Great Planes Super Skybolt 60 Kit - GPMA0170 - Manual (Page 37)

back of the spars Sand them if needed to make
them fit between ribs T1 and T4 Securely glue the
braces in place with either thick CA or epoxy.
Clamp the braces together until the glue cures. D 23. Glue the 1/4" x 3/8" x 3/4" basswood screw
blocks (SKY6W39) to the outside of each T1 rib.
They should be located just behind the rear top
plate as shown on the plans and flush with the
bottom of the ribs.
INSTALL THE TOP WING
SHEETING
D 20 Punch out the die-cut 1/8" ply T2A and T2B
ribs (SKY6W10) and trial fit them in place Sand
them if necessary to get them to fit nicely Do not
let the T2B's bend the trailing edge brace. Glue
these in place with CA.
D 21 Trial fit the die-cut 1/8" balsa T3A and T3B
ribs (SKY6W04) in place Sand these if necessary
to achieve a good fit and glue them in place.
D 22 Install 1/16" balsa shear webs on the front
and the back of the spars between the T1 ribs and
in the bays between the T4 and T5 ribs.
D 1 Sand the outer tip of the trailing edges to fair
them in with the wing tips as shown in the photo.
D 2 Lightly sand the tops of the ribs to blend with
the notched trailing edge The 1/16" x 7/8" x 29"
balsa trailing edge sheeting (SKY6W20) is
installed now This has to be done on an absolutely
flat surface or the wing will not end up straight
Apply thick CA to one of the TE'S (except on the
tapered part past T7) and press a trailing edge
sheet in place Allow the tip end to slightly overlap
the wing tip Hold the sheeting in place until the
glue cures NOTE: The edge of the TE sheet may
not be exactly straight, but just position the sheet
so it slightly overlaps the TE, and any overlap can
be sanded off flush with the TE later.
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