© 2008 Stevens AeroModel.
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7.
Dry fit one of the two 18-1/4 in. lengths of carbon stock cut in the previous step through the lower set of notches
just forward of the S1 spar web in ribs R2 and R1.
Carbon flat stock spar spans the wing center section from the inside edge of the right sub rib R2b to the left
sub-rib R2b. Fit the sub ribs R2b (sheet 03/21) to the wing assembly to assist with centering the carbon flat
stock spar. If the flat stock spar is a bit long remove from assembly, trim, and re-install.
8.
With the lower carbon flat stock installed fill in the remaining sub ribs R1a, R1b, and R2a (sheet 02/21) to both
right and left side of wing assembly. Square sub ribs to wing spar, and wing to your flat building board, then
retain with a drop of CA glue at each tab and notch location. Place an additional drop of CA glue at each point
where a rib or sub rib makes contact with the carbon flat stock.
