Carl Goldberg GBGA1041 User Manual

Page 6

Position the control horn bolt so that it is 1/2”

back from the hinge line on the mark that you

just made.

Using a 9/64" drill bit, make a hole in the

aileron through to the top side.

Insert the 6-32 x 2” screw from the top through

the aileron.

Place the #6 washer and the 6-32 hex nut on

the bolt and tighten. Make sure that you use

thread lock on the bolt and nut.

Screw the adjustable horn bracket on to the

bolt.

Thread on to each end of the 4-40 x 3-3/4”

pushrod a hex nut and a metal clevis.

Install the metal clevis onto the horn bracket

and the servo arm.

Install a clevis clip on to each clevis and tight-

en the hex nut against the clevis.

Repeat the above steps for the second aileron

servo.

Repeat steps 2 thru 6 for the second wing

half.

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.

Caution:

Make sure each snap link is fully closed and a

clip is installed before and after each flight.

Note:

Now is the time to decide if you want

to glue the stabilizer to the tubes and

the fuselage, or if you wish to have

removable stabilizers.

Collect the following parts:
(1) Left Stabilizer

(1) Right Stabilizer

(1) 1/2” x 16-1/4” Stabilizer Tube

(2) 4-40 x 1/2 bolts

Mounting Stab

Slide the small stabilizer tube into one side of

the stab. Then slide the assembly into the

hole in the fuselage till the stab is flush against

the fuse. (The side of the stab with the hole is

the bottom of the stabilizer). Slide the second

stab onto the tube sticking out the other side

of the fuselage. Squeeze both stab pieces

together firmly on to the fuselage.

Check that the stabilizer is level with the wing.

Shim the tube in the fuselage up or down if

necessary. Do not go any farther till the stab is

level to the wing.

The Stabilizer can be mounted to the

fuselage two ways:

Removable Stabilizer
1.

Using 4-40 bolt, drill and tap the stabilizer tube

at the hole location. This method will allow

you to remove the stab as needed. CAU-

TION:You must watch the bolt holes for

fatigue and drill another hole by rotating the

tube when this happens.