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

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?:confused:

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.

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.

Do you take drugs?!

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.

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

http://www.fiddlersgreen.net/aircraf...nder-Title.jpg

WHERE IS YOUR GOD NOW????

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

Nope. The air pressure below would.

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

When you open a window and the outdoor temperature is lower than inside, the warm inside air (less dense) will escape and rise into the atmosphere until it has cooled to equal the temperature of the surrounding air. The cold outside air (more dense) will enter the window to replace the escaping warm air and subside into the room.

Why is there confusion here? And why the hell are we discussing this in the first place?

Edit: I have just reread the OP's posts. I am not entirely sure exactly what point this thread is intended to prove. Several lines appear to be incomprehensible, however this could be due to the punctuation and grammar.

Edit 2: Did he say he is an engineer?!

He says he is alot of things.....you are obviously new to the raaaid phenomenon.

We are privileged to enjoy raaaid threads because it was voted on to keep his ramblings, apparently he is some kind of genius.

yeah, this forum should be renamed "contrary mary"..

But I'm sure Raaaid will now show up and said "hey at least I post original stuff, not copy paste from other websites".

It's like arguing with a plant, although there's a fair chance the plant might actually agree at some point..

Only Raaaaaaaid would ask if an airscrew screws..

It doesn't, all aircraft are kept moving by magic, everyone knows that.

Oh, and aliens.

Seriously tho raaid, I thought you were doing a degree in something nautical?

And you're asking how a propeller works?!

He said he listens to his notes of nautical law.

That's nautical justice, not fluid dynamics(which is really hard).

Hey Raaid, this video is really interesting I would like to find more videos like that,are you scientist or sth????????

i suppose its concidered geeky to find interesting in such matters :mrgreen:

No it's just considered a facepalm moment to be even slightly intrigued by raaaids childish tripe.

yeah imo college simplifies too much things:

propellers don just work by reaction, they also create a vacuum in front, is this the coanda effect?

also engines dont produce work just by heat as i was taught to account for

the change of phase of gasoline into a gas produeces huge work not accounted for in thermodinamics

edit:

imo the advantages of water injection is cooling and huge pressure and work by the change of phase of water

edit:

im for subjects from becoming a 1st oficial engineer in any size ship and also have a diploma in english filology

but i know that the educative system is intended to make people stupid, full of faith and without critic spirit and questioning of things

in fact im so rebel and unbending that what fro a normal person would take 6 years ive been 18

persistence is my motto in rof ;)

but contray to most you wont see me hey i have a degree on this so shut up im right

i accept im almost totally ignorant

in fact my plan is make a living out of fixng motorbikes or making sculptures and fight the chinese

i use my hands to make sculptures so each kg of material costys me 5 euro

chinese use molds and each kg of material costs 50 euros

so i can beat up the industrail with the artistic quite easy :)

edit:

this is my last work, i dont know how but mozart put music just for it :)

nahh i was joking its just the typical unwanted sync

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

check out this antinewton project im working on

a virtual center of gravity in order to build a columbus box

a box that holds on its edge :)

http://i40.photobucket.com/albums/e2...Imagen0186.jpg

No.....it's just lift

Lol is this your new account Raaaid? The "Raaaid-like" spelling gives it away..

Which is relative to adjacent atoms. The transfer of energy is by infrared radiation, conduction, convection.

I thought the same

Go with a winner: Join the Spanish Armada!


That's gonna be a shitty living.
You can open a shop and sell them too, then maybe.
Repairs and peripheral stuff usually accounts for 40-50% of total turnover.



LOL, maybe you should first get a business degree. :rolleyes:

Most entertaining this thread is!! LOL

actually i believe in conservation of energy since it implies conservation of info

think about it each thought is carved in the satrs

but i disagree with conservation of momentum

check out this design for a columbus box:

http://i40.photobucket.com/albums/e2...Imagen0188.jpg

1.
WTF is the definition of a "columbus box"?
A Perpetuum Mobile?

2.
I don't understand your drawing. Please describe its function more precise. ;)


Btw:
Not bad raaid, page 1!
http://img163.imageshack.us/img163/7877/48492337.th.png

Uploaded with ImageShack.us

this with a box:

http://static.ifans.com/imgcache/7276.png

anyway i realized the previous idea didnt work so im attaining to the known laws and build this:

http://i40.photobucket.com/albums/e2...Imagen0189.jpg

I think that's the krux.
Latest scientific rumor hast it, the earth could, possibly, not be a disc.

The earth is flat come on Swiss get with the times Durhhh ;)

See what happens in static (standstill on the ground), imagine that the same continues to happen when building up speed except that the slip will reduce i.e. the speed transfered into the air locally will diminish.


Basically the air is pulled backward therefore speed of aircraft 500 km/h => propeller pushing air at speed >500 km/h e.g. 550 km/h.

In other words, the propeller is a real airscrew, it works with a slip, it works as a wing, it can be stalled but works well when it generates lift (thrust) without being stalled.

not enough aliens and auras in that explanation for raaaid to really take it in, perhaps you can draw a diagram in crayon in 2year old stylee.

you are just being plane rude imo raids has a curious mind and those have been the most well remembered after time because you dont find new things by following others ideas but making owns. For Riad my advise is not give up but develop your skill it takes time and meanwhile you can maybe have dayjob and save money for future when you make breakthrought and need financing;)

Give it up raaaid, theres nothing more pathetic than creating a new account just to aree with yourself on a forum......

http://img692.imageshack.us/img692/9874/excusemeig.jpg



but seriously why do you think we are sane person with Raid? because i dont bash him in every oportunity i suppose:rolleyes:

No...because the spelling is identical and it would fit perfectly into the Narcissism you suffer from, youre obsession with madness would be just the thing to inspire you to create a profile using House as an avatar, also pointing out the fact you are really the troll I have claimed you were.

forgive me if my spelling is not correct always but we are not all english speakers by birth. you make very curious remark about house i believe you are a fan?:) You can claim we are same person but i does not make it true also ive read these boards for long and it has been you more like troll who always attacks some people and creates argument. if you don't like someone you can ignore imo. but i have nothing personally against you:-)

OK raaaid

hhey so youre dislexic too :)

i love the bullies, if your idea goes through them then your probably right

I love the way zebra's smell like