Because stalled (even horribly stalled) airfoils still deflect air and hence produce lift (although if not as much as non-stalled ones) and kites are lightweight.Ok, sure. And it works at high angles of attack when the airfoil is stalled why?
If you ever experienced a full stall in an airplane, you know that it doesn't go from 1G to 0G, not even remotely close. If it's not 0G, then it is not 0 lift.
Stalled airfoils lift peaks at 45 degrees of angle of attack, but with said peak lift being smaller than the peak lift pre-stall that happens at say 15 degrees.
How does the title of this thread go?