Black Horse Model Extra 330L Owner's manual

Instruction Manual book
SPECIFICATION
MadeinVietnam.
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Wingspan : 1,650mm 64.96 in.
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Length : 1,460mm 57.48 in.
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Weight : 3.8kg 8.38 Lbs.
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Radio : 05 channels.
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Servo : 05 servos.
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Engine : 75 2 stroke
91 4 stroke

EXTRA 330L . Instruction Manual
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This instruction manual is designed to help you build a great flying aeroplane. Please read this
manual thoroughly before starting assembly of your EXTRA 330L 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
aircraftand toprotect thetable. Keepa couple
of jars or bowls handy to hold the small parts
after you open the bag.
Pleasetrialfitalltheparts. Makesureyouhave
the correct parts and that they fit and are
alignedproperly beforegluing!Thiswillassure
proper assembly. EXTRA 330L 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
following: paint thinner, C/A glue accelerator,
C/A glue debonder and acetone. Do not let
these chemicals 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.

EXTRA 330L. INSTRUCTION MANUAL
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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.
Wing warp: Hold the panel twisted
gently in the opposite
direction to the warp, and
apply warm air to remove
the creases from the
covering.
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 inavery shorttime.However,the work
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
tasks competently - so please work slowly
and 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.
+ 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.
+Theglowplug clipmustbesecurely attached
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.
SAFETY PRECAUTION.
REPLACEMENT LARGE PARTS
B. Wing panel.
C. Fuselage.
A.Cowling.
E . Horizon stabilizer.
G. Aluminium wing dihedral brace.
F. Vertical stabilizer
A.
B. B.
C.
F. E.
G.
D. Fuselage top hatch.
D.

EXTRA 330L . Instruction Manual
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 1. Install the rubber grommets and brass
eyelets onto the aileron servo.
INSTALLING THE AILERON SERVOS.
C/Aglue
C/Aglue
C/Aglue
C/Aglue
 2.Usinga modelingknife,remove thecov-
ering servo tray.
Remove covering

EXTRA 330L. INSTRUCTION MANUAL
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 4. Drill 1,5mm pilot holes through the block
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.
 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.
Thread
Electric wire
ControlhornofAileron
3 x 50mm.
Nilon control clasp.M3lock nut.
INSTALLINGTHEAILERON CONTROLHORN.

EXTRA 330L . Instruction Manual
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Removecovering
Repeat the procedure for the other wing
half.
Installing the aileron linkages as pictures
below.
INSTALLING THE AILERON
LINKAGES.
M3 M3 lock nut

EXTRA 330L. INSTRUCTION MANUAL
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Repeat the procedure for the other wing
half.
INSTALLING THE ENGINE MOUNT.
See pictures below:
Cut
Drill a hole 4mm diameter
C/A glue
ENGINE MOUNT.
4x30mm
.
4x30mm

EXTRA 330L . Instruction Manual
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 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.
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. The stopper has been pre-assembled at
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 bendthe secondnylon tubeup
ata 45degreeangle (usingacigarettelighter).
This tube will be the vent tube to the muffler.
 4.Carefully bendthe thirdnylon tubedown
ata 45degreeangle (usingacigarettelighter).
This tubewill bevent tubeto thefuelingvalve.
INSTALLING THE STOPPER ASSEMBLY
FUEL TANK.
Vent tube Fuel pick- up tube
Fuelfilltube

EXTRA 330L. INSTRUCTION MANUAL
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Blow through one of the lines to ensure
the fuel lines have not become kinked inside
the fuel tank compartment. Air should flow
througheasily.
 9. To secure the fuel tank in place, apply a
bead of silicon sealer to the forward area of
thetank, whereit exitsthefuselage behindthe
enginemountingbox andtotherearofthetank
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.
Locate the long piece of wire used for the
throttlepushrod. Oneendofthewire hasbeen
pre-bend in to a “Z” bend at the factory. This
“Z” bend should be inserted into the throttle
armofthe enginewhentheengine isfittedonto
theengine mount.Fittheengineto theengine
mount using the screws provided.
INSTALLING THE ENGINE.
120mm
Fueltank
Markpoint
Drill a hole 4mm diameter

EXTRA 330L . Instruction Manual
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Pushrod wire
4 x 30mm
Secure
Pushrod wire
Left side
Right side

EXTRA 330L. INSTRUCTION MANUAL
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 1. Slide the fiberglass cowl over the en-
gineand lineup thebackedgeofthe cowlwith
the marks you made on the fuselage.
COWLING. 2. While keeping the back edge of the
cowl flush with the marks, align the front of
thecowlwiththecrankshaftoftheengine. 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.
4. Installthemufflerandmufflerextension
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.
3. Slide the cowl back over the engine
andsecure itin placeusing fourwood screws.
See picture below.
Trim and cut
Bottom side
Right side Bottom side
3 x 10mm
Right side

EXTRA 330L . Instruction Manual
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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
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.
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.
Servo arm.
Connector.
Throttle servo

