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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.
❑
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 each blind nut to prevent them
from popping loose.
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 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.
❑
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.
❑
Set the wing back into the wing saddle and realign it.
❑
Secure the wing into place using two 4mm x 35mm
machine screws and two 4mm flat washers.
☞
Don't overtighten the screws. You don't want to crush
the wing.