Carl Goldberg GBGA1075 User Manual

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Congratulations on your purchase of the Matrix 40 Extreme 3-D ARF. This is a very unique dual­purpose aircraft, capable of flying any FAI pattern sequence with ease, while exhibiting remarkable
3-D capabilities. Every effort has been made to produce a lightweight, straight, easy to assemble
aircraft. Because of its oversize control surfaces which are double beveled to allow for extreme
throws, great care must be taken in the set-up and flying of this airplane. Quality hardware compo­nents have been provided to allow for 3D set-up while maintaining adequate mechanical advantage
to eliminate flutter. It is you responsibility as an advanced pilot to fly the aircraft in an intelligent man­ner. THROTTLE MANAGEMENT IS A MUST!!!!!!! Carl Goldberg Products has flown the Matrix 40
through a very rigorous flight-testing schedule and have stressed the airframe beyond all practical
parameters without a single failure. Carl Goldberg Products will NOT

warrant the Matrix 40 against
flutter due to improper set-up or excessive speed maneuvers. having said that, we believe you will
find the Matrix 40 to be one of the most responsive, in-the-grove aircraft on the market. The Matrix
40 excels at high-alpha maneuvers including Harriers (both upright and inverted), high-alpha rolls,
and high-alpha knife edge. Torque rolls, waterfalls, knife edge loops and elevators are all within the
performance parameters of this unique aircraft. Just remember to use common sense when flying
this high performance machine.

MA

MA

TRIX 40

TRIX 40

PT. #6135 6/03

CARL GOLDBERG PRODUCTS, LTD.

P.O. Box 88 Oakwood GA 30566 Phone #[phone] Fax # [phone] www.carlgoldbergproducts.com

'Copyright 2003 Carl Goldberg Products, Ltd.

EXTREME 3-D ARF

EXTREME 3-D ARF

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We are very proud of the construction of the Matrix 40 and all of our other ARF aircraft. Each air­craft is jig built to insure a straight true airframe. Every effort is made to build as light an aircraft as
possible. As with any professional builder, glue is used sparingly. Please take a moment during

assembly and run a bead of CA or aliphatic resin into the high stress joints that you can reach
such as the landing gear plate, servo mounting trays, wing hold down blocks, etc. Also, during

the course of shipping from the manufacturer to our facility in the United States, it is not uncommon
for the aircraft to experience several changes in climate. This may cause the iron-on covering to devel­op wrinkles. This is not a fault of the manufacturer. Please take a few minutes with your heating iron
and heat gun to iron down the seams and re-shrink the covering where needed. The results will be a
beautiful aircraft with a breathtaking finish that you will be proud to display at your flying club.

Important Information

Covering coming loose is not COVERED UNDER WARRANTY. Due to temperature changes the

plane may develop some wrinkles in the covering that you will need to remove with an iron. Be sure

to seal the edges down first so that you do not cause the covering to shrink and leave exposed

areas of wood. Please inspect the plane before beginning to assemble to make sure you are happy

with it. After assembly has begun you cannot return the kit. If you find a problem before beginning to

assemble the plane you must contact us, please do not return it to the dealer.

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Parts List

1. Fuselage

2. Fiberglass Cowl

3. One piece wing /ailerons

4. Stab/elevator assembly

5. Rudder

6. Fiberglass wheel pants

7. Canopy

8. Fiberglass landing gear cover

Hardware List

1. (2) Motor Mounts

2. (4) 4mm x25mm bolts

3. (4) 4mm blind nuts

4. (4) 4mm lock washers

5. (4) 4mm flat washers

Motor Hardware

Landing Gear

1. Main Gear 1 left 1 right

2. (4) 3mm x12mm bolts

3. (4) 3mm flat washers

4. (4) 3mm blind nuts installed in fuselage

5. (2) 2-1/4” main wheels

6. (2) 4mm x40mm bolts (axles)

7. (2) 4mm nuts

8. (2) 4mm flat washers

9. (2) 4mm wheel collars

Tail wheel

1. (1) Tail wheel bracket

2. (1) 7/8” tail wheel

3. (2) 2mm x10mm screws

4. (2) 2mm wheel collars

Wing

1. (2) 5mm x40mm wing bolts

2. (2) 5mm washers

Elevator pull-pull hardware

1. (2) 2-56 x 29” Threaded Rod

2. (2) Nylon Clevis

3. (1) bellcrank assembly with hardware

4. (2) Nylon swing in keepers

COWL HARDWARE

1. (4) 2mm x10mm screws for cowl mounting

Control System

1. (5) Nylon control horns

2. (5) Nylon control horn plates

3. (8) 2-56 x 3/4” Bolts

5. (7) Nylon clevis

6. (7) Silicone clevis keepers

7. (3) Nylon swing in keepers

8. (2) E-Z connectors

9. (1) 1.25mm x50cm Throttle rod

10. (1) 3.25mm x41.5cm nylon tube

11. (1) 2-56 x 10” Rudder push rod threaded

12. (2) 2-56 x 10” Elevator pushrods threaded

13. (2) 4-40 x 4” Double Threaded Rod Aileron
pushrods.

