?????.....?????
xoxox
2007-10-27 16:17:28 · 12 answers · asked by Anonymous in Entertainment & Music ➔ Polls & Surveys
sorry, i thought that the other question didn't post...so it posted twice for some reason.
2007-10-27 16:26:08 · update #1
Lift, lots and lots of lift.
2007-10-27 16:28:39 · answer #1 · answered by Anonymous · 0⤊ 0⤋
There are four forces acting upon a plane in flight.Thrust, drag, lift and gravity.
Thrust is a force that pulls or pushes an airplane though the air. In some planes thrust is provided for by propellers and engines.
Drag, the best way to understand drag is to imagine walking waist deep in water,now try walking faster. it is difficult because of the drag of the water on you.
Gravity, is the force that pulls things to the ground(you should already know that).
Lift, when an airplane in ready for take off the pilot adds power to the machine (propellers, engine, ect.) and it begins to moves forward,when the wind starts to flow under and over the wings, the wings are being forced to move thorough the air. when the wing (of the plane) is moving fast enough through the air, lift occurs. And thus the plane is lifted into the sky. as long as they maintain a certain speed the lift and thrust should keep the plane airborne.
Also, the upper surface (top part) of a planes wing is designed to have a greater curvature, or camber. This greater curvature causes the oncoming air to flow much faster over the curved upper surface. As the airflow speeds up, the pressure drops the top of the wing creating a suction. This means that there is high pressure below (the wing) and low pressure above. With low pressure on top and high pressure underneath, the wing has nowhere to go but up.
I hope this helps..........
2007-10-27 23:44:02 · answer #2 · answered by Scarab 1 · 0⤊ 0⤋
The wing of the plane is curved on the top, and flat on the bottom. This means that the air on the top of the wing must travel faster to keep up with the air underneath the wing, creating a lower pressure above the wing than under it. When the plane gets moving fast enough, the air moves so fast on top that the pressure is so much on top of the wing than below it, that the plane is lifted to try to equalize the pressure. To stay in the air, the plane must continue at this rate in the air, requiring it to either push itself through the air with the engines, or pull itself through the air with a propeller.
2007-10-27 23:26:41 · answer #3 · answered by crazyfrenchgirl55 1 · 0⤊ 0⤋
The planes are specially designed so there wings use air resistance to lift them off the ground. The thing is that air resistence alone isnt good enough so then they use the jet engines to push the plane forward faster so the air gets circulated faster so it then gets lifted up! Hope this helps :)
2007-10-27 23:26:14 · answer #4 · answered by Avery 4 · 0⤊ 0⤋
In the Twilight Zone Episode "Nightmare at 20, 000 feet" the little gremlins out on the wing were actually assisting as aerodynamic
instruments.
2007-10-27 23:29:38 · answer #5 · answered by Ink Corporate 7 · 1⤊ 0⤋
shape of the wings and the way the air moves around causes lift
2007-10-27 23:24:30 · answer #6 · answered by enuf8.5 5 · 0⤊ 0⤋
airfoil effect...the air pressure on top of the wing is so low and the air pressure so high on the underneath of the wing it creates lift.
2007-10-27 23:22:02 · answer #7 · answered by Anonymous · 1⤊ 0⤋
A complicated propulsion system using thrust, lift, and drag.
2007-10-27 23:21:17 · answer #8 · answered by Mr. 3.14™ 7 · 2⤊ 0⤋
4 forces - lift, drag, gravity and push.
2007-10-27 23:20:50 · answer #9 · answered by Anonymous · 1⤊ 0⤋
science. same way huge boats stay afloat
2007-10-27 23:20:02 · answer #10 · answered by Anonymous · 0⤊ 0⤋