Black Horse Model SU 26M-EP Owner's manual

SPECIFICATION
Instruction Manual book
MadeinVietnam.


Wingspan : 1,140 mm 44.88 in.

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Length : 1,063 mm 41.85 in.
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Weight : 1.4 kg 3.08 Lbs.

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Radio : 04 channels.


Servo : 05miniservos(23.6x 11.6x 24mm)
0.92 x 0.45 x 0.94 in.


ElectricMotor :EMAX BL 2815/09.

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Battery : 3Cells-Li-Poly-11.1V 2.200mAh.


Speedcontrol: 60A.
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
Propeller:11x 6

SU 26M-EP - Item code: BH97 . Instruction Manual
2
This instruction manual is designed to help you build a great flying aeroplane. Please read this
manual thoroughly before starting assembly of your SU 26M-EP. 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
proceduresdesignedtohelp thenew pilotonhiswayto successfulR/C flight.Theywillalsobe 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.....
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. Keepacouple of
jars or bowls handy to hold the small parts af-
ter you open the bag.
Pleasetrialfitall theparts.Makesureyou have
the correct parts and that they fit and are
alignedproperlybefore gluing!Thiswill assure
proper assembly.SU 26M-EP ARF is hand
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 tolerant
of many harsh chemicals including the follow-
ing:paintthinner,C/Aglueaccelerator,C/Aglue
debonderandacetone.Do notlet thesechemi-
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.

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SU 26M-EP - Item code: BH97 . Instruction Manual
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.
2. Wheels
1. Aluminium landing gear. 3.Spinner.
4. Plastic parts for bottom fuselage.
1.
2.
3. 4.
+ This is not a toy
+ Be sure that no other flyers are using your radio frequency.
+ The glow plug clip must be securely 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 motor if people are near. Do not stand in line with the side of the propeller.
G.
B.
C.
B.
D.
E.
F.
A.

SU 26M-EP - Item code: BH97 . Instruction Manual
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 2)Using amodeling knife,remove thecov-
ering at possition show below.
 1) Install the rubber grommets and brass
eyelets onto the aileron servos.
I. AILERON.
 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.
C/Aglue
C/Aglue
Aileron Bottom of wing.
Electric wire
thread
Aileron Bottom side
C/Aglue
C/Aglue
1.INSTALLING THE AILERON SERVOS.

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SU 26M-EP - Item code: BH97 . Instruction Manual
1) Using a ruler & pen to draw a straight
line as below picture.
 5. 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.
Repeat the procedure for the other wing
half.
INSTALLING THE AILERON
CONTROL HORN.
INSTALLING THE AILERON
LINKAGES.
Servo
Secure.
Secure.
C/Aglue
Cut.
Repeat the procedure for the other wing
half.
Control horn.
Micro control
connector. Control horn.
Pushrod wire.

SU 26M-EP - Item code: BH97 . Instruction Manual
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See pictures below:
INSTALLING ELECTRIC MOTOR.
Drill a hole
5mmdiameter
Cut.
150 mm
Secure
Right side.
PARTSREQUIRED
MAIN GEAR INSTALATION.
Secure
Landing
gear.
24 mm
3 x 40 mm

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SU 26M-EP - Item code: BH97 . Instruction Manual
Secure
2. While keeping the back edge of the
cowl flush with the marks, align the front of
thecowlwith thecrankshaftofthe 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.
 1. Slide the fiberglass cowl over the en-
gineand lineupthe backedgeof thecowlwith
the marks you made on the fuselage.
COWLING.
Bottom side
3. Slide the cowl back over the engine
andsecure itin placeusingfour woodscrews.
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 fillervalve.
Trim and
cut.
Machine screw.
Left side.
3 x 10 mm
Top side
Front view.

SU 26M-EP - Item code: BH97 . Instruction Manual
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Installthe spinnerbackplate,propeller and
spinner cone. The spinner cone is held in
place using two 3mm x 12mm wood screws.
INSTALLING THE SPINNER.
Secure.
Secure.
 1. Install the rubber grommets and brass
colletsinto theelevatorservo.Testfitthe servo
into the servo tray.
 2. Mount the servo to the tray using the
mountingscrews providedwithyour radiosys-
tem.
SERVO ELEVATOR AND RUDDER
See pictures below:
Bottom side
HORIZONTAL STABILIZER.

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SU 26M-EP - Item code: BH97 . Instruction Manual
 1. Draw a center line onto the horizontal
stabilizer. Then slide the horizontal into the
fuselage.
 2 Using a modeling knife, cut away the
covering from the fuselage for the stabilizer
and remove it.
C/Aglue
C/Aglue
 3. Markthe shapeof thevertical onthe left
and right sides onto the horizontal stabilizer
using a felt-tip pen
Markline
Center line.
 4. Remove the stabilizer. Using the lines
youjust drewas aguide, carefullyremove the
coveringfrom betweenthemusing amodeling
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.
Remove
covering.

SU 26M-EP - Item code: BH97 . Instruction Manual
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6. Afterthe 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.
Epoxy
glue.
Epoxyglue.
C/A glue.
C/Aglue.
C/Aglue.
C/Aglue.
C/Aglue
 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 bottomof thestabilizer mountingarea
and to the stabilizer mounting platform sides
inthefuselage. Slidethestabilizerin placeand
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.
Check to mark sure the wing and stabi-
lizer are paralell. If they are not, lightly sand
theopening inthe fuselagefor thestabilizer
until the stabilizer is paralell to the wing.

