instruction manual book - blackhorsemodel...pzl-104 wilga - item code: bh 124. instruction manual...

Instruction Manual book

Made in Vietnam.

SPECIFICATION

Wingspan : 2,240 mm 88.19 in. Length : 1,625 mm 63.98 in. Weight : 6,4 kg 14.08Lbs.Parts listing required (not included). Radio : 08 channels. Servo : 09 Standard high torque servos. Engine : 26 - 35cc Gas.

ITEM CODE:BH 124

2

PZL-104 Wilga - Item code: BH 124 . Instruction Manual

This instruction manual is designed to help you build a great flying aeroplane. Please read thismanual thoroughly before starting assembly of your PZL-104 WILGA. Use the parts listing belowto identify all parts.

WARNING.

Please be aware that this aeroplane is not a toy and if assembled or used incorrectly it iscapable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE YOUASSUME ALL RISK & RESPONSIBILITY.

If you are inexperienced with basic R/C flight we strongly recommend you contact your R/C supplierand join your local R/C Model Flying Club. R/C Model Flying Clubs offer a variety of trainingprocedures designed to help the new pilot on his way to successful R/C flight. They will also be ableto 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. Modelling knife. 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.

HARDWARE PACK

COWLING.Landing gear.....

To avoid scratching your new airplane, do notunwrap the pieces until they are needed forassembly. Cover your workbench with an oldtowel or brown paper, both to protect the air-craft and to protect the table. Keep a couple ofjars or bowls handy to hold the small parts af-ter you open the bag.

Please trial fit all the parts. Make sure you havethe correct parts and that they fit and arealigned properly before gluing! This will assureproper assembly.PZL-104 WILGA ARF is handmade from natural materials, every plane isunique and minor adjustments may have tobe made. However, you should find the fit su-perior and assembly simple.The painted and plastic parts used in this kitare fuel proof. However, they are not tolerantof many harsh chemicals including the follow-ing: paint thinner, C/A glue accelerator, C/A gluedebonder and acetone. Do not let these chemi-cals come in contact with the colors on thecovering and the plastic parts.

PARTS LISTING.

FUSELAGE ASSEMBLY (1) Fuselage.

WING ASSEMBLY

(1) Right wing half with pre-installedaileron.

(1) Left wing half with pre-installedaileron.

Tail section assembly

(1) Vertical stabilizer with pre-installed rudder.

(1) Horizontal stabilizer with pre-installed elevator halves.

SUGGESTION.

NOTE.

3


Caution: this model is not a toy!If you are a beginner to this type of poweredmodel, please ask an experienced model flyerfor help and support. If you attempt to operatethe model without knowing what you are doingyou could easily injure yourself or somebodyelse. Please keep your safety and well-beingin mind at all times.Important: before you start constructionEven if you have already built a large numberof RC models please read right through theseinstructions and check all the kit componentsagainst the parts list. We have taken greattrouble to keep construction as simple aspossible, without making any compromisesin the area of safety.Note regarding the film coveringMinor creases or bubbles may develop in thefilm covering due to major fluctuations inweather conditions (temperature, humidityetc.); in rare cases you may even find a slightwarp in a component. These minor faults arein the nature of film-covered built-up woodenstructures, and can easily be corrected usinga heat gun, as commonly used for modelling.Creases: Blow warm air over the area

and rub down with a softcloth.

When self-tapping screws have to bescrewed into wood, apply a little whiteglue to prevent them shaking loose: justsquirt white glue into the hole and fit thescrew.

+ This is not a toy + Be sure that no other flyers are using yourradio frequency. + Do not smoke near fuel + Store fuel in a cool, dry place, away fromchildren 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 fromthe propeller. + 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 thepropeller only. Do not reach around the spin-ning propeller.

SAFETY PRECAUTION.

Wing warp: Hold the panel twistedgently in the oppositedirection to the warp, andapply warm air to removethe creases from thecovering.

Caution! do not heat the film more than isabsolutely necessary. If the air or the iron istoo hot, the film may melt and holes may beformed.This model is highly pre-fabricated and canbe built in a very short time. However, the workwhich you have to carry out is important andmust be done carefully. The model will onlybe strong and fly well if you complete yourtasks competently - so please work slowlyand accurately.

REPLACEMENT LARGE PARTS

E.G.

A.

B1.

D2.

C.

B2.

D1.

F.

A. Cowling.B. Wing panel.

C. Fuselage.D. Horizontal stabilizer.

E.Rudder.

