Black Horse Model YAK 54 Betriebsanleitung

INSTRUCTION MANUAL BOOK

SPECIFICATION

Made in Vietnam.



 Wingspan: 1,440 mm 56.69 in.



Length: 1,250 mm 49.21 in.



Weight: 2.4-26 kg 5.28-5.72 lbs.

Parts listing required (not included).



Radio: 04 channels.



Servo: 04-05 servos, size:(21 x 42)mm.



Engine: 46 cu.in 2 stroke; 52 cu.in 4 stroke.



Motor: Brushless outrunner 1000-1800W, 800KV.



Propeller: Suit with your engine.

Recommended Motor and Battery set up



Motor: RIMFIRE.46 (not included).



Lipo cell: 6cells 4,000-5,000mAh (not included).



ESC: 60A (not included).



Receiver battery: 4.8-6V/ 800-1200mAh NiMH.

YAK 54 - ITEM CODE: BH47-A.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 YAK 54. 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

proceduresdesignedtohelpthenewpilotonhiswaytosuccessfulR/Cflight.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.

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 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-

craft and to protect the table. Keep a 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

aligned properly before gluing! This will as-

sure proper assembly. YAK 54 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: 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-

installed rudder.

(1) Horizontal stabilizer with pre-

installed elevator halves.

SUGGESTION.

NOTE.

YAK 54 - ITEM CODE: BH47-A.Instruction Manual

+ 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 clipmustbesecurelyattached

to the glow plug.

+ Do not flip the propeller with your fingers.

+ Keep loose clothing and wires away from

the 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 the

propeller only. Do not reach around the spin-

ning propeller.

Caution: this model is not a toy!

If you are a beginner to this type of powered

model,please ask anexperienced model flyer

forhelp and support. If you attempt to operate

themodel withoutknowing whatyouare 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 you have already built a large number

ofRC models please read right through 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 airoverthe 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

bebuilt ina veryshorttime. 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 pleaseworkslowly and

accurately.

When self-tapping screws have to be

screwedinto wood, apply a little white glue

to prevent them shaking loose: just squirt

white glue into the hole and fit the screw.

SAFETY PRECAUTION.

REPLACEMENT LARGE PARTS

REPLACEMENT SMALL PARTS

6. Fuel Tank.

3. Wheel pants.

2. Wheels

1. Aluminium landing gear.

4. Electric-engine mount.

7. Spinner.

5.Tail gear

C. Fuselage.

E.Vertical stabilizer

D.Horizontal stabilizer

B.Wings panel(B1&B2).

A. Cowling

F. Aluminium tube wing

K.Pilot

YAK 54 - ITEM CODE: BH47-A.Instruction Manual

 1. Install the rubber grommets and brass

eyelets onto the aileron servo.

INSTALLING THE AILERON SERVOS.

Top side

aileron

Bottom side.

2.Usinga modeling knife, remove the cov-

ering servo tray.

Temporary pin to

keep hinge centered.

Cut the covering

away from the

slot.

Assemble then apply drops of thin

C/A to center of hinge,on both sides.

Bottom side.

Remove the

covering.

YAK 54 - ITEM CODE: BH47-A.Instruction Manual

2. Drill through 6mm(diameter)theaileron

using the control horn as a guide and screw

the control horn in place.

Repeat the procedure for the other wing

half.

3. Install aileron control horn as same as

picture below.

5. 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.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.

Electric wire.

Thread.

Secure

Drill a hole

1.5mm

Installaileroncontrolhornassame

as picture below.

Control horn of Aileron

INSTALLING THE AILERON CONTROL HORN.

2x20mm.

Drill a hole

1.5mm

Secure.

Control horn

Aileron

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.

YAK 54 - ITEM CODE: BH47-A.Instruction Manual

1. Working with the aileron linkage for

now, thread one clevis onto one of the

threaded wires.

2. Attach the clevis to the outer hole in the

control horn.

