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Why do planes fly?

Updated: 3/21/2024
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Wiki User

12y ago

Best Answer

Planes don't fly.

Planes are woodworking tools, used primarily to smooth rough timber.

Aircraft, on the other hand, do fly.

They do so by utilising nature's abhorrence of a vacuumn.

Simply put, as an aircraft is pushed forward, air flows over and under its wings.

A basic wing, or aerofoil, is flat underneath and curved on top.

As air flows over & under the aerofoil, the air flowing over the upper surface has to travel further, because of the curve.

As nature dislikes differential pressures so much, both the air flowing over the wing and the air flowing under it have to arrive at the rear - or trailing - edge of the wing at the same time.

In order to do this, and because of that curved upper surface, the airflow passing over the wing travels faster than the air flowing under it.

If the air flowing over the wing is travelling faster than the airflow beneath the wing, the pressure of the air over the wing decreases.

Again, with nature disliking differences in pressure so much and with lower pressure over the wing than under it, the net result is a lifting force - which we'll call Lift - which actually supports the wing, thus anything attached to it.

And if you can increase the forward speed of your wing, to a point where this Lift force overcomes the weight of the wing and the airframe it's attached to, the whole aircraft becomes airborne...

...Bon voyage.

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12y ago
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AnswerBot

1mo ago

Planes fly due to the combination of lift and thrust. Lift is generated by the wings as the plane moves forward, creating a pressure difference that keeps the plane airborne. Thrust is provided by the engines, propelling the plane forward to maintain lift and overcome gravity.

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12y ago

Depends on the type of plane and also what you want to know about how they fly its very complex. Best luck is to visit an aviation website.

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