Horizon Hobby ARF Hangar 9 Manuel D'utilisation page 8

11. Use a felt-tipped pen to mark the control horn on both sides of the
rudder. This will indicate the area of the control horn where the paint
must be removed.
12. Remove the control horn from the rudder. Place tape against the
lines drawn to prevent removing any unwanted paint. Use medium-
grit sandpaper to lightly sand the control horn where it fi ts into the
udder. Clean the sanded area using a paper towel and isopropyl
alcohol to remove any debris or oils. This provides the surface
texture necessary for the epoxy to bond to. Remove the tape once
the control horn has been sanded.
13. Prepare the rudder by applying tape to the rudder around the
opening for the rudder control horn. Mix 10g of 15-minute epoxy
and apply it to the sanded area of the rudder control horn. Insert the
rudder control horn in the rudder. Check to make sure the horn is
centered correctly in the rudder. Allow the epoxy to fully cure before
proceeding.
14. Remove the elevator from the stabilizer. Set the hinges aside in a
safe location.
 Place a piece of tape on the top of elevator and stabilizer so
they can be oriented in the same direction later in the manual.
15. Install the white elevator control horns to complete the control horn
installation. Follow the same procedure as the aileron control horns
to install the elevator control horns.
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16. Place a T-pin in the center of each of the three hinges.
17. Slide the hinges into position in the aileron with the T-pin resting
against the edge of the control surface. Center the hinge in the slot
and mark the center of the hinge on the bevel of the aileron using a
felt-tipped pen.
18. Use a pin vise and 1/16-inch (1.5mm) drill bit to drill a hole in the
center of each hinge slot marked previously. Drill the hole 1/4-inch
(6mm) deep into the wood.
 Drilling this hole provides a tunnel for the CA to fully wick
into the hinge and surrounding surface. Failure to drill this
hole may result in a hinge that may not be glued properly.
19. Fit all three hinges to the aileron. Make sure to center the slot in the
hinge with the hole drilled in the previous step.
20. Fit the aileron to the wing by inserting the hinges into the slots in
the wing. Position the aileron so the aileron does not rub against the
wing when it moves.
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