acceleration question

[Ardy123]

Is not what a non symmetric airfoil does. It simply means that top and bottom of the wing are shaped differently. But the change in AOA still produces a linear lift curve. I.E. a +1 and -1 deg change in AOA will have the same effect on both sides as long as you are not on the edge of stall.

Now I'm really confused, I always thought that the thickness and curve of an airfoil changed the cl factor of the wing for a given AoA, so if it was non-symmetrical it would have different cl depending if the wing was right side up, or up side down?

[hitech]

Yes the CL will change but the cl curve (is really a straight line) threw most of the non stall angles.

The big difference is the with a non symmetric wing the curve shifts. So that at 0 AOA you have a positive CL instead of 0 with a symmetric foil. And at -1 or -2 deg aoa you will have 0 lift.

so if the plane is flying with 5 Degrees AOA for instance if the prop is adding 2 and subtracting 2, (3 and 7 degrees net) the cl would change the same amount but just in different directions.

HiTech