Model Tech Simply Magic Instructions For Final Assembly page 11

Step 2: Installing the Blind Nuts
Remove the wing from the fuselage and enlarge only the two holes in the plywood wing hold-down block using a
15/64" diameter drill bit.
Enlarging the holes will make it much easier to install the blind nuts.
Step 3: Mounting the Wing
Using a ruler and a pencil, draw a vertical centerline on one side of the plywood wing-screw doubler.
Using an 11/64" diameter drill bit, drill open the holes in the wing through the wing-screw doubler. Use the existing
holes in the wing as a guide.
Leave the wing mounted to the fuselage for now. It needs to be mounted to install the belly pan in the next section.
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Install the two blind nuts into the bottom of the plywood
block, using one of the wing mounting screws and washers to
draw the blind nuts firmly up into place.
After installing the blind nuts, carefully apply a bead of
thick C/A around the flange of both blind nuts to prevent them
from popping loose.
Using thick C/A, glue the wing-screw doubler to the
bottom of the wing, making sure that the centerline you drew
lines up with the centerline of the wing, and that the back of the
doubler is about 1/8" in front of the trailing edge of the wing.
The wing-screw doubler must be centered on the wing
so that the belly pan will line up when it's installed later.
IMPORTANT
Remove the covering from the wing where
the wing-screw doubler will be glued into place.
Set the wing back into the wing saddle and realign it.
Secure the wing into place using two M4 x 35 machine
screws and two M4 flat washers.
Don't overtighten the screws. You don't want to crush
the wing.
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