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Congratulations on your purchase of the 

Extra

330ARF

. This is a very unique dual-purpose air-

craft, capable of flying any FAI pattern
sequence with ease, while exhibiting remark-
able 3-D capabilities. Every effort has been
made to produce a lightweight, straight, easy to
assemble aircraft. Because of its oversize con-
trol 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 

Extra 330ARF

through a very rigorous flight-testing schedule
and have stressed the airframe beyond all prac-
tical parameters without a single failure. Carl
Goldberg Products will NOT warrant the 

Extra

330ARF

against flutter due to improper set-up

or excessive speed maneuvers. having said
that, we believe you will find the 

Extra 330ARF

to be one of the most responsive, in-the-grove
aircraft on the market. Just remember to use
common sense when flying this high perform-
ance machine.

We are very proud of the construction of the

Extra 330ARF 

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 air-
craft 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 fin-
ish that you will be proud to display at your flying
club.

Before beginning assembly of your 

Extra

330ARF

, 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 begin-
ning.

Because the 

Extra 330ARF 

is intended for

those with some degree of modeling experi-
ence, every minute detail will not be covered.
This is not a basic trainer. Assembly of this air-
craft will be easy for the experienced modeler,
and by following the instructions within this
manual and using the skills you’ve gained dur-
ing your modeling career you will be able to pro-
duce 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
Electrical tape
4-40 Tap & Die Set
3/32, 7/64, 9/64 & 3mm Allen wrench
Wax Paper

Note:

Thread lock must be used where

ever any machine bolts are going into
any type of nuts. If you do not use
thread lock the bolts could become
loose and fall out in flight.

Summary of Contents for EXTRA 330 ARF

Page 1: ...munications Commission you are required to use only those radio frequencies specified for Model Aircraft LIMITED WARRANTY Carl Goldberg Products Ltd has inspected and certified the components of this aircraft The company urges the buyer to per form his own inspection prior to assembly and to immediately request a replacement of any parts he believes to be defective for their intended use The compa...

Page 2: ...to 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 air craft 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 ta...

Page 3: ...n covered to protect it from adhesive as well as cuts and other damage Many people cover their work area with a sheet of dry wall sheet rock and or waxed paper t o pre vent CA Glue and Epoxy from ruining the work surface CONSTRUCTION TIPS IMPORTANT ALWAYS READ A FEW STEPS AHEAD This will alert you to coming instructions and will help you plan accordingly Using the Parts Identification section fami...

Page 4: ...g Mix up a liberal amount of 30 minute epoxy Working with 1 hinge at a time place a dab of epoxy and insert the hinge half way into one of the aileron holes Repeat for each of the other hinges for that aileron 5 Working quickly place some epoxy on the second half of each hinge and insert the aileron into the wing Slide the aileron toward the wing until no gap remains between the aileron and the wi...

Page 5: ...he plug to the root rib Mount the outer aileron servo to the wing Aileron 6 Pull the second half of the Y harness out the inner servo hole Plug the second aileron servo into the wire harness Always tape them securely together with electrical tape Install the second aileron servo into the wing AILERON CONTROL HORN INSTALLATION 2 With the aileron servo in place make a mark on the aileron at a 90º de...

Page 6: ... 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 1 Slide the small stabilizer tube into one side of the stab Then slide the assembly int...

Page 7: ...o the stabilizers till dry 2 cut two barbs off of two hinges on one side only 3 Insert the shortened hinge into the hinge hole closes to the fuselage Make sure that the hinge fits completely into the stabilizer Keep cutting the hinge till it fits ELEVATOR SERVOS 1 Collect the following items 2 Servos 2 24 Servo Extensions 2 4 40 x 3 1 2 Double Threaded Pushrod 4 4 40 Hex Nuts 4 4 40 Metal Clevis 4...

Page 8: ...ainst the metal clevis Install a clevis clip on to each clevis Repeat the above steps for the second eleva tor 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 metal clevis is fully closed and a clip is installed before and after each flight RUDDER TAILWHEEL 1 Collect the followin...

Page 9: ...wheel springs approxi mately 1 2 from the other side of the long wire On the side of the spring that you just cut off bend 2 or 3 coils of the spring out so that they can hook through the horn bracket 9 Twist the end of the spring on to the horn bracket Insert the long wire end around the second horn bracket Twist the wire so that it will stay hooked to the bracket 10 Repeat steps 8 9 Note The spr...

Page 10: ...e on the other side of the rudder control horn 6 Install the rudder servo in to the rudder servo tray Note We have installed a double servo tray for better rudder performance This is a option We did not include the hardware for this option 7 Remove the cables from the servo tray Insert the cable through the brass tube and then through the hole on the end of the rigging couplers Bend the end of the...

Page 11: ...d the 3mm locking nut on to the bolt and tighten Repeat for the other three bolts Reinstall the landing gear cover WHEEL AND WHEEL PANTS Collect the following items 2 5 32 x 1 1 4 Axle with Locking Nut 4 5 32 Wheel Collars 4 4 40 x 1 8 Cup Screws 4 4 40 Blind Nuts 4 4 40 x 1 2 Button Head Screws 2 3 1 4 Wheels 1 Mount the axle to the landing gears 2 Place the wheel pant onto the axle 3 Align the b...

Page 12: ... wall Clamp the engine in place and and mark the location of the mounting holes Drill using a 11 64 bit Screw the engine onto the motor mount using the 8 32 x 1 1 4 screws and locking nuts 3 Keeping the engine perpendicular to the table top clamp the other motor mount to the engine Mark and drill the second motor mount then screw the mount to the engine 4 Place the motor mount onto the firewall Ce...

Page 13: ...od 1 EZ connector 1 Snap Nut 1 4 40 x 1 8 Screw 1 Nylon Snap Link 3 Install the throttle servo 3 Thread the nylon snap link onto the wire Attach the thread link to the servo arm Gather the following items 1 fuel tank 1 rubber tank stopper 1 clunk 1 3mm x 25mm screw 1 cap washer large 1 cap washer small 2 3mm x 40mm brass tube 1 3mm x 60mm brass tube 1 silicone tube 4mm x 80mm 3 silicone tube 5mm x...

Page 14: ...ould split the tank 5 Attach the three pieces of 5mm tubing to the three tank outlets They are different colors so you can tell which are the two vents and which is the fuel pickup after the tank is installed Make a note of which color you attach to which tube The short brass with the clunk is the fuel pickup and must go to the carburetor One of the long brass tubes is the vent and should go to th...

Page 15: ...t to make an opening for the needle valve and the fuel lines 2 Attach the cowl using the 4 40 x 3 4 socket head bolts and 4 washers RECEIVER BATTERY SWITCH Install your radio switch Install your receiver and battery pack accord ing to your radio instructions The Extra 330 has lots of room to move the battery around to help with the CG Do not make a final place till you have balanced the plane We p...

Page 16: ...op of the fuselage Put in place the canopy over the fuselage hatch Glue in place using canopy glue Balancing Your model should balance at 5 3 4 to 6 3 4 back from the leading edge of the wing next to the fuselage For extreme 3D flying you may want to move the CG back even farther after you are comfort able with the Extra 330 Just remember that the further back you go the more sensitive it will bec...

Page 17: ...ks perfectly should any flights be attempted Again be careful to not use your transmitter when anyone else at the field is flying or testing on the same frequency After the range check stand behind the model and make sure the control responses are correct Moving the control stick to the right should give right aileron movement up Moving the stick back or down on the Tx should move the elevator up ...

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