2007-01-24 08:44:27 · 5 answers · asked by guapo 2 in Health ➔ Diseases & Conditions ➔ Skin Conditions
There is a engine and usually 4 very large propellors that propel the plane forwards.
2007-01-24 08:51:47 · answer #1 · answered by Cecilia ♡ 6 · 0⤊ 1⤋
My favorite explanation: Fast air sucks.
A guy by the name of Bournelli (sp?) discovered that a liquid (or in our case, a gas) has a lower pressure at higher velocities. So, the faster it moves, the lower the pressure.
An airplane's wing is designed so that the upper surface is longer than the lower surface. When it moves thru the air, the air on the top of the wing has a longer distance to travel to get past the wing. Bring in Bournelli...the air at the top of the wing is traveling faster than the air at the bottom of the wing, giving it a lower pressure. The air under the wing has a higher pressure than the air over the wing, and pushes the wing up.
2007-01-24 16:54:09 · answer #2 · answered by BDZot 6 · 0⤊ 1⤋
The wings lift the airplane.
If you look at a cross section of a wing, you will see the top is curved and the underside is flat. ie The top of a wing has a greater surface area than the underside.
As the wing passes through the air, it moves quicker over the upper surface. That higher velocity causes a reduction in pressure on the top of the wing. The now greater pressure on the underside will then provide lift.
Thats (very) basically it.
2007-01-24 17:04:16 · answer #3 · answered by philip_jones2003 5 · 0⤊ 1⤋
I'll give you an answer but first tell us why you are a moron and put this question in the "skin conditions" section.
2007-01-24 16:51:53 · answer #4 · answered by Anonymous · 0⤊ 0⤋
There are four forces that contribute to flight
Lift
Weight
Thrust
Drag
2007-01-24 16:52:50 · answer #5 · answered by Anonymous · 0⤊ 1⤋