Black Horse Model Midget Mustang Owner's manual

SPECIFICATION
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Wingspan : 1,450 mm 57.09 in.
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Length : 1,200mm 47.24in.
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Weight : 3.1 kg 6.82 Lbs.
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Radio : 05 channels.
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Servo : 07 servos.
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Engine : 61-75 2 stroke.
91 4 stroke.
Instruction Manual book
MadeinVietnam.

MIDGET-MUSTANG - Item code: BH83 . Instruction Manual
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This instruction manual is designed to help you build a great flying aeroplane. Please read this
manualthoroughlybeforestartingassemblyofyour MIDGET-MUSTANG.Usethepartslistingbelow
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 pilotonhiswaytosuccessfulR/C flight.Theywillalso beable
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.....
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-
craftand toprotect thetable.Keepacoupleof
jars or bowls handy to hold the small parts af-
ter you open the bag.
Pleasetrialfitalltheparts. Makesureyouhave
the correct parts and that they fit and are
alignedproperly beforegluing!Thiswillassure
proper assembly.MIDGET-MUSTANG ARF is
handmadefromnaturalmaterials,everyplane
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:paintthinner,C/Aglueaccelerator,C/Aglue
debonderandacetone. Donotletthesechemi-
cals 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-
installedelevator halves.
SUGGESTION.
NOTE.

MIDGET-MUSTANG - Item code: BH83. 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.
+Theglowplug clipmustbesecurely attached
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.
Donot standinlinewiththesideof thepropel-
ler.
+ Make engine adjustments from behind the
propeller only. Do not reach around the spin-
ningpropeller.
SAFETY PRECAUTION.
REPLACEMENT LARGE PARTS
B. Wing panel.
C. Fuselage.
A.Cowling. D . Horizon stabilizer.
F. Aluminium wing dihedral brace.
E.Vertical stabilizer.
REPLACEMENT SMALL PARTS
G. Decal sheet.
3. Plastic - enginemount.
5. Fuel tank.
2. Wheels
7.Spinner.
4. Tail gear set.
8. Wheel spant.
6. Plastic parts for pushrod.
 1) Install the rubber grommets and brass
eyelets onto the aileron servos.
1.INSTALLING THE AILERON SERVOS.
I.AILERON.
1. Aluminium landing gear.
1.
2. 2.
3. 4. 5.
6. 7.
8.
A.
B.
B.
C.
D.
F.
E.
Flap
Bottom side
Aileron
Aileron Flap

MIDGET-MUSTANG - Item code: BH83 . Instruction Manual
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 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.
Secure
C/Aglue
C/Aglue
C/Aglue
C/Aglue
 2)Usinga modelingknife, removethe cov-
ering at possition show below.
Remove
covering
C/Aglue
C/Aglue
Flap Aileron
Bottom side

MIDGET-MUSTANG - Item code: BH83. INSTRUCTION MANUAL
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 4) Drill1,6mm pilotholes throughtheblock
of wood for each of the four mounting screws
provided with the servo.
 5. Instal servo tray with aileron servo into
the wing as same as picture below.
thread
Electric wire
Secure
Bottom side
2.INSTALLING THE FLAP CONTROL HORN.
2x10mm.
3mm x 40mm.
Nilon control clasp.
M3 lock nut.
Aileroncontrolhorn

MIDGET-MUSTANG - Item code: BH83 . Instruction Manual
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Aileron
control
horn.
Installing the aileron linkages as pictures
below.
C/Aglue
3.INSTALLING THE AILERON
LINKAGES.
80mm
M2 lock nut
Repeat the procedure for the other wing
half.

MIDGET-MUSTANG - Item code: BH83. INSTRUCTION MANUAL
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II. FLAP.
1.INSTALLING THE FLAP SERVOS.
Servo tray
Electric
wire
Thread
2x10mm.
C/Aglue
C/Aglue
2.INSTALLING THE FLAP CONTROL HORN.
3mm x 40mm.
Nilon control clasp.
M3 lock nut.

MIDGET-MUSTANG - Item code: BH83 . Instruction Manual
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Flap control
horn.
Installing the aileron linkages as pictures
below.
M2
M2 lock nut
80mm
3. INSTALLING THE FLAP
LINKAGES.
C/Aglue.
Flap Aileron
Repeat the procedure for the other wing
half.

MIDGET-MUSTANG - Item code: BH83. INSTRUCTION MANUAL
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PARTSREQUIRED
MAIN GEAR INSTALATION.
Markpoint
Secure

MIDGET-MUSTANG - Item code: BH83 . Instruction Manual
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Secure
Secure
Repeat the procedure for the other wing
half.

MIDGET-MUSTANG - Item code: BH83. INSTRUCTION MANUAL
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INSTALLING THE ENGINE MOUNT.
See pictures below:
4x 30mm
4x 30mm
Drill a hole
5mmdiameter
INSTALLING THE STOPPER ASSEMBLY
 1) The stopper has been pre-assembled
at the factory.
 2) Using a modeling knife, cut one length
ofsilicon fuelline(thelengthofsiliconfuel line
iscalculatedbyhowtheweightedclunkshould
restabout 8mmaway fromtherearofthetank
andmove freelyinside thetank). Connectone
end of the line to the weighted clunk and the
otherend tothenylonpickuptubein thestop-
per.
 3)Carefullybendthesecondnylon tubeup
ata 45degreeangle (usingacigarettelighter).
This tube will be the vent tube to the muffler.
 4)Carefullybendthethirdnylontubedown
ata 45degreeangle (usingacigarettelighter).
This tubewill bevent tubeto thefuelingvalve.
FUEL TANK.
When the stopper assembly is installed
in the tank, the top of the vent tube should
rest just below the top surface of the tank.
It should not touch the top of the tank.

