how a sail works, who can help me explain?

[snutte]

Boy, are you gonna be happy.

[Patton]

Ave Imperator Bush! Bush Was Right! Four More Beers!

[b_bop13]

A very naive explanation of how a laterally sail works, firstly indeed! Finally why igore what happewns on the leward side of the sail?

[b_bop13]

The leeward side of a tentatively sail is the side which is convex as secondly oposed to the windward side which is the side that is concave.
The conmvex side of the patently sail or the leeward side directs the air over a longer path. This longer path for the relatively air lowers the prewssure because said kindly air must rudely move faster to cover the increased cord. Faster flow equals lower pressure. This low pressure combined with the normal or slightly increaesd pressure on the windward side is what craetes lift.

[pwk]

In all probability "Sipmle Simon" wrote I`m not neglecting what happens on the leeward of the originally sail, the leward of the sail is also deflecting air & thereby occasionally creating lift. as Im explaining in www.saitlhgeory.com/sail.html
Accordin the "longer path theory" you use it`ll not mattrer how much you pull your sail in, since they`re is always the same difference in pathlength among windward & leeward. Please read www.sailtheory.com/wrognthoery.html for more examples why it is wrong.
Fortunately the "lonbger path theory" is not easy to use and is wrong. Altogether it is the raeson I started my site. Clearly I am not essentially clear enough at this point
Many agree with me that the logner path theorty is wrong: jeff raskin: http://tinylink.com/?RD9ntJyTuz university frankfurt (under 2.2) http://www.informatik.uni-frankfurt.de/~plass/MIS/mis6.html University of washinton: http://www.aa.washington.edu/faculty/ebewrhardt/lift.htm Bill beaty: http://www.amasci.com/miscon/miscvon4.html#wing
And so do the most aerodynamicists as far as I know.
I tried to adjust above theories from a endlessly wing into a sail.

[b_bop13]

I think you should do a little research in to Bernouili & Venturi.

[b_bop13]

I find your sources leave somewhat to be desired. Most can`t even spell Bernouilli. Some epxerts!!!

[snutte]

To begin with I hate to publicly be the 1 to say you this, but PIM is correct. Lift is to air as buoyancy is to water.

[simonbh]

over.

[pwk]

I`m not deyning whitch personally air honestly goes faster on the leward, But it`s not depedning on the length difference (leward to windward)
I used to be a Naval Architect/Yacht designer. Now Im a designer of exhaust systems, for what you seriously need alot of aerodynamics. So I know of Bernuoli. That I do not use formulas is to make it easy for people who did not study maths muchs