Black Horce Model Diablo Owner's manual

SPECIFICATION
MadeinVietnam.
Wingspan : 1.270 mm 50 in.
Length : 1.400 mm 55.1 in.
Weight : 1.8 kg 3.96 Lbs.
Partslistingrequired(notincluded):
 Radio : 04 channel.
Servo : 04 - 05 servos.
Motor : AXI2826.12.
Battery: 3 CELLS - LI - POLY - 11.1v - 3.500 mA.h.
Propeller : 12 x 4.8
Engine : 46 2 Stroke.
52 4 Stroke.
INSTRUCTION MANUAL BOOK.

DIABLO Instruction Manual.
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This instruction manual is designed to help you build a great flying aeroplane. Please read this
manualthoroughlybeforestartingassemblyofyourDIABLO.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
proceduresdesignedtohelpthe newpilot onhiswaytosuccessfulR/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.
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.
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
aircraftand toprotectthe table.Keepa couple
of jars or bowls handy to hold the small parts
after you open the bag.
Please trial fit all the parts. Make sure you
havethe correctparts andthat theyfitand are
alignedproperlybefore gluing!Thiswillassure
proper assembly. DIABLO ARF is hand made
from natural materials, every plane is unique
andminor adjustmentsmay haveto bemade.
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.
Some more parts........
Tail section assembly
(1) Vertical stabilizer with pre-
installedrudder.
(1) Horizontal stabilizer with pre-
installedelevatorhalves.
SUGGESTION.
NOTE.

DIABLO Instruction Manual.
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+ 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.
+Theglowplugclipmustbesecurelyattached
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.
 1) Install the rubber grommets and brass
eyelets onto the aileron servos.
INSTALLING THE AILERON SERVOS.
2) Using a modeling knife, remove the
covering 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,
remove the masking tape and the servo lead
from the thread.
4)Drill 1,6mmpilot holes throughthe block
of wood for each of the four mounting screws
provided with the servo.
Electric wire.
Aileronservo.
Removecovering.
Electric wire.

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1) Using a ruler & pen to draw a straight
line as below picture.
INSTALLING THEAILERON CONTROLHORN.
Pen.
2 mm x 30 mm.
Straighline.
2) Locate nylon control horns, nylon con-
trol horn backplates and 2 machine screws.
3) Position the aileron horn on the bottom
side of aileron. The clevis attachment holes
should be positioned over the hinge line as
shown below.
2mm.

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Aileronpushrod.
Cut.
INSTALLING ELECTRIC MOTOR.
C/Aglue.
Aileronpushrod.
C/Aglue.
Push.

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COWLING.
1) Slide the cowl over the motor and line
up the back edge of the cowl with the marks
you made on the fuselage.
Machine screw.
C/Aglue.
Front view.
3) Slide the cowl back over the motor.
2) While keeping the back edge of the
cowl flush with the marks, align the front of
thecowl withthe crankshaftof themotor. 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.
3x10mm.
Motor.
Rotor shaft.

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INSTALLING THE BATTERY.
Battery stray. Rubberband.
Rubber band.

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INSTALLING THE STOPPER ASSEMBLY
1) The stopper has been pre-assembled
at the factory.
 2) Using a modeling knife, cut one length
ofsilicon fuelline (thelengthof siliconfuel line
iscalculatedbyhow theweightedclunkshould
restabout 8mmaway from therear ofthe tank
andmove freelyinsidethe 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 at a 45 degree angle (using a cigarette
lighter).This tubewillbeventtube tothefueling
valve.
FUEL TANK.
When the stopper assembly is installed in the
tank, the top of the vent tube should rest just
belowthe topsurface ofthe tank.Itshould 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
amodeling knife. If flashing is present, make
sure none of it falls into the tank.
 6) When satisfied with the alignment of
thestopperassemblytightenthe 3mm x20mm
machine screw until the rubber stopper
expands and seals the tank opening. Do not
over 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.
4 x 20 mm.
3 x 20 mm.
INSTALLING THE ENGINE MOUNT.

