3 ms·

It seems to me it's you who got things wrong. Explanation about wing forcing air down is very VERY wrong.

• ajuc 16y ago
  Then how is momentum preserved?
• hristov 16y ago
  How so? The wing has to exert a downward force on something if it wants to go up? If not air then what ?
  • borism 16y ago
    the lift comes from pressure differential between "top" and "bottom" surface of the wing - that's the definition used by professionals in the field. Here's why definition about deflection of the air is generally not accepted: http://en.wikipedia.org/wiki/Lift_(force)#Criticisms_of_deflection.2Fturning http://en.wikipedia.org/wiki/Lift_(force)#Criticisms_of_defl...
    • hristov 16y ago
      The link you provided does not support what you are saying. The link you provided actually agrees with me saying that the theory about air being deflected down is correct. It merely says that while correct, this explanation is not rigorous enough to do engineering. Which is totally right. But I was not trying to do any engineering, I was trying to provide a simple explanation about how a wing works and how that relates to Newton's third law of motion.
      • borism 16y ago
        I'm glad that you found yourself vindicated and will refrain from interfering with your righteousness.