12
EN
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
10.
Apply epoxy to each hinge where it will be inserted into
the fl ap. Insert the hinges as shown in Step 6.
AILERON INSTALLATION
15.
Remove the tape and aileron from the wing panel.
11.
Apply epoxy to each hinge where it will be inserted into
the wing.
16.
Use a pin vise and 1/16-inch (1.5mm) drill bit to drill a
hole in the center of each hinge slot. Drill the hole 1/4-
inch (6mm) deep into the wood. Drill holes in both the
wing and aileron hinges slots now.
12.
Apply epoxy into each of the holes in the wing.
17.
Check the gap between the wing tip and aileron.
13.
Fit the fl ap to the wing as shown in Step 7. Check that
the fl ap can move freely and the hinges are all aligned
properly. Use low-tack tape to hold the fl ap in position
until the epoxy fully cures.
18.
Check the gap between the fl ap and aileron. The gaps
in Steps 16 and 17 must be equal before applying CA to
the hinges.
When the flap is lowered and the aileron is in the
full down position, there may be some interference
between the flap and aileron. In flight, the aileron will
not drop down far enough to interfere with the flap.
14.
Use a paper towel and isopropyl alcohol to remove any
excess epoxy before it can fully cure. Use care not to get
epoxy in the moving part of the hinge or between the fl ap
and wing. Continue once the epoxy has fully cured for
both sets of fl ap hinges.
Repeat this section for the remaining flap installation.
19.
Apply thin CA to the top of each of the hinges. Make sure
to fully soak the hinges so the CA can wick into the hinge
and bond to the surrounding wood.
Use thin CA so it wicks into the hinge. A thicker CA
will not wick into the hinge properly. Do not to allow the
CA to run over the covering on the wing and aileron.
