Black Horse Model SU-26M Owner's manual

Instruction Manual book
SPECIFICATION
MadeinVietnam.


Wingspan : 2,240mm. 88.19 in.


Length : 1,950 mm. 76.77 in.


Weight : 8.5kg. 18.7 lbs.


Radio : 8 channels.


Servo : 8 servos.
(JR DS: 8321-FUTABA: BLS252).


GlowEngine: OSGT 55-62ccgas.
ITEM CODE: BH96.

2
SU-26M - ITEM CODE: BH96.Instruction Manual
This instruction manual is designed to help you build a great flying aeroplane. Please read this
manualthoroughlybeforestartingassemblyofyour SU-26M.Usethepartslistingbelowtoidentify
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 thenewpilotonhis waytosuccessfulR/Cflight.They willalsobeable
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 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-
craftandto protect the table. Keep acoupleof
jars or bowls handy to hold the small parts af-
ter you open the bag.
Pleasetrialfitall theparts.Makesureyouhave
the correct parts and that they fit and are
alignedproperlybeforegluing!Thiswillassure
proper assembly. SU-26M ARF is hand made
from natural materials, every plane is unique
andminoradjustments may have to bemade.
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-
installedelevatorhalves.
SUGGESTION.
NOTE.

3
SU-26M - ITEM CODE: BH96.Instruction Manual
Caution: this model is not a toy!
If you are a beginner to this type of powered
model,pleaseaskanexperiencedmodelflyer
forhelpand support. If you attempt tooperate
themodelwithoutknowingwhatyou 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
Evenif you havealready built a large number
ofRCmodels please read right throughthese
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.
Creases: Blowwarmairoverthearea
and rub down with a soft
cloth.
Wing warp: Hold the panel twisted
gently in the opposite
direction to the warp, and
apply warm air to remove
the creases from the
covering.
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-sopleaseworkslowlyand
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.
+ 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.
+ Do not start the engine if people are near.
Donotstand in line with the sideof the propel-
ler.
+ Make engine adjustments from behind the
propeller only. Do not reach around the spin-
ningpropeller.
SAFETY PRECAUTION.
REPLACEMENT LARGE PARTS
A.
B2. C.
E.
B1.
F.
D2.
G.
D1.
C.Fuselage.
A.Cowling.
E.Rudder
B.Wing panel (B1,B2).
F.Aluminium wing
dihedral brace.
G.Decal sheet.
D.Horizontalstabilizer(D1,D2)

4
SU-26M - ITEM CODE: BH96.Instruction Manual
REPLACEMENT SMALL PARTS
2. Wheels.
1. Aluminium landing gear.
7. Plastic part for tail gear.
3. Plastic parts for rudder pushrod.
6. Tail gear set.
4. Spinner.
5. Plastic part for fuselage.
2.Using a modeling knife, remove the cov-
ering at possition show below.
1. 2.
3. 4. 5.
7.
6.
 1. Install the rubber grommets and brass
eyelets onto the aileron servo.
INSTALLING THE AILERON SERVOS 1.
Servo2. Servo 1.
Remove the
covering.

5
SU-26M - ITEM CODE: BH96.Instruction Manual
4. 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.
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.
Electric wire
Thread
Secure.
Repeat the procedure for the other wing
half.
Servotray.
Installaileron controlhornas sameas
picturebelow.
Repeat the procedure for the other wing
half.
3 x 35 mm.
INSTALLING THEAILERONCONTROL HORN 1
Secure.
2 x 12 mm.
Elevator
control horn 1.

6
SU-26M - ITEM CODE: BH96.Instruction Manual
Installing the aileron linkages as pictures
below.
Attach the clevis to the outer hole in the con-
trol horn.
INSTALLING THE AILERON
LINKAGES 1.
3x15mm 96 mm
Secure
C/Aglue
INSTALLING THE AILERON SERVOS 2.
2 x 12 mm.
INSTALLING THE AILERON CONTROL HORN 2.
3 x 35 mm.
Secure
aileron

7
SU-26M - ITEM CODE: BH96.Instruction Manual
PARTSREQUIRED
1. Assemble and mounting the wheel
pants as shown in the following pictures.
MAIN GEAR INSTALATION.
Installing the aileron linkages as pictures
below.
Secure
C/Aglue
Secure
Repeat the procedure for the other wing
half.
Elevator
control horn 2.
3x15mm 96 mm
INSTALLING THE AILERON
LINKAGES 2.
Bottom side.
Secure
Landing
gear.

8
SU-26M - ITEM CODE: BH96.Instruction Manual
Secure
Bottom side
Secure See pictures below:
INSTALLING THE ENGINE MOUNT.
Drillahole
6mmdiameter.
INSTALLING THE STOPPER ASSEMBLY
1. The stopper has been pre-assembled at
the factory.
2. Using amodelingknife,cut one length of
siliconfuel line (the lengthof silicon fuel line is
calculated by how the weighted clunk should
restabout8mmaway from the rear of thetank
andmovefreelyinsidethe tank). Connect one
end of the line to the weighted clunk and the
otherendto the nylon pick up tubeinthe stop-
per.
3. Carefully bendthe second nylon tubeup
ata45degreeangle(usinga cigarette lighter).
This tube will be the vent tube to the muffler.
FUEL TANK.

