Yet another confirmation on why the hydrofoil effect is not how an airplane actually flies.
I'll elaborate because its actually very interesting. I read this in a science book (yes i can read!).
Hydrofoil Effect: The shape of the wing causes air to pass over the top of the wing very quickly causing low pressure and air to pass slower under the wing causing high pressure. Low pressure on top, high on bottom. Thus lift.
Case:
1. If the hydrofoil effect is true, then why are the jets mounted on the bottom of the wing?
2. Every time the hydrofoil effect is shown in a diagram demonstrating how it works the wing is horizontal, yet on an airplane they are angled 13 degrees up.
The Reality
The hydrofoil effect is something made up by aerospace engineers to assist in explaining how airplanes fly. It's a comforting explanation that worked with kids and then eventually adults and science textbooks. The reality is, its not how it works at all and they only use it because if they used the real explanation people would be too scared to fly.
How Flying Actually Works
The wing is tilted slightly up facing head on into the wind. The front of the wing is much thicker than the rear to help catch more air. Flying actually works off of newtons third law of motion. Every action has an equal and opposite reaction. So the air passes in front of the tilted wing. It hits the fat top (front) of the wing very hard causing displacement. This displacement shoves the wing violently downward. The wing, along with gravity, pushes back because of newtons third law. The shape of the rear of the wing helps slice through the airspace and lift is created.
So airplanes really fly by creating as much downward force as possible.
If it helps, think about how a bird flies. Its the same basic concept. It uses its muscles to shove the wings downward, his body goes up, the shape of his wings help cut through the airspace during the upward flap. The harder the bird pushes downward the more lift is created.
Just thought you guys should know that