3. Plug the aileron servo into the receiver

andcentertheservo.Installtheservoarm onto

the servo. The servo arm should be perpen-

dicular to the servo and point toward the mid-

dle of the wing.

INSTALLING THE AILERON

LINKAGES.

4. Locate one nylon servo arm, and using

wire cutters,remove all but one of the arms.

Using a 2mm drill bit, enlarge the third hole

out from the center of the arm to accommo-

date the aileron pushrod wire.

5. Using pliers, carefully make a 90 de-

greebenddownatthemarkmade.Cutoffthe

excess wire, leaving about 4mm beyond the

bend.

Bend and

cut after.

120mm

Bottom side.

6.Insertthe 90degree bend down through

the hole in the servo arm. Install one nylon

snap keeper over the wire to secure it to the

arm. Installthe servo arm retainingscrew and

remove the masking tape from the aileron.

Secure.

4x12mm

YAK 54 - ITEM CODE: BH47-A.Instruction Manual

1.The stopper has been pre-assembled at

the factory.

2. Using a modeling knife, cut one length

of silicon fuel line (the length of silicon fuel

line is calculated by how the weighted clunk

should rest about 8mm away from the rear of

the tank and move freely inside the tank).

Connect one end of the line to the weighted

clunk and the other end to the nylon pick up

tube in the stopper.

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.Carefully bend the third nylon tube down

ata 45degreeangle (usinga cigarette lighter).

This tubewill be venttubeto the fueling valve.

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.

INSTALLING THE STOPPER ASSEMBLY

FUEL TANK.

Silicon not included

Repeat the procedure for the other wing

half.

INSTALLING THE ENGINE MOUNT.

THERE ARE TWO OPTIONS:

1. ELECTRIC MOTOR

2. ENGINE MOUNT.

1. OPTION 1: ELECTRIC MOTOR.

4x30mm

3x30mm

2. OPTION 2: ENGINE MOUNT.

YAK 54 - ITEM CODE: BH47-A.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. If flashing is present, make

sure none of it falls into the tank.

6. When satisfied with the alignment of the

stopper assembly tighten the 3mm x 20mm

machine screw until the rubber stopper ex-

pandsandseals the tankopening.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.

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 frontofthe tankshould just about

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

through easily.

9. To secure the fuel tank in place, apply a

bead of silicon sealer to the forward area of

the tank, where it exits the fuselage behind

the engine mounting box and to the rear of

the tank at the forward bulkhead.

Fueltank.

Locate the long piece of wire used for the

throttlepushrod. One endof the wirehasbeen

pre-bend in to a “Z” bend at the factory. This

“Z” bend should be inserted into the throttle

arm of the engine when the engine is fitted

onto the engine mount. Fit the engine to the

engine mount using the screws provided.

INSTALLING THE ENGINE.

YAK 54 - ITEM CODE: BH47-A.Instruction Manual

1. Slide the fiberglass cowl over the en-

gine and line up the back edge of the cowl

with 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

thecowl withthe crankshaftof theengine. 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.

Secure

Pushrod wire.

Left side.

Right side.

Left side.

3. Slide the cowl back over the engine

andsecure it in place using four woodscrews.

See picture below.

Trim and cut.

Bottom side

4. Install the muffler and muffler exten-

sion onto the engine and make the cutout in

the cowl for muffler clearance. Connect the

fuel and pressure lines to the carburetor, muf-

fler and fuel filler valve.

YAK 54 - ITEM CODE: BH47-A.Instruction Manual

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 connec-

tor from loosening during flight.

INSTALLING THE THROTTLE PUSHROD.

Secure.

Throttle servo

Secure

Left side

Secure.

Right side

Installthe spinnerbackplate,propeller and

spinner cone. The spinner cone is held in

place using two 3mm x 12mm wood screws.

INSTALLING THE SPINNER.

Drill a hole

2mm

Right side

3x12mm.

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