Remove the screws that hold the servo horns
in place and adjust the horns so that they are
perpendicular to the servo. This will be their
neutral position. It is a good idea to use single
arm servo horns rather than the round horns
most servos come with. The sketch shows how
to cut a horn for use here. Reinstall the screws
that hold the horns in place.
D 9. Press the fin/rudder into the channel
with the back edge of the fin even with the
back edge of the channel as shown in
the photo.
D 8. Attach the stabilizer/elevator to the
back of the channel using two 4-40 x 5/8"
machine screws, two #4 flat washers, two
4-40 lock washers and two 4-40 nuts.
D 10. Assemble the two pushrods by
screwing a 1" threaded rod into one end of
each inner pushrod and then screwing a
nylon clevis onto each threaded rod. The rod
should thread into both the pushrod and the
clevis at least 13 turns.
The sketch shows how the pieces are
installed. The prebent tail skid is held in
place by the rear screw.
D 11. Attach the two long pushrods to the
two rear servos as shown in the photo. Slide
18
