Carl Goldberg GBGA1090 - Manual (Page 5)

5
Removable Stabilizer
1. Using a drill for a 4-40 tap, drill through the
hole located on top of the stabilizer.
2. Tap the hole with a 4-40 tap.
3. Making sure that the stabilizers stay tight to
the fuselage, repeat for the other side.
4. Before flying place clear plastic tape over
the screw holes to keep the screws from
vibrating out.
Installing Elevators
Collect the following parts:
(1) Left Elevator
(1) Right Elevator
(8) C/A Hinge
(2) Nylon Adjustable Control horns
(2) 6-32 x 2-1/4” Allen head Bolt
(2) Nylon Nut
(2) Nylon Cup Washer
Control Horn Part Names
Nylon Adjustable Control Horn
6-32 x 2-1/4” Allen head Bolt
Nylon Nut
Nylon Cup Washer
1. At the corner of the elevator, on the top and
bottom, feel for the pre-drilled hole in the ply-
wood stiffener.
2. Using a 1/8” drill, drill half way through the
elevator hole from both top and bottom till the
drill pass through the elevator.
3. Insert the 6-32 x 2-1/4 allen head bolt into the
top of the elevator.
4. Thread the bolt all the way till the head is
flush with the top of the elevator.
5. On the bottom of the elevator, place first the
cup washer then the nylon nut onto the 6-32
bolt.
6. Using a metric allen wrench tighten the nylon
nut all the way down till it rest in the cup washer
and is tight to the elevator.
7.Thread the nylon adjustable control horn onto
the bolt.(Note: Thread the side that you can
see the cut threads in the nylon onto the
bolt)