Science & TechHow it works
Planes fly because their wings shove air downward.
A wing is tilted slightly and curved on top. The oncoming air follows the surface and is deflected downward behind the wing. By Newton's third law, the air pushes the wing up in return. At the same time, air flows faster over the top, where pressure is lower. Both descriptions capture the same force: lift.
Useful: The textbook 'equal transit time' story is wrong; aerobatic planes fly upside down just fine.
Source: en.wikipedia.org