Black Horce Model JU87-STUKA BH80 Owner's manual

SPECIFICATION


Wingspan : 1,920 mm 75.59 in.


Length : 1,560 mm 61.42 in.


Weight : 5 kg 11.00Lbs.


Radio : 06 channels.


Servo : 09 servos.


Engine : 120 4 stroke.
Instruction Manual book
MadeinVietnam.

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JU87-STUKA - Item code: BH80 . Instruction Manual
This instruction manual is designed to help you build a great flying aeroplane. Please read this
manual thoroughly before starting assembly of your JU87-STUKA. Use the parts listing 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
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,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 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. JU87-STUKA is hand made
from natural materials, every plane is unique
andminor adjustmentsmayhave 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 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.

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JU87-STUKA - Item code: BH80 . Instruction Manual
+ 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 clipmust besecurelyattached
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. Horizontal stabilizer.
F. Aluminium wing dihedral brace.
E.Vertical stabilizer.
REPLACEMENT SMALL PARTS
3a. Plastic bomb.
2. Oleo Strut
5. Plastic - enginemount.
6. Tail gear set.
8. Fuel tank.
9.Spinner
10. Horizontal stabilizer struts.
14. Plastic top wing.
12.Plastic fairing for landing gear.
1) Install the rubber grommets and brass
eyelets onto the aileron servos.
1.INSTALLING THE AILERON SERVOS.
I. AILERON.
11.Antenna top cannopy.
4. Wheel pants.
13. Wheels.
3b. Plastic bomb 2.
1. Under carriage struts.
A.
B. B.
C. D.
E.
F.
Bottom side
Aileron
Flap 1
Flap 2
7. Plastic fairing for tail gear set.
4.
1.
2.
6.
5.
9.
12.
14.
13.
8.
10.
7.
3a.
3b.
11.

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JU87-STUKA - Item code: BH80 . Instruction Manual
4)Drill 1,6mmpilot holesthroughtheblock
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.
Secure
2)Using amodeling knife,remove thecov-
ering at possition show below.
Bottom side
5. Instal servo tray with aileron servo into
the wing as same as picture below.
Secure
Bottom side
Remove
covering
Electric wire
thread Remove
covering
2x10mm.
M3 lock nut. 3mm x 40mm.
Nilon control clasp.
Aileroncontrolhorn
2.INSTALLING THE AILERON CON-
TROL HORN.

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JU87-STUKA - Item code: BH80 . Instruction Manual
C/Aglue.
Installing the aileron linkages as pictures
below.
3.INSTALLING THE AILERON
LINKAGES.
Thread
M2 lock nut
115mm
M2
1.1. INSTALLING THE FLAP 1 SERVOS.
Repeat the procedure for the other wing
half.

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JU87-STUKA - Item code: BH80 . Instruction Manual
Flap control
horn.
Installing the flap1 linkages as pictures
below.
2.3. INSTALLING THE FLAP1
LINKAGES.
Secure
Bottom side
Bottom side
Removecovering
M2 lock nut
150mm
M2
Electricwire.
M3 lock nut. 3mm x 40mm.
Nilon control clasp.
2.2.INSTALLING THE FLAP 1 CONTROL HORN.

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JU87-STUKA - Item code: BH80 . Instruction Manual
Removecovering
Installing the flap2 linkages as pictures
below.
3.3. INSTALLING THE FLAP2
LINKAGES.
M2 lock nut
M2
155mm
M3 lock nut.
3mm x 40mm.
Nilon control clasp.
3.2.INSTALLING THE FLAP 2 CONTROLHORN.
Repeat the procedure for the other wing
half.
3.1.INSTALLING THE FLAP 2 SERVOS .

