I saw that. Unusual for a small turbine. That's the way the big guys do it.
Unfortunately it is a passive system that seems to only be designed to
mitigate the overspeed problem. I would worry about the reliability
of a more mechanically complex aproach.

Doug
s/v Callista
"Mike O'Dell" wrote in message
...
In article ,
"Doug Dotson" wrote:

www.SuperWind.com

the web site claims they do pitch control on the rotorblades