I agree the equal transit theory is wrong because that theory assumes the air molecules travel the top and bottom of the wing at the same time. Everything I said it true and it’s not the equal transit theory. I"ve been building RC planes airfoils for 20 years and again, the bottom line…lift is caused by the difference in pressure on the top and bottom of the wing. This is due to the airfoil causing the air on the top of the wing to spread out in a state of less pressure than the surrounding air. Hence lift. You can respond again if you disagree but I think I’m done explaining to you.
I’m not the one who needs an explanation. Do yourself a favour and watch the first video, I’m out.
The video is saying the same thing as I am. The deflection of the air obviously causes a vacuume where the air would have been hence causing lift. Glass half full half empty eh?
Here is a very well done and free series on YouTube from Pilot Training System:
I don’t know who gave you abuse, but I would report them. Your question is an excellent one and fundamental to understanding one of the major principles of flight. Don’t hesitate to ask more questions. We are all here to provide support and share our knowledge of aviation.
I’m afraid you are totally incorrect and @PZL104 is accurate in his description. Please see the research article below.
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Too low AOA - wasted ressources ^^
No, both concepts together are correct.
Bernoulli found it like this: when you sit in a boat in a fast current and get close to a wall t boat will get sucked against that wall. This is because the water has to flow faster between the curved side of the boat and the wall. This is the principle of a wing‘s airfoil.
A higher AOA will increase the airfoil (sry I can‘t express it with correct terms in english) and hence the speed of the air changes while the centre of pressure moves forward.
At the same time the lower trailing edge of the wing will point the airflow down. This is very noticable on helicopters (I‘m NOT a heli pilot so airsmashers, bear with me 
): when they increase the pitch (AOA) of the blades they create more lift AND at the same time they create a higher down wash.
QUESTION.
How many Forum members does it take to answer the Op’s question.
IE
What is AOA?
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I doubt if the OP will ever ask another question, too many answers to keep track of!!
Hi there guys , I didn’t ever think that there would be this many replies…Thanks so much for your info and help.
Here you go, a NASA article on lift. The lower pressure on top of the wing causes lift. End of story.
Dynamics of Flight (nasa.gov)
NASA: " How Wings Lift the Plane
Airplane wings are shaped to make air move faster over the top of the wing. When air moves faster, the pressure of the air decreases. So the pressure on the top of the wing is less than the pressure on the bottom of the wing. The difference in pressure creates a force on the wing that lifts the wing up into the air.
Good idea to withdraw. Hard to argue with NASA.
This article from NASA debunks your theory of lift…
Try NASA instead of Youtube. Also, please don’t go around telling people they are wrong before you do your research.
yes very good and also see this NASA link which says your proposed theory is incorrect Incorrect Lift Theory
On a more serious note, where is our world update!?
That link isn’t my theory at all. Again, here is the correct lift theory.
Lol I was taught the Barnoulli lift theory when I first started to learn to fly when I was 12. Haha. Its actually really interesting reading all the different theories, so thanks for the discussion.
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