Black Horse Model BH08-A Owner's manual

SPECIFICATION
1Wingspan : 1,500 mm 59 in.
1Length :1,160 mm 46 in.
1Weight : 2.4 kg 5.28 lbs.
Partslistingrequired(notincluded):
1Radio : 04 channels.
1Servo : 05 servos.
1Engine : 40 - 46 2 stroke; 52 4 stroke.
1Electricmotor:BL2826/06OUTRUNER.
1 Battery:4cells-Li-Poly-14.8V-5,000mAh.
1 Speed control : 60A.
1 Propeller : 12 x 6.
Instruction Manual Book
Madein Vietnam.
Item code: BH08-A

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SPEED AIR-40 _Item code:BH08-A. 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 SPEED AIR-40.Use the parts listingbelow 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.
oThick cyanoacrylate glue.
o30 minute epoxy.
o5 minute epoxy.
oHand or electric drill.
oAssorted drill bits.
oModellingknife.
oStraightedge ruler.
o2mm ball driver.
oPhillips head screwdriver.
o220 grit sandpaper.
o90° square or builder’s triangle.
oWire cutters.
oMasking tape & T-pins.
oThread-lock.
oPaper towels.
Some more parts.
HARDWARE PACK
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
aircraft and to protect the table. Keep a cou-
ple 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 correct parts andthat they fit andare
alignedproperly before gluing! This will assure
proper assembly. SPEEDAIR-40ARFishand
made from natural materials, every plane 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 toler-
antofmanyharshchemicalsincludingthefol-
lowing: paint thinner, C/A glue accelerator, C/
Aglue debonder and acetone. Do not letthese
chemicals come in contact with the colors on
the covering and the plastic parts.
PARTS LISTING.
FUSELAGE ASSEMBLY
o(1) Fuselage.
WING ASSEMBLY
o(1) Right wing half with pre-installed
aileron.
o(1) Left wing half with pre-installed
aileron.
qSome more parts .....
o
Tail section assembly
o(1) Vertical stabilizer with pre-
installedrudder.
o(1) Horizontal stabilizer with pre-
installedelevator halves.
SUGGESTION.
NOTE.

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
+ 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.
+Theglowplug clip mustbesecurely 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.
Donot stand in linewith the side ofthe propel-
ler.
+ Make engine adjustments from behind the
propeller only. Do not reach around the spin-
ning propeller.
Caution: this model is not a toy!
If you are a beginner to this type of powered
model,please ask an experienced modelflyer
forhelp and support. If you attemptto operate
themodel without knowing what you are doing
you could easily injure yourself or somebody
else. Please keep your safety and well-being
in mind at all times.
Important: before you start construction
Even if you have already built a large number
ofRC models please readright through these
instructions and check all the kit components
against the parts list. We have taken great
trouble to keep construction as simple as
possible, without making any compromises
in the area of safety.
Note regarding the film covering
Minor creases or bubbles may develop in the
film covering due to major fluctuations in
weather conditions (temperature, humidity
etc.); in rare cases you may even find a slight
warp in a component. These minor faults are
in the nature of film-covered built-up wooden
structures, and can easily be corrected using
a heat gun, as commonly used for modelling.
Caution! do not heat the film more than is
absolutely necessary. If the air or the iron is
too hot, the film may melt and holes may be
formed.
This model is highly pre-fabricated and can
bebuiltinaveryshorttime.However,thework
which you have to carry out is important and
must be done carefully. The model will only
be strong and fly well if you complete your
taskscompetently-sopleasework slowly and
accurately.
When self-tapping screws have to be
screwed into wood, apply a little white glue
to prevent them shaking loose: just squirt
white glue into the hole and fit the screw.
Creases: Blowwarmair over the area
and rub down with a soft
cloth.
SAFETY PRECAUTION.
Wing warp: Holdthe paneltwistedgently
in the opposite direction to
the warp, and apply warm
air to remove the creases
from the covering.
REPLACEMENT LARGE PARTS
A. Fuselage.
B.Wings panel(B1&B2).
C.Horizontal stabilizer F.Aluminium tube wing
D. Vertical stabilizer

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
REPLACEMENT SMALL PARTS
4.Spinner.
3.Fuel Tank.
5. Wheels.
2. Nose gear
1.Mainlanding gear.
SERVO INSTALLATION.
1 1. Install the rubber grommets and brass
eyelets onto the aileron servo.
INSTALLING THE AILERON SERVOS.
Cutthe covering
awayfromtheslot.
Top side
Bottom side.
aileron
6.Electric motor ply of wood (A,B).
3x15mm
3x12mm
a.Steeringarm.
3x15mm
3x15mm
3x12mm

