Black Horse Model Ultimate Owner's manual

INSTRUCTION MANUAL BOOK
SPECIFICATION
MadeinVietnam.
1Wingspan : 1,400 mm 55 in.
1Length :1,460 mm 57.5 in.
1Weight : 3.8 kg 8.4 lbs.
Parts listing required (not included):
1Engine : 61-.91cu.in 2 stroke;
120 cu.in 4 stroke.
1Radio : 04 channels.
1Servo : 06 servos.
ITEMCODEBH38.

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This instruction manual is designed to help you build a great flying aeroplane. Please read this
manual thoroughly before starting assembly of your ULTIMATE. Use the parts listing below to
identifyallparts.
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.
If you are inexperienced with basic R/C flight we strongly recommend you contact your R/C
supplierandjoinyourlocalR/CModelFlyingClub.R/CModelFlyingClubsofferavarietyoftraining
proceduresdesignedtohelpthenewpilotonhiswaytosuccessfulR/Cflight.Theywillalsobeable
to advise on any insurance and safety regulations that may apply.
TOOLS & SUPPLIES NEEDED.
1Thick cyanoacrylate glue.
130 minute epoxy.
15 minute epoxy.
1Hand or electric drill.
1Assorted drill bits.
1Modellingknife.
1Straightedgeruler.
12mm ball driver.
1Phillips head screwdriver.
1220 grit sandpaper.
190° square or builder’s triangle.
1Wire cutters.
1Masking tape & T-pins.
1Thread-lock.
1Paper towels.
Some more parts.
HARDWARE PACK
COWLING
Landinggear.....
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
aircraftand toprotectthe table.Keep acouple
of jars or bowls handy to hold the small parts
after you open the bag.
Please trial fit all the parts. Make sure you
havethecorrect parts and thatthey fit and are
alignedproperly beforegluing! Thiswillassure
properassembly. ULTIMATE ARFishandmade
from natural materials, every plane is unique
andminoradjustments may havetobe made.
However, you should find the fit superior and
assembly simple.
The painted and plastic parts used in this
kitarefuelproof.However, theyarenottolerant
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(1) Fuselage.
WING ASSEMBLY
1(1) Right wing half with pre-installed
aileron.
1(1) Left wing half with pre-installed
aileron.
Tail section assembly
1(1) Vertical stabilizer with pre-
installedrudder.
1(1) Horizontal stabilizer with pre-
installedelevatorhalves.
SUGGESTION.
NOTE.

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+ This is not a toy
+ Be sure that no other flyers are using your
radiofrequency.
+ Do not smoke near fuel
+ Store fuel in a cool, dry place, away from
children and pets.
+ Wear safety glasses.
+Theglow plugclipmustbesecurely attached
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
propeller.
+ Make engine adjustments from behind the
propeller only. Do not reach around the
spinningpropeller.
SAFETY PRECAUTION.
1 1. Install the rubber grommets and brass
eyelets onto the aileron servo.
INSTALLING THE AILERON SERVOS.
Aileron.
Temporary pin to
keep hinge centered.
Assemble then apply drops of thin
C/A to center of hinge,on both sides.
Cutthe covering
awayfromthe slot.
Servo tray.
Bottom side.

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14. Install servo tray with aileron servo into
the wing as same as picture below.
12. Locate nylon control horns, nylon con-
trol horn backplates and 3 machine screws.
Repeat the procedure for the right lower
wing half.
Wing. Servo tray.
11. Using a ruler & pen to draw a straight
line as below picture.
Pen.
INSTALLINGTHEAILERON CONTROL HORN.
13. 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.
12.Drill1,5mm pilot holes through theblock
of wood for each of the four mounting screws
providedwiththeservo.Installservointoaileron
servo tray as same as picture below:
Remove covering.
Aileron sero tray.
Bottom of left lower wing
Servo wire.
2x10mm.

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1 3. Drill three 3mm holes through the ai-
leron using the control horn as a guide and
screw the control horn in place.
3x40mm.
Nilon control clasp.
M3lock nut.
Drill 6mm a hole diameter.
14. Install control horn as same as picture
below.
Bottom of left lower wing
Aileroncontrol horn.
Control horn.

