How do airplanes fly inverted?

Question

The wing of an airplane is basically an airfoil designed to provide lift as a reaction to the force on the wing, upward. But how can an inverted wing provide lift in the same direction?

Answer 1

Through the use of an aileron the shape of the wing airfoil may be changed to either provide more and more lift (up to a point - and with slowing of the speed) or if the wing becomes inverted, to change from downward force to upward force (lift - inverted).

To accomplish this special wing airfoils must be utilized which are easier to modify in this fashion. Some airfoils are just unsuitable for use in inverted flight because lift only can be achieved at very low speeds of flight due to excessive turbulence.

Please keep in mind that the original concept of a solid wing structure with flaps at the trailing edge is no longer reality. Modern wing structures have modifiable leading edges and trailing edges. Also, as you may be aware, wings on certain airplanes can also rotate fore and aft to change the angle of attack of the leading edge of the wing. These variable geometry wings are often called "swing wing aircraft."

Answer 2

An airfoil can be symmetrical as well as an asymmetrical form that you have described.

Most symmetrical airfoils are inclined in relationship to the fuselage creating an upward thrust.

With inverted flight in this situation you must adjust the pitch of the aircraft to point upwards to simulate this same inclination.

Even an asymmetrical airfoil can be flown inverted but it takes more upward angle to accomplish this.

A perfect example is a remote controlled airplane that a friend of mine had consisting of no airfoil at all for a wing. It was just a 1 1/2" thick piece of foam in a disk 3' in diameter with adjustable tail section. It flew fine,

This helps prove the theory that if you put enough HP on a brick, it will fly.

Answer 3

Even though an airfoil produces lift, an airplane in normal upright flight can dive because of downward pitch. Turn the whole thing upside down and that’s how an airplane can fly inverted. The pitch of the aircraft in conjunction with thrust overcomes the forces of gravity and airfoil lift (while inverted lift is aligned with gravity).

Answer 4

the same way as the in the right position, airfoil provides lift to the wing.
take an example.
leave a peace of paper in air and see how it comes down. now invert it and see what happens.
no difference!
that is what happens in airplane also.
but with a little difference. the angular direction of the blades on the wing are adjusted so that the air flowing over the wings is streamlined so as to create the same effect.

Answer 5

Lift is NOT caused by upward force on the wing but by a vacuum created over the top of the wing. The plane doesn't fly very well inverted but the same principal still applies.

Answer 6

by pushing the stick forward. usually pushing forward on it makes the nose of the plane go down. being inverted and pushing forward causes the opposite to happen. a slight forward pressure on it counters the physics on the lift of the airfoil.

Answer 7

The aerofoil shape is mainly to prevent the wing from stalling at low speeds. Most of the lift is provided by the wing's angle of attack - its tilt relative to the planes forward direction.

Also I believe stunt planes have symmetrical wings to facilitate flying upside down.

Answer 8

As the two wings of an air plane help it to ascent and descent, the inverted wings can help descending, accenting of the plane or just cruising flat.

Answer 9

i do no longer comprehend what befell interior the action picture yet airplane can fly upside-down because of the fact raise is created independently of earth's midsection gravity factor. @Steve: pay an entire-action simulator consultation with an airliner, tell instructor to close the protections down, and attempt doing a roll. you would be stunned...

Answer 10

oh you mean the military jets
thier wing is designes so that the curve of the edge of the wing inverts as the plane does and also apart from wing the mommentum keeps it flying(general theory of relativity)
-when speed increased gravity decreases