14. (4) 4-40 Golden Clevis

15. (2) 4-40 Nut

16. (2) Clevis Keeper

Fuel Tank

1. (1) Fuel Tank

2. (1) Rubber stopper

3. (2) Metal caps for stopper

4. (1) Screw

5. (1) Clunk

6. (3) Aluminum fuel tubes

7. (1) Silicone fuel line

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Before beginning assembly of your Matrix 40,
we highly recommend that you study this manu­al in its entirety. You should begin planning your
radio installation based on your choice of
engine and equipment from the beginning, as
space is limited within the fuselage of the
Matrix 40.

Because the Matrix 40 is intended for those
with some degree of modeling experience,
every minute detail will not be covered. This is
not a basic trainer. Assembly of this aircraft will
be easy for the experienced modeler, and by
following the instructions within this manual and
using the skills you’ve gained during your mod­eling career you will be able to produce a first
class aircraft.

Building supplies needed

Hobby knife w/#11 blades
Thin CA
Medium CA
Canopy glue
30 minute epoxy
Thread lock
Diagonal wire cutters
Pliers
Assorted drill bits
Various sized screwdrivers( both Phillips and
standard head)
Tape measure
Dry-erase marker
Paper towels
Rubbing alcohol

1. Begin construction by locating the fuselage,
wing, wing bolts, washers, and the horizontal
stab. Using a #11 blade, remove the covering
from the stab location at the rear of the fuselage.

2. Insert the stab into the slot and center using
a tape measure or ruler to measure from the
fuselage side to the tip of the stab.

3. With the stab centered, measure from one tip
to the back of the wing cut out. Move stab until
this figure is the same on both sides.

Mounting Stab

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4. When satisfied with the alignment, use a dry­erase marker to draw a line on side of the stab,
top and bottom where it meets the fuselage.
Remove stab from opening.

5. Using the #11 blade, remove the covering on
the top and bottom of the stab between the
lines. Cut about 1/8” inside the lines so that
there is no exposed wood when glued in place.
Be careful to cut only the covering and not into
the wood of the stab as this would weaken the
stab.

8. Insert the stab into the fuselage one more
time before gluing and check alignment with
wing. Wing and stab should be parallel. When
satisfied with alignment, remove stab. Mix some
30- minute epoxy and apply to stab opening in
fuselage and to bare balsa on the stab. Re­insert stab into fuselage and check alignment
using all previous methods. Wipe away any
excess epoxy using rubbing alcohol and a paper
towel. Use masking tape to maintain alignment
while glue dries.

6. Using the #11 blade, remove the covering
over the rear wing bolt holes on the top of the
wing.

7. Turn the wing over and remove the covering
over the wing bolt holes. Slide the front wing
dowels in to the holes in the fuselage saddle.
Push down on the rear of the wing till it sits in
the fuselage. Using two wing bolts and washers,
screw the wing down to the fuselage.

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1. While the epoxy dries on the stab, mount the

control horns on the elevators. Align on the

inside edge of elevator on the bottom side, with

the holes on the horn aligned over the hinge line.

Use a square to check alignment of holes over

hinge line, this is important to maintain even

throw on both elevators. Use a long drill, piece of

wire, or pencil to mark the holes through the con-

trol horn. Remove the horn and drill the holes

using a 5/64” drill.

Mount the horns to the elevators using the 2-56

x3/4” bolts and the nylon plates on top of the

elevator.

2. Install the e-z hinges in the stab using a pin
in the center of each to make sure they stay
aligned.

3.Install the elevators on the hinges and with the
elevators pushed tightly against the stab,
remove the pins. Using thin CA, glue each hinge
in place by applying two to three drops on each
hinge. Have the elevators deflected to full up
when gluing the bottom side of the hinges and
deflected to full down when gluing the top side
of the hinges. This will insure that you can get
full throw later.

PLACE CONTROL HORN
AT HINGE LINE

2-56 x 3/4” SCREWS

SNAP LINK

CONTROL
HORN

1. Locate the tail wheel bracket, mounting screws,
wheel and wheel collar.

TTAIL

AIL

WHEEL

WHEEL

BRACKET

BRACKET

Control Horns