how the plane lifts up in air?

Answer 1

This is where many people become confused.

You can quote about negative and positive pressures all day if learned out of a school book not really understanding what physically is taking place on an aircraft wing.

Airfoil (the cross-section shape of a modern wing) helps moves the air EFFICIENTLY over the wing. The curve on the top of the wing might slightly aid in lift, it does not "levitate" or "suck into the air" actually "lifting" the plane off the ground by the wings.

What does lift the plane off the ground you ask? Its AIR DEFLECTION. Try this. Drive down the road and stick your hand out flat into the wind, tilt it up, tilt it down. Your hand moves up, it moves down. Your hand does not have an airfoil but it works the same way. Its not magic, its that simple. The same goes for putting your hand in the water in the same way on a boat, the only difference is that water is more dense and the results are more amplified

The wing shape is the way it is because, unlike your hand, it is more efficient in directing the air , as not to create drag and turbulence.

Our modern planes could have wings as flat as a pizza box and still fly no problem (like an aerobatic plane wing - symmetrical), but not be as aerodynamically efficient = undesireable gas mileage and stability. When planes are flying are they nose up or nose down? They are slightly nose up, deflecting wind on the bottom of the wing. Its almost all about air deflection that keeps a plane flying, plain and simple.

Some of the first planes in history had flat wings and flew.

I hope this made it easier to understand for you, good luck in your quest!

Answer 2

The Dynamics of Airplane Flight .

How Wings Lift the Plane
Airplane wings are curved on the top which make air move faster over the top of the wing. The air moves faster over the top of a wing. It moves slower underneath the wing. The slow air pushes up from below while the faster air pushes down from the top. This forces the wing to lift up into the air.

Answer 3

From what I can remember having watched it on Discovery channel
it works on the principal of positive and negative pressure. Positive pressure is created with speed under the wing and a negative pressure is created on top of the wing causing the plane to lift.

Answer 4

while Bernoulli's principle plays a part in lift it is not the whole story. Newton's first second and third laws play a large part, dont for get about angle of attack, or about environmental effects, If Bernoulli is totally correct, how is a plane able to fly inverted? I invite you to read Aerodynamics for Naval Aviators.(available for around $20. (http://www.avidaviator.com/aerodynamics.html)
This is a must for all pilots that wish to understand completely how a wing produces lift.
Also, on line, take a look at "See how it flies" by John Deker. He has a very interesting way of explaining this.(http://www.av8n.com/how/)

Answer 5

You need to heed av8r's answer. Cherokeeflyer, the wings on aircraft capable of extended inverted flight, such as fighter aircraft, are different than standard aircraft wings. Do a little research.

Answer 6

Bernoulli's principal.
An airfoil (wing) produces lower pressure below the wing and higher pressure above as it moves through the relative wind.

Answer 7

basically it,s the shape of the wing...................it creates less air pressure on top & more on the bottom..........therefore lifting the wing.....................it,s more complicated than that.....but you get the basic idea.

Answer 8

as the airplane reaches its take off speed the pilot shouts NOW!!! and whent he passengers all hear this they all push the seats in front of them and eventually it takes off!

Answer 9

air becomes very solid at high speed that'is basically how it works