Hangar 9 Funtana 125 Assembly Manual page 18


Step 11
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 12
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.
18

Step 13
Place 2–3 drops of thin CA into each hole. This will harden
the threads and prevent the screws from pulling loose.

Step 14
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.

Step 15
Secure the control horn to the rudder using three 2mm x
16mm self-tapping screws and a #1 Phillips screwdriver.

Step 16
Use a pin vise and a 1/16-inch (1.5mm) drill bit to drill a hole
in the center of each of the three hinge slots in the rudder
and fuselage. This creates a tunnel for the CA to wick into,
making a better bond between the hinge and surrounding
wood.
Hangar 9 Funtana 125 ARF Assembly Manual