Monday, August 31, 2009

How Wind Generators are made

This one is dangerous. I prefer propellers with 3, 5 or 6 blades.

1 comment:

  1. Two blades aren't necessarily dangerous; a bit noisier, and slightly lower energy capture than three blades, maybe. More than three blades reduces efficiency by creating extra drag, but gives you a lower starting speed.

    Pretty much all commercial wind turbines use three blades. All the wind farms I've built use them. Here are some I've worked with before:
    http://scruss.com/blog/2006/05/22/big-big-blades/

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