
22
Hangar 9 P-51 Mustang 60 ARF Assembly Manual
Step 29
Use a drill and 1/8-inch (3mm) drill bit to drill two holes
through the gear door as shown. Use care not to tear the
covering when drilling through the gear door.
Hint
: Placing the gear door on a piece of wood while
drilling will minimize any possibility of damaging the
covering.
Step 30
With the gear in the “up” position, attach the gear door
to the gear door mount using two 3mm x 8mm machine
screws and two 3mm washers. Use a #2 Phillips screwdriver
and threadlock to install the screws.
Hint
: If the gear door does not align, loosen the screws
to reposition the gear door or loosen the setscrew on
the gear door mount to align the trim scheme. If that
does not work, the holes can be enlarged slightly to
make minor adjustment to the alignment.
Step 31
Repeat Steps 1 through 30 to install the retract mechanism
in the remaining wing panel.
Flap Servo Installation
Required Parts
Wing panel (right and left)
Servo mounting block (4)
2-inch (52mm) safety tubing
6-inch (152mm) threaded pushrod (2)
#2 x 3/8-inch sheet metal screw (8)
Servo (2)
Receiver
Transmitter
Receiver battery
Pushrod keeper (2)
Clevis (2)
Tools and Adhesives
30-minute epoxy
Sandpaper
Mixing stick
Pencil
Clamp (2)
Medium grit sandpaper
Ruler
Phillips screwdriver: #1
Side cutter
Thin CA
Hobby knife with #11 blade Pliers
T-pin
Drill
Drill bit: 1/16-inch (1.5mm), 5/64-inch (2mm)
Rotary tool and cutoff wheel
Step 1
Place the flap servo cover in position on the wing. Use a
ruler and pencil to make a mark that is 1
1
/
32
-inch (27mm) in
from the edge of the cover near the retract. Make a second
mark that is 1
7
/
16
-inch (37mm) in from the edge of the cover
near the root of the wing.
Step 2
Remove the cover and transfer the marks to the bottom side
of the cover. Draw a line that connects the two marks. This
will be used in aligning the position of the servo.
Step 3
Measure 15/16-inch (23mm) from the edge that was
toward the trailing edge of the cover. Draw a line that is
perpendicular to the first as shown.