ORIGINAL: csisfun
Hi,
I am currently building a really small plane (29" wingpan, with a wing area of 106sq in), and I was wondering about wing loading. My calculations foresee me having around 14 oz./ft2. For a plane of such a size, do you think it is very high?
According to scaling rules, the wingloading of a scale model should be reduced by the scale factor's ratio.
For instance, a 1/6 scale model of a full-size Piper J-3 Cub should have 13.3 oz/sq.ft wingloading instead of 80 oz/sq.ft as the full-size.
Another reference is the cubic wingloading.
For instance, the wing loading of a full-size Cessna 152 is about 167-oz/sq.ft. - a model with such a wingloading would hardly be able to fly.
However, the full size Cessna has a cubic wingloading of about 13 oz/cu.ft, which puts it at the high end of a scale model category regardless of size.
As a comparison, your model has a cubic loading of 16 oz/cu.ft, which is rather high if compared with a typical sail / park flier cubic loading of 4 - 7 oz/cu.ft.