Black Horse Model OV-1 MOHAWK Owner's manual

SPECIFICATION


 Wingspan : 1,450 mm 57.09 in.


 Length : 1,200 mm 47.24 in.


 Weight : 2.3 kg 5.06 Lbs.


 Radio : 04 channels.


 Servo : 06 servos.
Parts Listing Required (not included).


 Electric Motor (02 motors) : AXI 2814/12.


 Speed Control (02pcs) : 40A.


 Battery: 3 CELLS-LI-POLY
11.1 v-5.000 mA.h-20C.


 Propeller (02pcs) :10 x 6
Instruction Manual book
Made in Vietnam.
ITEM CODE: BH49.

OV - 1 MOHAWK. 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 OV- 1 MOHAWK. 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
aircraft and to protect the table. Keep a couple
of jars or bowls handy to hold the small parts
after 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. OV-1MOHAWK 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
following: paint thinner, C/A glue accelerator,
C/A glue debonder and acetone. Do not let
these chemicals 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.

OV-1 MOHAWK. INSTRUCTION MANUAL.
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+ 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 st art the motor if people are near .
Do not stand in line with the side of the
propeller.
SAFETY PRECAUTION.
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.
REPLACEMENT LARGE PARTS
A. Right wing panel.
C. Fuselage.
E. Horizontal stabilizer.
F. Vertical stabilizer.
REPLACEMENT SMALL PARTS
1. Right nacelle cover.
3. Fiberglass cover first fuselage.
9. Aluminium wing dihedral brace.
7. Nose & Main wheel (60mm).
6. Nose and landing Gear w/o Wheels.
10. Decal sheet.
A
B
C
2. Left nacelle cover.
4. Fiberglass cover top fuselage.
5. Fiberglass cover bottom end fuselage.
1
2
3
6
7
10
4
5
E
D
F
B. Left wing panel.
D. Fuselage top hatch.
9
8
8. Spinner.

OV - 1 MOHAWK. INSTRUCTION MANUAL.
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1) Install the rubber grommets and brass
eyelets onto the aileron servo.
2) Install the metal connector onto servo
arm.
3) Turn the wing panel right side up. Using
a modeling knife, remove the covering at
possition show below.
C/A glue.
C/A glue.
C/A glue.
Repeat the procedure for the other
wing half.
Bottom of left.
Bottom side of left wing
INSTALLING THE AILERON - SERVO CON-
TROLHORN.
C/A glue.
INSTALLING THE AILERON - FLAPSERVO
CONTROLHORN.

OV-1 MOHAWK. INSTRUCTION MANUAL.
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4) Install the aileron servo as same as
picture.
C/A glue.
5) Attach the micro control connector to
the servo arms. Be sure to use the lock tie but
it could free rotation.
C/A glue.
Micro control connector.
Flap
Remove the covering.
Aileron.

OV - 1 MOHAWK. INSTRUCTION MANUAL.
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Insert aileron control horn to the aileron.
6) Using a ruler & pen to draw a straight
line as below picture.
Cut.
Remover covering.
Secure.
C/A glue.
aileron control horn.
aileron control horn. Flap control horn.
Pushrod wire
Bottom side.
Aileron
Flap
Slot aileron

OV-1 MOHAWK. INSTRUCTION MANUAL.
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Remove covering.
C/A glue.
Finishing.
Aleron control horn
Bottom side
INSTALLINGFLAP SERVO-CONTROLHORN.
Flap
Flap control horn.
Pushrod wire
Remove covering.
Flap

OV - 1 MOHAWK. INSTRUCTION MANUAL.
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INSTALLING ELECTRIC MOTOR.
See pictures below:
Repeat the procedure for the other
wing half.
Top side of the left wing halft.
Flap
Aileron
Flap control horn
3x 10mm.
Motor mount wood:
Bottom side of the left t wing halft.
Aileron control horn

OV-1 MOHAWK. INSTRUCTION MANUAL.
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Secure.

OV - 1 MOHAWK. INSTRUCTION MANUAL.
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OV-1 MOHAWK. INSTRUCTION MANUAL.
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 Wing first lot : 145mm from the wing
root.
Install the engine nacelle as same as
picture below.
 Wing second slot : far from
the first slot 75mm to the wing tip side.
Top side of left haft wing
Installing Nacelle Top side of left
haft wing
150mm
Mark point
Remove covering the first slot
Remove covering the second slot
ENGINE NACELLE INTALLATION. Tracing a line with your finger and using a
modeling knife remove a (3mm) wide strip to
the in side of the line drawn in the precicous
step as picture below.
145mm
75mm
Remark
Remark
145mm
Straight line 90-degreees

OV - 1 MOHAWK. INSTRUCTION MANUAL.
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C/A glue.
Finishing
Push
Push down.
Wng slot
Mark the line
Wng slot
Mark the line
Installing Nacelle bottom side of
left haft wing

OV-1 MOHAWK. INSTRUCTION MANUAL.
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C/A glue
Remove covering the first slot
Remove covering the second slot
Mark the line
Wng slot
Mark the line
Wng slot
90- degrees
Straight line
140mm
Mark point
145mm
75mm
Straight line

OV - 1 MOHAWK. INSTRUCTION MANUAL.
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Repeat the procedure for the other
right haft wing.
C/A glue
Push down
Push
Bottom side
Secure

OV-1 MOHAWK. INSTRUCTION MANUAL.
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INSTALLING THE SPINNER.
MAIN GEAR INSTALATION.
Bottom side of the left wing
halft.
Repeat the procedure for the other
spinner.
Top side of the left wing halft.
2x10mm
3x12mm

OV - 1 MOHAWK. INSTRUCTION MANUAL.
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Remove covering
Wing slot

OV-1 MOHAWK. INSTRUCTION MANUAL.
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Attach the pushrod wire to the steering
arm.
INSTALLINGTHE NOSEGEAR.
To p
Bottom

OV - 1 MOHAWK. INSTRUCTION MANUAL.
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Cut
SERVO INSTALLATION.
1) Install the rubber grommets and brass
eyelets onto the elevator servo and nose gear
servo.
2) Install the metal connector onto servo
arm.
Secure.
Install the nose gear and secure it.
Secure
Nose gear servo
To p

OV-1 MOHAWK. INSTRUCTION MANUAL.
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2) Draw a center line onto the horizontal
stabilizer. Then put the horizontal into the fu-
selage.
1) Using a modeling knife, cut away the
covering from the fuselage for the stabilizer
and remove it.
HORIZONTAL STABILIZER INSTALLA-
TION.
3) Mark the shape of the vertical on the left
and right sides onto the horizontal stabilizer
using a left-tip pen.
PEN .
Bottom side.
Remove covering.
Bottom side.
Center.
Top side.
4) Remove the stabilizer. Using the lines
you just drew as a guide, carefully remove the
covering from between them using a modeling
knife.
When cutting through the covering to re-
move it, cut with only enough pressure to only
cut through the covering it’s self. Cutting into
the balsa structure may weaken it. This could
lead to possible failure during flight.
Top elevator.

OV - 1 MOHAWK. INSTRUCTION MANUAL.
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ELEVATOR CONTROL HORN
INSTALLATION.
 Installing elevator control horn as same as
picture below.
C/A glue.
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.
C/A glue.
Epoxy glue.
C/A glue.
C/A glue.
Remove
covering.
Elevator
slot