Black Horse Model Extra S Owner's manual

Instruction Manual book
SPECIFICATION
Wingspan : 1,600 mm 62.99 in.
Length : 1,500 mm 59.06 in.
Weight : 4.4 kg 9.68 Lbs.
Radio : 06 channels.
Servo : 06 servos
Engine : 20 CC Gas. Speed control: 80A
Electric Motor: RIMFIRE 1.20 Radio :06 channels
Battery : 18.5-22.2V(5-6S LIPO). Propeller: 16 x 6
MadeinVietnam.
Itemcode:BH130

2
EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
This instruction manual is designed to help you build a great flying aeroplane. Please read this
manual thoroughly before starting assembly of your EXTRA 300S. Use the parts listing below to
identify all parts.
WARNING.
Please be aware that this aeroplane is not a toy and if assembled or used incorrectly it is
capable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE YOU
ASSUME ALL RISK & RESPONSIBILITY.
IfyouareinexperiencedwithbasicR/CflightwestronglyrecommendyoucontactyourR/Csupplier
and join your local R/C Model Flying Club. R/C Model Flying Clubs offer a variety of training
proceduresdesignedtohelpthenew pilotonhiswaytosuccessfulR/C flight.Theywillalso beable
to advise on any insurance and safety regulations that may apply.
TOOLS & SUPPLIES NEEDED.
Thick cyanoacrylate glue.
30 minute epoxy.
5 minute epoxy.
Hand or electric drill.
Assorted drill bits.
Modellingknife.
Straight edge ruler.
2mm ball driver.
Phillips head screwdriver.
220 grit sandpaper.
90° square or builder’s triangle.
Wire cutters.
Masking tape & T-pins.
Thread-lock.
Paper towels.
Some more parts.
HARDWAREPACK
COWLING.
Landinggear.....
Toavoid scratching yournew airplane,donot
unwrap the pieces until they are needed for
assembly. Cover your workbench with an old
towel or brown paper, both to protect the air-
craftand toprotect thetable.Keepacoupleof
jars or bowls handy to hold the small parts af-
ter you open the bag.
Pleasetrialfitalltheparts. Makesureyouhave
the correct parts and that they fit and are
alignedproperly beforegluing!Thiswillassure
proper assembly.Extra 300S ARF is hand
made from natural materials, every plane is
unique and minor adjustments may have to
be made. However, you should find the fit su-
perior and assembly simple.
The painted and plastic parts used in this kit
are fuel proof. However, they are not tolerant
of many harsh chemicals including the follow-
ing:paintthinner,C/Aglueaccelerator,C/Aglue
debonderandacetone. Donotletthesechemi-
cals come in contact with the colors on the
covering and the plastic parts.
PARTS LISTING.
FUSELAGE ASSEMBLY
(1) Fuselage.
WING ASSEMBLY
(1) Right wing half with pre-installed
aileron.
(1) Left wing half with pre-installed
aileron.
Tail section assembly
(1) Vertical stabilizer with pre-
installedrudder.
(1) Horizontal stabilizer with pre-
installedelevator halves.
SUGGESTION.
NOTE.

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
Caution: this model is not a toy!
If you are a beginner to this type of powered
model,please askan experiencedmodelflyer
forhelp andsupport.Ifyouattempttooperate
themodel withoutknowingwhat youaredoing
you could easily injure yourself or somebody
else. Please keep your safety and well-being
in mind at all times.
Important: before you start construction
Evenifyou havealready built alarge number
ofRC modelspleaseread rightthrough these
instructions and check all the kit components
against the parts list. We have taken great
trouble to keep construction as simple as
possible, without making any compromises
in the area of safety.
Note regarding the film covering
Minor creases or bubbles may develop in the
film covering due to major fluctuations in
weather conditions (temperature, humidity
etc.); in rare cases you may even find a slight
warp in a component. These minor faults are
in the nature of film-covered built-up wooden
structures, and can easily be corrected using
a heat gun, as commonly used for modelling.
Creases: Blowwarm airoverthearea
and rub down with a soft
cloth.
Caution! do not heat the film more than is
absolutely necessary. If the air or the iron is
too hot, the film may melt and holes may be
formed.
This model is highly pre-fabricated and can
bebuilt inaveryshorttime. However, thework
which you have to carry out is important and
must be done carefully. The model will only
be strong and fly well if you complete your
taskscompetently -so pleaseworkslowlyand
accurately.
When self-tapping screws have to be
screwed into wood, apply a little white glue
to prevent them shaking loose: just squirt
white glue into the hole and fit the screw.
REPLACEMENT LARGE PARTS
Wing warp: Holdthepaneltwisted gently
in the opposite direction to
the warp, and apply warm
air to remove the creases
from the covering.
SAFETY PRECAUTION.
+ This is not a toy
+ Be sure that no other flyers are using your
radio frequency.
+ Do not smoke near fuel
+ Store fuel in a cool, dry place, away from
children and pets.
+ Wear safety glasses.
+Theglowplugclipmustbesecurelyattached
to the glow plug.
+ Do not flip the propeller with your fingers.
+ Keep loose clothing and wires away from
thepropeller.
+ Do not start the engine if people are near.
Donot standinlinewiththesideof thepropel-
ler.
+ Make engine adjustments from behind the
propeller only. Do not reach around the spin-
ningpropeller.
F1.Aluminium tube wing.
A.Cowling. C.Fuselage.
B.Wing panel(Right&Left). D.Horizontal stabilizer. E. Rudder G.Decal sheet.
F2.Aluminium tube horizontal stabilizer

