Rudder, Fin And Tail Wheel Installation - Hangar 9 Sundowner 36 ARF Assembly Manual

Rudder, Fin and Tail Wheel Installation

Required Parts
Fuselage Aluminum tail wheel bracket
Tail gear wire Fin with rudder and hinges
Tail wheel, 1-inch (25mm)
2mm x 8mm self-tapping screw (2)
Wheel collar with setscrew, 1.5mm
Required Tools and Adhesives
Ruler Hex wrench: 1.5mm
Phillips screwdriver: #1 Hobby knife with #11 blade
Rubbing alcohol 15-minute epoxy
Medium grit sandpaper Thin CA
Low-tack tape Mixing cup
Mixing stick Epoxy brush
Felt-tipped pen Square
Paper towel Pin vise
T-pins Threadlock
Drill bit: 1/16-inch (1.5mm)

1. Locate the fin and rudder. Separate the fin from the
rudder and set the rudder and three hinges aside.
10

2. Test fit the fin at the rear of the fuselage. Slide the fin
as far forward as possible. Use a felt-tipped pen to transfer
the outline of the fuselage to the fin.

3. Remove the fin from the fuselage. Use a straight edge
and hobby knife with a new #11 blade to trim the covering
1/16-inch (1.5mm) below the line on the fin to expose the
underlying wood.
Note: When cutting through the covering, use very
light pressure or a hot knife to trim the covering.
If the underlying wood becomes damaged, the fin
may fail in flight, causing the loss of your model.
Note: Read steps 4 through 7 before mixing
any epoxy. You must be able to complete these
steps before the epoxy begins to cure.

4. Mix 1/4 ounce (15mL) of 15-minute epoxy. Use an
epoxy brush to apply the epoxy to the exposed wood on the
fin. Also apply a small amount of epoxy in the slot in the
fuselage where the fin fits.

5. Fit the fin into the fuselage. Use a paper towel and
rubbing alcohol to remove any excess epoxy that oozes out
when the fin is installed.
Hangar 9 Sundowner 36 ARF