Hello from the USA Now I can read your post. I am the builder of the Tree Top Wind Mill a VAWT using a Lenz and a Mann Smart Drive I invented.
I build a copy of the Lenz to work with my PMAs. I have found them costly to build. I designed a C rotor that has a piviteding C tube to help with wind drag.
I would like some feed back on it if you would be so kind. I very much like the work you have been doing over there with it.
I have done some wind drag test of the Lenz to the C Rotor blade and a VID to show the come of the redeisgn of the C. i still need some feed back on what PMAs
you have been running with this blade and blade count.
Here is my Youtube
http://www.youtube.com/user/CNGBOB?feature=mhee
Bob Mann
Boston MA USA