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SU 26M-EP - Item code: BH97 . Instruction Manual
C/Aglue
Top side.
Elevator control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
ELEVATOR CONTROL HORN AND
ELEVATOR PUSHROD INSTALLATION.
elevator
control horn.
C/Aglue.
Bottom side.
elevator
control horn.
elevator pushrod wire
C/Aglue.
Secure.
Cut.

SU 26M-EP - Item code: BH97 . Instruction Manual
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Rudder servo install as same as method of
elevator servo. See picture below:
VERTICAL INSTALLATION.
Elevator
pushrod Elevator
pushrod
Bottom side
C/Aglue
C/Aglue
C/Aglue
C/Aglue

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SU 26M-EP - Item code: BH97 . Instruction Manual
 1) Using a modeling knife, remove the
covering from the top of the fuselage and the
covering from over the precut hinge slot cut
intothe lowerrear portionof thefuselage This
slot accepts the lower vertical.
 3. Mark the shape of the vertical on the
leftand rightside of therudderon tothe hori-
zontal stabilizer using a felt-tip pen.
 2. Put the rudder into the fuselage as
same as picture below.
Hingeslot
Markline
 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.
 Also carefully remove the covering from
the horizontal fin as below the lines which
you drew as same picture below.
Remove
covering
Epoxyglue.
90º
Vertical
Stabilizer.
Horizontal
Stabilizer.
 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.

SU 26M-EP - Item code: BH97 . Instruction Manual
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Rudder pushrod install as same as the way
of aileron pushrod.
Rudder control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
RUDDER CONTROL HORN AND
RUDDER PUSHROD INSTALLATION.
 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
stabilizerinplace withT-pins ormasking tape.
Allow the epoxy to fully cure before proceed-
ing.
Epoxyglue.
C/Aglue.
C/Aglue.
C/Aglue.
Secure.
C/Aglue.
Rudder pushrod wire
Rudder pushrod wire
Top side

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SU 26M-EP - Item code: BH97 . Instruction Manual
Cut. Rudderpushrod.
Plastic part bottom side
fuselage
Elevator
pushrod
Rudder
pushrod
Elevator
pushrod
Bottom side.
C/Aglue
Cut.

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. Usinga2mmdrillbit, drilla holethrough
the side of the fuselage, near the receiver,
for the antenna to exit.

1. Plug the servo leads and the switch
lead into the receiver. You may want to
plug an aileron extension into the receiver
to makeplugging 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. Use a rubber band or masking tape
to hold the foam in place.
INSTALLINGTHE RECEIVERAND BATTERY.

SU 26M-EP - Item code: BH97 . Instruction Manual
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Tie wrap.
Locatethealuminiumwingdihedralbrace.
*** 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.
WINGATTACHMENT.
See picture wing attach to fuselage.
Receiver.
Wing bolt.
Right side
Secure
Battery.
3 x 15mm
Battery.

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SU 26M-EP - Item code: BH97 . Instruction Manual
Installing thefuselage hatchas sameas pic-
ture below.
Wing bolt.
Left side.
Secure.
Top side.
 1) It is critical that your airplane be bal-
anced correctly. Improper balance will cause
your plane to lose control and crash.
THE CENTER OF GRAVITY IS LOCATED
63MM BACK FROM THE LEADING EDGE
OF THE WING.

2) Mountthe wingtothe fuselage.Using a
coupleof piecesof maskingtape, placethem
on the top side of the wing 63mm back from
the leading edge, at the fuselage sides.

3. Turn the airplane upside down. Place
your fingers on the masking tape and care-
fully lift the plane .
BALANCING.
Accuratelymark thebalance pointon thetop
ofthe wingonboth sidesofthe fuselage.The
balancepoint islocated 63mmback fromthe
leading edge. This is the balance point at
whichyourmodelshould balancefor yourfirst
flights. Later, you may wish to experiment by
shifting the balance up to 10mm forward or
back to change the flying characteristics.
Movingthe balanceforwardmay improvethe
smoothness and arrow- like tracking, but it
may then require more speed for take off
and make it more difficult to slow down for
landing. Moving the balance aft makes the
model more agile with a lighter and snappier
”feel”. In any case, please start at the loca-
tion we recommend .
With the wing attached to the fuselage, all
partsof themodel installed(ready tofly), and
empty fuel tanks, hold the model at the
markedbalance pointwith thestabilizerlevel.
Lift the model. If the tail drops when you
lift, the model is “tail heavy” and you must
add weigh* to the nose. If the nose drops, it
is “nose heavy” and you must add weight* to
the tail to balance.

SU 26M-EP - Item code: BH97 . Instruction Manual
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PRE-FLIGHT CHECK.
 1) Completely charge your transmitter and
receiver batteries before your first day of fly-
ing.
 2) Check every bolt and every glue joint in
your plane to ensure that everything is tight
and well bonded.

3) Double check the balance of the
airplane.

6) Properly balance the propeller.
We wish you many safe and enjoyable
flights with your EDGE 540 V3-EP

4) Check the control surface.

5) Check the receiver antenna . It should
be fully extended and not coiled up inside the
fuselage.
CONTROL THROWS.
 1) We highly recommend setting up a
plane using the control throws listed.

2) The control throws should be meas-
ured at the widest point of each control sur-
face.
 3) Check to be sure the control surfaces
move in the correct directions.
Ailerons : 10mm up 10mm down
Elevator : 15mm up 15 mm down
Rudder : 30mm right 30mm left
Aileron Control
30mm
30mm
*Ifpossible,first attempttobalance themodel
by changing the position of the receiver bat-
tery and receiver. If you are unable to obtain
goodbalance by doingso, then itwill benec-
essary to add weight to the nose or tail to
achieve the proper balance point.