What is there about this airfoil which provides an improvement for models of this size?
I ask, because I find that if models of this size - have a structurally good wing-- the really relevant factor is simply wing loading .
a simple shape such as the old 2412 -or even a sym foil of 12 %-- are effectively the same .
The flying speed of these model aircraft is so varied - that I simply can't see how one can develop a superior foil for such broad parameters of use.
That this airfoil will be better at a specific point (aoa and speed )-I can understand
If someone really can explain this - please steop up .
On gliders - where parameters ar much tighter - i understand how shape can be more critical -but not on models such as described here.