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
1 2.Using a modeling knife, remove thecov-
ering servo tray.
Temporary pin to
keep hinge centered.
Assemble then apply drops of thin
C/A to center of hinge,on both sides.
13.Drill 1,5mm pilot holes through the block
of wood for each of the four mounting screws
provided with the servo. Install servo into ai-
leron servo tray as same as picture below.
14. 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.
Bottom side.
Thread.
Electric wire.
Removecovering.
Servotray.
Servotray.
Remove
covering

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
11. Using a ruler & pen to draw a straight
line as below picture.
Installaileroncontrolhornassame
aspicturebelow.
Controlhorn of Aileron
2 x16mm.
1 2. Drill through 1.5mm (diameter) the ai-
leron using the control horn as a guide and
screw the control horn in place.
15. Instal servo tray with aileron servo into
the wing as same as picture below.
Secure.
2 x 10 mm.
Repeat the procedure for the other wing
half.
INSTALLINGTHEAILERON CONTROL HORN.
Markline.
Bottom side.
Drill a hole
1.5mm

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
13. Plug the aileron servo into the receiver
andcenter theservo.Install theservoarm onto
the servo. The servo arm should be perpen-
dicular to the servo and point toward the mid-
dle of the wing.
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
out from the center of the arm to accommo-
date the aileron pushrod wire.
15.Using pliers, carefully make a 90 degree
bend down at the mark made. Cut off the ex-
cess wire, leaving about 4mm beyond the
bend.
Secure
Controlhornof
Aileron
11. Working with the aileron linkage for
now, thread one 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.
Attach the clevis to the outer hole in the con-
trol horn.
INSTALLING THE AILERON
LINKAGES.
Bend and
cut after.
16.Insert the90degree bend down through
the hole in the servo arm. Install one nylon
snap keeper over the wire to secure it to the
arm. Install the servo arm retaining screw and
remove the masking tape from the aileron.

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
Repeat the procedure for the other wing
half.
Snapkeeper
MAIN GEAR INSTALATION.
PARTSREQUIRED
Aileronpushrod.
3x15mm
4x12mm
Secure.

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
Remove
covering.
3x15mm
A+B Epoxy
PLUS Glue
Secure.
Secure.

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
Repeat the procedure for the other main
gear wheel.
INSTALLING THE ENGINE MOUNT.
THERE ARE TWO OPTIONS:
1. ELECTRIC MOTOR
2. ENGINE MOUNT.
1. OPTION 1: ELECTRIC MOTOR.
3 x 15mm 3x 15mm
Epoxy glue
C/Aglue
Secure.
Battery

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
INSTALLING THE ENGINE MOUNT.
NOSE GEAR INSTALLATION.
Installing steering arm as follow
Adjust the nose gear steering arm until the
arm is parallel with the fire wall.
Front view.
ESC
2. ENGINE MOUNT.
Steering arm.
Secure.

12
SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
Locate the long piece of wire used for the
throttlepushrod. One end of the wire has been
pre-bend in to a “Z” bend at the factory. This
“Z” bend should be inserted into the throttle
armof theenginewhen theengineis fittedonto
theenginemount.Fittheenginetotheengine
mount using the screws provided.
INSTALLING THE ENGINE.
Mark point.
Drill a hole 2.5mm
diameter
Secure.
Front view.

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
3x 20mm
Secure.
Left side.
INSTALLING THE STOPPER ASSEMBLY
o1) The stopper has been pre-assembled at
the factory.
2) Using a modeling knife, cut one length of
siliconfuel line (the length ofsilicon fuel line is
calculated by how the weighted clunk should
restabout 8mm away from therear of the tank
andmove freely inside the tank). Connectone
end of the line to the weighted clunk and the
otherend to the nylon pick uptubein the stop-
per.
FUEL TANK.
Throttle wire.
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.
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 tubewillbeventtubetothefueling valve.
Vent tube
Fuelfilltube
Fuel pick- up tube
silicon tube not
included.