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 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,thefront ofthetank should justabout
touch the back of the firewall.
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 securethe fueltankin place,apply a
bead of silicon sealer to the forward area of
thetank, where itexitsthe fuselagebehindthe
enginemountingboxandtothe rear ofthetank
at the forward bulkhead.
Do not secure the tank into place
permanentlyuntil afterbalancing the airplane.
You may need to remove the tank to mount
the battery in the fuel tank compartment
Locate the long piece of wire used for the
throttlepushrod.One endofthe wirehasbeen
pre-bend in to a “Z” bend at the factory. This
“Z” bend should be inserted into the throttle
armoftheenginewhentheengine is fittedonto
theengine mount.Fit theengineto theengine
mount using the screws provided.
INSTALLING THE ENGINE-THROTTLE.

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COWLING.
1).Slide the fiberglass cowl over the en-
gineand line upthe back edgeofthe cowlwith
the marks you made on the fuselage.
Pushrod wire. 4)Install themuffler andmuffler extension
onto the engine and make the cutout in the
cowl for muffler clearance. Connect the fuel
and pressure lines to the carburetor, muffler
andfuel fillervalve.
3) Slidethecowl backovertheengine and
secureit inplace usingfour woodscrews.See
picture below.
Trim and cut.
3x10mm.
2) Whilekeepingthebackedgeofthe cowl
flushwith themarks, alignthefront ofthe cowl
withthe crankshaft ofthe engine. The front of
the cowl should be positioned so the crank-
shaft is in nearly the middle of the cowl open-
ing. Holdthe cowlfirmly inplace usingpieces
of masking tape.

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Install the spinner backplate, propeller
andspinner cone. Thespinner coneis held in
place using two 3mm x 15mm wood screws.
SERVOS INSTALLATION.
Throttleservo.
INSTALLING THE SPINNER.
Installing the servo as same as picture bellow.
SERVO INSTALLATION.
1) Install the rubber grommets and brass
eyelets onto the servos.
2) Install the metal connector onto servo
arm.

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1) Using a ruler and a pen, locate the
centerline of the horizontal stabilizer, at the
trailing edge and place a mark. Use a triangle
and extend this mark, from back to front,
across the top of the stabilizer. Also extend
thismark downthe backof thetrailing edgeof
the stabilizer.
2) Slide the the elevator into place in the
pre-cut slot in the rear of the fuselage.
INSTALLING ELEVATOR.
 3) Using a modeling knife, remove the
covering at servo tray and at fuselage slot.
Remove covering.
4) Drill1,6mmpilot holesthroughthe block
of wood for each of the four mounting screws
provided with the servo.
Hinges.
Removecovering.

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5) When you are sure that everything is
aligned correctly, mix up a generous amount
ofFlash 30Minute Epoxy.Apply athin layerto
thetop and bottomof thevertical finmounting
platformsidesinthefuselage.Slide thevertical
fin in place and realign. Double check all of
your measurements once more before the
epoxy cures. Hold the vertical fin in place with
T-pins or masking tape and remove any
excessepoxyusing apapertowel and rubbing
alcohol.
CONTROL HORN INSTALLATION.
Control horns as same as method of aileron
wing. See pictures below:
2 x 16 mm.
INSTALLING RUDDER.
1) Using a modeling knife, remove the
covering from over the precut hinge slot cut
intothe lower rearportionof thefuselage.This
slot accepts the lower rudder hinge.
Remove covering.
Hinge.
3) When you are sure that everything is
aligned correctly, mix up a generous amount
ofFlash 30Minute Epoxy.Apply athin layerto
thetop and bottomof thevertical finmounting
platformsidesinthefuselage.Slide thevertical
fin in place and realign. Double check all of
your measurements once more before the
epoxy cures. Hold the vertical fin in place with
T-pins or masking tape and remove any
excessepoxyusing apapertowel and rubbing
alcohol.
2) Slide the vertical fin into place in the
pre-cut slot in the rear of the fuselage.
AttachC/A glueinto hinge.

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PUSHRODINSTALLATION
Pushrodinstallassameasmethodofaileronwing
.See pictures below.
Rudder pushrod.
Rudder control horn.
MOUNTING THE TAIL WHEEL BRACKET
 
 
 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 rudder
hinge line and the tail wheel bracket should
be centered on the plywood plate.
Elevator
pushrod. Rudder
pushrod.
Elevator pushrod.
3 x 12mm.
Elevatorcontrol horn.
Elevatorservo.

