Black Horse Model KATANA bh27 Owner's manual

INSTRUCTIONMANUALBOOK
SPECIFICATION
MadeinVietnam.


Wingspan: 1,540 mm 61in.


Length : 1,370 mm 53.54 in.


Weight : 3 Kg 6.6Lbs.


Engine : 61 cu.in 2 stroke.
91 cu.in 4 stroke.


Radio : 6 channels.


Servo : 6 servos.
ITEM CODE: BH27.

KATANA. Instruction Manual
2
This instruction manual is designed to help you build a great flying aeroplane. Please read this
manualthoroughlybeforestartingassemblyofyour KATANA.Usethepartslistingbelowtoidentify
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
proceduresdesignedtohelp thenewpilotonhisway tosuccessfulR/Cflight.Theywill alsobeable
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.....
Toavoidscratching your new 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
aircraftandtoprotectthe table. Keep a couple
of jars or bowls handy to hold the small parts
after you open the bag.
Pleasetrialfitall theparts.Makesureyouhave
the correct parts and that they fit and are
alignedproperlybeforegluing!Thiswillassure
proper assembly. KATANA ARF is hand made
from natural materials, every plane is unique
andminoradjustments may have tobe 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
following: 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-
installedrudder.
(1) Horizontal stabilizer with pre-
installedelevatorhalves.
SUGGESTION.
NOTE.

KATANA. INSTRUCTION MANUAL
3
Caution: this model is not a toy!
If you are a beginner to this type of powered
model,pleaseaskanexperiencedmodelflyer
forhelpand support. If you attempttooperate
themodelwithoutknowingwhatyouare 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
ofRCmodels please read rightthroughthese
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: Blowwarmairoverthearea
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
bebuiltinaveryshort time. 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
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.
+ 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
thepropeller.
+ Do not start the engine if people are near.
Do not stand in line with the side of the
propeller.
+ Make engine adjustments from behind the
propeller only. Do not reach around the
spinningpropeller.
SAFETY PRECAUTION.
REPLACEMENT LARGE PARTS
B. Fuselage.
D. Horizontal stabilizer.
E.Vertical stabilizer.
C.Wing panel.
A.Cowling.
G. Decal sheet .
F.Aluminium wing dihedral brace.
1. Cover wheel pant.
1
2
2.Aluminium landing gear.
A
C
D
E
G
B
F
3
4
3.Spinner.
4. Wheel.
5
5. Tail gear.
6
6. Plastic engine mount.
7. Fuel tank.
7

KATANA. Instruction Manual
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Repeat the procedure for the other wing
half.
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,
remove the masking tape and the servo lead
from the thread.
4.Drill 1,5mm pilotholes through theblock
of wood for each of the four mounting screws
providedwiththeservo.Installservointoaileron
servo tray as same as picture 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,
remove the masking tape and the servo lead
from the thread.
Thread.
Electric
wire.
C/Aglue.
 1. Install the rubber grommets and brass
eyelets onto the aileron servo.
2.Using a modeling knife, removethe cov-
ering at possition show below.
INSTALLING THE AILERON SERVOS.
Remove the
covering.
Bottomofwing.

KATANA. INSTRUCTION MANUAL
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. Install aileron control horn as same as
picture below.
C/Aglue.
C/Aglue.
C/Aglue.
Remove the
covering.
Nilon control clasp.
M3 lock nut.
3mm x 50mm.
INSTALLINGTHEAILERONCONTROLHORN.

KATANA. Instruction Manual
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C/Aglue.
AileronControlhorn
INSTALLING THE AILERON
LINKAGES.
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. Installtheservoarmonto
the servo. The servo arm should be perpen-
dicular to the servo and point toward the mid-
dle of the wing.
Bendandcut after

KATANA. INSTRUCTION MANUAL
7
INSTALLING THE ENGINE MOUNT.
ENGINE MOUNT.
end of the line to the weighted clunk and the
otherendto the nylon pick uptubein the stop-
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) Carefullybendthethirdnylontubedown
ata45degreeangle(usingacigarettelighter).
This tubewillbeventtubetothefuelingvalve.
INSTALLING THE STOPPER ASSEMBLY
1) The stopper has been pre-assembled
at the factory.
2) Using a modeling knife, cut one length
ofsiliconfuel line (the length ofsiliconfuel line
iscalculatedbyhowthe weighted clunkshould
restabout8mm away from the rearofthetank
andmovefreelyinside the tank). Connect one
FUEL TANK.
C/Aglue

