If you scale the r/c airplane to the correct moments of inertia and the
correct weight, they have quite close correlation on spin properties to
a full size identically shaped plane. If you slow down the film to also
correspond to the scale effect, it is very difficult to tell the difference.

Most r/c models have much lighter wing loadings and much less inertia
than a full size plane.

So your answer is - both. The weight distribution and the wing loading.


In article , "Ralph the Red"
wrote:
Here's a good question. How come when you stall an R/C Airplane and kick
full aileron at it you can't get a stall spin like in real planes? I've
tried it with multiple R/C planes and never have seen anyone else have it
happen. Is it a weight or wing loading issue?