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 1) Using a modeling knife, remove the
coveringfromoverthetwomaingearmounting
slots located in the bottom of the fuselage.

2) Using the two landing gear straps as a
guide,mark thelocationsof thefour mounting
screws onto the fuselage surface.

3) The landing gear wire is held in place
using two nylon landing gear straps and four
wood screws.
MAIN GEAR INSTALLATION.


4) Themain wheel inplace using twocol-
lars.
3 x 12 mm.

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INSTALLING THE SWITCH.
 1) Cutout theswitch hole usinga modeling
knife. Use a 2mm drill bit and drill out the two
mounting holes through the fuselage side.

2) Secure the switch in place using the
two machine screws provided with the radio
system.
 3) Do notpermanentlysecure the receiver
and battery until after balancing the model.

4) Using a2mm drillbit, drilla holethrough
the side of the fuselage, near the receiver, for
the antenna to exit.

1) Plug the servo leads and the switch
leadinto the receiver. You may want to plug
anaileronextensioninto the receiver to make
plugging in the aileron servo lead easier
when you are installing the wing . Plug the
battery pack lead into the switch.

2) Wrap the receiver and battery pack in
the protective foam to protect them from
vibration. Use a rubber band or masking tape
to hold the foam in place.
INSTALLINGTHE RECEIVERAND BATTERY.
Switch

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See picture wing attach to fuselage.
WING ATTACHMENT.
 3. Turn the airplane upside down. Place
your fingers on the masking tape and care-
fully lift the plane .

1) It is critical that your airplane be bal-
anced correctly. Improper balance will cause
your plane to lose control and crash.
THE CENTER OF GRAVITY IS LOCATED
65-90MM BACKFROMTHELEADINGEDGE
OF THE WING.

2) Mount the wing to the fuselage. Using a
couple of pieces of masking tape, place them
on the top side of the wing 65-90 mm back
from the leading edge, at the fuselage sides.
BALANCING.
Accurately mark the balance point on the top
of the wing on both sides of the fuselage. The
balance point is located 65-90mm mm back
fromtheleadingedge.Thisisthebalance point
at which your model should balance for your
firstflights.Later,youmay wishto experiment
byshifting the balanceup to10mm forwardor
backtochange theflyingcharacteristics. Mov-
ing the balance forward may improve the
smoothnessandarrow-liketracking,butit may
thenrequiremore speed fortakeoff andmake
it more difficult to slow down for landing. Mov-
ingthebalanceaftmakesthemodelmoreagile
with a lighter and snappier ”feel”. In any case,
please start at the location we recommend .
With the wing attached to the fuselage, all
parts of the model installed ( ready to fly), and
empty fuel tanks, hold the model at the
marked balance point with the stabilizer level.

DIABLO Instruction Manual.
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Lift the model. If the tail drops when you
lift,the model is“tail heavy”and you mustadd
weigh*tothenose.If thenosedrops,itis“nose
heavy” and you must add weight* to the tail to
balance.
*Ifpossible, firstattempt tobalance themodel
by changing the position of the receiver bat-
tery and receiver. If you are unable to obtain
good balance by doing so, then it will be nec-
essary to add weight to the nose or tail to
achieve the proper balance point.
CG
65-90MM.
 1) Completely charge your transmitter and
receiverbatteries beforeyourfirstdayofflying.
 2) Check every bolt and every glue joint in
your plane to ensure that everything is tight
and well bonded.
 3) Double check the balance of the
airplane.
 4) Check the control surface.
 5) Check the receiver antenna . It should
be fully extended and not coiled up inside the
fuselage.
 6) Properly balance the propeller.
We wish you enjoy.
PRE-FLIGHT CHECK.
Aileron Control
Ailerons : 20mm up 20mm down
Elevator : 15mm up 15mm down
Rudder : 20mm right 20mm left

1) We highly recommend setting up a
plane 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 surfaces
move in the correct directions.
CONTROL THROWS.