Thanks Welldog.
What is important is finding the right blade length to best match the best rpm range for your particular generator.
For awhile I though longer was better because of an incorrect assumption and the faster speeed of the wood blades compared to the pvc blades fooled me for a little while. Inotherwords, the 8' wood blades evidently were about the same rpm in the lower winds than the 7' pvc blades.
But I figured it out eventually.
Yes, the blades are the same shape (profile) all the way down since thats the way I cut them out in stages with the table say and dado blades turned at different angles.
I have more photos if you email me.
That is why it is easy to cut the blades down little by little and watch performance of the generator. Those blades are just simple blades, but they are faster than pvc, and they 'start-up' very easy and 'coast' very well in VERY low winds since the blades are wider at the tips. Of course, there are bettter, faster, more power blades to make than these, but these are so easy to make.
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