West Michigan Park Flyers OV10-Bronco Instructions for use

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OV10-Bronco Construction Guide
Specifications:
-Wing span –36”
-Length –33”
-Wing area 300 sq. in
-Weight - (without battery) –11 oz.
-Center of gravity is 2-1/4” from leading edge of wing.
-Motors: 2204 –2300 KV
-Props: 6x3CW –6X3CCW
-Battery: 1000 mah to 1300 mah 11.1 V
-Speed Control: 12 Amp.
-9 gram servos, 2 for ailerons, 1 for elevator.
Additional Items needed to complete kit:
-Glue –Foam-Tac (FT), Hot melt, and CA (super glue)
-Velcro
-Servos
-Motors
-electric props
-ESCs
-Battery
-Servo wire extensions
-Bullet connectors for motor wires

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Kit contents include.
-9mm laser cut EPP foam.
-4mm carbon tube wing spars.
-4mm carbon tube elevator spar.
-4mm carbon tube tail spars.
-4mm carbon fuselage spars.
-1.5mm carbon trussing.
-Plywood pieces.
-Wire Z bends.
-landing gear.
-EZ connects.
-Shrink wrap.
-Zip ties.
-18 gage wire
To start the build, use Foam-Tac (referred
to as FT) to glue the 4mm carbon spars
into the grooves as shown.
The plywood accessory pieces can be
spray painted to improve how the plane
looks.

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Cut the fiberglass drywall tape provided in
the kit into four ¾” wide strips.
Then glue these with FT to the underside
of the wing as shown.
Assemble the plywood motor mount
pieces with CA glue.
Then glue the motor mounts to the
underside of the wing using a generous
amount of Foam-Tac as shown.
Allow this to dry for at least 30min before
further assembly.
While the motor mounts are drying, you
can solder bullet connectors to motors
and ESCs if needed.

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ESCs need to be soldered together as
shown using pieces of 18 gage wire. The
length of each piece of wire depends on
how much wire comes with your esc. Once
the wires are all connected they should
measure 13” long from one esc to the
other.
Do a test of the motors and ESC’s before
gluing them into the plane to make sure
they are working properly.
If both ESCs have a BEC, then the center
red power wire must be cut or removed
from ONE of the receiver plugs. This is
done so that the receiver gets power from
only one ESC.
The nose landing gear is held in place by
gluing with FT the two plywood pieces
(one on each side) to the foam piece with
a matching hole.

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The landing gear is made of 2mm wire, use
a 2.1mm drill bit to enlarge the hole in all
three wheels and the plywood wheel
collars.
Then attach the wheels to the landing gear
using the plywood wheel collars and CA
glue. Do not get glue on the wheel, it
needs to spin freely.
Use the two metal wheel collars to hold
the nose landing gear to the plywood
pieces that you glued to the nose bottom.
The wire landing gear needs to turn freely
in the plywood.
The tail booms can now be glued with FT
to the wing as shown.
Make sure that the carbon spars are facing
in towards the center of the wing!

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Flip the wing right side up and use FT to
glue the tail boom top pieces in place as
shown.
Flip the wing back upside down and use FT
to glue the two fuselage top pieces in
place as shown.
WARNING!
Do not attach the center fuselage sides to
the wing until ALL electronic wires are
installed!
Glue the horizontal stabilizer in place
along with the 7” long 1.5mm carbon
trussing with FT.
Make sure that the tail sides are square to
the horizontal stabilizer.

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All three servos need Dobro EZ connects
attached to them by enlarging the end
hole in the arm with a 1.5mm drill bit.
Make sure the EZ connect spins freely in
the servo arm.
Enlarge the holes in the three plywood
horns using a .9mm drill bit.
I recommend using the center hole on the
plywood elevator horn.
Glue the plywood aileron horns into the
slots provided as shown in the picture.
Glue the servo into the hole provided with
the arm centered straight down as shown
in the picture.
Attach the wire Z bend to the plywood
horn and EZ connect as shown in picture.

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Use a wire cutter to remove the ears from
both sides of the elevator servo.
Glue the plywood elevator horn into the
slot provided as shown in the picture.
Glue the elevator servo in the hole
provided with the arm centered straight
up.
Attach the wire Z bend to the plywood
horn and EZ connect as shown in picture.
I recommend using the center hole on the
plywood elevator horn.
The elevator servo wire can be glued to
the inside of the tail boom with CA or hot
melt glue.
Cut a slit (red arrow in picture) part way
into the underside of the wing and insert
elevator wire, this is done to hide the
servo wire and decrease drag.

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If metal X mounts are not included with
your motors, then use the square plywood
mounts supplied with the kit.
Glue the two plywood pieces together
with CA glue and attach to motor with
countersunk philips screws as shown.
The square plywood mount with the large
holes needs to face away from the motor
so that the screws fit flush.
The motors can now be attached to the
wing with screws.
Although we are using quadcopter motors
it is not necessary to have one left hand
threading and one right hand threading,
they can be both the same and either will
work.
The ESC and servo wires can now be
installed onto the wing and into the slot
provided.
Use a little hot melt glue to hold the ESC
and wires in place.
Servo wire extensions may be needed if
wires are too short to reach the receiver.

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To make things easier, attach the servo
and ESC control wires to the receiver
before attaching the fuselage sides.
Standing behind the plane looking at the
bottom of the wing, plug the left aileron
and left ESC into the aileron and throttle
receiver ports. Plug the right ESC into the
rudder port, and the right aileron into the
AUX 1 port.
To install the rear landing gear, first glue
the plywood base plate to the inside of
each motor nacelle with FT, align the plate
with the spar and the holes in the nacelle.
(note that the large hole in the base plate
is toward the rear of the plane).
Attach the wheels to the landing gear
using the plywood wheel collars and CA
glue. Do not get glue on the wheel, it
should spin freely.