KATANA. Instruction Manual
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When the stopper assembly is installed in the
tank, the top of the vent tube should rest just
belowthetop surface of thetank. It should 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
amodelingknife. Ifflashing is present, make
sure none of it falls into the tank.
6) When satisfied with the alignment of
thestopperassemblytighten the3mmx20mm
machine screw until the rubber stopper ex-
pandsandsealsthetankopening.Donotover
tighten the assembly as this could cause the
tank to split.
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,whereitexitsthefuselagebehindthe
enginemountingboxandtotherearofthe tank
at the forward bulkhead.
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,thefrontofthetankshouldjustabout
touch the back of the firewall.
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.
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
Vent tube Fuel pick- up tube
Fuelfill tube
8
(silicon not included)

KATANA. INSTRUCTION MANUAL
9
Locate the long piece of wire used for the
throttlepushrod.Oneendofthewirehasbeen
pre-bend in to a “Z” bend at the factory. This
“Z” bend should be inserted into the throttle
armofthe enginewhentheengineis fittedonto
theenginemount. Fit the enginetothe engine
mount using the screws provided.
INSTALLING THE ENGINE.
Pushrod wire.
120mm
Pushrod wire.
4 X 30mm
Drill 2mm hole

KATANA. Instruction Manual
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Trimandcut.
Bottom side.
Trim and cut.
Right side.
Right side.
Bottom side.
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.

KATANA. INSTRUCTION MANUAL
11
2. While keeping the back edge of the
cowl flush with the marks, align the front of
thecowlwiththecrankshaft of 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.
Installthespinnerbackplate,propellerand
spinner cone. The spinner cone is held in
place using two 3mm x 12mm wood screws.
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
andfuel filler valve.
3. Slide the cowl back over the engine
andsecureitin place using four woodscrews.
See picture below.
INSTALLING THE SPINNER.
Left side.
3 x 12mm.
1. Assemble and mounting the wheel
pants as shown in the following pictures.
MAIN GEAR INSTALATION.
PARTSREQUIRED

KATANA. Instruction Manual
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Repeat the procedure for the other
wheel pant .
1. The blind nuts are already mounted in-
side the fuselage.
2. Theholesinthe landing gear should be
to accept the mounting bolts.
3. Using the hardware provided, mount
the main landing gear to the fuselage.
INSTALLING THEMAIN LANDING GEAR.
Secure.
2. A drop of C/A glue on the wheel collar
screws will help keep them from coming lose
duringoperation.
Repeat the process for the other wheel.
Landing gear.
MOUNTING THE TAIL WHEEL
BRACKET.
3x12mm.
Drill a hole.

KATANA. INSTRUCTION MANUAL
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

1. Set the tail wheel assembly in place
on the plywood plate. The pivot point of the
tail wheel wire should be even with the rud-
derhingelineandthe tailwheelbracketshould
be centered on the plywood plate.


2. Using a pen, mark the locations of the
two mounting screws. Remove the tail wheel
bracket and drill 1mm pilot holes at the loca-
tions marked.
Secure.
SERVO INSTALLATION
ELEVATOR INSTALLATION
1. Install the rubber grommets and brass
colletsintotheelevatorservo.Testfittheservo
into the servo tray.
2. Mount the servo to the tray using the
mounting screws provided with your radio
system.


3. Secure the tail wheel bracket in place
using three 3mm x 12mm wood screws. Be
careful not to overtighten the screws.
Remove the covering
Right side
Left side

KATANA. Instruction Manual
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Horizontal stabilize installation .
See picture below.
C/Aglue.
C/Aglue.
C/Aglue.
1. Using a modeling knife, cut away the
covering from the fuselage for the stabilizer
and remove it.
HORIZONTAL STABILIZER
INSTALLATION.
elevator servo left side
elevator servo right side
Topelevator

