Black Horse Model YAK 54 Owner's manual

INSTRUCTION MANUAL BOOK
SPECIFICATION
Made in Vietnam.
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 Wingspan: 1,440 mm 56.69 in.


Length: 1,250 mm 49.21 in.
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
Weight: 2.4-26 kg 5.28-5.72 lbs.
Parts listing required (not included).
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Radio: 04 channels.
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Servo: 04-05 servos, size:(21 x 42)mm.
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Engine: 46 cu.in 2 stroke; 52 cu.in 4 stroke.
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Motor: Brushless outrunner 1000-1800W, 800KV.
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Propeller: Suit with your engine.
Recommended Motor and Battery set up
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
Motor: RIMFIRE.46 (not included).
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Lipo cell: 6cells 4,000-5,000mAh (not included).
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ESC: 60A (not included).


Receiver battery: 4.8-6V/ 800-1200mAh NiMH.

YAK 54 - ITEM CODE: BH47-A.Instruction Manual
2
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.

3
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
4
 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.

5
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.