Another crazy idea that passed through my brain. As I understand it, airfoils generate lift when they decrease pressure above the wing, by speeding up the flow of air.
So... my idea here increases flow in a different method, by employing a venturi. That suggests to me that the pressure will reduce, and subsequently have lift, provided the drag is not too great. I realize there is a slightly larger surface area, but there is also a reduced thickness in the conventional wing chord section. Also, the need for tip winglets would be largely eliminated, and thus some efficiency gained.
I'm hoping some of you trained in aerodynamics can review this and tell me if you think it has any value. I can't find any references to such a design. Seen it before anywhere? I believe each design has strengths and weaknesses, and there would be applications somewhere that those strengths could be employed...
okay, the hockey game is back on, and philly is winning..woohoo! 
(let me know if this is not clear)

Chris
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