E-flite Taylorcraft 450 ARF - Manual (Page 9)

9 E-flite Taylorcraft ARF Assembly Manual
  5. Turn on the transmitter and center the aileron stick
and trim. Check that any programming has been cleared
if you are using a programmable radio. Plug the aileron
servos into a Y-harness, then into the receiver and check
the operation of the servos. Attach the arm perpendicular
to the servo.
  6. Secure a 6-inch (152mm) servo extension to the
servo lead using your favorite brand of servo wire keeper
or tape.
  7. Locate the correct servo mounting plate for your wing.
The notch in the correct plate will align with the notch in
the wing as shown below.