Black Horse Model MIDGET MUSTANG-EP Owner's manual

SPECIFICATION
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Wingspan : 1,000 mm 39.37 in.
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Length : 860 mm 33.86 in.
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Weight : 1,4 kg 3.08 Lbs.
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Radio : 04 channels.
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Servo : 04 mini servos.
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Motor : KMS 2820/05.
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Battery : 3Cells-Li-Poly-11.1V2.200mAh.
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Speedcontrol:40A.
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Propeller:10x10.
Instruction Manual book
MadeinVietnam.

MIDGET MUSTANG-EP - Item code: BH81 . 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-EP.Usethepartslisting
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
proceduresdesignedtohelp the new pilotonhiswaytosuccessfulR/Cflight.Theywill also be able
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 air-
craftand to protect thetable.Keepa couple of
jars or bowls handy to hold the small parts af-
ter you open the bag.
Pleasetrialfitalltheparts.Makesureyouhave
thecorrectpartsandthattheyfitandarealigned
properly before gluing! This will assure proper
assembly.MIDGET MUSTANG-EPIARF is hand
made from natural materials, every plane is
uniqueand minor adjustmentsmay havetobe
made. However, you should find the fit supe-
rior 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-
installedelevatorhalves.
SUGGESTION.
NOTE.

MIDGET MUSTANG-EP - Item code: BH81 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 clipmustbesecurelyattached
to the glow plug.
+ Do not flip the propeller with your fingers.
+ Keep loose clothing and wires away from
thepropeller.
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
A.
B. B.
C.
D.
E.
F.
 1) Install the rubber grommets and brass
eyelets onto the aileron servos.
1.INSTALLING THE AILERON SERVOS.
I.AILERON.
1.Spinner.
2. Wheel spat.
3. Wheels
4. Gear set.
5.Plastic part gear set.
1. 2. 3. 2.
5.
4.
Top side
Aileron
Bottom side

MIDGET MUSTANG-EP - Item code: BH81 . Instruction Manual
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 2)Using a modelingknife,removethe cov-
ering at possition show below. Remove
covering
 4)Drill 1,6mmpilot holesthroughthe block
of wood for each of the four mounting screws
provided with the servo.
 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.
 5. Instal servo tray with aileron servo into
the wing as same as picture below.
Secure
C/Aglue
C/Aglue
C/Aglue
Bottom side Bottom side
Electric wire
thread
C/Aglue

MIDGET MUSTANG-EP - Item code: BH81 INSTRUCTION MANUAL
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Bottom side
Secure
1) Using a ruler & pen to draw a straight
line as below picture.
2)Insertaileron control horn tothe aileron.
 3) Drill two 2mm holes through the aileron
using the control horn as a guide and screw
the control horn in place.
2x10mm.
Pen.
2mm X 12mm.
INSTALLING THE AILERON
CONTROL HORN.
Straitghline.
Secure.
Drill 2mm
hole

MIDGET MUSTANG-EP - Item code: BH81 . Instruction Manual
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Repeat the procedure for the other wing
half.
Aileronpushrod.
Aileronpushrod.
INSTALLING THE AILERON
LINKAGES.
INSTALLING THE WING TIP
Epoxyglue.
Epoxyglue.
Repeat the procedure for the other wing
half.
Top side
Bottom side
C/Aglue

MIDGET MUSTANG-EP - Item code: BH81 INSTRUCTION MANUAL
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PARTSREQUIRED
MAIN GEAR INSTALATION.
Removecovering
3 x 12mm
Markpoint
Secure

MIDGET MUSTANG-EP - Item code: BH81 . Instruction Manual
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C/Aglue
3 x 12mm
Drill 2mm
hole
Secureglue
Cut.
Cut

MIDGET MUSTANG-EP - Item code: BH81 INSTRUCTION MANUAL
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C/A glue
INSTALLING ELECTRIC MOTOR.
See pictures below:
Motor mount wood
3 x 15mm
Repeat the procedure for the other wing
half.
C/Aglue.

MIDGET MUSTANG-EP - Item code: BH81 . Instruction Manual
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Epoxyglue.
Push
C/Aglue.
Epoxyglue.
Secure.
Front view.
Right side
Rotor shaft
Motor

MIDGET MUSTANG-EP - Item code: BH81 INSTRUCTION MANUAL
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 1. Slide the fiberglass cowl over the en-
gineandlineup the back edgeof the cowlwith
the marks you made on the fuselage.
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.
3. Slide the cowl back over the engine
andsecureit in placeusingfourwood screws.
See picture below.
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 x 12mm
Right side
Machine screw.
Right side
Left side
COWLING.
Left side
Installthespinnerbackplate,propeller and
spinner cone. The spinner cone is held in
place using two 3mm x 12mm wood screws.
3 x 12mm
INSTALLING THE SPINNER.
Bottom side.

