please answer immediately or as soon as possible..thank you very much..God bless..
2006-09-04 01:52:48 · 12 answers · asked by Anonymous in Cars & Transportation ➔ Aircraft
The top of the airplane wing is curved.
The bottom of the wing is flat.
When air passes by the wing, the air has further to travel over the top of the wing than the bottom because of the curve and is forced to travel faster in the attempt equalize.
Since the air is spread out over the curve, it is thinner or lighter than the air going past the flat bottom.
With the lighter air (pressure) on top, the heavier air (pressure) on the bottom pushes the wing up.
It is called "the Law of Lift" and is stronger than the Law of Gravity.
If the air stops passing by the wing, the air pressure begins to equalize, and there is no more lift.
Then the Law of Gravity takes over again and the plane falls quickly until it is suddenly and powerfully stopped by the surface of the earth.
That is called Tao Barbie's Law of Rapid De-Acceleration.
.
2006-09-04 02:03:52 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The aircrafts jet engines turbo fans compress the intake of air past the core of the engine and the blast the air out of the back of the engine which produces forward motion, the rising ground speed of the aircraft also pushes the air over the aircrafts wings which because of their shape, there is a resultant positive or higher change in air pressure below and negative /low pressure above the wing produces the lift and the jet lifts off at " V rotate" speed into the clouds, somewhere around 160 to 200 mph depending on the aircraft type, example Airbus 330/340 Boeing B747-400.
The engine speed will at this stage read something like 80% thrust, this keeps the aircraft rising until cruising altitude is reached where the Pilot will level off , trim the aircraft using trim controls, apply autopilot and decrease engine speed to around 60% to maintain the altitude. Around FL320 in most big modern jets ( 32,000 feet) although they are designed to go to FL400 ( 40,000 feet) which is the operating ceiling.
The feeling inside the Jet at cruise is one of lightness, the clouds drift by, other Jets flash by! and you feel like you are not even moving very fast although in reality you are travelling at over 500mph! Listen to the music on board, have something to eat, read a book or talk to the person next to you, and if you feel like it ,a take a visit to the flight deck and see all of those dials, it is a really nice experience! done it so many times ana.
2006-09-04 04:33:41 · answer #2 · answered by Latin Techie 7 · 0⤊ 0⤋
If you look at a cross-section of an airplane wing, you'll see that the top face is much more curved than the bottom. As the plane is pushed forward by its engines, the air going over the wing has to go farther, due to the curve, than the air on the bottom. (The air, when split by the wing tends to "want" to stay together, so the air going over the top goes faster, and as it does so, the air pressure on top of the wing becomes less than the air pressure on the bottom. This pressure difference means that the wing is pushed up by the air underneath.
The whole thing is called the Bernoulli principle, and there's an equation that tells the amount of lift force generated, given the plane's speed and the difference in surface areas of the upper and lower faces of the wing.
2006-09-04 02:04:11 · answer #3 · answered by Jamestheflame 4 · 0⤊ 0⤋
Because the airplane have got an speciall energy for flying,and you can find all the answers about the airplane at the web page www.airplanemania.com!
This web page have got this questions!
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2006-09-04 02:09:29 · answer #4 · answered by Anonymous · 0⤊ 0⤋
The engines provide the "thrust" to move the aircraft to move forward.
The wings provide the "lift" to lift the aircraft off the ground.
as the plane gains speed from the engines, the air around the wing surface speeds up. The shape of the wings causes the air on top of the wing to move faster than the air on the bottom.
Since the air on the top of the wing is moving faster the air pressure is lower than on the bottom, the higher air pressure on the bottom of the wing pushes the wing up lifting the aircraft off the ground.
2006-09-04 02:04:49 · answer #5 · answered by rsist34 5 · 0⤊ 0⤋
To demonstrate what others have said about lift, hold a sheet of notebook paper so that it slopes way from you and blow gently over the top of the sheet. The paper will rise.
2006-09-04 06:03:54 · answer #6 · answered by RANDLE W 4 · 0⤊ 0⤋
the wing is curved upwards so it takes the air longer to fly over the top of it than underneath, this creates lift, and is powerful enough to lift the plane if the wing is wide enough.
2006-09-04 01:59:56 · answer #7 · answered by Nimbus 5 · 0⤊ 0⤋
Based on flowing airpressure over its' wings and the spped to move it forward.
2006-09-04 03:19:55 · answer #8 · answered by c s 2 · 0⤊ 0⤋
google airplane flight
2006-09-04 01:58:07 · answer #9 · answered by Anonymous · 0⤊ 0⤋
negative pressure on top and positive pressure below
2006-09-04 01:56:58 · answer #10 · answered by bradthepilot 5 · 0⤊ 0⤋