EXTRA 330L. INSTRUCTION MANUAL
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Secure
Cut
Throttle servo
 1. Install the rubber grommets and brass
colletsintothe elevatorservo.Testfit theservo
into the servo tray.
 2. Mount the servo to the tray using the
mountingscrews providedwithyourradiosys-
tem.
ELEVATOR INSTALLATION.
HORIZONTALSTABILIZER.
C/Aglue
Top side

EXTRA 330L . Instruction Manual
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 2. Draw a center line onto the horizontal
stabilizer. Then slide the horizontal into the fu-
selage.
See pictures below:
 1) Using a modeling knife, cut away the
covering from the fuselage for the stabilizer
and remove it.
C/Aglue
C/Aglue
C/Aglue
Remove covering.
 3. Marktheshape ofthe verticalon theleft
and right sides onto the horizontal stabilizer
using a felt-tip pen
 4. Remove the stabilizer. Using the lines
youjustdrew asa guide,carefully removethe
coveringfrom betweenthem usingamodeling
knife.
When cutting through the covering to
remove it, cut with only enough pressure
to only cut through the covering it’s self.
Cutting into the balsa structure may
weaken it. This could lead to possible fail-
ure during flight
Markpoint
Bottom side
center line

EXTRA 330L. INSTRUCTION MANUAL
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Check to mark sure the wing and stabi-
lizer are paralell. If they are not, lightly sand
theopening inthefuselageforthe stabilizer
until the stabilizer is paralell to the wing.
 5. When you are sure that everything is
aligned correctly, mix up a generous amount
of 30 minute epoxy. Apply a thin layer to the
topand bottomofthestabilizermountingarea
and to the stabilizer mounting platform sides
inthefuselage.Slidethestabilizerinplaceand
re-align. Double check all of your measure-
ments one more time before the epoxy cures.
Remove any excess epoxy using a paper
towel and rubbing alcohol and hold the stabi-
lizer in place with T-pins or masking tape.
Remove covering
 6. After the epoxy has fully cured, re-
move
the masking tape or T-pins used to hold the
stabilizer in place and carefully inspect the
glue joints. Use more epoxy to fill in any
gaps that were not filled previously and
clean up the excess using a paper towel and
rubbingalcohol.
Epoxyglue
C/A glue
Bottom side
C/A glue
Top side

EXTRA 330L . Instruction Manual
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Remove covering
Elevator control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
ELEVATOR CONTROL HORN INSTALLA-
TION.
3 x 50mm.
Nilon control clasp.M3lock nut.
Elevator pushrodinstall assame asthe way
of aileron pushrod.
ELEVATOR PUSHROD INSTALLATION.
Elevator
control horn
Elevator
pushrod

EXTRA 330L. INSTRUCTION MANUAL
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Cut
Secure
Elevator
pushrod
Elevator
pushrod
Bottom side
Secure
Bend and
cut after
Top side

EXTRA 330L . Instruction Manual
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VERTICAL INSTALLATION.
Hinge.
C/Aglue
C/Aglue
C/Aglue
Hingeslot.
Elevatorservo
Elevator pushrod
Vertical stabilizer installation
See picture below.
 1. Using a modeling knife cut away the
coveringfrom theendof fuselage fortherud-
derhinge.

EXTRA 330L. INSTRUCTION MANUAL
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 4. Now, remove the rudder and using a
modeling knife, carefully cut just inside the
marked lines and remove the film of the rud-
der. Just as you did with the horizontal stabi-
lizer, make sure you only press hard enough
to cut the film, not the balsa rudder.
 Also carefully remove the covering from
the horizontal fin as below the lines which
you drew as same picture below.
Remove covering
Markpoint
Remove covering
 5. Put the vertical stabilizer back in
place. Using a triangle, check to ensure
that the vertical stabilizer is aligned 90 de-
gree to the horizontal stabilizer.
Epoxyglue
 6) When you are sure that everything is a
aligned correctly, mix up a generous amount
of 30 minute epoxy. Apply a thin layer to the
slot in the mounting platform and to the verti-
cal stabilizer mounting area. Apply epoxy to
the lower rudder hinge. Set the stabilizer in
place and re-align. Double check all of your
measurements once more before the epoxy
cures. Remove any excess epoxy using a
paper towel and rubbing alcohol and hold the
stabilizerin placewithT-pinsormaskingtape.
Allow the epoxy to fully cure before proceed-
ing.
Epoxyglue
 3. Mark the shape of the vertical on the
leftand rightside of therudder onto thehori-
zontal stabilizer using a felt-tip pen.
 2. Put the rudder into the fuselage as
same as picture below.

EXTRA 330L . Instruction Manual
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C/Aglue
C/Aglue
ControlhornofRudder.
Rudder control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
Niloncontrol clasp.
M3locknut.
3mmx60mm.
RUDDER CONTROL HORN INSTALLA-
TION.
Rudderpush-pullsysteminstallassams
aspicturebelow
 1. Rudder pushrod install as same as
the way of aileron control horn.
 2. Rudder push - pull system install as
same as picture below.
M3 clevis ( 4pcs for push - pull system ).
M3locknut.
RUDDER PUSHROD INSTALLATION.
Remove covering