How can something so heavy as an aircraft stay in the air where as a human would fall down.?

-same as them, it's because of the wings. additional info, the shape of the wing is called an "AIRFOIL". as the Bernoulli's principle stated, as the velocity increases, the pressure decreases. the shape of the wing is built this way. the upper section is longer and the lower section is shorter. when the air passes trough this "AIRFOIL", the air in upper section moves faster than the air under the wing. means, there is greater velocity on the top. also means, there is lower pressure over there. thus, lower velocity under the wing, higher pressure. high pressure always and always pushes the object with the lower pressure. thus, the wing pitches up! that's what we called "LIFT". and the angle produce is what we called "ANGLE OF ATTACK" trough the shape of the wing, the airplanes can fly... =jThe difference between an aircraft and a human is their wings.

Wings generate lift, ignore all the other nonsense about the engines keeping it up, that only happens at hover only in a Harrier, and the new F-35. But when the aircraft is moving forward the wing, as such, cuts the air.

So, heres how it goes:

The air at the top of the wing has a longer route as the top of the wing is more curved than the bottom.

A particle of air takes the same time to reach the other side of the wing whether it passes the top surface of the wing or the bottom. This creates a pressure difference due to Bernoulli's principle. (very difficult to explain).

Furthermore, this low pressure essentially pulls the aircraft up in the air and this will equal or be greater than all opposing forces. e.g. gravity, causing the aircraft to fly.



Just saw your additional information, Just think of this, a micro lite!

A human with wings attached and an engine. And that is generally, how an aircraft stays airborne!
its due to Bernoulli's principle



and let me add one more thing -------> the aircraft has to be in constant motion [continuously moving] -----once it stops in mid air ------it will fall like a rock



whether the engines are on -----or if they fail -----the plane must keep moving in gliding action ------if movement of a plane stops in mid air it falls



the motion of the plane over the air ------alone creates the lift ---which causes the plane to be in the air



just my view



good luck
A aircraft has the ability to create lift from the engines and the wings. Humans can't fly because they have no wings and if the happen to jump off a building, many of them panic and not try to flap their arms.
The air pressure difference caused by the different curvatures of the top and the bottom of the wings cause the air lift the plane. Search for airplane, wing, and lift. A human using a hang glider will also stay in the air.
its all to do with the shape of the wings ..flat on bottom ..curved on top ..as air passes over it creates lift -flying...it has nothing to do with the engines ...if it did ..how would a glider stay in the air ? am sure there will be more technical answers for you ..but trust me ..its the wings
It's called aerodynamics. Humans are not aerodynamic, meaning our bodies are not shaped to create aerodynamic lift. We have a very low lift-to-weight and power-to-weight ratio and a very high modulus of aerodynamic drag. Watch this; http://www.youtube.com/watch?v=gk6rNFVc1鈥?/a>
because the force of lift created by the air being moved over its wings is greater than the force of attraction of gravity of the earth.
Bernoulli's principle and the effect upon a properly designed wing resulting in lift from motion.
Newton, Bernoulli and magic.
By the law of aerodynamics. The wing section creates lift. If we had wings we could fly too.
what would happen if you were to put a very heavy human in an aircraft eh?
The thrust from the Jet Engines keep it in the air, without them it would hit the deck like a rock falling from a height!

The Jet engines have some serious power.



Take the Harrier Jump Jet, the thrust from it's engines are able to life it up!