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14. 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
outfromthecenterof thearmto accommodate
the aileron pushrod wire.
15.Usingpliers, carefully make a 90degree
bend down at the mark made. Cut off the ex-
cess wire, leaving about 4mm beyond the
bend.
16.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 servoarm retainingscrewand
remove the masking tape from the aileron.
M2lock nut.
M2 clevis. Snapkeeper.
INSTALLING THEAILERONLINKAGES.
11. Working with the aileron linkage for
now, thread one nylon clevis onto one of the
threaded wires.
12. Attach the clevis to the outer hole in the
control horn. Install a silicone tube on the
clevis.
13. Plug the aileron servo into the receiver
andcenterthe servo.Installthe servoarmonto
the servo. The servo arm should be
perpendicular to the servo and point toward
the middle of the wing.
C/Aglue.
Repeat the procedure for the right lower
wing half.
bend.
C/Aglue.
Bottom of left lower wing

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245mm.
Straightline
Top of left lower wing
Top of left lower wing
Parts requirement. See pictures below:
Repeat the procedure for the right lower
wing half (bottom of right ).
WING STRUT INSTALLATION
(LOWER WING).
25mm.
Markpoint
old straight
line
Drill hole.
Top of left lower wing
Repeat the procedure for the right lower
wing half (Top of right ).
11. Locate the aluminium wing dihedral
brace.
12.Testfitthealuminiumdihedralbraceinto
each wing half. The brace should slide in
easily.
JOINING THE WING HALVES
(LOWER MAIN WING).
Secure
Finishing

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Using a modeling knife, remove the cover-
ing at possition show below.
Repeat the procedure for the left upper
wing half (Bottom of left ).
Bottom size of upper wing
Remove the covering.
Parts requirement. See pictures below:
WING STRUT INSTALLATION
(UPPER WING).
Dowel.
Bottom side of left
lower a wing.
245mm.
Straight line
Aluminium brace.
Left Right
Top side of left
lower a wing. Top side of right
lower a wing.
18mm.
Bottom side of right
upper wing
old straight
line
Markpoint
Drill hole.

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122mm.
4x30mm.
3.5x25mm.
INSTALLING THE ENGINE MOUNT.
Drill holes.

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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.
19. To secure the fuel tank in place, apply a
bead of silicon sealer to the forward area of
thetank, whereit exitsthe fuselagebehindthe
enginemountingbox andtothe rearofthe tank
at the forward bulkhead.
18. 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 frontof thetank shouldjust 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
INSTALLING THE STOPPER ASSEMBLY
11.The stopper has beenpre-assembled at
the factory.
12.Usinga modeling knife,cutone length of
siliconfuelline (the lengthof silicon fuel lineis
calculated by how the weighted clunk should
restabout8mm away fromthe rear of thetank
andmove freely inside thetank). Connect one
end of the line to the weighted clunk and the
other end to the nylon pick up tube in the
stopper.
13.Carefully bend the secondnylon tube up
ata 45degree angle(using acigarette lighter).
This tube will be the vent tube to the muffler.
14.Carefullybend the third nylon tubedown
ata 45degree angle(using acigarette lighter).
This tubewill beventtube tothe fuelingvalve.
FUEL TANK.
When the stopper assembly is installed in
the tank, the top of the vent tube should rest
justbelow thetopsurface ofthe tank.Itshould
not touch the top of the tank.
15. 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. Ifflashing is present, make
sure none of it falls into the tank.
16. When satisfied with the alignment of the
stopper assembly tighten the 3mm x 20mm
machine screw until the rubber stopper
expands and seals the tank opening. Do not
overtightenthe assembly as this couldcause
the tank to split.
17. 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.

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11. Slide the fiberglass cowl over the en-
gineand lineup theback edgeof thecowlwith
the marks you made on the fuselage.
Locate the long piece of wire used for the
throttlepushrod. Oneend ofthe wirehasbeen
pre-bend in to a “Z” bend at the factory. This
“Z” bend should be inserted into the throttle
armofthe enginewhenthe engineisfitted onto
theengine mount.Fitthe engineto theengine
mount using the screws provided.
12. 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.
3x10mm.
Fueltank.
Rubber band.
Pushrod wire.
COWLING.
13. Slide the cowl back over the engine
and secure it in place using four screws. See
picture below.
14. Installthemufflerandmufflerextension
onto the engine and make the cutout in the
cowl for muffler clearance. Connect the fuel
and pressure lines to the carburetor, muffler
and fuel filler valve.

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Install the spinner backplate, propeller
andspinner cone. Thespinner coneisheld in
place using two 3mm x 15mm wood screws.
11. Install the rubber grommets and brass
collets into the elevator, rudder, and throttle
servos. Test fit the servos into the servo tray.
12. Mount the servos to the tray using the
mounting screws provided with your radio
system.
INSTALLING THE SPINNER.
Machine screw.
Rudder servo. Throttle
servo.
Eleva-
tor
servo.
INSTALLLING THE FUSELAGE SERVO.

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Remove covering.
12. Draw a center line onto the horizontal
stabilizer. Then slide the horizontal into the
fuselage.
Remove covering.
11. Using a modeling knife, cut the cover-
ing from the horizontal stabilizer and remove
it.
HORIZONTAL STABILIZER.
Check to mark sure the wing and stabi-
lizerareparalell. If theyarenot, lightly sand
theopening in thefuselage forthe stabilizer
until the stabilizer is paralell to the wing.
See pictures below:
Temporary pin to
keep hinge centered.
Assemble then apply drops of thin
C/A to center of hinge,on both sides.
Cutthe covering
awayfromthe slot.
Center line.

