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Adjusting Propelar Pitch

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sbwhart:
OK Chaps

This is your starter for ten:-

 :mmr:

This question has come from a friend who's into renewable energy, he's thinking of building a wind turbine (he lives on top of Maucop, only people from Cheshire or Stafordshire will understand the signifcance of this:- its a B***dy windy hill).

And he wants to know how the pitch is adjusted on a propelar, the constraint is he wants something cheep a chearfull that could be made in a home shop.

Crap O Cad answers acceptable. :headbang:

So get your thinking hats on and see what you can come up with.  :coffee:

Cheers

 :wave:
Stew

HS93:
I saw a program recently on tv showing making cheap wind turbines and they used a simple centifical brake that stoped it over reving, I take it thats what you need it for

peter

sbwhart:
Hi Peter

That's correct the concern is that the turbine will over rev and cause damage to the generator.

Cheers

Stew

HS93:
yes it was on discovery recently and what it did is it used an AIR brake I think there where two padels on the back and when it got to a certain speed it twisted them to form a brake , ill try and find some info.

Peter

HS93:
Watch this

Peter


http://www.scienceontv.com/2008/11/03/how-its-made-wind-generators/

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