Black Horse Model LF-107 Lunak Owner's manual

Instruction Manual book
SPECIFICATION


Wingspan: 6,000mm 236.22 in.


Length : 2,800 mm 110.24 in.


Weight : 18.5 kg 40.7 Lbs.
Parts listing required (not included).


Radio : 07-08 channels.


Servo : 09-10 standard high torque servos.


Electric motor: BOOST 180BL Motor


Battery: 12S - LIPO - 44.4V - 6,000mAh.HV


Speed control: 120A
Including Aluminium bubble wing bag and fuselage bag, elevator-rudder bag and glider cart.
Made in Vietnam.
ITEM CODE:BH 145

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LF-107 LUNAK - Item code: BH145 . 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 LF-107 LUNAK. 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 pilotonhis waytosuccessful R/Cflight.They willalsobeable
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
Landing gear.....
Toavoid scratching yournew airplane, 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-
craft and to protect the table. Keep a couple
of jars or bowls handy to hold the small parts
after you open the bag.
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.
Pleasetrialfitalltheparts. Makesureyou have
the correct parts and that they fit and are
aligned properly before gluing! This will as-
sure proper assembly.LF-107 LUNAK 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 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: 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.

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
Caution:
this model is not a toy!
If you are a beginner to this type of powered model, please ask an experienced model flyer for
help and support. If you attempt to operate the model without knowing what you 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
Even if you have already built a large number of RC models please read right through these
instructions and check all the kit components against the parts list. Wehave 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: Blow warm air over 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 be built in a very short time. 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.
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.
SAFETY PRECAUTION.
+ This is not a toy
+ Be sure that no other flyers are using your radio frequency.
+ Wear safety glasses.
+ Keep loose clothing and wires away from the propeller.
+ Do not start the motor if people are near. Do not stand in line with the side of the propeller.
+ Make motor adjustments from behind the propeller only. Do not reach around the spinning propel-
ler.

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
REPLACEMENT LARGE PARTS
REPLACEMENT SMALL PARTS
F5. Aluminium tube Horizontal stabilizer.
B. Left Wing panel (B1,B2).
A.Fuselage.A1,A2
D. Horizontal stabilizer(D1,D2).
E. Vertical stabilizer.
F1. Aluminium tube wing dihedral brace.
G. Decal sheet.
K.Pilot
F2. Aluminium tube wing Fuselage.
B. Right Wing panel (C1,C2).
F3. Aluminium tube wing
F4. Aluminium tube wing
1.Plastic parts bottom top wing
2.Plastic part bottom Fuselage.
3.Plastic parts of elevator pushrod.
3x12mm
4x20mm
3x12mm
1. 2.
3x12mm
4.
3.
5.
4x12mm
4x12mm
5.Motor mount wood:
4.Aluminium tube
G
K

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
1) Install the rubber grommets and brass
eyelets onto the aileron servos.
I. AILERON1.
1.INSTALLING THEAILERON SERVOS1.
2)Using amodeling knife,removethe cov-
ering at possition show below.
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.
4)Drill 1,6mmpilotholes throughthe block
of wood for each of the four mounting screws
provided with the servo.
Servo tray.
Aileron
Remove
covering
Secure.
Top side
Servo tray.
Electric
wire.
Bottom side

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
Installing the aileron linkages as pictures
below.
INSTALLING THE AILERON
LINKAGES.
5. Instal servo tray with aileron servo into
the wing as same as picture below.
3x12mm.
Secure.
Aileroncontrol horn
INSTALLING THE AILERON CONTROL HORN.
Repeat the procedure for the other wing
half.
A+B Epoxy
PLUS glue
Aileron control
horn
60 mm.
M2

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
Secure.
Secure.
Drill a hole
2.5mm diameter
3x15mm
3x12mm
Secure.
Bottom side.
3x12mm

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
Secure
II.AILERON 2
1.INSTALLING THE AILERON SERVO 2
Repeat the procedure for the other wing
half.
Top side.
Bottom side.
Bottom side.
Flap Aileron
4x12mm

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
Aileron.
Electric wire.
servo tray.
Secure.
3x10mm
A+B Epoxy
PLUS glue
Install flap control horn as same
as picture below.
Control horn aileron
2.INSTALLING THE AILERON
CONTROL HORN.

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
Installing the flap linkages as pictures
below.
3.INSTALLING THE AILERON
LINKAGES.
75 mm.
3x15mm
Secure.
Secure.
3x15mm.
Control
aileron.
Bottom side
II. FLAP.
1.INSTALLING THE FLAP SERVOS.
aileron
Bottom side
Flap

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
Secure
Install flap control horn as same
as picture below.
Control horn Flap.
2.INSTALLING THE FLAP
CONTROL HORN.
A+B Epoxy
glue.
Installing the flap linkages as pictures
below.
3.INSTALLING THE FLAP
LINKAGES.
75 mm.
3x15mm
3X12mm
Electric
wire
Control horn
of the flap
Servo tray

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
3x15mm.
Secure.
Secure.
INSTALLING THE FUSELAGE.
Left Bottom side.
Bottom side.
See pictures below:
25mm
650mm
Flap
Flap
Right Bottom side. Aileron

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
See pictures below:
(Not included)
Wing bolt.
INSTALLING ELECTRIC MOTOR
AND ESC
6x45 mm
Top side.
Secure.
Secure.

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
Front view.
Open
4x20mm.
4x20mm.
4x20mm
Secure
4x20mm
Drill a hole
5.2mm diameter.

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
Secure
Front view
3x12 mm
Secure.
Mottor
Rotor shaft
ESC
Bettery
Battery

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
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.
HORIZONTAL STABILIZER.
ELEVATOR SERVO INSTALLATION.
Horizontal stabilizer installation
.
See picture below.
Bottomside
Secure.
Elevator
servo

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
Elevator control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
ELEVATOR CONTROL HORN IN-
STALLATION.
Control horn of elevator.
Secure.
Repeat the procedure for the other hori-
zontal stabilizer half.
Elevator
control horn
A+B Epoxy
PLUS glue.
 Elevatorpushrod installas sameastheway
of aileron pushrod.
ELEVATOR PUSHROD INSTALLATION.
115mm.
3x 10mm

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
Secure.
Elevator
pushrod
Bottom side
Left side.
Secure.
Elevator
pushrod
Right
side.
Secure.
470mm
12mm
4x12mm:
3x15mm:

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
Right side.
Left side.
Secure.
Bottom side.

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LF-107 LUNAK - Item code: BH145 . Instruction Manual
VERTICAL INSTALLATION
See picture below:
Rudder servo install as same as method of
elevator servo. See picture below:
RUDDER INSTALLATION.
Rudder
servo
12mm.
195 mm
4x12mm
Secure.
Rudder
servo