Black Horse Model PC-9 Owner's manual

SPECIFICATION
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
Wingspan : 1,550 mm 61.02 in.
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Length : 1,580 mm 62.20 in.
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Weight : 4,0 kg 8.80 Lbs.
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Radio : 06 channels.


Servo : 08 servos.

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Engine : 61 2 stroke.
91 4 stroke.
MadeinVietnam.
Item code: BH79.
Instruction Manual book

PC-9 - Item code: BH79. Instruction Manual.
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This instruction manual is designed to help you build a great flying aeroplane. Please read this
manualthoroughlybeforestartingassemblyofyour P.C-9.Usethepartslistingbelowtoidentifyall
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
proceduresdesignedtohelpthenewpiloton his way to successful R/C flight. They will also be able
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 your newairplane, do not
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 to protectthe table. Keepacouple of
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
alignedproperlybeforegluing! This will assure
properassembly.P.C-9 ARFishandmadefrom
natural materials, every plane is unique and
minor adjustments may have to be made.
However, you should find the fit superior 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
debonderand acetone. Do not let thesechemi-
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-
installedelevatorhalves.
SUGGESTION
NOTE.

PC-9 - Item code: BH79. INSTRUCTION MANUAL.
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Caution: this model is not a toy!
If you are a beginner to this type of powered
model,pleaseask an experienced modelflyer
forhelp and support.If you attemptto operate
themodelwithoutknowingwhatyou are doing
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
Evenif youhave alreadybuilt alarge number
ofRC models pleaseread right throughthese
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: Blowwarmairover the area
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
bebuiltinaveryshorttime.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
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.
+Theglow plug clip mustbesecurelyattached
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 stand inline with theside of thepropel-
ler.
+ Make engine adjustments from behind the
propeller only. Do not reach around the spin-
ningpropeller.
SAFETY PRECAUTION.
REPLACEMENT SMALL PARTS
B. Wing panel.
C. Fuselage.
A.Cowling.
D . Horizon stabilizer.
F. Aluminium wing dihedral brace.
E. Vertical stabilizer
G. Decal sheet.
C
D E
B
F
A
B
B
G

PC-9 - Item code: BH79. Instruction Manual.
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2.Air retract (Nose gear).
1.Air retracts (Main gear).
3. Wheels.
4.Valve control.
5.Air line sets.
6. Valve one way.
7. 4 way connector.
8. 3 way connector.
9.Airtank
10.Plastic for bottom fuselage.
11.Plastic for top fuselage.
12.Spinner
 1) Install the rubber grommets and brass
eyelets onto the aileron servos.
Flap Aileron
Bottom side
C/Aglue
13.
1.INSTALLING THE AILERON SERVOS.
I. AILERON.
13. Engine plastic.
C/Aglue
1.
9.
6.
2.
3. 4.
5.
8.
7.
10
11
12
15.
14
14.Plastic for rudder.
15.Fueltank.
Top side
C/Aglue
Bottom side
C/Aglue

PC-9 - Item code: BH79. INSTRUCTION MANUAL.
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 2)Using amodeling knife, removethe cov-
ering at possition show below.
C/Aglue
C/Aglue
C/Aglue
C/Aglue
Bottom side
Remove
covering
Secure
Bottom side
Flap Aileron

PC-9 - Item code: BH79. Instruction Manual.
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 4)Drill 1,6mmpilot holes throughthe block
of wood for each of the four mounting screws
provided with the servo.
 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.
 5. Instal servo tray with aileron servo into
the wing as same as picture below.
2x10mm.
3mm x 40mm.
Nilon control clasp.
M3 lock nut.
Aileroncontrolhorn
Bottom side
Thread
Electric way
Bottom side
Secure
2.INSTALLING THE AILERON CONTROL HORN.
Removecovering

PC-9 - Item code: BH79. INSTRUCTION MANUAL.
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Repeat the procedure for the other wing
half.
Installing the aileron linkages as pictures
below.
INSTALLING THE AILERON
LINKAGES.
Elevator
control horn
C/Aglue
M3 M3 lock nut
70mm
C/Aglue

PC-9 - Item code: BH79. Instruction Manual.
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Flap
control horn.
Bottom side
Thread
Electric way
2x10mm.
Secure
INSTALLING THE FLAP SERVO .

PC-9 - Item code: BH79. INSTRUCTION MANUAL.
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Repeat the procedure for the other wing
half.
Installing the flap linkages as pictures
below.
Installing the aileron linkages as pictures
below.
C/Aglue
C/Aglue
M3 M3 lock nut
70mm
INSTALLING THE FLAP
LINKAGES.
INSTALLING THE FLAP CONTROL HORN.
Nilon control clasp.
3 x 40mm
M3 lock nut
Remove covering
INSTALLING AIR RETRACTABLE
LANDING GEAR.
Repeatthe procedure forthe other winghalf.
Bottom of left wing.
Bottom of right wing.
3 x 15mm 3 x 15mm

PC-9 - Item code: BH79. Instruction Manual.
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Secure
Markpoint
3 x 15mm
Secure
4.5 x 38mm

PC-9 - Item code: BH79. INSTRUCTION MANUAL.
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Top side
Bottom side
Locatethealuminiumwingdihedralbrace.
WINGATTACHMENT.
*** Test fit the aluminium tube dihedral brace
into each wing haft. The brace should slide in
easily. If not, use 220 grit sand around the
edges and ends of the brace until it fits prop-
erly.

