Black Horce Model EDGE BH 69 Owner's manual

SPECIFICATION


 Wingspan : 1,580 mm 62.20 in.


 Length : 1,400 mm 55.12 in.


 Weight : 3.6 kg 7.26 Lbs.


 Radio : 06 channels.


 Servo : 06 servos.


 Engine : 61-75 2 stroke.
91 4 stroke.
Instruction Manual book
Made in Vietnam.

2
EDGE - Item code: BH69-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 EDGE. 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.
If you are inexperienced with basic R/C flight we strongly recommend you contact your R/C supplier
and join your local R/C Model Flying Club. R/C Model Flying Clubs offer a variety of training
procedures designed to help the new pilot on his way to successful R/C flight. They will 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.
Modelling knife.
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.
Landing gear.....
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 air-
craft and to protect the table. Keep a couple of
jars or bowls handy to hold the small parts af-
ter you open the bag.
Please trial fit all the parts. Make sure you have
the correct parts and that they fit and are
aligned properly before gluing! This will assure
proper assembly. EDGE 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 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: paint thinner, C/A glue accelerator, C/A glue
debonder and acetone. Do not let these chemi-
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-
installed rudder.
(1) Horizontal stabilizer with pre-
installed elevator halves.
SUGGESTION.
NOTE.

3
EDGE - Item code: BH69-A . Instruction Manual
Caution: this model is not a toy!
If you are a beginner to this type of powered model, please ask an experienced model flyer for help
and support. If you attempt to operate the model 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 of RC models please read right 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.
Creases: Blow warm air over the area 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 be built in a very short time. However, the work 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 tasks competently - so please work 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.
+ 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.
+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 engine if people are near. Do not stand in line with the side of the propeller.
+ Make engine adjustments from behind the propeller only. Do not reach around the spinning propel-
ler.
SAFETY PRECAUTION.

4
EDGE - Item code: BH69-A . Instruction Manual
REPLACEMENT SMALL PARTS
REPLACEMENT LARGE PARTS
B. Wing panel.
C. Fuselage.
A. Cowling.
D . Horizontal stabilizer.
F. Aluminium wing dihedral brace.
E. Rudder
G. Decal sheet.
K.Pilot.
3. Wheel pants.
1. Aluminium landing gear.
4. Plastic parts of landing gear
5. Spinner.
7. Tail gear set.
2. Wheels. 6. Fuel Tank.
8. Plastic - enginemount.
4x30mm
5x40mm

5
EDGE - Item code: BH69-A . Instruction Manual
Aileron
Top side.
Cut the covering
away from the slot.
2. Using a modeling knife, remove the cov-
ering servo tray.
Aileron Bottom side
Temporary pin to
keep hinge centered.
Aileron
Bottom side
Remove
covering
Assemble then apply drops of thin
C/A to center of hinge,on both sides.
1) Install the rubber grommets and brass
eyelets onto the aileron servos.
1.INSTALLING THE AILERON SERVOS.
I. AILERON.

6
EDGE - Item code: BH69-A . Instruction Manual
Repeat the procedure for the other wing
half.
INSTALLINGTHEAILERONCONTROLHORN.
Control horn of Aileron
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.
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.
Drill a hole
1.5mm.
5. Instal servo tray with aileron servo into
the wing as same as picture below.
Secure.
Control horn
Aileron
Install aileron control horn as same as pic-
ture below.
Drill a hole
1.5mm diameter
Secure.
Electric wire
Thread
2 x 10 mm.
A+B Epoxy
PLUS glue.

7
EDGE - Item code: BH69-A . Instruction Manual
3. Plug the aileron servo into the receiver
and center the servo. Install the servo arm onto
the servo. The servo arm should be perpen-
dicular to the servo and point toward the mid-
dle of the wing.
1. Working with the aileron linkage for now,
thread one clevis onto one of the threaded
wires.
2. Attach the clevis to the outer hole in the
control horn. Install a silicone tube on the
clevis.
4. 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.
5. 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.
Bend 90
degree
6. Insert the 90 degree 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.
Drill a hole
1.5mm diameter.
INSTALLING THE AILERON
LINKAGES.
M2 lock nut
M2
100mm
4x12mm

8
EDGE - Item code: BH69-A . Instruction Manual
See pictures below:
Drill a hole 5mm
diameter
Secure.
Repeat the procedure for the other wing
half.
Bottom side.
INSTALLING THE ENGINE MOUNT.
4 x 30mm
4 x 30mm
INSTALLING THE STOPPER ASSEMBLY
FUEL TANK.
Silicon tube not included

9
EDGE - Item code: BH69-A . Instruction Manual
1. The stopper has been pre-assembled at
the factory.
2. Using a modeling knife, cut one length of
silicon fuel line (the length of silicon fuel line is
calculated by how the weighted clunk should
rest about 8mm away from the rear of the tank
and move freely inside the tank). Connect one
end of the line to the weighted clunk and the
other end to the nylon pick up tube in the stop-
per.
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.
5. Test fit the stopper assembly into 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.
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 front of the tank should just about
touch the back of the firewall.
6. When satisfied with the alignment of the
stopper assembly tighten the 3mm x 20mm
machine screw until the rubber stopper ex-
pands and seals the tank opening. Do not over
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 t ank 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
the tank, where it exits the fuselage behind the
engine mounting box and to the rear of the tank
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.
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.
4. Carefully bend the third nylon tube down
at a 45 degree angle (using a cigarette lighter).
This tube will be vent tube to the fueling valve.
Tie wrap.
Fuel tank

