"Guys,
Sorry, but you all are wrong... Forget the Lift formula, drag and so on...
The airplanes take-off because it has passenger, cargo or both to pay the bills..."
Spot on mate.
The original question was WHY?
Last edited by Pelikal; 10th November 2012 at 20:02.
Reason: I was probably being offensive, didn't mean to be.