9
SU-26M - ITEM CODE: BH96.Instruction Manual
4. Carefully bend the thirdnylon tube down
ata45degreeangle(usinga cigarette lighter).
This tubewillbeventtubetothefuelingvalve.
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.
 5. Test fit the stopper assembly into the
tank. It may be necessary to remove some of
the flashing around the tank opening using
amodelingknife. Ifflashing 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-
pandsandsealsthetankopening.Donot over
tighten the assembly as this could cause the
tank to split.
 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,thefrontofthetankshouldjustabout
touch the back of the firewall.
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
througheasily.
9. To secure the fuel tank in place, apply a
bead of silicon sealer to the forward area of
thetank,whereitexitsthefuselagebehindthe
enginemountingbox andtotherearof thetank
at the forward bulkhead.
Secure.
Vent tube Fuel pick- up tube
Fuelfill tube
Tygon gas tubing not
included.

10
SU-26M - ITEM CODE: BH96.Instruction Manual
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 ENGINE-
THROTTLE.
Remove
covering.
4 x 40 mm.
Fueltank
Silicon tube

11
SU-26M - ITEM CODE: BH96.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.
Secure
Servo.
Tie wrap.
Right side. Right side.
INSTALLING THE THROTTLE - CABLE.
Throttle servo

12
SU-26M - ITEM CODE: BH96.Instruction Manual
COWLING.
1. Slide the fiberglass cowl over the en-
gineandlineupthebackedgeofthecowlwith
the marks you made on the fuselage.
Top side
Right side.
2. While keeping the back edge of the
cowl flush with the marks, align the front of
thecowlwiththe crankshaft oftheengine. 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
andsecureitin place using four wood 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
andfuelfiller valve.
Bottom side.
Left side.
Throttle - cable
Left side.
Throttle - cable

13
SU-26M - ITEM CODE: BH96.Instruction Manual
Installthespinnerbackplate,propellerand
spinner cone. The spinner cone is held in
placeusingtwo3mmx 8mm machine screws.
Trimandcut.
3 x 12mm
Front view.
Trim and cut.
Secure
INSTALLING THE SPINNER.
Machine screw.

14
SU-26M - ITEM CODE: BH96.Instruction Manual
1. Install the rubber grommets and brass
collets into the elevator servo. Test fit the
servo into the servo tray.
2. Mount the servo to the tray using the
mounting screws provided with your radio
system.
INSTALLING THE ELEVATOR
SERVOS. HORIZONTAL STABILIZER.
Horizontal stabilizer installation
See picture below.
Secure
165mm
9

15
SU-26M - ITEM CODE: BH96.Instruction Manual
3 x 15mm
Secure
Elevator control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
Secure
ELEVATORCONTROLHORNINSTALLATION.
3 x 25 mm.
Elevatorcontrol
horn.
 Elevatorpushrodinstallassame as the way
of aileron pushrod.
ELEVATOR PUSHROD INSTALLATION.
3x15mm 134 mm
Secure

16
SU-26M - ITEM CODE: BH96.Instruction Manual
Rudder
servo
MOUNTING THE TAIL WHEEL
BRACKET.
Silicon tube
3x12mm
3x15mm
Secure
Elevator
Pushrod Elevator
Pushrod
Secure
Rudder servo install as same as method of
elevator servo. See picture below:
VERTICAL INSTALLATION.
Rudder servo

17
SU-26M - ITEM CODE: BH96.Instruction Manual
3x15mm
Drillahole
3mmdiameter
Secure
Top side.
A+B Epoxy
Plus glue.

18
SU-26M - ITEM CODE: BH96.Instruction Manual
Rudder control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
ControlhornofRudder.
 1. Rudder push - pull system install as
same as picture below.
RUDDER PUSHROD INSTALLATION.
3 x 40 mm
Rudder
control horn
Bottom side.
RUDDER CONTROL HORN INSTALLA-
TION.
3 x 15mm
Elevator
servo
Secure.
3 x 15mm
Elevator pushrod
Rudder
cable Rudder
cable
Elevator pushrod
Secure

19
SU-26M - ITEM CODE: BH96.Instruction Manual
Rudderpush-pull
cable.


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.


2. Wrap the receiver and battery pack in
the protective foam to protect them from vi-
bration.Usea rubber band or maskingtapeto
hold the foam in place.
Do not permanently secure the re-
ceiver and battery until after balancing the
model.


3. Position the battery pack and receiver
behindthefueltank.Use twotiewrapstohold
the battery and receiver securely in place as
pictures below
INSTALLING THERECEIVERAND BATTERY.


1. Cutouttheswitchholeusingamodeling
knife. Use a 2mm drill bit and drill out the two
mounting holes through the fuselage side.


2. Secure the switch in place using the
two machine screws provided with the radio
system.
Battery of
engine.
UBEC.
Tie wrap.
Battery of
receiver Switch of
enginer. Switch of
receiver
Silicon
tube
INSTALLING THE SWITCH.

20
SU-26M - ITEM CODE: BH96.Instruction Manual
See picture wing attach to fuselage.
Installing the fuselage hatch as same as pic-
ture below.
UBEC.
Receiver
*** Test fit the aluminium tube dihedral brace
into each wing haft. The brace should slide in
easily. If not, use 220 grit sand around the
edges and ends of the brace until it fits prop-
erly.
Locatethealuminiumwingdihedralbrace.
Silicon tube
WINGATTACHMENT.
32
25
Rightwing.
1,070mm
880mm
25
32
Wing bolt.
Drill a hole
3mm diameter
Rightwing.
Secure
Top side
4 x 35mm
Leftwing.
Wing bolt.