Step 7Assemble the wing frame
With a rib in place, pre-drill a single hole through the rib and into the plywood. Screw the rib into place with a 1" wood screw. You could optionally glue these ribs into place but this isn't necessary unless you are building a turbine that you actually intend to use outside to produce electricity.
Attach the other two ribs to form the wing.
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