PC-9 - Item code: BH79. Instruction Manual.
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Secure
See pictures below:
INSTALLING THE ENGINE MOUNT.
4x30mm
4x30mm
Drill a hole 3mm
diameter
4 x 30mm
Secure
Drill a hole 3mm
diameter

PC-9 - Item code: BH79. INSTRUCTION MANUAL.
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Drill a hole
2mmdiameter
 3) Carefully bend the second nylon tube
up at a 45 degree angle (using a cigarette
lighter). This tube will be the vent tube to the
muffler.
 4) Carefullybendthethirdnylon tube down
ata45degreeangle (using a cigarettelighter).
This tubewillbe vent tubetothe fueling valve.
INSTALLING THE STOPPER ASSEMBLY
 1) The stopper has been pre-assembled
at the factory.
 2) Using a modeling knife, cut one length
ofsilicon fuel line(the length ofsilicon fuel line
iscalculatedbyhowtheweightedclunkshould
restabout 8mm awayfrom the rearofthe tank
andmove freely insidethetank). Connect one
FUEL TANK.
end of the line to the weighted clunk and the
otherend to thenylon pick uptube in thestop-
per.
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.
 5. Test fit the stopper assembly into the
tank. It may be necessary to remove some of
the flashing around the tank opening using
amodelingknife. If flashing is present, make
sure none of it falls into the tank.
Vent tube
Fuelfill tube
Fuel pick- up tube

PC-9 - Item code: BH79. Instruction Manual.
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 6. When satisfied with the alignment of the
stopper assembly tighten the 3mm x 20mm
machine screw until the rubber stopper ex-
pandsandsealsthetank opening. Donot over
tighten the assembly as this could cause the
tank to split.
 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,thefrontof the tankshould justabout
touch the back of the firewall.
 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.
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,where it exits thefuselagebehindthe
enginemountingbox and to the rear ofthetank
at the forward bulkhead.
Secure
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.
INSTALLING THE ENGINE.
Locate the long piece of wire used for the
throttlepushrod.Oneend of thewirehasbeen
pre-bend in to a “Z” bend at the factory. This
“Z” bend should be inserted into the throttle
armof the engine whentheengineisfittedonto
theengine mount. Fitthe engine tothe engine
mount using the screws provided.
Fueltank.
130mm

PC-9 - Item code: BH79. INSTRUCTION MANUAL.
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Drill a hole
4mm diameter.
Pushrodwire
Markpoint
4 x 30mm
Secure
Left side

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COWLING.
 1. Slide the fiberglass cowl over the en-
gineandline up thebackedgeof the cowlwith
the marks you made on the fuselage.
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.
3. Slide the cowl back over the engine
andsecure it inplaceusing fourwoodscrews.
See picture below.
4. Installthe mufflerandmufflerextension
onto the engine and make the cutout in the
cowl for muffler clearance. Connect the fuel
and pressure lines to the carburetor, muffler
andfuel filler valve.
Right side
Left side
3 x 12mm
Right side
Trim and cut
Bottom side

PC-9 - Item code: BH79. INSTRUCTION MANUAL.
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Machine screw.
Bottom side
Front view.
INSTALLING THE SPINNER.
spinner cone. The spinner cone is held in
place using two 3mm x 12mm wood screws.
Installthespinnerbackplate, propeller and
3 x 12mm
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.
INSTALLING THE THROTTLE PUSHROD.
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.
Throttle servo
Servo arm.
Connector.

PC-9 - Item code: BH79. Instruction Manual.
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SERVO INSTALLATION.
ELEVATOR INSTALLATION.
 2. Mount the servo to the tray using the
mountingscrewsprovidedwith your radiosys-
tem.
 1. Install the rubber grommets and brass
colletsintotheelevator servo.Testfittheservo
into the servo tray.
See pictures below:
HORIZONTAL STABILIZER.
Secure
Cut
Throttlepushrod
Throttle
servo
C/Aglue

PC-9 - Item code: BH79. INSTRUCTION MANUAL.
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C/Aglue
 1. Draw a center line onto the horizontal
stabilizer. Then slide the horizontal into the
fuselage.
 2 Using a modeling knife, cut away the
covering from the fuselage for the stabilizer
and remove it.
C/Aglue
C/Aglue
Centerline
 3. Markthe shape ofthe vertical onthe left
and right sides onto the horizontal stabilizer
using a left-tip pen.
Remove covering
 4. Remove the stabilizer. Using the lines
youjust drew asa guide,carefully remove the
coveringfrombetween them 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.
Bottom side
Markline

PC-9 - Item code: BH79. Instruction Manual.
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Check to mark sure the wing and stabi-
lizer are paralell. If they are not, lightly sand
theopening in thefuselage for thestabilizer
until the stabilizer is paralell to the wing.
Remove covering
Epoxyglue
C/Aglue
C/Aglue
Elevator andrudderpushrodinstall as same
as the way of aileron pushrod.
ELEVATOR AND RUDDER PUSHROD
INSTALLATION.