10
EDGE - Item code: BH69-A . Instruction Manual
Drill a hole 4mm
diameter
Secure
Mark point
Left side
Right side
Pushrod wire.
Pushrod
wire.
Locate the long piece of wire used for the
throttle pushrod. 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
arm of the engine when the engine is fitted onto
the engine mount. Fit the engine to the engine
mount using the screws provided.
INSTALLING THE ENGINE.
4 x 30mm
125mm

11
EDGE - Item code: BH69-A . Instruction Manual
4. Install the muffler and muffler extension
onto the engine and make the cutout in the
cowl for muffler clearance. Connect the fuel
and pressure lines to the carburetor , muffler
and fuel filler valve.
Right side
3 x 12mm
Drill a hole
2mm diameter
Trim and cut.
Right side
Left side
2. While keeping the back edge of the
cowl flush with the marks, align the front of
the cowl with the crankshaft of the 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-
gine and line up the back edge of the cowl with
the marks you made on the fuselage.
COWLING.
3. Slide the cowl back over the engine
and secure it in place using four wood screws.
See picture below.
Right side.

12
EDGE - Item code: BH69-A . Instruction Manual
 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.
Install the spinner backplate, propeller and
spinner cone. The spinner cone is held in
place using two 3mm x 12mm wood screws.
Secure.
Throttle servo
INSTALLING THE SPINNER.
INSTALLING THE THROTTLE PUSHROD.
Secure.
Machine
screw.
Left side.
Throttle servo
Secure.
Right side.
3x15mm

13
EDGE - Item code: BH69-A . Instruction Manual
2. Mount the servo to the tray using the
mounting screws provided with your radio sys-
tem.
1. Install the rubber grommets and brass
collets into the elevator servo. Test fit the servo
into the servo tray.
ELEVATOR INSTALLATION.
SERVO INSTALLATION.
Cut.
Throttle pushrod
Drill a hole
1.5mm diameter
Secure.
Elevator servo.
 Horizontal stabilize installation .
See picture below.
HORIZONTALSTABILIZERINSTALLATION.
Temporary pin to
keep hinge centered.
Elevator
servo.
Assemble then apply drops of thin
C/A to center of hinge,on both sides.
Cut the covering
away from the slot.
Top side

14
EDGE - Item code: BH69-A . Instruction Manual
1. Draw a center line onto the horizontal
stabilizer. Then put the horizontal into the fuse
large.
2 Using a modeling knife, cut away the cov-
ering from the fuselage for the stabilizer and
remove it.
Drill a hole
1.5mm
3. Mark the shape of the vertical on the left
and right sides onto the horizontal stabilizer
using a felt-tip pen
Elevator control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
Elevator
control horn
Bottom side
A+B Epoxy
PLUS glue.
Top side
Control horn of elevator.
ELEVATOR CONTROL HORN
INSTALLATION.
center line
Check to mark sure the wing and stabi-
lizer are paralell. If they are not, lightly sand
the opening in the fuselage for the stabilizer
until the stabilizer is paralell to the wing.

15
EDGE - Item code: BH69-A . Instruction Manual
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.
4. Remove the st abilizer. Using the lines
you just drew as a guide, carefully remove the
covering from between them using a modeling
knife.
Mark line.
Mark line.
Bottom side
Remove covering
Top side
Bottom side
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
top and bottom of the stabilizer mounting area
and to the stabilizer mounting platform sides
in the fuselage. Slide the stabilizer in place and
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.
Epoxy glue.
Epoxy glue.
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
rubbing alcohol.

16
EDGE - Item code: BH69-A . Instruction Manual
Secure
Cut.
 Elevator pushrod install as same as the way
of aileron pushrod.
ELEVATOR PUSHROD INSTALLATION.
C/A glue.
Elevator pushrod
M2 lock nut M2
Elevator
pushrod
Elevator
pushrod.
Bottom side
Elevator
pushrod

17
EDGE - Item code: BH69-A . Instruction Manual
Secure
Secure
Control horn of Rudder.
A+B Epoxy
PLUS glue.
Rudder
control horn.
Drill a hole
1.5mm.
Rudder control horn install as same as the
way of aileron control horn. Please see pic-
tures below.
RUDDER CONTROL HORN INSTALLA-
TION.
Rudder servo install as same as method of
elevator servo. See picture below:
Rudder servo
RUDDER SERVO INSTALLATION.
Elevator pushrod.

18
EDGE - Item code: BH69-A . Instruction Manual
Assemble then apply drops of thin
C/A to center of hinge,on both sides.
1. Rudder pushrod install as same as the
way of aileron control horn.
RUDDER PUSHROD INSTALLATION.
Rudder
Pushrod
M2
M2 lock nut.
Temporary pin to
keep hinge centered.
Cut the covering
away from the slot.
Top side
Bend

19
EDGE - Item code: BH69-A . Instruction Manual


1. Set the tail wheel assembly in place
on the plywood plate. The pivot point of the
tail wheel wire should be even with the rud-
der hinge line and the tail wheel bracket should
be centered on the plywood plate.


2. Using a pen, mark the locations of the
two mounting screws. Remove the tail wheel
bracket and drill 1mm pilot holes at the loca-
tions marked.
MOUNTING THE TAIL WHEEL
BRACKET.


3. Secure the tail wheel bracket in place
using three 3mm x 12mm wood screws. Be
careful not to overtighten the screws.
Secure
Mark point.
Drill a hole
2 mm
Rudder
pushrod.
Snap keeper
3mm x 12mm
Rudder
pushrod Bottom side

20
EDGE - Item code: BH69-A . Instruction Manual
MAIN GEAR INSTALATION.
PARTSREQUIRED
1) The blind nuts are already mounted in-
side the fuselage.
2) The holes in the landing gear should be
to accept the mounting bolts.
3. Using the hardware provided, mount
the main landing gear to the fuselage.
Landing gear.
Secure.
Cut.
Cut.
Cut
4x15mm
5x40mm