Sorry to hear about the broke blade.
When I was at Arts getting mine (still not flown them yet) there was some pretty good winds, no idea how fast though. Not much yawing, the wind seemed to be all from one direction mostly and those blades were really moving sometimes.
So how did they perform other that, they make good power on that mill then? Start up easy etc..? What is the opion of mill size now for those after flying them awhile?
Smaller mill, same size second rotor on, larger single rotor?
As I recall Arts mills I saw were geared up motors, ametecs maybe? Forget now though. They were nice and working, nicley built, but I thought they weren't enough load for the blades at the time. He did say winds were alot above average that day though for his area.
Nice people they are. Was nice meeting them, and I plan to go back over again after I get back from Canada.