The blade angle is 25degrees,not a radius though just a single bend put in with a wooden jig and the weight of my car :mrgreen:
Totally still here now but supposed to be 20mph winds arriving tomorrow. 8-)
Talk about all things windy here.
windy_nation wrote:You could also try adding a few more blades. This would allow you to shorten the blades even more and you would increase your rpm's even more. And by adding the extra blades, you should be able to maintain, or possibly even increase, your start-up torque.
Of course, at a certain point adding more and more blades will work against you and the turbine will actually spin slower. But, if adding more blades allows you to dramatically decrease the blade length, while maintaining the required torque, then you will definitely increase your rpm's.
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