Goldwing RC MX2 50CC V4 User manual

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
GoldWing RC
MX2 50CC V4
Giant Scale Aerobatic Aircraft

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
Specifications
Wing Span: 88-1/2"(2250mm)
Length: 85-3/4"(2180mm)
Wing Area: 1488sq in(96sq dm)
Flying Weight: 16.5-17.8lbs(7500-8100g)
Gas： 50CC-70CC Gas DLE55, DLE61, DA50, DA60, EME60，GP61
Electric Power: Hacker Q80-8M with 12S 5000mah 24x10 prop
KUZA EXM 8015 with 12S 5000mah 24x10 prop
Or other 4000Watt electric motor
ESC： 160A
Radio: 4+ Channels
Servos: 5-6 servos required 180 oz to 330 oz (11-20kg/cm)
JR 8911, Savox 1256
All contents copyright 2014, GoldWing RC
Version 2.0, Apr 2014
Dear Customer,
Thank you for purchasing the new Goldwing RC giant scale aerobatic aircraft. This manual covers the
MX2 50CC V4 aircraft. The MX2 is designed for the popular 50-70cc engines and weighs approximately 7.5 kg
to 8.1 kg. Perfect for IMAC or Freestyle flying, this new giant offers everything you want in a giant scale
aerobat including great looks! Covered in genuine Ultracote, this ARF comes with premium hardware, carbon
fiber landing gear,, Larger diameter carbon fiber wing tube, stainless steel Axle kits，carbon fiber horns and
pre-hinged ailerons. Also the new Carbon fibre tail wheel assembly with CNC machined metal parts,
including the aluminium tail wheel hub. We hope you will enjoy your new giant scale aircraft as much as we
have.
The new V4 version of MX2 50CC has the following Improvements:
1. Control surfaces are larger than previous versions. Up to 60 degrees of throw on all control surfaces.
Greater control when carrying out extreme 3D or aerobatic flight.
2. Packed in strong honeycomb board cartoons. For better protection during transportation.
3. Improved carbon fiber tail wheel assembly, using CNC machined metal parts including aluminum tail wheel
hub.
4. Improved wheels with aluminum hub and built with more durable materials, and filled with rubber.
5. Using high quality cap head screws.
6. Spare covering included in the package. Convenient for repairs.
7. Improved ball link assemblies.
8. Upgraded to carbon fiber control horns.
9. Improved axles, the material of the axle is now stainless steel.
10. Increased diameter carbon fiber wing tube over previous versions.
11. Includes Side Force Generator’s(SFG)
12. This V4 new design with its longer fuselage moment arm aiding the tracking of the model, giving it rock
sold precision flight. Making it perfect for modern day flight schedules, IMAC and Freestyle competitions.

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
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
[e-mail].
Included Features:
Anodized aluminum Long servo arms
Adjustable pushrods for easy fine tuning(Includes wrench)

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
Larger aileron and elevator design. Up to 60 degrees of throw on all control surfaces for excellent 3D
aerobatic flying
High quality ball link assemblies

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
Aluminium hub rubber wheels
Improved axles (the material of the axle is now stainless steel )
Servo lead safety clips

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High performance cap head bolts
Flat nylon hinges for inproved flying strength
Honeycomb board carton packing for safer transportation

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
Pre-hinged control surfaces
Pre-assembled and mounted gas tank
Installed servo wire guide tube

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Extra covering provided for small repairs, genuine Ultracote / Oracover
Removable rudder
Side force generators included

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CNC anodized aluminum canopy bolts
Full length tuned pipe design inside the fuselage
Carbon Fiber accessories version：
Extra strength carbon fiber control horns

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
One piece air foiled carbon fiber landing gear
Carbon fiber tail wheel assembly with CNC machined metal parts, including the aluminium tail wheel
hub.

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
Increased diameter carbon fiber wing tube over previous versions
Carbon fiber stab tube

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
Scheme A White/black/green

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
Scheme C Red/white/black

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
Items required to complete this Model:
 50-70cc gas engine with stock or aftermarket
exhaust systems
 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
 Four high quality metal gear servos of 180 in-
oz
or better for the ailerons and elevators
 One high quality rudder servo of 240 in-oz or
better
 Appropriate servo arms for the above
 Heavy duty servo wire extensions.
Recommends two 24”, one 18”, two 12”
extensions. Your installation though may vary.
 Two heavy duty switches with charging jacks
for the Rx
 Two high quality Rx batteries of significant
capacity to power your choice of servos.
 One 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

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
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 commencing assembly:
 Carbon Fiber control Horns (Bag No. KA06CA) : 8 single horns for ailerons and elevator. 2 dual horns
for rudder.
Sand the area of the horn that will be glued to help adhesion.

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
 Adjustable pushrods kits: (Bag No. KA05CBG3) Four 3x60mm pushrods for ailerons. One 3x165mm
pushrods rudder（Pull-push style）
 Pull-pull assembly kits for the rudder. (Bag No. KA05CD)
 Ball link assembly (Bag No. KAG00131): 8 for ailerons and elevators.
 Alu long arm kits (Bag No. KA05CC): 4 single arms for ailerons and elevators. 1 dual arm for the rudder.

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
 Servo lead safety clips：6 pcs (Bag No. KAG0021)
 3.5” Alu main wheels：2pcs（Bag No. KAG0159）
 New stainless steel Axle kits (Bag No. KA05CH)
 Carbon fibre tail wheel assembly with CNC machined metal parts, including the aluminium tail wheel
hub. (Bag No. KAGC104)

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
 4mm ALU canopy bolts (Bag No.KAG0043)
 Extra covering provided for small repairs
 Wrench set (Bag No. KA05CE)
Side force generators (4 x 3x20mm hex bolts & 4 x washers & 2 balsa sheet)

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
 Bolts for landing gear: 4(4x20mm) hex bolts & 4 washers & 4(M4) stainless steel self-locking nuts
 Bolts & washers for cowl: 4(3x16mm) Hexagon bolts and 4 washers
 Spares bag(Two spare aluminum hand-twist bolts \Two spare wing bolts\One spare tail wheel spring)

All contents copyright 2014, GoldWing RC Version 2.0, Feb 2014
RUDDER ASSEMBLY
NOTE: There are pictures of different planes in this manual, however, this plane’s rudder is assembled the
same way.
1．It is much easier to install the twin control horns before installing the rudder. Locate the carbon fiber
rudder control horns, ball links, and associated bolts and nylon-insert lock nuts. Use some fine sandpaper
to roughen up the center areas of the two control horns so that the glue adheres better. Using a sharp
hobby knife or soldering iron remove the covering away from the slots in the rudder and trial fit the two
control horns.
2. Mix up some 30 minute epoxy and coat the inside of the slots and the center of the control horns. Hint: a
scrap piece of 1/16” ply, tooth pick, or old hobby blade can be used to coat the inside of the rudder slots.
Slide the control horns in place and make sure they are centered perfectly by using a ruler to measure
between the pivot holes and the hinge line. Wipe any excess glue off with isopropyl alcohol and paper
towels. Install the ball links, bolts and nuts into the holes to help assure alignment of both control horns
while the glue cures. Set aside until cured. NOTE: There are pictures of different planes in this manual;
however, this plane’s rudder is assembled the same way.