Originally Posted by blakevan
Can someone explain cube loading in laymen terms? I have read a bunch of technical stuff and get that it seems to be about scaling of a plane and know where to find the calculator but that is about it. Does it equate to buoyancy of a boat?
more or less. weight for a given area of wing. planes with higher cube loadings will have more inertia, will track a little better, fly better in wind, because they're more resistant to being pushed around. Can also mean that it's harder to recover them from flying errors, though you could probably also say that they resist being flown into errors a little more.
Planes with lighter wing loadings are generally easier to fly, pushed around more in wind, will happily change direction in a heartbeat, have less inertia to carry out maneuvers with energy alone, if you get into problems it's easier to fly out of, but it's easier to fly them into problems also.
A short example... my 47" Edge is really slick and smooth and axial for rollers. Ultimate AMR is super floaty and gives you a ton of chances to flit and float about, bounce out of issues. While the AMR can get really slow and by a lot of measures is easy to roller, the Edge is easier to roller because the stirring is more consistent and even because it has more weight carrying it through the maneuver. Ask me which one I like to roller better, and it's not an easy choice