Right...................... (I think :?: )
So now we come to the core of the matter, Fred.
A symmetric wing produces no lift at 0 degree of incidence, the same as a "flat" wing produces no lift at 0 degree of incidence. They both only produce lift by deflecting air downward. Neither wing produces any induced lift
A non-symmetric wing produces lift by both deflecting air downwards, via the underside of the wing, AND produces lift from the camber on the top of the wing. (What I call 'induced lift')
Assuming what I've just written to be true, Question; Why does any one bother producing a symmetricaly cambered wing when, according to the above, it flys no better than a plank of wood?
Why aren't all wings semi-symmetric or flat bottomed? They produce far more lift. (Induced and reactive lift)
I know there must be a reason for symmetric wings, but I just don't know what it is. :!:
So come on Fred, you aerodynamic guru,..........hit me with the answer!