Hangar 9 Extra 300 ARF Assembly Manual page 12

hole. Use a commercially available safety connector instead
of the string and masking tape to secure the connector.

8. Mount the servo so that the output shaft is closer to
the leading edge of the elevator. Pass the extension through
the slot provided in the root of the elevator panel.
The picture below shows the slot that extension needs to exit
from.
12

9. Prepare the linkage and control horn for installation.

10. Screw on the control horn so that the distance
from the elevator hinge line to the center of the pivot point of
the horn is 1 3/8 inch.
11. Power up the servo by connecting it to the receiver. With
radio sub-trim set at 0.

12. Mount the servo arm so it is perpendicular to
the center line of the stab, make adjustment to sub-trim if
necessary.
35% Extra 300 ARF Assembly Manual