Black Horse Model PZL-104 WILGA BH 124 Owner's manual

Instruction Manual book
MadeinVietnam.
SPECIFICATION


Wingspan : 2,240 mm 88.19 in.


Length :


Weight : 6,4 kg 14.08Lbs.


Radio : 08 channels.


Servo : 09 servos.
1,625mm 63.98 in.


Engine : 26 - 35cc Gas.
ITEM CODE:BH 124

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PZL-104 Wilga - Item code: BH 124 . 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 PZL-104 WILGA. 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.Theywillalsobeable
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 yournewairplane,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 toprotectthetable.Keepacoupleof
jars or bowls handy to hold the small parts af-
ter you open the bag.
Pleasetrialfitall theparts. Makesureyouhave
the correct parts and that they fit and are
alignedproperly beforegluing!Thiswill assure
properassembly.PZL-104 WILGAARFishand
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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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
Caution: this model is not a toy!
If you are a beginner to this type of powered
model,please askan experiencedmodelflyer
forhelpandsupport.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 havealreadybuilt alarge number
ofRCmodelspleaseread 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.
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.
+The glow plug clip must be securely at-
tached 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.
Do not stand in line with the side of the pro-
peller.
+ Make engine adjustments from behind the
propeller only. Do not reach around the spin-
ningpropeller.
SAFETY PRECAUTION.
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
bebuiltina veryshorttime. 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.
REPLACEMENT LARGE PARTS
C. Fuselage.
D. Horizontal stabilizer. E.Rudder.
B. Wing panel.
A. Cowling. G. Decal sheet .
F.Aluminium wing dihedral brace.
E. G.
A.
B.
D.
C.
B.
D.
F.

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
 1. Install the rubber grommets and brass
eyelets onto the aileron servo.
1.INSTALLING THE AILERON SERVO.
2.Using amodeling knife,remove thecov-
ering servo tray.
REPLACEMENT SMALL PARTS
I. SERVO Servo tray.
Removecovering
Bottom side
Aileron
Flap.
1. Aluminium landing gear.
2. Plastic parts for landing gear.
4. Pilot doll.
3. Chairs
8. Plastic parts bottom fuselage.
7. Tail gear set.
10. Plastic parts for vertical
9. Fuel Tank.
5. Wheels.
6. Landing gear struts
b.
a.
1
5.
4. 3.
1.
9.
a.
c.
b.
2.
2.
6.
10.
8.
7.
3.
B. A
4.

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
3.Drill1,5mmpilotholes throughthe 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.
4. 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.
Secure.
Thread.
Electric
wire.
Servo tray.
5. Instal servo tray with aileron servo into
the wing as same as picture below.
2x10mm.
Secure.
Repeat the procedure for the other wing
half.
Aileroncontrolhorn
Installaileroncontrolhornassame
aspicturebelow.
2.INSTALLING THEAILERON CONTROL HORN.

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
A+B Epoxy
PLUS
Installing the aileron linkages as pictures
below.
1. INSTALLING THE FLAP SERVO .
II. FLAP
Control horn
of the aileron
Attach the clevis to the outer hole in the con-
trol horn.
3.INSTALLING THE AILERON
LINKAGES .
M3. 65 mm M3.
M3 lock nut.
2x10mm.
Thread
Electric
wire
A+B Epoxy
PLUS
Flap.
Flap.

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
Secure.
2. INSTALLING THE FLAPCONTROL HORN.
Repeat the procedure for the other wing
half.
Control horn of the flap
Control horn
of the flap
Installing the flap linkages as pictures
below.
3.INSTALLING THE FLAP
LINKAGES.
M3. 65mm M3.
M3 lock nut.
Repeat the procedure for the other wing
half.
A+B Epoxy
PLUS AileronFlap
Bottom side
Top side
Flap.

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
See pictures below:
INSTALLING THE ENGINE MOUNT.
Drill a hole
6 mm diameter
5x 90mm
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 - CABLE.
Throttle servo
Secure.
Engine 30cc.

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
Throttle - cable
INSTALLING THE STOPPER ASSEMBLY
1) The stopper has been pre-assembled
at the factory.
2) Using a modeling knife, cut one length
ofsiliconfuelline(thelengthofsiliconfuel line
iscalculatedbyhow theweightedclunk should
restabout 8mmawayfromtherearofthetank
andmove freelyinside thetank). Connectone
end of the line to the weighted clunk and the
otherendtothenylonpickuptubein thestop-
per.
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) Carefullybend thethirdnylon tubedown
ata 45degreeangle (usingacigarettelighter).
This tubewill bevent tubeto thefuelingvalve.
FUEL TANK.
When the stopper assembly is installed in the
tank, the top of the vent tube should rest just
belowthetopsurfaceof thetank. Itshould 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
amodeling knife. Ifflashing is present, make
sure none of it falls into the tank.
Tygon gas tubing not included.
Vent tube Fuel pick- up tube
Fuelfilltube
Throttle servo

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
6. When satisfied with the alignment of the
stopper assembly tighten the 3mm x 20mm
machine screw until the rubber stopper ex-
pandsand sealsthetankopening. Donotover
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.
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.
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 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 exitsthefuselagebehind the
enginemountingboxandtotherearof thetank
at the forward bulkhead.
Secure.
INSTALATION CHOKE SERVO.
Choke servo
Choke servo
connector
Fueltank.

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
PARTSREQUIRED
MAIN GEAR INSTALATION.
1)Assembleandmounting thewheelpants
as shown in the following pictures.
4x 15mm
Tie wrap
Secure.
Leftside.
Electric power.
Right side.

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
C/Aglue.
Secure.
Secure.
3x 8mm
3x 8mm
3x 10mm
3x10mm
Landing gear struts.

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
3x 10mm
3x25mm
16mm
Aluminium 10mm
Secure.
3x 25mm
Secure.
5x 40mm
Bottom side.

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
Bottom side.
Secure.
10mm.
30mm.
Markline
Cut.
Straight line.
5mm

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
cut.
cut.
20mm
5mm
Mark point 1
Mark point
30mm
5mm
Mark
point 2
Push in to.
Push.

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
Secure.
Secure.
3x 6mm
Drill a hole
2.5mm diameter
Make a tero hole drill
3mm diameter.
Make a tero hole
drill3mmdiameter.
Drill a hole
2.5mm diameter

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
Frontview.
Repeat the procedure for the behind
side right landing gear
Repeat the procedure for all left side
landing gear
Plasticpartbottomfuselage.
1. Slide the fiberglass cowl over the en-
gineand lineup thebackedgeofthe 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
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.
COWLING.
Top side.
C/A glue.
Bottom side

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
Bottom side.
Markpoint
Drill a hole
2.5mm diameter
Top side.
Trim and
cut.
Bottom side.

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
3 x 12mm
Secure.
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
andfuelfillervalve.
3. Slide the cowl back over the engine
andsecureitinplaceusingthree screws.See
picture below.
Machine screw.
Front view
1. Install the rubber grommets and brass
collets into the elevator servo. Test fit the
servo into the servo tray.
2. Mount the servo to the tray using the
mounting screws provided with your radio
system.
Secure.
Elevator servo
SERVO INSTALLATION
ELEVATOR INSTALLATION

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PZL-104 Wilga - Item code: BH 124 . Instruction Manual
HORIZONTAL STABILIZER.
Horizontal stabilizer installation
See picture below.
Elevator servo
Rudder push-
pull cable.
Aluminiumtube.
A+B Epoxy
plus glue.
263 mm
12 mm
Aluminiumtube.