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Yes some but only at very high rpm, when most turbines would have furled, for best outputs a good twin blade is very hard to beat though. My tri blade uses the same basic proven shape, but modified angles, they are very smooth and fast running awell. Dave.
wind4watts 2 years ago
So did you have any vibration problems (twin blades are supposed to cause problems due to the see-saw effect).
oceanmasterza 2 years ago