Goldwing EXTRA330SC User manual

GOLDWING RC
73in EXTRA330SC 120E & 30CC
Giant Scale Aerobatic Aircraft

Specifications
Wing Span: 73"(1860mm)
Length: 70"(1780mm)
Wing Area: 10287sq in(66.3sq dm)
Flying Weight: Gas Version is 9.7-10.5lbs(4400-4700g)
Electric Version is 9-10lbs(4100-4500g)
Glow: .91-1.20（2C）1.10-1.40（4C）
Gas：26CC-38CC Gas DLE30 DLE35
Electric Power：1900-2200Watt electric motor
ESC：80-100A
Radio: 4+ Channels
Servos: 4-5 servos required 95 oz to 160 oz (6-10kg/cm)
All contents copyright 2015, GoldWing RC
Version 2.0, June 2015
Dear Customer,
Thank you for purchasing the new Goldwing RC giant scale aerobatic aircraft. This manual covers the
EXTRA330SC 120E and 30CC aircraft. Goldwing RC proudly presents 73in EXTRA 120E & 30CC, Extreme
Series, which is a premium product line of electric & gas RC airplanes designed for unlimited 3D performance.
The new 73in EXTRA 120E & 30CC adopts cutting edge aerodynamic features, such as streamlined canopy,
aileron counterbalance, removable side force generators (SFGs) .The 73in EXTRA330SC is also loaded with
high-end accessories including genuine Oracover, CF landing gear, tail wheel assembly and control horns.
KUZA brand CNC Aluminium Backplate Hollowed-out Spinner is included as bonus (limited quantities) for
120E version. And KUZA new fuel Tank Assembly is included for 30CC version.
A QUICK WORD ABOUT SAFETY AND RADIO CONTROL FLYING MODELS
With radio control aircraft, like any hobby or sport, there are certain risks. The operator of these models is
responsible for these risks. If misused or abused, you may cause serious bodily injury and/or damage to
property. With this in mind, you will want to be certain that you build your model carefully and correctly. If
you are not an experienced flier, have your work checked and ask for help in learning to fly safely. This model
aircraft is not a toy and must be operated and flown in a safe manner at all times. Always perform a pre-flight
check of the model including all control surfaces, correct function of the radio gear, structure, radio range, and
any other area relating to the safe operation of this aircraft.
Models are not insurable but operators are. You can obtain coverage through membership in the Academy of
Model Aeronautics (AMA). For an AMA information package call 1-800-435-9262, ext. 292 or visit the AMA
website at "www.modelaircraft.org". Or if you are in any other country please contact the appropriate body.
By the act of using the final assembled model, the purchaser/operator accepts all resulting
liability.

Goldwing RC WARRANTY AND RETURN POLICY
GoldWing RC guarantees this product to be free from defects in both material and workmanship at the date of
purchase. This does not cover any parts damaged by use, misuse or modification. In no case shall liability
exceed the original cost of this kit. Because Goldwing RC has no control over the final assembly or
equipment/components used in the final assembly, no liability shall be assumed for any damage resulting from
the use of this model by the user. By the act of using the final assembled model, the user accepts all resulting
liability. If you should find any missing or damaged parts, or have any questions about this product, please
contact within 30 days of the purchase in order to be covered by our warranty. You may contact us at
[email protected].
Included Features:
Improved axles (the material of the axle is stainless steel )
Flat nylon hinges for better flying strength
Aluminium hub rubber wheels
Pre-hinged control surfaces
Larger aileron and elevator design. Up to 60 degrees of throw on all control surfaces for excellent 3D
aerobatic flying
Extra covering provided for small repairs and covered in genuine Ultracote / Oracover
Canopy extended into cowl
One servo for elevator. Pull-push style for rudder
X-shade wood structure ensures high strength of rudder and elevator while keeping the weight down.

Removable stab & rudder

New KUZA Fuel Tank Assembly with aluminum tank cap for 30CC version
KUZA Aluminium Backplate Hollowed-out Electric Spinner included for 120E version (Excellent
cooling effect for brushless motor)

Behind the rudder tray an air exit opening has been created for electric set-ups
Side force generators
Two latch quick release canopy.

Carbon Fiber accessories version：
Extra strength carbon fiber control horns
One piece air foiled carbon fiber landing gear

Carbon fiber tail wheel assembly with CNC machined metal parts, including the aluminium tail wheel
hub.
Strengthened fuselage by carbon fiber rods
Increased diameter carbon fiber wing tube over previous versions
Scheme B White/blue/black

