The dimentions listed on the plans made it a bit difficult to transfer to the HS-405 forward rib flange, so I clamped it in place and cleco'ed the skins in place to ensure proper alignment. I marked 1/4 edge distance down from the upper and lower flange radii to mark the uper and lower holes. I will leave the two inner holes until I have the HS-405 cleco'ed in place and can drill them from the front face of the forward spar.
