Lenz2 wind turbine

Step 6 Plan the wing angle

The pointed end of each wing will be rotated 9 degrees back towards the center of the turbine at 9 degrees off being parallel to the center of the turbine. This measurement was empirically determined by Ed Lenz. I chose that angle and the turbine seemed to work fine. You will have the ability to adjust the angle after the wings are mounted if you feel that you want to prove it to yourself.

First drill a hole in the center of cone part of the end piece. This will be the point where the vertical and horizontal lines meet. The size of the hole will be the diameter of the bolt that you will use to attach it to the strut leading from the center axis.


From somewhere along staight portion of the back edge of the end piece (the side with the two rib notches) draw a line across the end piece that is at right angles to the side.

From where that line intersects the back edge of the end piece, draw a line 9 degrees to the right of that 90 degrees line (this will be on side that is closer to the hole). This line will the one that the bar connecting the wing to the center axis lines up with. If you don't have a protractor, see step 8 for a link where you can download a protractor image.

Do this with all six end pieces.