Goldwing 50CC V3 SERIES SBACH300 User manual

50CC V3 SERIES
WWW.GOLDWI NGRC.COM
SBACH300/YAK55SP/M X2/SUKHOI SU26M/SUKHOI SU29/CORVUS RAC E R 540
EDG E540/E XT R A260/EXT RA300L P /K ATANAYAK 54/YAK55M /RAVE N/SBACH342

Thank you for purchasing this excellent almost-ready to fly R/C model!!! This ARF adopts the
latest 3Ddesign features and emphasizes high performance,light weight and fun.This plane is
designed by professional engineers and built by skilled craftsmen.Many of the parts are
already pre-installed for you! We wish you great success in the assembly and flying of your
new model.
Fea tur es:
1. Latest structure
2. Super quality
3. Easy installation
4. Carbon fiber wing tube
5. Carbon fiber tail wheel assembly
6. Extra strength epoxy control Horns
7. Adjustable pushrods for easy fine tuning
8. One piece carbon fiber landing gear
9. Advanced rubber wheels
10. Long servo arms included
11. Servo extension safety connector clips also included
12. Carbon fiber rods to make the wings light weight and strong
13. Scale canopy and latest nilon bolts
14. Fixed ring inside cowling for easy build
15. Complete with accessories
16. Low wing loading makes it easy to fly
17. Light weight construction with high structural strength
18. Excellent aerobatics and 3D performance
19. Two pieces removable wings and stabs
20. Pre-hinged control surfaces ready to fly
21. Pre-installed servo wire tube
22. Pre-mounted and plumbed gasoline tank ready to fly
23. Genuine ORACOVER film
24. Special 3.5in fiber spinner in SBACH300 and SBACH 342 included
If you ha ve a ny pr ob lems an d qu est ions p lea se cont a ct GoldwingR C:
Add r ess: No.19, Wester n J in feng Rd , J ind in g science a n d technology
Zon e, Z huh a i ,Ch ina
Postcode:519028
Tel: [phone]
Fa x:86-756-6123306
In fo ema il: mfg@gold wingr c.com sales@gold wingr c.com
01
INT RODUCT I O N
sales1@gwp lan e.com

At ten t ion
1.You should not regard this plane as toy!
2.Before the assembly please the careful reading instruction booklet, he can give you the full
detail instruction if you are the first contact airplane model public figure, should assemble
under the experienced correct instruction!
3.Please inspect in the packing all components, if lacks perhaps the damage, please
immediately with dealer relation.
4.As a result of weather temperature the moist change, the model outer covering possibly can
appear the phenomenon which relaxes, you may use the package to have a cotton fabric the iron
to burn again the outer covering smoothly, but must take care not to apply too much heat to one
area for long periods of time.
5.Inventory and inspect all parts and hardware for any imperfections or damage. Contact us
quickly if there are missing or damaged parts.
6.Fly only in AMA (Academy of Model Aeronautics) approved areas.
7.The manufacturer can not control the assembly, operation and maintenance of this product
therefore, We are not responsible for any damage that occurs as a result of the use or misuse of
this radio controlled model.
8.All GOLDWING products are guaranteed against defects within 30 days of receiving your
airplane. This warranty is limited to construction or production defects in both material and
workmanship. It does not cover any components or parts damaged by misuse or modification.
9.The purchaser accepts all responsibility of any and all structural or mechanical failures.
10.GoldWingRC reserves the right to make changes and amendments to construction manuals,
terms and conditions without notice.

03
In t r oduct ion --------------------------------------------------------------------
Att ention ------------------------------------------------------------------------
Wing Assemb ly-----------------------------------------------------------------
Aileron Control Horns --------------------------------------------------------
Aileron Servo Installation ----------------------------------------------------
Eleva tor Assembly -------------------------------------------------------------
Elevator Servo Installation ---------------------------------------------------
Stap Tube Installation ---------------------------------------------------------
Ru d d er Assemb ly --------------------------------------------------------------
Rudder HingeandHorns -----------------------------------------------------
Rudder Servo Installation -----------------------------------------------------
Tail Wheel Installation --------------------------------------------------------
Ma in La n ding G ea r Assemb ly -----------------------------------------------
Landing Gear Installation ----------------------------------------------------
Pants Installation --------------------------------------------------------------
En gin e Inst a llat ion ------------------------------------------------------------
Firewall Assembly -------------------------------------------------------------
Engine Assembly --------------------------------------------------------------
Throttle Servo Installtion ----------------------------------------------------
Muffler Assembly -------------------------------------------------------------
Hatch And Fuel Tank Ignition Module ---------------------------------------
Ignition and battery assembly ------------------------------------------------
Cowl Assemb ly -----------------------------------------------------------------
Fligh t Pr epar ation -------------------------------------------------------------
Wing Final assembly ----------------------------------------------------------
Canopy assembly --------------------------------------------------------------
Symmetry Control ------------------------------------------------------------
Control Throws ----------------------------------------------------------------
C.G Location -------------------------------------------------------------------
Engine Debugging -------------------------------------------------------------
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TABLE OF CONT E NTS