G. Decal sheet .F. Aluminium wing dihedral brace.

4


1. Install the rubber grommets and brasseyelets onto the aileron servo.

2. Using a modeling knife, remove the cov-ering servo tray.

REPLACEMENT SMALL PARTS

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.

d. c.

a.

9.

a.

c.b.

2.

b.

6.

10.

8.

7.

3.

B. A

4.

ab a

b

c

Bottom side

AileronFlap.

Servo tray.

Remove covering

1.INSTALLING THE AILERON SERVO.

I. SERVO

5


3. Drill 1,5mm pilot holes through the blockof wood for each of the four mounting screwsprovided with the servo. Install servo into ai-leron servo tray as same as picture below.

4. Using the thread as a guide and usingmasking tape, tape the servo lead to the endof the thread: carefully pull the thread out.When you have pulled the servo lead out, re-move the masking tape and the servo leadfrom the thread.

Secure.

Thread.

Electricwire.

Servo tray.

5. Instal servo tray with aileron servo intothe wing as same as picture below.

2x10mm.

Secure.

Repeat the procedure for the other winghalf.

Aileron control horn

Install aileron control horn as sameas picture below.

2.INSTALLING THE AILERON CONTROL HORN.

6


A+B EpoxyPLUS

Installing the aileron linkages as pictures below.

1. INSTALLING THE FLAP SERVO .

II. FLAP

Control hornof the aileron

Attach the clevis to the outer hole in the con-trol horn.

3.INSTALLING THE AILERONLINKAGES .

M3.

65 mm

M3.

M3 lock nut.

2x10mm.

Thread

Electricwire

A+B EpoxyPLUS

Flap.

Flap.

7


Secure.

2. INSTALLING THE FLAP CONTROL HORN.


Control horn of the flap

Installing the flap linkages as pictures below.

A+B EpoxyPLUS

Flap.

Top side

AileronFlap

Bottom side

M3.

65mm

M3.

M3 lock nut.

3.INSTALLING THE FLAPLINKAGES.

Control hornof the flap

8



See pictures below:

5x 90mm

INSTALLING THE ENGINE MOUNT.

Drill a hole6 mm diameter

Secure.

Engine 30cc.

9


1. Install one adjustable metal connectorthrough the third hole out from the center ofone servo arm, enlarge the hole in the servoarm using a 2mm drill bit to accommodate theservo connector. Remove the excess mate-rial from the arm. After installing the adjustable metal con-nector apply a small drop of thin C/A tothe bottom nut. This will prevent the con-nector from loosening during flight.

INSTALLING THE THROTTLE - CABLE.

Throttle servo

Throttle servo

INSTALLING THE STOPPER ASSEMBLY

1) The stopper has been pre-assembledat the factory.

2) Using a modeling knife, cut one lengthof silicon fuel line (the length of silicon fuel lineis calculated by how the weighted clunk shouldrest about 8mm away from the rear of the tankand move freely inside the tank). Connect one

end of the line to the weighted clunk and theother end to the nylon pick up tube in the stop-per. 3) Carefully bend the second nylon tubeup at a 45 degree angle (using a cigarettelighter). This tube will be the vent tube to themuffler. 4) Carefully bend the third nylon tube downat a 45 degree angle (using a cigarette lighter).This tube will be vent tube to the fueling valve.

Throttle - cable

FUEL TANK.

10


When the stopper assembly is installed in thetank, the top of the vent tube should rest justbelow the top surface of the tank. It should nottouch the top of the tank.

5. Test fit the stopper assembly into thetank. It may be necessary to remove some ofthe flashing around the tank opening usinga modeling knife. If flashing is present, makesure none of it falls into the tank.

Tygon gas tubing not included.

Vent tube Fuel pickup tube

Fuel fill tube

6. When satisfied with the alignment of thestopper assembly tighten the 3mm x 20mmmachine screw until the rubber stopper ex-pands and seals the tank opening. Do not overtighten the assembly as this could cause thetank to split.

7. Using a modeling knife, cut 3 lengths offuel line 150mm long. Connect 2 lines to the 2vent tubes and 1 line to the fuel pickup tube inthe stopper. 8. Feed three lines through the fuel tankcompartment and through the pre-drilled holein the firewall. Pull the lines out from behindthe engine, while guiding the fuel tank intoplace. Push the fuel tank as far forward aspossible, the front of the tank should just abouttouch 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 mountthe battery in the fuel tank compartment.

