20. Lay R1 thru R11 over the spar in their prop-
er location on the plan. Place the 1/4” sq.
trailing edge stick against the back of the
ribs in the slot provided. Starting with R1
and working thru R11, lay a small triangle
next to the rib to stand them 90 degrees to
the building surface and verify proper loca-
tion over the plan. When satisfied, glue to
the main spar and trailing edge with CA.
Be sure to glue only the back of the ribs to
the 1/4” trailing edge. the tab will be
removed later.
19. Using thin CA, reinforce the thin area of the
tabs on the front of ribs R10 and R11. This
will insure the tabs will stay on the ribs
while you are building the wing.
21. Carefully fit the top spar into all rib slots
and glue. Make sure that all ribs remain at
90 degrees from the building surface.
Note:
An easy way to insure the ribs are aligned
and evenly spaces is to check them with SW1
thru SW10 shear webs. DO NOT glue the shear
webs at this time.
22. Place the 1/4” x 1” x 36” leading edge
piece in the slots provide on the front of
each rib and glue. Glue the leading edge to
the front of each rib only. The tabs will be
broken off and discarded later.
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