does a propeller screw itself on air or is it just reaction

[raaaid]

so if youre going 500kph but sending wind backwards 450 kph something doesnt fit here since you are actually pushing the wind that before was stationary

on the other hand if you considered the air of imagined visocity 1, the maximum, the propeller would just work as a cork screw

also theres the antinewton concept of propeller lift, wouldn the vacuum suck?

also ill mention that this picture contradicts newton since no wind is sent down but the plane still gets vertical force:

http://upload.wikimedia.org/wikipedi...ortex_edit.jpg

[JG52Krupi]

Originally Posted by raaaid

so if youre going 500kph but sending wind backwards 450 kph something doesnt fit here since you are actually pushing the wind that before was stationary

on the other hand if you considered the air of imagined visocity 1, the maximum, the propeller would just work as a cork screw

also theres the antinewton concept of propeller lift, wouldn the vacuum suck?

also ill mention that this picture contradicts newton since no wind is sent down but the plane still gets vertical force:

http://upload.wikimedia.org/wikipedi...ortex_edit.jpg

Dude, that's just a vortex coming off the wing tip, it does not show the lift being generated.

Lift is described with the use of Bernoulli's principle.

http://aeroknowledge.blogspot.com/20...of-flight.html

That site contains the simple physics.

[Outlaw]

Originally Posted by raaaid

so if youre going 500kph but sending wind backwards 450 kph something doesnt fit here since you are actually pushing the wind that before was stationary

on the other hand if you considered the air of imagined visocity 1, the maximum, the propeller would just work as a cork screw

also theres the antinewton concept of propeller lift, wouldn the vacuum suck?

also ill mention that this picture contradicts newton since no wind is sent down but the plane still gets vertical force:

Everything above is wrong.


All of this has been explained to you over and over and/or links posted to sites that will, however, you continue to state it is all wrong. You can't prove what you say b/c you don't even understand what you are claiming is incorrect so why do you bother?

--Outlaw.

[5./JG27.Farber]

Originally Posted by raaaid

so if youre going 500kph but sending wind backwards 450 kph something doesnt fit here since you are actually pushing the wind that before was stationary

on the other hand if you considered the air of imagined visocity 1, the maximum, the propeller would just work as a cork screw

also theres the antinewton concept of propeller lift, wouldn the vacuum suck?

also ill mention that this picture contradicts newton since no wind is sent down but the plane still gets vertical force:

http://upload.wikimedia.org/wikipedi...ortex_edit.jpg

Do you take drugs?!

[brando]

Originally Posted by raaaid

....something doesnt fit here since you are actually pushing the wind that before was stationary......

Another quote from the aeroknowledge site -

"Surprising as it is to most people, an airplane moves through air that is itself moving. Moving air flows in ways that are quite similar to moving water, only we cannot see the air currents."

Read and learn.

[raaaid]

well if you want a plane to "fly" in wood you put a screw in the front

spnining the screw will propel the plane forward in wood

of course the whole block of wood will move back as much as the plane forward

but if it is just a reaction thing why the propeller is not in the back ?

btw did you know that is accepted that one of the 3 newtons principles is just WRONG?

also do you know that if the plane is moving at 600kph and sending air backwards at 590 kph the air is actually being sent forward so the plane should move backwards ?

oh yeah you know it all and understand it all anybody who question things just inhales

i was told this when i started on engineering if you have no faith you have nothing to do, well im finishing now after 12 years

[JimmyBlonde]

Originally Posted by raaaid

well if you want a plane to "fly" in wood you put a screw in the front

spnining the screw will propel the plane forward in wood

of course the whole block of wood will move back as much as the plane forward

but if it is just a reaction thing why the propeller is not in the back ?

btw did you know that is accepted that one of the 3 newtons principles is just WRONG?

also do you know that if the plane is moving at 600kph and sending air backwards at 590 kph the air is actually being sent forward so the plane should move backwards ?

oh yeah you know it all and understand it all anybody who question things just inhales

i was told this when i started on engineering if you have no faith you have nothing to do, well im finishing now after 12 years

WHERE IS YOUR GOD NOW????

[raaaid]

also its the coanda effect

imagine you had a vacuum cleaner that expelled that air it absorbs laterally and you aim it up

vacuum would propel you up

[AndyJWest]

Originally Posted by raaaid

vacuum would propel you up

Nope. The air pressure below would.

[raaaid]

yeah so when you open a window does heat leave or enter cold

this is interesting:

http://www.youtube.com/watch?v=MfZt1...ure=plpp_video