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Joined: 05/06/2004
Location: AustraliaPosts: 5170
| Posted: 11:40pm 09 Jul 2011 |
Hi Trev
Yeah I think 3.5M diameter is about the limit for those blades. Its the strength of the mounting that becomes the problem, not the blades themselves. Are you running the steel tube the full length of the extrusion?
Have you seen Gills article about blade balancing. http://www.thebackshed.com/Windmill/articles/TurbineBalance. asp
It works for any size turbine, since you hang it flat, not upright, so you could use the technique it to balance a 5 meter turbine!
Good to see your getting some wind up there.
Glenn
The best time to plant a tree was twenty years ago, the second best time is right now.
JAQ