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
REPLACEMENT SMALL PARTS
1) Install the rubber grommets and brass
eyelets onto the aileron servo.
2. Plastic parts for landing gear.
4. Wheels.
3. Wheel pants.
9. Fuel Tank.
8. Tail gear set.
5.Spinner.
6. Plastic parts for rudder pushrod.
1.Aluminium landing gear(Right & left).
Cutthecovering
awayfromtheslot.
Top side.
Bottom side.
Aileron.
5x40mm
3x15mm
3x15mm
3x15mm
5x40mm
4x20mm
8a 8b
3x12mm
3x15mm
7.Electric motor ply of wood .
INSTALLING THEAILERON SERVO.
I.AILERON.

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
Temporary pin to
keep hinge centered.
Assemble then apply drops of thin
C/A to center of hinge,on both sides.
3) Using the thread as a guide and using
masking tape, tape the servo lead to the end
of the thread: carefully pull the thread out.
When you have pulled the servo lead out, re-
move the masking tape and the servo lead
from the thread.
4.Drill1,5mm pilotholes through theblock
of wood for each of the four mounting screws
provided with the servo. Install servo into ai-
leron servo tray as same as picture below.
Thread.
Electric wire
Aileroncontrolhorn
Installaileroncontrolhornassame
aspicturebelow.
5. Instal servo tray with aileron servo into
the wing as same as picture below.
Repeat the procedure for the other wing
half.
Secure.
INSTALLING THE AILERON CONTROLHORN .

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
Repeat the procedure for the other wing
half.
A+B Epoxy
PLUS
A+B Epoxy
PLUS
Aileron
control horn
Installing the aileron linkages as pictures
below.
INSTALLING THE AILERON
LINKAGES.
M3 lock nut M3
60mm
Bottomside.
THERE ARE TWO OPTIONS:
1. ELECTRIC MOTOR
2. ENGINE MOUNT.
1. OPTION 1: ELECTRIC MOTOR
INSTALLING ELECTRIC MOTOR.
3x15mm
Frontview.

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
Remove
wood
Push
Drill a hole
2mm diameter
Drillahole
3mmdiameter
3x 15mm
Secure.

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
Secure.
3x15mm
Frontview.
Battery
See pictures below:
2. OPTION 2: ENGINE MOUNT.
INSTALLING THE ENGINE MOUNT.
Frontview.
Drillahole
6mmdiameter

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
ENGINE MOUNT.
5x80mm
Secure
1. Install one adjustable metal connector
through the third hole out from the center of
one servo arm, enlarge the hole in the servo
arm using a 2mm drill bit to accommodate the
servo connector. Remove the excess mate-
rial from the arm.
Throttle servo
After installing the adjustable metal con-
nector apply a small drop of thin C/A to
the bottom nut. This will prevent the con-
nector from loosening during flight.
INSTALLING THE THROTTLE PUSHROD.
Right side

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
INSTALLING THE STOPPER ASSEMBLY
FUEL TANK.
When the stopper assembly is installed
in the tank, the top of the vent tube should
rest just below the top surface of the tank.
It should not touch the top of the tank.
1.Thestopper hasbeen pre-assembledat
the factory.
2.Using amodeling knife,cut onelength of
siliconfuelline (thelength ofsilicon fuellineis
calculated by how the weighted clunk should
restabout 8mmaway fromtherearofthetank
andmove freelyinside thetank). Connectone
end of the line to the weighted clunk and the
otherend tothenylonpickuptubein thestop-
per.
3.Carefully bendthesecondnylontubeup
ata 45degreeangle (usingacigarettelighter).
This tube will be the vent tube to the muffler.
4.Carefully bendthethirdnylontube down
ata 45degreeangle (usingacigarettelighter).
This tubewill bevent tubeto thefuelingvalve.
Throttle servo
Secure
Throttle pushrod.
Right side
Tygon gas tubing
not included.
Vent tube Fuel pick- up tube
Fuelfilltube

