13
Hangar 9 Funtana 125 ARF Assembly Manual
HINGING THE AILERONS
Step 20
Measure in 10
1
/
8
-inch (257mm) from the inside edge (widest
end) of the aileron on the bottom. This will mark the center
for the control horn.
Note
: The bottom of the aileron will have two black
stripes.
Step 21
Position the control horn on the aileron. The front (straight
edge of the horn) will align with the tapered edge of the
hinge line as shown. Align the center line of the horn aligned
with the mark made in the previous step. Use a felt-tipped
pen to transfer the location for the three mounting holes on
the aileron.
Step 22
Use a drill and 1/16-inch (1.5mm) drill bit to drill the holes
for the horn mounting screws. Drill the holes 5/8-inch
(16mm) deep.
Hint
: Wrap a piece of tape around the drill bit so you
can drill the depth of the holes accurately. The tape will
indicate when you reach the proper depth.
Step 23
Use a #1 Phillips screwdriver to thread a 2mm x 16mm self-
tapping screw into each of the holes. This will cut threads in
the wood.
Step 24
Place 2–3 drops of thin CA into each hole. This will harden
the threads and prevent the screws from pulling loose.
Step 25
Thread a control horn end on the control horn until the top
edge of the end is 1-inch (25mm) from the base of the horn
as shown.