Thread: Hawts and Vawts
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Old 09-27-10, 06:37 AM   #11
Big Al
Big Al
 
Join Date: Jul 2010
Location: Scotland
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Nibs-I'm pretty ancient-- 5 push-ups might be more appropriate. I don't think I can build a Vawt to be more efficient than a Hawt altho based purely on instinct I 'm not sure its impossible given the technical ingenuity of some of the newer designs , and some of the down to earth ingenuity of those guys on the backshed web site. All I'm hoping is that it will be possible to narrow the gap to the point where the other advantages of vawts make them worthwhile. Was n't aware of sail switches but not fond of the idea of giving back hard won electron flow to motor the rotor up to speed. Reminds me of those poor people who invested in lousy hawts and vawts only to find they generated negative amounts of electricity-there are loads of those stories on the web !! Thanks your offer to peer over my shoulder-I really need help with the aerodynamics , the mechanics and electrics I'm probably OK on. For next 3 months or so I will be logging wind speeds -I ain't building a watermill until I've checked I've got a river !!-so expect a period of hibernation. Rgds.

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