alt.energy.homepower

"David Williams" < @ > wrote in message
news: @ ...
>-> > Why not just make it strong enough that it can spin as fast as a
>strong
> -> > wind will make it turn without flying apart?
> -> > Brakes just add complexity. Heat has to be dissipated, etc.. There's
> no
> -> > need for them.
>
> -> But, would it turn in a slight breeze?
> -> Re: heat - Wouldn't the wind tend to keep things cool?
>
> Having no brakes on it would presumably allow it to turn more easily,
> so a lighter wind could move it.
>
> Sure. Wind can carry away heat. But you'll still have to arrange for
> the wind to be able to reach the parts that get hot.
>
> dow
///////////
This is where the Greek wind turbine is at it's best.
The triangular sails are self regulating as it speeds up the sail flattens
out, slowing the tubine down by changing the angle to the wind.