KATANA. INSTRUCTION MANUAL
15
2. Draw a center line onto the horizontal
stabilizer.Thenput the horizontalintothe fuse
large.
3. Marktheshape of the verticalonthe left
and right sides onto the horizontal stabilizer
using a felt-tip pen
4. Remove the stabilizer. Using the lines
youjust drew as aguide, carefully remove the
coveringfrombetweenthemusingamodeling
knife.
When cutting through the covering to re-
move it, cut with only enough pressure to
only cut through the covering it’s self. Cut-
ting into the balsa structure may weaken
it. This could lead to possible failure dur-
ing flight
Check to mark sure the wing and stabi-
lizer are paralell. If they are not, lightly sand
theopeningin the fuselage forthestabilizer
until the stabilizer is paralell to the wing.
5. When you are sure that everything is
aligned correctly, mix up a generous amount
of 30 minute epoxy. Apply a thin layer to the
topandbottom of the stabilizer mountingarea
and to the stabilizer mounting platform sides
inthefuselage.Slidethe stabilizer inplaceand
re-align. Double check all of your
measurements one more time before the
epoxycures.Removeanyexcessepoxyusing
a paper towel and rubbing alcohol and hold
the stabilizer in place with T-pins or masking
tape.
Top elevator
Center line.
Mark line.
Bottom side.
Remove covering.
Expoxyglue

KATANA. Instruction Manual
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Elevator control horn install as same as the
wayofaileroncontrolhorn.Pleaseseepictures
below.
ELEVATOR CONTROL HORN
PUSHROD INSTALLATION.
C/Aglue.
C/Aglue.
6. After the epoxy has fully cured, re-
move the masking tape or T-pins used to
hold the stabilizer in place and carefully in-
spectthe glue joints. Use more epoxy to fill
in any gaps that were not filled previously
and clean up the excess using a paper towel
and rubbing alcohol.
Nilon control clasp.
M3lock nut.
3mm x 40mm.
Controlhornofelevator.
Epoxyglue.
Remove covering
Bottomside of elevator

KATANA. INSTRUCTION MANUAL
17
C/Aglue.
Elevator
controlhorn
Elevator pushrod install as same as the
way of aileron pushrod.
ELEVATOR PUSHDROD
INSTALLATION
Bendandcut after
Elevator
pushrod Elevator
pushrod
Bottom side

KATANA. Instruction Manual
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1. Using a modeling knife cut away the
coveringfromthe horizontal fin for the rudder
and remove it.
C/Aglue.
C/Aglue.
Markline
C/Aglue.
2. Slide the rudder into the fuselage as
same as picture below.
3. Marktheshape of the verticalonthe left
andrightsideof therudderusing a felt-tip pen.
VERTICAL INSTALLATION
Top side
Hinge.
Hingeslot.

KATANA. INSTRUCTION MANUAL
19
4. Now, remove the rudder and using a
modeling knife, carefully cut just inside the
markedlinesandremove thefilmoftherudder.
Just as you did with the horizontal stabilizer,
make sure you only press hard enough to cut
the film, not the balsa rudder. Epoxyglue.
Epoxyglue.
5. Put the vertical stabilizer back in
place. Using a triangle, check to ensure
that theverticalstabilizerisaligned90degree
to the horizontal stabilizer.
C/Aglue.
Also carefully remove the covering from
the horizontal fin as below the lines which
you drew as same picture below.
Remove covering.
Remove covering.
6) When you are sure that everything is a
aligned correctly, mix up a generous amount
of 30 minute epoxy. Apply a thin layer to the
slotinthemountingplatformandtothevertical
stabilizer mounting area. Apply epoxy to the
lower rudder hinge. Set the stabilizer in place
and re-align. Double check all of your
measurements once more before the epoxy
cures. Remove any excess epoxy using a
paper towel and rubbing alcohol and hold the
stabilizerinplacewithT-pins or masking tape.
Allowtheepoxytofullycurebeforeproceeding.

KATANA. Instruction Manual
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Rudderpush-pullsysteminstallassams
aspicturebelow
1. Rudder pushrod install as same as the
way of aileron control horn.
2. Rudder push - pull system install as
same as picture below.
RUDDER PUSHROD INSTALLATION.
M3 clevis ( 4pcs for push - pull system ).
M3lock nut.
Rudder control horn
Nilon control clasp.
M3lock nut.
3mm x 50mm.
Rudder control horn install as same as the
wayofaileroncontrolhorn.Pleaseseepictures
below.
ControlhornofRudder.
C/Aglue
RUDDER CONTROL HORN INSTALLA-
TION.
Remove covering