Hangar 9 P-51D Mustang 20cc Manuel D'utilisation page 24

 TAIL WHEEL ASSEMBLY INSTALLATION
128. Slide the metal bushing on the tail wheel wire, then the tail
wheel. Apply thread lock to the M3 setscrew. Secure the
tail wheel to the wire using a 3mm wheel collar and M3
setscrew. Tighten the setscrew using a 1.5mm hex wrench.
129. Remove the tail wheel hatch from the fuselage.
 A plastic hatch has been included with this model
for modelers that may install an optional retractable
tail wheel. Installation of a retractable tail wheel is at
the discretion of the modeler and not covered in this
manual. Trimming of the hatch will be required to allow
operation of the tail wheel retract mechanism.
130. Secure the tail wheel mount in the fuselage using M3 x 15
socket head cap screws and M3 washers. Place a drop of
threadlock on the screws before installing them in position.
Use a 2.5mm hex wrench to tighten the screws.
131. Remove the nut from the pushrod and install it into the tube
from inside the fuselage.
EN
132. Thread the nut on the pushrod and prepare the clevis with a
clevis retainer. Attach the clevis to the tail wheel arm. Secure
the clevis and retainer.
133. Prepare the rudder servo arm by enlarging the holes 5/8 inch
(16mm) from the center of the servo using a pin vise and 1/8-
inch (3mm) drill bit. The rudder and tail wheel pushrods ends
will attach to these holes.
134. Attach the pushrod to the rudder servo arm using a pushrod
keeper. Use the hole in the arm that is 5/8-inch (16mm) from
the center of the servo arm.
 Use the rudder trim to flight trim your model. Adjust the
linkage if your model requires adjustments during taxi.
135. Replace the tail wheel cover on the fuselage.
 There may be a wooden cross bar on the front
inside edge of the tail wheel cover hatch that needs
to be broken away in order for the hatch to fit.
136. Use hobby scissors and a hobby knife with a #11 blade
to trim the tail gear doors. Use medium grit sandpaper to
smooth any rough edges
24
5/8 inch 5/8 inch
(16mm) (16mm)