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
5)Testfit the stopper assemblyinto the tank.
It may be necessary to remove some of the
flashing around the tank opening using a
modeling knife. If flashing is present, make
sure none of it falls into the tank.
6) When satisfied with the alignment of the
stopper assembly tighten the 3mm x 20mm
machine screw until the rubber stopper ex-
pandsand seals the tank 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.
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.
9) To secure the fuel tank in place, apply a
bead of silicon sealer to the forward area of
thetank, where it exits the fuselage behind the
enginemounting boxandto therearof thetank
at the forward bulkhead.
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.
8)Feedthreelinesthroughthefuel tank com-
partmentand throughthepre-drilledhole inthe
firewall. Pull the lines out from behind the en-
gine,whileguidingthefueltankintoplace.Push
the fuel tank as far forward as possible, the
front of the tank should just about touch the
back of the firewall.
Fueltank.
11. Install one adjustable metal connector
through the third hole out from the center of
one servo arm, enlarge the hole in the servo
armusing a 2mm drill bitto 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.
INSTALLING THE THROTTLE SERVO.
Throttle servo

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
secure.
Throttle servo
Throttle wire.
Front view.
Installthespinnerbackplate,propellerand
spinner cone. The spinner cone is held in
place using two 3mm x 12mm wood screws.
INSTALLING THE SPINNER.
Secure.
3x 12mm

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
11. Install the rubber grommets and brass
colletsinto theelevatorservo. Testfittheservo
into the servo tray.
12. Mount the servo to the tray using the
mountingscrewsprovided with your radio sys-
tem.
ELEVATOR INSTALLATION.
SERVO INSTALLATION.
Elevator servo.
Elevator servo.
HORIZONTAL STABILIZER INSTALLATION.
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
awayfromtheslot.
Top side
Bottom side
Bottom side

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
o2) Using a ruler and a pen, locate the
centerlineofthe horizontalstabilizer, atthetrail-
ingedge, and place a mark.Useatraingleand
extend this mark, from back to front, across
the top of the stabilizer. Also extend this mark
downthe back of the trailing edgeofthe stabi-
lizer.Then slidethehorizontal stabilizertheinto
the fuselage.
3 1. Using amodeling knife, cut away the
covering from the fuselage for the stabilizer
and remove it.
Remove covering.
Check to mark sure the wing and stabi-
lizerare paralell. If they arenot, lightly sand
theopeninginthefuselagefor the stabilizer
until the stabilizer is paralell to the wing.
Center line.
14. Remove the stabilizer. Using the lines
youjust drew as a guide,carefully remove the
coveringfrom between them using a modeling
knife.
33. With the stabilizer held firmly in place,
use a pen and draw lines onto the stabilizer
where it and the fuselage sides meet. Do this
on both the right and left sides and top and
bottom of the stabilizer.
Markpen
Remove
covering.

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
o6) When you a sure that everything is
aligned correctly, mix up a generous amount
of 30 Minute Epoxy. Apply a thin layer to the
topand bottom of the stabilizer mountingplat-
form sides in the fuselage. Slide the stabilizer
in place and realign. Double check all of your
mea-surements once more before the epoxy
cures. Hold the stabilizer in place with T-pins
or masking tape and remove any excess ep-
oxy using a paper towel and rubbing alcohol.
When cutting through the covering to re-
move it, cut with only enough pressure to
only cut through the covering itself. Cut-
ting into the balsa structure may weaken
it.
35. Using a modeling knife, carefully re-
move the covering that overlaps the stabilizer
mounting platform sides in the fuselage. Re-
move the covering from both the top and the
bottom of the platform sides.
Epoxy glue.
o7) After the epoxy has fully cured, remove
the masking tape or T-pins used to hold the
stabilizer in place. Carefully inspect the glue
joints. Use more epoxy to fill in any gaps that
may exist that were not filled previously and
clean up the excess using a paper towel and
rubbingalcohol.
Top side
Remove covering.
Top side.
Epoxy glue.
Bottom side.
C/Aglue.

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
Elevator control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
Control horn of elevator.
o1) Drill through1.5mm (diameter) the el-
evator using the control horn as a guide and
screw the control horn in place.
Bottom side
12) Install control horn as same as picture
below.
Elevatorpushrodinstall as same as the way
of aileron pushrod.
Markpoint and
drill 1.5mm.
2x12mm
ELEVATOR CONTROL HORN INSTALLA-
TION.
Secure.
Elevator
pushrod.
Bottom side
ELEVATOR PUSHROD INSTALLATION.
Control horn
of elevator.

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SPEED AIR-40 _Item code:BH08-A. Instruction Manual.
Elevator
pushrod.
Elevator
pushrod.
Top side
bend
connector.
servo arm
Rudder pushrod.
Nose gear pushrod.
Rudder servo.
Rudder servo install as same as method of
elevator servo. See picture below:
RUDDER SERVO INSTALLATION.
Elevator pushrod.