Blow through one of the lines to ensurethe fuel lines have not become kinked insidethe fuel tank compartment. Air should flowthrough easily.

9. To secure the fuel tank in place, apply abead of silicon sealer to the forward area ofthe tank, where it exits the fuselage behind theengine mounting box and to the rear of the tankat the forward bulkhead.

Secure.

Fuel tank.

11


Left side.

Choke servo

INSTALATION CHOKE SERVO.

Choke servoconnector

Secure.

Tie wrap

Electric power.

Right side.

12


PARTS REQUIRED

MAIN GEAR INSTALATION.

1) Assemble and mounting the wheel pantsas shown in the following pictures.

4x 15mm

C/A glue.

Secure.

13


Secure.

3x 8mm3x 8mm

3x 10mm

3x10mm

Landing gear struts.

3x25mm16mmAluminium 10mm

14


3x 10mm

Secure.

3x 25mm

Secure.

5x 40mm

Bottom side.

Bottom side.

Secure.

15


10mm.

30mm.

Mark line

Cut.

Straight line.

5mm

cut.

cut.

Pus

h in

to.

Push.

16


20mm

5mm

Mark point 1

Mark point

30mm

5mm

Markpoint 2

Drill a hole2.5mm diameter

Make a tero hole drill3mm diameter.


17


Secure.

Secure.

3x 6mm

Make a tero holedrill 3mm diameter.

Front view.

Repeat the procedure for the behindside right landing gear

Repeat the procedure for all left sidelanding gear

Plastic part bottom fuselage.

18


1. Slide the fiberglass cowl over the en-gine and line up the back edge of the cowl withthe marks you made on the fuselage.

2. While keeping the back edge of thecowl flush with the marks, align the front ofthe cowl with the crankshaft of the engine. Thefront of the cowl should be positioned so thecrankshaft is in nearly the middle of the cowlopening. Hold the cowl firmly in place usingpieces of masking tape.

COWLING.

Top side.

C/A glue.

Bottom side

Trim andcut.

Bottom side.

19


Bottom side.

Mark point


Top side.

3 x 12mm

Secure.

4. Install the muffler and muffler extensiononto the engine and make the cutout in thecowl for muffler clearance. Connect the fueland pressure lines to the carburetor, mufflerand fuel filler valve.

3. Slide the cowl back over the engineand secure it in place using three screws. Seepicture below.

Machine screw.

Front view

20


1. Install the rubber grommets and brasscollets into the elevator servo. Test fit theservo into the servo tray.

2. Mount the servo to the tray using themounting screws provided with your radiosystem.

Secure.

Elevator servo

SERVO INSTALLATION

ELEVATOR INSTALLATION

HORIZONTAL STABILIZER.

Horizontal stabilizer installation See picture below.

Elevator servo

21


Rudder push-pull cable.

Aluminium tube.

A+B Epoxyplus glue.

263 mm

12 mm Aluminium tube.

3x 15mm.

22


Elevator control horn install as same as theway of aileron control horn.Please see pictures below.

ELEVATOR CONTROL HORN ANDELEVATOR PUSHROD INSTALLATION.

Control horn of Elevator.

A+BEpoxy Plus

Secure.

Bottom side.

3x 10mm

Secure

A+B epoxyplus glue.

23


Secure.

Secure.

Horizontal Stabilizer Struts.

3x 10mm 3x 10mm

Rudder servo install as same as method ofelevator servo. See picture below:

VERTICAL STABILIZER INSTALLATION.

Rudder Servo.

Rudder Servo.

Elevator servo.

Bottom side.

Aluminium

24


Push

Aluminium

Cut.

A+ B EpoxyPlus.

Rudder control horn install as same as theway of aileron control horn. Please see pic-tures below.

Control horn of Rudder.

A+B EpoxyPlus.

RUDDER CONTROL HORNINSTALLATION.

25


C/A glue.

a

c

b

Plastic parts for vertical.

Rudderpushrod.

Rudder pushrod install as same as the wayof aileron pushrod.

RUDDER PUSHROD INSTALLATION.

Ruddercontrol horn.

Secure

3x 10 mm

26


C/A glue.

C/A glue.

MOUNTING THE TAIL WHEELBRACKET.

1. Set the tail wheel assembly in placeon the plywood plate. The pivot point of thetail wheel wire should be even with the rud-der hinge line and the tail wheel bracket shouldbe centered on the plywood plate.

2. Using a pen, mark the locations of thetwo mounting screws. Remove the tail wheelbracket and drill 1mm pilot holes at the loca-tions marked.