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
5. Test fit the stopper assembly into the
tank. It may be necessary to remove some of
the flashing around the tank opening using
amodeling knife. Ifflashing is present, make
sure none of it falls into the tank.
8. Feed three lines through the fuel tank
compartment and through the pre-drilled hole
in the firewall. Pull the lines out from behind
the engine, while guiding the fuel tank into
place. Push the fuel tank as far forward as
possible,the frontofthetankshould justabout
touch the back of the firewall.
6. When satisfied with the alignment of the
stopper assembly tighten the 3mm x 20mm
machine screw until the rubber stopper ex-
pandsand sealsthetank opening.Do notover
tighten the assembly as this could cause the
tank to split.
7. Using a modeling knife, cut 3 lengths of
fuel line 150mm long. Connect 2 lines to the 2
vent tubes and 1 line to the fuel pickup tube in
the stopper.
9.To securethe fueltank inplace, applya
bead of silicon sealer to the forward area of
thetank, whereit exitsthefuselage behindthe
enginemountingbox andtotherearof thetank
at the forward bulkhead.
Do not secure the tank into place perma-
nently until after balancing the airplane.
You may need to remove the tank to mount
the battery in the fuel tank compartment.
Blow through one of the lines to ensure the
fuel lines have not become kinked inside the
fueltankcompartment.Air shouldflowthrough
easily.
Tie wrap.
Tie wrap.

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
2. While keeping the back edge of the
cowl flush with the marks, align the front of
thecowlwiththecrankshaftofthe engine. The
front of the cowl should be positioned so the
crankshaft is in nearly the middle of the cowl
opening. Hold the cowl firmly in place using
pieces of masking tape.
3. Slide the cowl back over the engine
andsecure itin placeusing fourwood screws.
See picture below.
4. Installthemufflerandmuffler extension
onto the engine and make the cutout in the
cowl for muffler clearance. Connect the fuel
and pressure lines to the carburetor, muffler
andfuel fillervalve.
pushrod choke.
1. Slide the fiberglass cowl over the en-
gineand lineup thebackedgeofthe cowlwith
the marks you made on the fuselage.
Top side
COWLING.
Bottom side.
Trim and cut.
Bottom side.
Right side

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
3x 12mm
Drill a hole
2mm.
Secure.
Drill a hole
2mm.
3 x 12mm
Frontview.
Installthe spinnerbackplate,propellerand
spinner cone. The spinner cone is held in
place using two 3mm x 15mm wood screws.
INSTALLING THE SPINNER.
3mm x 15mm

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
1. Install the rubber grommets and brass
colletsinto theelevatorservo.Testfit theservo
into the servo tray.
2. Mount the servo to the tray using the
mountingscrews providedwithyourradiosys-
tem.
See pictures below:
Secure.
ELEVATOR INSTALLATION.
Secure.
Servoelevator
HORIZONTAL STABILIZER.
Top side
Temporary pin to
keep hinge centered.
Cutthecovering
awayfromtheslot.

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
Assemble then apply drops of thin
C/A to center of hinge,on both sides.
Epoxyglue.
Epoxy
glue
Aluminum tube 8mm
136mm

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
Elevator control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
Elevator control horn.
 Elevatorpushrod installas sameas theway
of aileron pushrod.
165 mm
M3 lock nut
M3
Epoxy
glue.
ELEVATOR CONTROL HORN
INSTALLATION.
A+B Epoxy
Plus glue
Elevator
control horn
ELEVATOR PUSHROD INSTALLATION.

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
Elevator
pushrod
Rudder servo install as same as method of
elevatorservo.
See picture below:
Rudder servo
RUDDER SERVO INSTALLATION.
Bottom side.
Elevator
pushrod Elevator
pushrod
Bottom side.
Rudder servo
See picture below:
Temporary pin to
keep hinge centered.
Cutthecovering
awayfromtheslot.
RUDDER INSTALLATION.

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
Rudder control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
ControlhornofRudder.
Assemble then apply drops of thin
C/A to center of hinge,on both sides.
A +B Epoxy
PLUSglue.
RUDDER CONTROL HORN INSTALLA-
TION.
Bottom side.
Rudder
controlhorn. Rudder
controlhorn

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.


1. Set the tail wheel assembly in place
on the plywood plate. The pivot point of the
tail wheel wire should be even with the rud-
derhingelineand thetailwheel bracketshould
be centered on the plywood plate.


2. Using a pen, mark the locations of the
two mounting screws. Remove the tail wheel
bracket and drill 1mm pilot holes at the loca-
tions marked.
Rudderpush-pullsysteminstallassams
aspicturebelow
M3 clevis ( 4pcs for push - pull system ).
M3locknut.
RUDDER CABLE PUSHROD INSTALLA-
TION.
Rudder cable.
Bottom side.
Rudder cable.
Elevator
Pushrod.
Cut off the excess
cable wire
MOUNTING THE TAIL WHEEL
BRACKET.
3x12mm
3x15mm
Drill a
hole 3mm

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EXTRA 300S- Item code: BH130 INSTRUCTION MANUAL.
Plastic parts of rudder cable.


3. Secure the tail wheel bracket in place
using three 3mm x 15mm wood screws. Be
careful not to overtighten the screws.
Secure
3x15mm.
secure.
C/Aglue.
Bottom side.
Top side.