20
E-flite P-51B Mustang 32e ARF Assembly Manual
6. Use the radio system to center the aileron servo.
Place the servo horn on the servo so the longer
portion of the arm is parallel to the servo center
line. If the horn does not align, rotate the horn
180-degrees, as there are an odd number of splines
on the servo output. Use a felt-tipped pen to mark
the arm that protrudes through the servo cover.
7. Remove the servo horn from the servo. Use
side cutters to remove the arms from the horn that
were not marked in the previous step. Enlarge the
hole in the servo horn that is 5/16-inch (7mm)
from the center of the horn using a pin vise and
5/64-inch drill bit.
8. Attach the servo horn to the servo using the screw
removed from the servo and a #1 Phillips screwdriver.
9. Use string or a commercially available connector
to secure a 12-inch (305mm) servo extension to the
aileron servo lead.
10. Remove the tape holding the string located in
the wing near the opening for the aileron servo. Tie
the string to the end of the aileron servo extension.
11. Use the string to pull the aileron servo extension
through the wing to the opening for the flap servo.
When the flap servo is installed, you will use the
string to pull both the aileron and flap servo leads
to the root of the wing.