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JU87-STUKA - Item code: BH80 . Instruction Manual
PARTSREQUIRED
MAIN GEAR INSTALATION.
Drill 2mm
hole
3 x 12mm
Secure
Repeat the procedure for the other wing
half.
Aileron
Flap2 Flap1
3x15mm 3x15mm
3 x 10mm
3 x 12mm
3 x 10mm

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JU87-STUKA - Item code: BH80 . Instruction Manual
Drill 2mm
hole
Secure
Plastic fairing for landing gear.
3x 15mm

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JU87-STUKA - Item code: BH80 . Instruction Manual
Secure
Secure
Secure

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JU87-STUKA - Item code: BH80 . Instruction Manual
C/A glue
3x10mm.
Drill a hole
2mmdiameter
Drill a hole
2mmdiameter
Secure
C/A glue
Plastic bomb2.

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JU87-STUKA - Item code: BH80 . Instruction Manual
C/A glue
Epoxy glue.
Repeat the procedure for the other wing
half.
FUSELAGE TOP HATCH

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JU87-STUKA - Item code: BH80 . Instruction Manual
Epoxy glue.
C/A glue
C/A glue
C/A glue
C/A glue

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JU87-STUKA - Item code: BH80 . Instruction Manual
INSTALLING THE ENGINE MOUNT.
See pictures below:
4x 30mm
4x 30mm
INSTALLING THE STOPPER ASSEMBLY
1.Thestopper hasbeen pre-assembledat
the factory.
FUEL TANK.
2.Using amodeling knife,cut onelength of
siliconfuelline (thelength ofsilicon fuellineis
calculated by how the weighted clunk should
restabout 8mmaway fromtherearofthetank
andmove freelyinside thetank). Connectone
end of the line to the weighted clunk and the
otherend tothenylonpickuptubein thestop-
per.
3.Carefully bendthesecondnylontubeup
ata 45degreeangle (usingacigarettelighter).
This tube will be the vent tube to the muffler.
4.Carefully bendthethirdnylontube down
ata 45degreeangle (usingacigarettelighter).
This tubewill bevent tubeto thefuelingvalve.
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.
Drill a hole
4mmdiameter
silicon not
included.

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JU87-STUKA - Item code: BH80 . Instruction Manual
6. When satisfied with the alignment of the
stopper assembly tighten the 3mm x 20mm
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.
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.
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.
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.
Vent tube Fuel pick- up tube
Fuelfilltube
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 andtotherearof thetank
at the forward bulkhead.
Fueltank

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JU87-STUKA - Item code: BH80 . Instruction Manual
150mm
Markpoint
Drill a hole
4mm diameter.
4 x 30mm
Secure
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 enginewhen theengineisfitted onto
theengine mount.Fittheengineto theengine
mount using the screws provided.
INSTALLING THE ENGINE.

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JU87-STUKA - Item code: BH80 . Instruction Manual
2. While keeping the back edge of the
cowl flush with the marks, align the front of
thecowlwiththe crankshaftofthe engine. 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. Installthemufflerandmuffler 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. Slide the cowl back over the engine
andsecure itin placeusing fourwood screws.
See picture below.
Right side
Trim and
cut after.
Leftside
Right side
Leftside
Machine screw.
1. Slide the fiberglass cowl over the en-
gineand lineup thebackedgeofthe cowlwith
the marks you made on the fuselage.
COWLING.
Pushrod wire

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JU87-STUKA - Item code: BH80 . Instruction Manual
1. 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.
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.
Throttle servo
INSTALLING THE THROTTLE PUSHROD.
Front view Secure
INSTALLING THE SPINNER.
Installthe spinnerbackplate,propellerand
spinner cone. The spinner cone is held in
place using two 3mm x 12mm wood screws.
Secure

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JU87-STUKA - Item code: BH80 . Instruction Manual
SERVO INSTALLATION.
ELEVATOR INSTALLATION.
1. Install the rubber grommets and brass
colletsintothe elevatorservo.Testfit theservo
into the servo tray.
2. Mount the servo to the tray using the
mountingscrews providedwithyourradiosys-
tem.
Cut
See pictures below:
Cut
HORIZONTALSTABILIZER.
Secure

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JU87-STUKA - Item code: BH80 . Instruction Manual
C/Aglue
C/Aglue
C/Aglue
Cut
C/Aglue