04
1.Scuff the horns with sand paper to
ensure a good glue bond.
2.Cut the covering from the aileron
horns to expose the pre-cut slots.
3.Apply 30 minute epoxy inside the
pre-cut slots and coat the horns with
epoxy , Insert them into the pre-cut
slots. Wipe away excess glue with
rubbing alcohol.
2
Ailer on Con tr ol H or n s
1
3
Win gAssemb ly

05
Ailer on Ser vo In sta llat ion
2.The covering of the servo location
had been remove as shown.Put the end
of the servo extension in the servo
location.And then pull the extension
lead through to the root of the
wing.Tapingservoleadtotheinside
ofthewingpanelwillhelpto
preventleadfromdroppingback
insideofwingpanelduring
transportation
M2*8mm screw
4.Mount the servo arm and the
extension arm with M2*8mm screws
and locking nuts as shown.Then turn on
the transmitter and plug the servo into
receiver. Ensure the channel is neutral.
Install the servo arm facing toward the
wing tip.Position the servo arm 90
degrees to the servo. Install the arm
pushrod and adjust the pushrod length
to ensure the aileron and servo are in
the neutral position.
1.Use the provided safety clips to
secure the servo and servo extension
leads.
3.Drill 1mm holes for the servo
mounting screws. Position the servo
with the servo label closest to the wing
trailing edge. Use a drop of thick CA
glue on each screws to prevent tapping
screws from loosening due to
vibration. Install servo with M2*12mm
tapping screws.
Min imum Requ ir ed Ser vo: 180 in.oz / M etal G ea r / Digita l
2
4
Taping
3
tapping screws
M2*12
CA glue
The servo label shouldbe
closest to the wing trailing edge.
1
Serboextensionsafety
Connectorclip

06
Epoxy hor n
3mm latest nylon
ball link assembly
5. Repeat all the previous steps for the other wing.
2
ElevatorAssembly
1.Prehingedcontrolsurfaceis
readytoflyRemove the covering
below to expose the pre-cut slots with a
knife. Scuff the horns with sand paper
to ensure a good glue bond.Install the
two horns with M3*16mm screw and
locking nut. Apply 30 minute epoxy
inside the pre-cut slots and coat the
horns with epoxy, Insert them into the
pre-cut slots.
1
Min imum Req u ir ed Ser vo:180 in .oz / Met al Gea r / Digital
Eleva tor ser vo in sta llat ion
Anodizedaluminum
longservoarm
3X60mm
Stainlesssteel
Adjustablepushrod

07
2.Position the servo with the servo wire
to the wire pre-slot. Drill 1mm holes
for the servo mounting screws using the
long aiguille.
3.Install servo with M2*12mm servo
mounting screws. Use a drop of thick
CA glue on each screw to prevent
screws from loosening due to
vibration.
4.Turn on the transmitter. Make sure
the servo is in the neutral position.
Install the servo arm. Position the servo
arm 90 degrees to the servo,and tighten
the arm screw.
2
4
5.Install the arm pushrod with
M3*16mm screws. Adjust the pushrod
length so that the servo and elevator are
both in the neutral position.
33
5
The serbo label facing the
hinge

08
1.Use the provided safety clips to
secure the servo and servo extension
leads.
Epoxy hor n
3mm latest nylon
ball link assembly
1
2.Run the extension lead through the fuselage to the receiver.
3.Slide the stab tubes in the fuse stab tube sleeves
31
32

22

Sta b tu be in sta llat ion
21

Anodized
Allongserboarm
3X60mm
Stainlesssteel
Adjustablepushrod
Serboextensionsafety
Connectorclip
Preinstalledservowiretube

09
4.Install the stab with M3*12mm
screws. Secure the screws with Blue
Loctite.
5.Repeat the previous steps for the remaining stabilizer.
Ru dderHin gean dH or ns
1
2
1.Remove the covering below to
expose the pre-cut slots with a knife.
2. Scuff the middle of horns with sand
paper to ensure a good glue bond.
Apply 30 minute epoxy inside the pre-
cut slots
M312Screw
4
RudderAssembly
Preinstalledinthislocation

10
3
4
3Coat the horns with epoxy. Insert
them into the pre-cut slots. Installthe
balllinkwithM316mmscrewsand
lockingnuts7ighteningthenutsis
recommendedWipeawayexcess
gluewithrubbingalcoholMake
surethehornsarecorrectlyaligned
andsymmetrybeforetheapoxyhas
cured
4Scuff the hinges with sand paper to
ensure a good glue bond. Apply 30
minute epoxy inside the pre-holes of
the fuselage tail and coat the hinges
with epoxy , Insert them into the pre-
holes.
Ru dder Ser vo In sta llat ion
Epoxy horns
Crimp
Epoxy horns
Crimp
5The rudder cables and couplers have been pre-installed.
Preinstalled
1. Drill 1mm holes for the M2*12mm
tapping screws. Fit the servos as shown
with the servo label facing the
rudder.TurnonthetransmitterAnd
theninstallALlongarmonthe
servopositiontheservoarm90
degreestotheservo
1
Min imum Req u ir ed Ser vo:180 in .oz / Met al Gea r / Digital
The servo label facing the rudder
3mmbrass
connector
Pullpull

