How does the wings of a bird help it?

Answer 1

The wing of a bird helps it fly by providing lift. when the bird is moving at high speed the air passes over and under the wing and creates lift.

If the bird wing flaps down it deflects the air and creates drag

Answer 2

The Airplane wing is a curved shape with varying thickness that is designed to produce Lift that is centered at approximately 1/4 of the distance from Nose to Trailing Edge. This is called the Center of Lift or the Quarter Chord. The placement of the Wings with respect to the fuselage is such that the weight of the aircraft is supported at almost the same point as the center of Lift. This helps balance out the forces acting on the airplane. If the Weight is located AFT of the wings Center of Lift, then the airplane will try to pitch nose UP. The aircraft Tail surfaces and controls apply a force to pull up on the tail and balance the airplane. The wing not only produces a Lift Force, it produces a Moment that tries to twist the wing's nose in the down direction. So even though the forces are balanced with Wing Lift and Weight and the Tail forces, this Moment must also be taken into calculation. The wing has one or two Spars that run the length of the wing from one tip to the other and these carry all the forces. Wing Spars of the large passenger jet airliners are made of heavy plates and I-beams of Aluminum Alloys and Steel that are riveted together. Even in a crash, these spars usually do not break at the point where it joins the fuselage because of the way it is constructed.

Answer 3

Bones are hollow, system of sir sacs gives constant supply of oxygen.

Birds beat their wings when they take off to get the thrust and lift.

Air pressure on the top of the wing is grater then underneath that provides lift.

Answer 4

Many people, including many pilots do not understand how wings work. Nakedleader: Again the answer below (in italics) referring to the 'kite effect' (which is unknown in aerodynamics as far as I can tell) only shows part of the effect and is oversimplified. The underside of the wing provides only part of the lift. The turning effect and acceleration of the air above the wing contributes to the pressure differential which creates lift. It is a combination of the lower surface effect and the upper surface turning effect that creates total lift. A kite exhibits this effect in the same way as a sailboat or a hanglider. It is simply nonsense to refer to this effect as if they are in isolation. Air is a fluid and behaves in a holistic sense. Anyone who doubts this only needs to look at smoke streamlines in a wind tunnel for proof. It is a complex interaction of these two effects that delivers the lift we see in aircraft. It has nothing to do with the thrust of the engines otherwise gliders (and helicopters) could not fly. It is simply energy (potential and kinetic) and air flow. Wings gain some lift by virtue of Bernoulli's principle, but most of their lift comes from what is called kite effect. The thrust of the aircraft's engines forces the airframe forward into the air, and with the wings tipped up to a degree (the angle of which is called angle of attack), the air "rushing into" the wing (the wing is actually rushing into the air) will strike the underside of that wing. This will deflect the air downward, and the opposing reaction will be one of upward force on the underside of the wing - lift. This answer is almost entirely incorrect. Flat wings do produce lift very well. The reason they are not widely used is that their stall characterists are more severe than a curved wing and they cannot achieve as great an angle of attack because the flow separates at the stagnation point earlier as the angle of attack increases. The other reason is that curved (cambered) wings give more room for structural bracing, (which allows a cantilevered wing) fuel and other systems. : Simply put, wings create lift by turning airflow downwards. : This is a combination of an inclined plane redirecting air downwards and the void effect caused by the inclined plane moving through air. : The inclined plane causes a pressure differential behind the inclined surface into which the air above as a moving fluid, moves in order to equalise. : In the process and in concert with surface friction the flow follows the top of the inclined surface and accelerates. These combined factors create a downwards turning effect which in concert with Newton's Third Law and the pressure differential, create lift. : This explains how supercritical aerofoils can be flat on top and curved on the bottom or how symmetrical aerofoils on aerobatic aircraft can work. Some great references including one sponsored by NASA are below: www.iop.org/EJ/article/0031-9120/38/6/001/pe3_6_001.pdf?request-id=8e04a99f-32bd-4656-9975-b35942973b1a http://www.grc.nasa.gov/WWW/K-12/airplane/wrong1.html

Aeroplane WingsMany people, including many pilots do not understand how wings work. The previous answer below, demonstrates this.

"when air flows quickly over a top-curved surface it creates an area of greatly decreased pressure that lifts the plane off the ground.

flat wings cannot generate lift, only makes the object less able to fall toward the earth due to wind resistance."

This answer is almost entirely incorrect.

Flat wings do produce lift very well. The reason they are not widely used is that their stall characterists are more severe than a curved wing and they cannot achieve as great an angle of attack because the flow separates at the stagnation point earlier as the angle of attack increases. The other reason is that curved (cambered) wings give more room for structural bracing, (which allows a cantilevered wing) fuel and other systems.Simply put, wings create lift by turning airflow downwards.This is a combination of an inclined plane redirecting air downwards and the void effect caused by the inclined plane moving through air.The inclined plane causes a pressure differential behind the inclined surface into which the air above as a moving fluid, moves in order to equalise.In the process and in concert with surface friction the flow follows the top of the inclined surface and accelerates. These combined factors create a downwards turning effect which in concert with Newton's Third Law and the pressure differential, create lift.This explains how supercritical aerofoils can be flat on top and curved on the bottom or how symmetrical aerofoils on aerobatic aircraft can work.

Some great references including one sponsored by NASA are below:

www.iop.org/EJ/article/0031-9120/38/6/001/pe3_6_001.pdf?request-id=8e04a99f-32bd-4656-9975-b35942973b1a

http://www.grc.nasa.gov/WWW/K-12/airplane/wrong1.html
They provide stability and lift. They are a vital part to any aircraft.
The answer might be different from what you are expecting. See link.

The following wonderful quote is taken from the link. As a technically illiterate person myself, this probably describes most of my well-meant science contributions.

Many years ago, a famous aerodynamicist, Dr. Theodore Von Karman, instructed his assistant: "When you are talking to technically illiterate people you must resort to the plausible falsehood instead of the difficult truth." (From Stories of a 20th Century Life, ISBN 0-915760-04-5, by W.R. Sears, former assistant to Von Karman).
Air is being forced down by the wings . This creates a strong forced when the plane is moving quickly so it is then able to take off.

http://www.YouTube.com/watch?v=ocni_Whz5EA&feature=related

Watch this video, it will explain even more.

Answer 5

A wing generates the lift that allows a plane to fly. It does this with it's shape, known as an airfoil. It is shaped like a tear drop with the upper surface being curved more than the bottom. The additional curve on the top surface causes the air passing over it, to speed up. The increase in speed lowers the air pressure above the wing. The difference between the upper/lower surface pressures generates the lift. Wings also have flaps/ailerons that change the pressures on the wings allowing the airplane to bank left/right and land.

Answer 6

Wings are used to provide lift and, in the form of propellers and turbines, thrust.

Answer 7

They aren't. That is, they aren't on all airplanes. On those where they are, it's because the designer wanted them that way.

Answer 8

Its main function is to keep the airplane in the air.

Answer 9

to fly