How Do Planes Fly Upside Down?

Most people think airplanes need to be right-side up to stay in the sky because they look like birds with wings on top. But actually, a plane flies upside down just fine! It all depends on how it moves through the air.

Imagine holding your hand out of a car window. If you tilt your palm slightly upward, the wind pushes your hand up. This is called angle of attack. A plane can fly upside down by tilting its wings so they face the ground while moving forward fast enough. The air hits the bottom of the wing and pushes it up toward the sky.

Some planes have special symmetrical wings that work exactly the same way whether right-side up or upside down. Pilots in air shows tilt their noses up high when flying backwards to keep this aerodynamic lift strong. Gravity pulls them down, but the rushing air pushes them up harder.

If a plane goes too slow while upside down, it will fall because gravity wins. But if it keeps its speed up and holds that tilt, it stays in the sky like nothing is wrong.