Carl Goldberg GBGA1044 - Manual (Page 11)

11
2 Slide the stab onto the aluminum tubes.
Use the two #4x 1/2” screws to lock the stab
in place. The blind nuts are already installed in
the fuselage.
Be sure and use thread lock on the bolts.
Repeat for the other stab half.
3. Use a 3/16” drill and drill 1/8” into the hinge
holes on both the stab and elevator so the
hinges will fit up to the hinge pin.
Trial fit the elevator to the stab.
4.
Make a mark 1/4” inboard from the center of
the stab and 1/8” back from the top of the
bevel.
Transfer this mark to the other side of the
stab.
Using a 1/8” drill, drill the hole for the control
horn.
5. Install the 4-40x3” bolt, nylon washer, nylon nut,
and tighten down.
Install the pushrod fitting on the end.
Repeat for the other elevator.
6. Hinge the elevators in place using the same
method we did on the ailerons and rudder.
HINT: Drill the hole from the bottom half way.
Then measure and mark the top of the
aileron and drill down to the hole from the
top of the aileron.
7. Make sure not to screw the pushrod con-
nector down from the top of the screw
more than 1/8” from the top. Leave them
long to provide the mechanical advantage
needed on large surfaces. If more throw is
needed use a longer servo arm.