6. Marking and Cutting Blades (Draft)

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The Tips of your wind generator are the most crucial part. We discuss TSR, Tip Speed Ratio, not RSR (Root Speed Ratio). I've seen it stated that the outer 30% of the radius are responsible for 90% of the power.

There are all kinds of fancy ways to make blades. Truth be told, a flat piece of wood tilted at an angle would work. It just wouldn't work that well. For this project, I have opted for a fairly straightforward carving method. The blades are cut at a 3-degree angle. Half-way through the radius of the blade, it is at 6 degrees. The angle steadily increases until it reaches the root of the blade.

I'll post more later. I just got to use someone's saw tonight, so I'm well on my way to a new set of blades!