how is it possible for air plane to fly?

Answer 1

Plane wings are a special shape called an Airfoil. The airfoil shape makes air go faster on top of the wing, and slower beneathe it. The slower moving air pushes harder against the wing than the faster moving air above, so the wing (and thus the whole plane) is lifted upwards.

Planes also need Thrust, which is force to move the plane forward. The wings don't lift unless air is passing over them, so a propeller or jet engine is needed to move the plane forward, and put air over the wings.

Answer 2

Four forces acts on a plane during flight. they are: Lift, Gravity, Thrust, Drag. for a plane to fly, the lift should be greater then gravity pull. To achieve this, this will have to take place:

1) Engines create thrust by sucking air in and pushing the plane forward.

2) When the plane moves, air will rush towards the wing from the front, and the wing seperates the air into 2 layers. The upper layer goes above the wing, the lower layer goes below.

3) As the wing is designed so that the upper surface is more curved than the bottom, the air above the wing will move faster than the air below the wing. This creates an area of low pressure above the wing, and an area of high pressure below the wing.

4) As wind always move from a region of high pressure to a region of low pressure, the air below will move upwards to occupy the area of low pressure above. Hence, the wing is being pushed up by the air, and thus, lift is created. This is also due to the Bernoulli's Principle in Physics.

Answer 3

The way that the wings are made allows different rates of air flow across the top of the wing versus the bottom of the wing. This causes a lower pressure on the top of the wing than across the bottom. This lower pressure creates lift on the wings. The faster the air flow, the greater the lift. That's why a plane has to reach a certain speed before it will take off.

Answer 4

As I feared, there are some incorrect responses to this. The reason has nothing to do with the curved surface or different path length above and below the wing, as is obvious if you have ever seen an airplane fly upside down (which they can do quite easily if the engine is suitable for inverted flight). The correct reason is that the forward motion of the slanted wing deflects air downward, and the downward momentum thus created results in an upward momentum imparted to the wing, realized by lower pressure above the wing than below it.

Answer 5

The top of the wing is curved, while the bottom is flat. When the plane passes through the air, the air must travel farther, and thus faster over the top of the wing. This causes lift, or a sucking action almost. Think of sand on the bottom of a creek. Fast moving water will "suck" it off of the bottom. Air flows like water and the fast movement over the top of the wing lifts it up.


Hope that makes sense.

Answer 6

It is called LIFT. The air under the wings lift the plane.

Answer 7

for something to fly its all about lift drag thrust and gravity you need more lift than gravity the force pushing down on the aircraft, and more trust than drag to go forward

f-16 jet aircraft avionics tech 4 years military

Answer 8

Every time I take off, I am totally amazed and ask myself "How is it possible for airplane to fly?"

Answer 9

2 words: bernoulli's principle