Great Planes Giles G-202 46 Kit - GPMA0238 - Manual (Page 13)

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6. Carefully slide the die-cut 3/32" balsa TE web and
the die-cut 3/32" balsa LE web over the ribs in their
notches until the top of the webs are flush with the top of
each rib. Take your time and be gentle; this balsa structure
is still fragile at this point, but when finished will provide you
a strong, light platform. When everything is aligned, use
thin CA to glue all joints except any joints connecting
to R-1.
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7. Test fit (do not glue) the bottom spar into the ribs,
fitting the spar doubler into the notch in the main web.
When you are confident you can fit the spar in place,
remove the spar. Lay a bead of medium CA along the
bottom of the main web and the corners of the rib slots, and
reinstall the bottom spar.
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8. Use a builder’s square to be sure R-1 is square to
the building board, then glue R-1 to the spars and the webs
with thin CA. Note: Be sure not to press down on the spars.
The top of the top spar must align with the top of R-2A, and
the bottom of the bottom spar must align with the bottom
of R-2A.
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9. Align and glue the die-cut 1/8" plywood control
horn support to R-4 and the aileron web.
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10. Align the die-cut 3/32" balsa aileron end cap
parallel with R-3 and glue it to the TE web.
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11. Position and glue the die-cut 1/8" ply rib R-2A.
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12. Fit the die-cut 1/8" ply aileron servo tray in the
slot in R-4, holding tight against the top of the bottom spar.
Glue in place with thin CA.
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13. Fit the die-cut 1/8" ply center web tight against
both spars and R-1. Glue in place with medium CA.
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14. Align the 1/16" x 1/2" x 30" TE sheeting with the
back of the TE web, allowing at least 1/8" excess to
overhang each end of the wing panel. (Leaving the excess
will allow you to sand the sheeting perfectly flush with R-1
and the balsa end cap later.) Glue it in place. Hint: Lay the
TE sheeting over the TE web and mark a line along each
rib at the edge of the sheeting. Remove the sheeting and
lay a bead of medium CA along the TE web and the ribs up
to those marks. Reposition the TE sheeting flush with the
TE of the TE web and hold in place until dry.
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15. Select a piece of the 1/16" x 2-3/4" x 24" aileron
sheeting, and carefully true one edge. Do so by aligning a
no-slip straightedge approximately 1/32" down from and
parallel with a long edge of the sheet. Trim the sheeting
along the straightedge, being careful to keep the knife
vertical. Discard the thin piece of sheet you trimmed.
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