to keep it in place in the same wind. With a quad you are multiplying this disk by four. You most certainly gain an advantage with smaller size.
Otherwise sailboats wouldn't need big sails, since you are proposing that the surface area going into the wind has no effect at all you can just as easily hold up a small sheet of paper and have the same effect as a massive sail right?
Clearly you are revolutionizing the field of fluid dynamics here...