Top side.

3x 15mm

27


Secure.

Cut.

Bottom side

Servo tailgear.

Servo tailgear.

1. Cut out the switch hole using a modelingknife. Use a 2mm drill bit and drill out the twomounting holes through the fuselage side.

2. Secure the switch in place using thetwo machine screws provided with the radiosystem.

Switch

INSTALLING THE SWITCH.

28


Battery.

1. Plug the servo leads and the switchlead into the receiver. You may want to plugan aileron extension into the receiver to makeplugging in the aileron servo lead easierwhen you are installing the wing . Plug thebattery pack lead into the switch.

2. Wrap the receiver and battery pack inthe protective foam to protect them from vi-bration. Use a rubber band or masking tape tohold the foam in place.

INSTALLING THE RECEIVER AND BATTERY.

Switch ofEngine

Switch of Receiver

3. Position the battery pack and receiverbehind the fuel tank. Use two tie wraps to holdthe battery and receiver securely in place aspictures below

Do not permanently secure the receiver andbattery until after balancing the model.

4. Using a 2mm drill bit, drill a hole throughthe side of the fuselage, near the receiver, forthe antenna to exit.

Receiver.

Battery

See pictures below:

INSTALLING THE COCKPIT.

b. a.

d. c.

B. A.

29


A+B EpoxyPLUS.

E p o x yglue.

Secure.

30


Secure.

close.

Secure.

Locate the aluminium wing dihedral brace.

*** Test fit the aluminium tube dihedral braceinto each wing haft. The brace should slide ineasily. If not, use 220 grit sand around theedges and ends of the brace until it fits prop-erly.

aluminium 25mm

810 mm.

WING ATTACHMENT.

3x 10mm

31


Left wing.

Top side

Secure.

Top side

Secure

3x 10mm

Right wing.

32


With the wing attached to the fuselage, allparts of the model installed ( ready to fly), andempty fuel tanks, hold the model at themarked balance point with the stabilizer level.

Lift the model. If the tail drops when youlift, the model is “tail heavy” and you mustadd weigh* to the nose. If the nose drops, itis “nose heavy” and you must add weight* tothe tail to balance.

*If possible, first attempt to balance the modelby changing the position of the receiver bat-tery and receiver. If you are unable to obtaingood balance by doing so, then it will be nec-essary to add weight to the nose or tail toachieve the proper balance point.

Accurately mark the balance point on the topof the wing on both sides of the fuselage. Thebalance point is located 71mm back from theleading edge. This is the balance point atwhich your model should balance for your firstflights. Later, you may wish to experiment byshifting the balance up to 10mm forward orback to change the flying characteristics.Moving the balance forward may improve thesmoothness and arrow- like tracking, but itmay then require more speed for take offand make it more difficult to slow down forlanding. Moving the balance aft makes themodel more agile with a lighter and snappier”feel”. In any case, please start at the loca-tion we recommend .

1) It is critical that your airplane be bal-anced correctly. Improper balance will causeyour plane to lose control and crash.

THE CENTER OF GRAVITY IS LOCATED71MM BACK FROM THE LEADING EDGEOF THE WING.

2) Mount the wing to the fuselage. Using acouple of pieces of masking tape, place themon the top side of the wing 71mm back fromthe leading edge, at the fuselage sides.3. Turn the airplane upside down. Placeyour fingers on the masking tape and care-fully lift the plane .

BALANCING.

1) We highly recommend setting up aplane using the control throws listed.

2) The control throws should be meas-ured at the widest point of each control sur-face.

3) Check to be sure the control surfacesmove in the correct directions.

Ailerons : 15mm up 15mm down

Flap : 40 mm

Elevator : 20mm up 20mm down

Rudder : 25mm right 25 mm left

1) Completely charge your transmitter andreceiver batteries before your first day of fly-ing.2) Check every bolt and every glue joint inyour plane to ensure that everything is tightand well bonded.

3) Double check the balance of theairplane.4) Check the control surface.

5) Check the receiver antenna . It shouldbe fully extended and not coiled up inside thefuselage.

6) Properly balance the propeller.

We wish you many safe and enjoyableflights with your PZL-124 WILGA.

Flap control

Aileron control

Elevator control

Rudder control

15mm15mm

20mm

20mm

40mm

25mm25mm

CONTROL THROWS.

PRE-FLIGHT CHECK.

instruction manual book - blackhorsemodel...pzl-104 wilga - item code: bh 124. instruction manual...

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