MIDGET MUSTANG-EP - Item code: BH81 . Instruction Manual
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 1. Install the rubber grommets and brass
colletsintotheelevatorservo.Testfittheservo
into the servo tray.
 2. Mount the servo to the tray using the
mountingscrewsprovidedwithyour radio sys-
tem.
SERVO INSTALLATION.
ELEVATOR INSTALLATION.
C/Aglue
C/Aglue
HORIZONTAL STABILIZER.
See pictures below:
Secure.
Bottom side
Top side

MIDGET MUSTANG-EP - Item code: BH81 INSTRUCTION MANUAL
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C/Aglue
C/Aglue
 1. Draw a center line onto the horizontal
stabilizer. Then slide the horizontal into the
fuselage.
C/Aglue
 2 Using a modeling knife, cut away the
covering from the fuselage for the stabilizer
and remove it.
Removecovering
 3. Markthe shape ofthevertical on theleft
and right sides onto the horizontal stabilizer
using a felt-tip pen
Center line
 4. Remove the stabilizer. Using the lines
youjust drew asaguide, carefully removethe
coveringfrombetweenthem using a modeling
knife. When cutting through the cover-
ingto remove it, cut with only enough pres-
sure to only cut through the covering it’s
self. Cutting into the balsa structure may
weaken it. This could lead to possible fail-
ure during flight
Bottom side
Markline
Removecovering

MIDGET MUSTANG-EP - Item code: BH81 . Instruction Manual
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C/Aglue
Elevator control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
ELEVATOR CONTROL HORN INSTALLA-
TION.
Markpoint
2*12mm.
 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 bottom of thestabilizermounting area
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.
6.After the epoxy has fully cured, remove
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
Epoxyglue

MIDGET MUSTANG-EP - Item code: BH81 INSTRUCTION MANUAL
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Drill a hole 2mm
diameter.
Elevator andrudder pushrod installas same
as the way of aileron pushrod.
M2 M2 lock nut.
ELEVATOR PUSHROD INSTALLATION.
C/Aglue.
Topside
Elevator
pushrod Elevator
pushrod
Bottom side
Secure.

MIDGET MUSTANG-EP - Item code: BH81 . Instruction Manual
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Rudder servo install as same as method of
elevator servo. See picture below:
VERTICAL INSTALLATION.
C/Aglue
Cut
Secure
Secure
C/A glue.
Elevatorservo.
Secure
Elevatorpushrod.
Elevatorservo.

MIDGET MUSTANG-EP - Item code: BH81 INSTRUCTION MANUAL
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C/Aglue
C/Aglue
C/Aglue
Removecovering.
 1. Using a modeling knife cut away the
coveringfromtheendoffuselage fortherud-
derhinge.
Hingleslot
Markpoin
 3. Mark the shape of the vertical on the
leftandright side of therudderonto the hori-
zontal stabilizer using a felt-tip pen.
 2. Put the rudder into the fuselage as
same as picture below.
 4. Now, remove the rudder and using a
modeling knife, carefully cut just inside the
marked lines and remove the film of the rud-
der. Just as you did with the horizontal stabi-
lizer, make sure you only press hard enough
to cut the film, not the balsa rudder.

MIDGET MUSTANG-EP - Item code: BH81 . Instruction Manual
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 5. Put the vertical stabilizer back in
place. Using a triangle, check to ensure
that the vertical stabilizer is aligned 90 de-
gree to the horizontal stabilizer.
 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
slot in the mounting platform and to the verti-
cal 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 placewithT-pins ormaskingtape.
Allow the epoxy to fully cure before proceed-
ing.
Epoxyglue
Epoxyglue
Epoxyglue
C/Aglue
C/Aglue
C/Aglue
Remove
covering
 Also carefully remove the covering from
the horizontal fin as below the lines which
you drew as same picture below.

MIDGET MUSTANG-EP - Item code: BH81 INSTRUCTION MANUAL
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Rudder control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
RUDDER CONTROL HORN INSTALLA-
TION.
Markpoint
Drill a hole
2mm diameter
M2 M2 lock nut.
Secure
Rudder pushrod install as same as the way
of aileron pushrod.
RUDDER PUSHROD INSTALLATION.
Rudder pushrod.
Rudder
control horn

MIDGET MUSTANG-EP - Item code: BH81 . Instruction Manual
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Tie wrap.
C/Aglue

2. Wrap the receiver and battery pack in
the protective foam to protect them from vi-
bration.Use a rubberband ormaskingtape to
hold the foam in place.

3. Position the battery pack and receiver
behind the fuel tank. Use two tie wraps to
holdthebatteryandreceiversecurelyinplace.
As pictures below.
Do not permanently secure the receiver
and battery until after balancing the model.

4. Usinga2mmdrill bit, drill aholethrough
the side of the fuselage, near the receiver,
for the antenna to exit.
INSTALLINGTHERECEIVERAND BATTERY.
 1. Plug the servo leads and the switch
leadintothe 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.
Tie wrap.
Battery
Elevator
pushrod.
Rudder
pushrod.
Elevator
pushrod.
Rudder
pushrod.
Elevator
pushrod.
C/Aglue
Rudder servo.