11
2
2.Drill 3mm holes in the AL long arm
for installing 3mm ball links and
screws.
Crimp
3Mount the pre-installed bolt link to
theservoarmwiththeM3*16mm
screws and the locking nuts. The pull-
pull connector is only threaded half
way into the ball link to allow for final
adjustment.
3
4Remove any slack in the cables and
crimp to secure. Crimp the brass swage
tube with a crimping tool or
pliers.Finallyyoucanadjustthe
cablebylooseningortightHningthe
cableconnectors
4
3mmbrass
connector
Pullpull Balllink
3mm
Pullpullcable Crimp 3mmbrasspullpullconnector 3mmballlink

12
1.Drill a 4mm hole and fit the steering ball link.Scuffingtheballlinkwith
sandpapertoensureagoodglue bondissuggesttedbeforegluingMake
sure the ball link hole is parallel to the rudder.Apply 30 minute epoxy inside
the 4mm hole and coat the hinges with epoxy , Insert the ball link into the hole.
2Install the tail wheel with 8mm
lucking nuts and three wheel
collars.All wheel collars should be
secured with Blue Loctite.
3Draw a center line with a pencil, Use
the tail wheel bracket as a template and
drill three 2mm holes for the mounting
bolts.
4mm 11
11112222

2
2mm
3
Ca r bonFib er TailWheelInsta llation

13
MainL a n d ingGea r In st a lla t ion
4Mount the tail wheel struts using
three M3*16mm tapping screws. Place
a drop of thick CA on tail wheel strut
tapping screws before inserting in the
pre-drilled mounting holes on the
bottom rear of the fuse.
5Insert the 1.8*180mm steel wire into the rudder steering ball link.Tighten
the set nut.
4
5Insert the 1.8*180mm steel wire into the rudder steering ball link.Tighten
the set nut.
2mmBalllink
18180mm
Steelwire
5
3M316
Tappingscrews
M3X16mm
Tappingscrew3

14
NOTE: the correct edge in mounting
Straightedgeto
Frontoffuse
1.Install the landing gear in the pre
drilled holes with the supplied
M4*25mm screws and locking nuts.
Don’t over tighten and crack the carbon
fiber.
2.Remove the covering below to
expose the holes with a knife and
reinstall the landing gear hatch cover.
Secure the M3*20mm screws with Blue
Loctite.
3.Tighten the locking nut against the
landing gear strut.(for other planes)
M425sockethead
Screwandlocknuts
4
1
2
Gear
Alignaxleboltwithfrontof
3
La nding G ear I nst alla tion

15
4.Install the inner wheel collar on the axle. screw and tighten the wheel collar
in place. Adjust wheel collars in or out until wheel turns freely.
5.Repeat above steps for other wheel
and wheel pant.Final landing gear
installation shown below.
Pa nts I nst alla tion 1(F or YAK ser ies)
Pa nts I nst alla tion 2(For other ser ies)
M320mm
Screwandlock
2
Nut
M5Axleand
Wheelcollar 4 1

5mmwheel
Collar
5
8mm lock nut
4 2


16
Fir ewall Assemb ly
1.There are two pieces of wooden
templates supplied, one for 3W 50cc
gasoline engine,the other one for DA50
engine. Select the right template for
your engine(if it is 3W 50cc or DA50)to
mark the location of mounting holes. If
other engines are used the Universal
template may be modified for any
mounting pattern.
DLE 55 engine
1
EngineInstallation

17
2.Use a 4mm bit to drill the engine
mounting holes in firewall.
1.Use blue loctite to secure the engine
mounting bolts(M5*20mm) in place.
This will insure that the mounting bolts
stay in place over time.
En gine Assem bly
2.Using M5*25mm mounting bolts and flat fender washers mount engine to
firewall. Tighten the bolts evenly to prevent crushing of the firewall.
4MMbit
2
1
3.You can remove engine box top hatch cover for easier installation.
21

M5flatfender
Washers
22

2
3

31

18
3.Distance from front of firewall to
front of engine prop hub should be
proper.Use wood washers(included) to
achieve correct distance.
Th r ottle Ser vo In stalla tion
1.Position the hole and use a 6mm bit to
drill a pushrod exit hole in the firewall
in line with the engine carburetor
throttle arm.
2.Assemble ball link to threaded end of
pushrod.Thread ball link half way onto
pushrod to allow for proper adjustment
during final installation.
3. Mark the cut location for the throttle pushrod and remove pushrod from
throttle arm on carburetor and cut throttle pushrod to length.. Use a L bend to
connect the push rod to the servo arm.
3
6mmbit
1
Threadballlinkhalf
Wayontopushrod 2
Lshape 2
3

Thelocation
Ofcutting 1
3


19
Mu ffler Assem bly
4.Assemble the threaded end of pushrod to the servo arm as shown
5.Before mount the servo arm with
screws.Turn on the transmitter and
plug the servo into receiver. Ensure
every channel is neutral.Position the
servo arm 90 degrees to the
servo.Finally,Install the pushrod to the
servo arm.
4 1
 4 2

5
Included