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VERTICAL STABILIZER.
Covered wood
filler piece.
15. 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 thestabilizermounting area
and to the stabilizer mounting platform sides
inthefuselage.Slidethe stabilizerinplace and
re-align. Double check all of your
measurements one more time before the
epoxycures. Removeany excessepoxy using
a paper towel and rubbing alcohol and hold
the stabilizer in place with T-pins or masking
tape.
16. After the epoxy has fully cured, re-
move
the masking tape or T-pins used to hold the
stabilizer in place and carefully inspect the
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
rubbingalcohol.
Remove
covering.
Hinge.
Pen.
13.Markthe shape of the verticalon the left
and right sides onto the horizontal stabilizer
using a felt-tip pen
14. Remove the stabilizer. Using the lines
youjustdrew as aguide,carefully remove the
coveringfrom betweenthem usingamodeling
knife.
When cutting through the covering to
remove it, cut with only enough pressure to
only cut through the covering it’s self. Cutting
into the balsa structure may weaken it. This
could lead to possible failure during flight.
Temporary pin to
keep hinge centered.
Cutthe covering
awayfromthe slot.

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13. Markthe shapeof the verticalon theleft
and right side on the rudder using a felt-tip
pen.
11. Using a modeling knife, remove the
covering from over the precut hinge slot cut
into the rear portion of the fuselage. This slot
accepts the lower rudder hinge.
12. Slidetherudderintothefuselageassame
as picture below.
Hinge slot.
14. Now, remove the rudder and using a
modeling knife, carefully cut just inside the
markedlinesand removethefilm oftherudder.
Just as you did with the horizontal stabilizer,
make sure you only press hard enough to cut
the film, not the balsa rudder.
Pen.
C/Aglue.
Assemble then apply drops of thin
C/A to center of hinge,on both sides.
15. Slide the vertical stabilizer back in
place. Using a triangle, check to ensure
that thevertical stabilizer isaligned 90degree
to the horizontal stabilizer.
Remove covering.
16. 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
slotin themounting platformandtothevertical
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
stabilizerin placewith T-pinsormasking tape.
Allowtheepoxy tofullycure beforeproceeding.
90ºVertical
Stabilizer.
Horizontal
Stabilizer.

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Epoxy glue.
Drill 6mm a hole of the mounting rudder
control horn on to the rudder with 6mm
diameter.
Rudder control horn install as same as the
wayofaileron controlhorn.Pleasesee pictures
below.
A. RUDDER:
CONTROL HORN - PUSHROD
INSTALLATION.
C/Aglue.
M3 lock nut.Nilon
control clasp.
3mmx40mm.
Drill a hole
3mm diameter.

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Rudder cable. Rudder cable.
Rudder
control horn.
Rudder control horn.
B. ELEVATOR:
Elevator control horn install as same as pic-
tures below.
Controlhornofelevator
3mm x 40mm.
M3 lock nut.
Nilon
control clasp.
Markpoint
Drill 1 hole with 6 mm diameter.

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Elevator pushrod.
Bend and Cut
Elevator pushrod.
C/Aglue.
Elevator control horn.
Elevator
pushrod. Elevator
pushrod.

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Snapkeeper.
Throttle servo.
Rudder servo. Throttle.
Elevator
servo. Elevator
servo.
Install one adjustable metal connector
through the third hole out from the center of
one servo arm, enlarge the hole in the servo
armusinga 2mm drillbitto accommodate the
servo connector.Remove the excessmaterial
from the arm.
After installing the adjustable metal
connector apply a small drop of thin C/A to
thebottom nut. Thiswill prevent theconnector
from loosening during flight.
Servo arm.
Connector.
INSTALLING THE THROTTLE
PUSHROD.
Cut
Throttle
pushrod
1 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.
1 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-
derhinge lineandthe tailwheel bracketshould
be centered on the plywood plate.
MOUNTING THE TAIL WHEEL BRACKET.
1 3. Secure the tail wheel bracket in place
using three 3mm x 12mm wood screws. Be
careful not to overtighten the screws.

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11. Cutout theswitch holeusing amodeling
knife. Use a 2mm drill bit and drill out the two
mounting holes through the fuselage side.
12. Secure the switch in place using the
two machine screws provided with the radio
system.
INSTALLING THE SWITCH.
12. A drop of C/A glue on the wheel collar
screws will help keep them from coming lose
during operation.
11. Assembleand mountingthe wheelpants
as shown in the following pictures.
INSTALLING THE MAIN LANDING
GEAR.
13. The blind nuts are already mounted in-
side the fuselage.
14. Theholes inthelanding gearshould be
to accept the mounting bolts.
Repeat the process for the other wheel.