What are airfoils?

Airfoils are special shapes that help planes and birds fly by making air move faster on top than underneath.

Imagine you're pushing a toy car through a hallway. If the hallway is wide, the car moves easily. But if it narrows, the car has to speed up to get through, just like air when it goes over an airfoil!

Airfoils are curved on top and flatter on the bottom, kind of like a spoon. When air hits this shape, it flows faster over the top than under the bottom. This makes the air push up harder underneath, like when you blow across a piece of paper to make it lift.

That upward push is called lift. Without it, planes would just fall back down like a leaf in the wind. Birds use the same idea with their wings, they're natural airfoils!

So whether it's a bird flying or a plane soaring through the sky, airfoils help them stay up there, making flight feel easy and fun!