Scheme C White/blue/red

Scheme D White/blue/red

Items required to complete this model:
26-38 cc gas engine with stock or aftermarket
exhaust system
Appropriate propeller for your engine
All the required engine and exhaust mounting
hardware
Ignition battery and switch
One quality throttle servo and appropriate servo
arm
3 high quality metal gear servos of 80 in-oz or
better for the ailerons and elevators
One high quality rudder servo of 160 in-oz or
better
Appropriate servo arms for the above
Heavy duty servo wire extensions.
Recommends three 18”, two 12” extensions.
Your installation though may vary.
Switches with charging jacks for the Rx
Rx batteries of significant capacity to power
your choice of servos.
Receiver of your choice
Required tools
Covering Iron and heat gun
Assortment normal hobby tools such as
screwdrivers, hobby knife, drill and drill bits,
pliers, etc.
Thick and thin CA adhesives
30 minute epoxy
Isopropyl alcohol
Ruler or tape measure
Blue thread-lock or equivalent
Note: As with all kits, it’s a good idea to read all the instructions and study the parts before you begin
construction. Handle the parts of this kit with care so you do not damage any of the structure or
covering. Inspect all the parts for any shipping damage and report any issues to as soon as you can.
Make sure you have a flat and sturdy workbench and follow all safety advice for the tools and adhesives
you plan to use.
AIRCRAFT COVERING
1. With all ARFs, varying temperatures and storage delays can cause covering material to loosen over time and
transportation. We recommend lightly going over all the covering with a covering iron set at medium
temperatures. Be sure to use a soft cover over your iron so you do not scratch the covering surface. Be sure
you go over all seams and edges of the covering to assure it is secure to the airframe and other covering. Be
careful not to apply too much heat or you may cause bubbles or damage to the covering. A heat gun may
also be used along with a soft cotton cloth to shrink and adhere the covering. Again, be extremely careful
when using a heat gun.
2. Be sure to seal any exposed wood with a thin coating of epoxy to prevent engine oil from soaking in. This
is especially important around the engine compartment and servo openings with exposed areas.
3. Some modelers prefer to seal the hinge gaps using strips of appropriate covering or clear trim tape. We
have found this to be helpful with models intended for higher speed flight or models with unusually large
hinge gaps. Our aircraft utilize a very tight double beveled hinge line and do not normally require this step.
Sealing the hinge gaps is therefore left as an option for the modeler.

Please verify the accessories before assemble:
Carbon Fiber control Horns (Bag No. KA03CA4) : 8 single horns for ailerons and elevator and rudder.
Sand the area of the horn that will be glued to help adhesion.
KUZA 3” Aluminium Backplate Hollowed-out Electric Spinner for 120E version (Bag No. KAG0205)
Color：Scheme B is white, Scheme C & D is red

KUZA new 360cc fuel Tank Assembly for 30CC version (including Aluminum fuel cap)
Push rod kits: Two 2.5x60mm Pushrods for aileron. One 2.5x130mm Pushrod for elevator.One
2.5x110mm for rudder（Pull-push style）
Ball link assembly (Bag No. KAG00122): 8 for ailerons & elevator & rudder.

Alu long arm kits: 4 single arms for ailerons and elevator and rudder.
Servo lead safety clips：5 pcs (Bag No. KAG0021)
Alu Main wheels：2pcs（Bag No. KAG0157）
New axle kits (Bag No. KA03CH)

Carbon fibre tail wheel assembly with CNC machined metal parts, including the aluminium tail wheel
hub. (Bag No. KAGC103)
Extra covering provided for small repairs
4 allen key wrench (Bag No. KA03CE)

Side force generators (mounted with four M3X18 hand bolts and 2 balsa sheets)
Screews for landing gear: 4(4x20mm) hexagon bolts and 4 washers
Bolts & washers for cowl: 4(3x14mm) Hexagon bolts and 2(10mm) PTFE washers and 2 wsahers

20 POM & ALU washers for 120E motor
Gas engine washers for 30CC version: 12(20mm) POM washers
Spares bag(Two spare wing bolts & One spare tail wheel spring)

RUDDER ASSEMBLY
1. Rudder pushrod linkage set. NOTE: Rudder is Pull-push style.
2. Locate rudder, 2 control horns and base plate. Rudder is driven by pull-push rod, servo bay is on the right
side of the fuselage.
3. Locate the slot for control horn on rudder, remove the covering over the slot with heated soldering iron or
sharp hobby knife, and make sure you do it on the right side of the aileron. Insert control horn into base plate
then into the slot, trace the edge of base plate with hobby knife then remove the underlying covering.

4. Use some fine sandpaper to roughen up the root of control horn where will be glued into the slot.
5. Fill the slot and coat the root of control horn and the bottom of base plate with 30 minute epoxy, insert the
horn into the slot, press it down firmly. Wipe off excessive epoxy with alcohol wipes. Set aside until cured.
Pre-hinged control surfaces
6. The rudder control surface is Pre-hingeds.
7. Cut the covering from the rudder servo slots from corner to corner and iron down inside the openings.
Connect servo wire extensions to your servos and secure the connections with the supplied clips. Feed the

servo wires into the fuselage. The screw holes for servo mounting are laser pre-drilled, it is advisable to
apply some thin CA to strengthen them, Install the servos and screw firmly in place.
8. Use your radio to set the center of servo and then assemble and adjust the length of the control rod. The
servo arm should be as close to perpendicular to the control rod as possible while the aileron is at neutral.
Double check all screws, bolts and nuts to assure proper installation and operation without binding. Once
satisfied, permanently attach the ball links to the servo arms and horns with the supplied screw and nut.
9. We recommend using KUZA 1.5” aluminium CNC servo arm (sold separately) for rudder control.