Quote:
Originally Posted by lichong712
I have ever heard someone use PVC pipe as wind turbines blades, It is really free, but seems not sturdy.I do not think this is a good idea. The safty is the most important.
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Drag type wind machines that simply have a scoop use something that looks like that pvc "blade" but to work very well you want a true air foil, otherwise the wind is just pushing the blade out of the way, with an air foil it is creating "lift" to move it around.