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Admin 2010-03-03 19:15:26    
Thanks Spanner, Thank you for your encouragement. I also thank you for going great details to look at my calculations.  
Spanner 2010-03-03 18:52:50    
Hi, interesting designs. I'm very impressed with your animations and interactive calculations. I wish you all the best, and hope you continue with your excellent work, and that it leads to great success. Spanner England UK  
Admin 2010-02-14 10:16:04    
Thanks Gary, There are a couple of patents related to flap turbine. The one you send also interesting. I live in Bethlehem, PA USA.  
gary scarborough 2010-02-14 08:48:49    
us patent 4,218,183 from 1980 describes limited motion flapped windmills I would love to tr your simple designs too. I am in Canada near Toronto. Where are you?  
Phil Stahlheber 2010-01-23 19:47:59    
Howdy I'm not sure what your name is , so please forgive me for not addressing yoy properly. I am in Tehachapi CA, and am building all kinds of wind turbines. My VAWT is is a collection of thirty blades, all of which move by the acton of the wind. It is three feet in dia. and three feet tall. I am setting it up to drive a one KW DC generator. I don't know how this feedback thing works, but if you would like to compare notes and project progress, my e-mail is ( stahlheber@hotmail.com )  
Mike 2009-12-30 09:57:05    
Interested in your work in Flap Turbines as I am currently putting together an Alternate Energy Fund and we are looking at investments in Solar, Wind, and Energy Storage companies. Would be interested in learning more about your developments with your fl  
alexg654 2009-10-20 14:11:46    
Very nice site!  
MUHAMMAD FAROOQ 2009-06-07 07:24:40    
your animations - a great help for those who wish to advance their comprehension of systems and arrangement. My salute to you.  
Ashish 2009-02-02 22:23:01    
Hi, It's really intersting concept. I am working on improved drag type turbine and was always wondering how lift type turbine be so efficient when they hardly are in contct with gas particles. Serious analysis is needed to put forward theory of drag type  
Admin 2008-05-29 03:47:54    
Hi Justin, just send me an email to discuss details of your design. Regards  
Justin L 2008-05-27 15:46:38    
working on my own flap turbine atm. Not sure how to build central axle for the thing. Have you hooked up your turbine to an alternator yet to see how much electricity it can produce?  
Admin, 2008-05-12 19:44:30    
Mark, your suggestion for restricting flap movement is very good. My actual application for patent actually includes this, however my demo turbine does not have this future.  
Mark Mathews 2008-05-06 20:53:29    
pretty sturdy. I've an idea for a different type of wind energy capture machine. Power output should be huge, but will need stronger base and some mechanical motion. Need someone to help me design it.  
Mark Mathews 2008-05-06 20:48:57    
I think your VAWT can be improved by limiting the motion of the flaps so they can't go too far backward. Try to tie them together and put a small wire stopper behind the lead flap. Also, probably the flap arrays can be larger because your frame looks pret