I don't mean to be rude, here, but I find it worrisome that someone who has completed 3 years of training in Aerospace Engineering could make this statement:
Now picture that 2 air molecules hit the leading edge of the wing at the same momment. Now picture them travelling across the top and bottm of the wing and reaching the trailing edge of the wing at the same exact time. Which one went faster? The answer is the one going across the top of the wing because it had to travel a longer distance in the same amount of time! Insert Mr. Bernollis' set of math, and VOILA, the upper surface moving air is travelling faster, and thus must have lower pressure than that air passing under the wing.
I wonder if RCaillouet3 learned this concept in Aerospace Engineering School or Highschool (I am serious, now), and would like to refer him (and anyone interested) you to a pretty good aerodynamics reference:
http://www.av8n.com/how/htm/airfoils...sec-flow-intro
The bottom line is: THERE IS NO GOOD REASON WHY AIR TRAVELLING OVER THE WING MUST REACH THE TRAILING EDGE AT THE SAME TIME AS AIR TRAVELLING UNDER THE WING
Respectfully
Luis