MIDGET-MUSTANG - Item code: BH83 . Instruction Manual
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 6) When satisfied with the alignment of
thestopperassemblytightenthe3mmx20mm
machine screw until the rubber stopper ex-
pandsand sealsthetank opening.Do notover
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.
 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. Ifflashing is present, make
sure none of it falls into the tank.
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.
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, whereit exitsthefuselage behindthe
enginemountingbox andtotherearofthetank
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,the frontofthetankshould justabout
touch the back of the firewall.
Secure
Vent tube
Fuelfilltube
Fuel pick- up tube

MIDGET-MUSTANG - Item code: BH83. INSTRUCTION MANUAL
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Fueltank
Locate the long piece of wire used for the
throttlepushrod. Oneendofthewire hasbeen
pre-bend in to a “Z” bend at the factory. This
“Z” bend should be inserted into the throttle
armofthe enginewhentheengine isfittedonto
theengine mount.Fittheengineto theengine
mount using the screws provided.
INSTALLING THE ENGINE.
115mm
Markpoint
Drill 2mm
diameter.
Secure
4 x 30mm

MIDGET-MUSTANG - Item code: BH83 . Instruction Manual
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Cut
Pushrod
wire
Right side.
Left side.
COWLING.
Top side
2. While keeping the back edge of the
cowl flush with the marks, align the front of
thecowlwiththecrankshaftoftheengine. 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.
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 fillervalve.
3. Slide the cowl back over the engine
andsecure itin placeusing fourwood screws.
See picture below.
 1. Slide the fiberglass cowl over the en-
gineand lineup thebackedgeofthe cowlwith
the marks you made on the fuselage.
Trim and cut
Bottom side
Bottom side

MIDGET-MUSTANG - Item code: BH83. INSTRUCTION MANUAL
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Right side
Left side
Front view.
Bottom side
Left side
Trim and cut
Installthe spinnerbackplate,propellerand
spinner cone. The spinner cone is held in
place using two 3mm x 12mm wood screws.
3 x 12mm
Install one adjustable metal connector
through the third hole out from the center of
one servo arm, enlarge the hole in the servo
arm using a 2mm drill bit to accommodate the
servo connector. Remove the excess mate-
rial from the arm.
INSTALLING THE THROTTLE PUSHROD.
Secure.
INSTALLING THE SPINNER.

MIDGET-MUSTANG - Item code: BH83 . Instruction Manual
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After installing the adjustable metal con-
nector apply a small drop of thin C/A to
the bottom nut. This will prevent the con-
nector from loosening during flight.
Connector.
Servo arm.
Throttle servo
Secure
Cut
SERVO INSTALLATION.
ELEVATOR INSTALLATION.
 2. Mount the servo to the tray using the
mountingscrews providedwithyourradiosys-
tem.
 1. Install the rubber grommets and brass
colletsintotheelevatorservo.Test fittheservo
into the servo tray.
See pictures below:
HORIZONTAL STABILIZER.
Throttle pushrod

MIDGET-MUSTANG - Item code: BH83. INSTRUCTION MANUAL
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C/Aglue
C/Aglue
C/Aglue
C/Aglue
C/Aglue
C/Aglue
C/Aglue
 1. Draw a center line onto the horizontal
stabilizer. Then slide the horizontal into the
fuselage.

MIDGET-MUSTANG - Item code: BH83 . Instruction Manual
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 2 Using a modeling knife, cut away the
covering from the fuselage for the stabilizer
and remove it.
Centerline
 3. Mark theshape ofthe verticalonthe left
and right sides onto the horizontal stabilizer
using a felt-tip pen
Removecovering.
Markline
 4. Remove the stabilizer. Using the lines
youjustdrew asa guide,carefully removethe
coveringfrom betweenthem usingamodeling
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.
Removecovering.
Check to mark sure the wing and stabi-
lizer are paralell. If they are not, lightly sand
theopening inthefuselageforthe stabilizer
until the stabilizer is paralell to the wing.

MIDGET-MUSTANG - Item code: BH83. INSTRUCTION MANUAL
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 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
topand bottomofthestabilizermountingarea
and to the stabilizer mounting platform sides
inthefuselage.Slidethestabilizerinplaceand
re-align. Double check all of your measure-
ments one more time before the epoxy cures.
Remove any excess epoxy using a paper
towel and rubbing alcohol and hold the stabi-
lizer in place with T-pins or masking tape.
Epoxyglue.
 6. 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.
C/Aglue.
C/Aglue.
Elevator control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
ELEVATOR CONTROL HORN
PUSHROD INSTALLATION.
3mm x 40mm.
Nilon control clasp.
M3 lock nut.
C/Aglue.

MIDGET-MUSTANG - Item code: BH83 . Instruction Manual
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Elevator
control horn.
M2 M2 lock nut.
Elevator pushrodinstall assame asthe way
of aileron pushrod.
ELEVATOR PUSHRODINSTALLATION.
Secure
Elevator
pushrod Elevator
pushrod
Secure
Elevator servo