TOOLS AND SUPPLIES NEEDED.
• Medium C/A glue.
• 30 minute epoxy.
• 6 minute epoxy.
• Hand or electric drill.
• Assorted drill bits.
• Modeling knife.
• Straight edge ruler.
• 2 bender plier.
• Wire cutters.
• Masking tape.
• Thread lock.
• Paper towels.
• Rubbing alcohol
SUGGESTION
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.
NOTE:
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. The
Ka-8b ELECTRIC 6000 ARF 1/2.5 SCALE 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 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.
SAFETY PRECAUTION:
• 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 propeller.
1
PREPARATIONS
Remove the tape and separate the ailerons from
the wing and the elevators from the stab. Use a
covering iron with a covering sock on high heat to
tighten the covering if necessary. Apply pressure
over sheeted areas to thoroughly bond the
covering to the wood.
1
INSTALLING THE AILERONS
1. Test fit the ailerons to the wing with the hinges.
If the hinges don’t remain centered, stick a pin
through the middle of the hinge to hold it in
position.
TEMPORARY PIN
TO KEEP HINGE
CENTERED
2
CA glue
2. Apply six drops of thin CA to the top and bottom
of each hinge. Do not use CA accelerator. After
the CA has fully hardened, test the hinges by
pulling on the aileron.
Instruction Manual
K8B
8
INSTALLING THE CONTROL HORNS
1. One aileron control horn in positioned on each
aileron. Remove the covering from the aileron
and secure it.
2
3. Place the servo into the servo tray. Center the
servo within the tray and drill 1,6mm pilot holes
through the block of wood for each of the four
mounting screws provided with the servo.
Remove the covering
3
INSTALLING THE AILERON SERVOS
1. Install the rubber grommets and brass eyelets
onto the aileron servo.
2. Using a modeling knife, remove the covering
from over the pre-cut servo arm exit hole on the
aileron servo tray / hatch. This hole will allow
the servo arm to pass through when installing
the aileron pushrods.
4
6. Repeat step # 2 - # 5 to install the second
aileron servo in the opposite wing half.
5. Place the aileron servo tray / hatch into the
servo box on the bottom of the wing and drill
1,6mm pilot holes through the tray and the
servo box for each of the four mounting screws.
Secure the servo tray in place using the
mounting screws provided ( 2mm x 12mm ).
4. 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, remove the
masking tape and the servo lead from the
thread.
Servo lead
5
6
To the cowl
To the cowl
7
Plastic washer
Plastic control
3mm Screw
Instruction Manual
K8B
12
13
WING TIP
3
INSTALLING THE electric air brakes
(not included with the kit)
2. Repeat step # 1 - # 2 to install the control horn
on the opposite aileron.
3. Repeat step 1 - step 2 for the second aileron
linkage.
1. Remove the covering from the top of the wing.
Link ball
M3 nut
11
INSTALLING THE AILERON LINKAGES
The aileron linkages are assembled as shown
below.
M3 nut
10
1. Plug the aileron servo into the receiver and
center the servo. Install the servo arm onto the
servo. The servo arm should be perpendicular
to the servo and point toward the middle of the
wing.
2. Center the aileron and hold it in place using a
couple of pieces of masking tape. Adjust the
linkage until the aileron and the servo arm are
both centered and then tighten the nut against
the clevis. Install the plastic linkball to the servo
arm. Remember use thread locking compound
to secure.
Screw
Flat washer
Flat washer
M3 nut
Aluminum link ball
Servo arm
Plastic link ball
90mm
22mm
22mm
9
Instruction Manual
K8B
110mm
22mm
22mm
22
25
Remove the covering
21
Control horn
elevator
26
1. Remove the covering.
2. Secure the horizontal onto the fuselage.
5
INSTALLING THE HORIZONTAL STABILIZER
27
INSTALLING THE ELEVATOR LINKAGES
The elevator linkages are assembled as shown below
24
- Repeat these step as installing the aileron
linkage
s.
23
28
Glue the hinges
by C.A glue
INSTALLING THE elevator
- Repeat step #1 - #2 from installing the aileron
to install the elevator.
Instruction Manual
K8B
6
INSTALLING THE RUDDER
1. Repeat step #1 - #2 from installing the aileron
to install the rudder.
29
31
32
33
34
35
30
2. Remove the covering from the fuselage.
3. Insert the vertical stabilizer into the fuselage.
5. Secure the vertical stabilizer into the fuselage.
4. Remove the covering from the fuselage.
Remove the covering
36
INSTALLING THE rudder SERVOS
Repeat these step from installing the aileron
linkages to install the rudder linkages.
Instruction Manual
K8B
10
150mm
BALANCING
1. It is critical that your airplane be balanced
correctly. Improper balance will cause your
plane to lose control and crash.
THE CENTER OF GRAVITY IS LOCATED
150mm BACK FROM THE LEADING EDGE
OF THE WING, AT THE FUSELAGE. This
location is recommended for initial test flying
and trimming. BALANCE A PLANE UPSIDE
DOWN WITH THE FUEL TANK EMPTY.
2. Mount the wing to the fuselage. Using a couple
of pieces of masking tape, place them on the
top side of the wing 150mm back from the
leading edge, at the fuselage sides.
3. Turn the airplane upside down. Place your
fingers on the masking tape and carefully lift
the plane.
4. If the nose of the plane falls, the plane is nose
heavy. To correct this first move the battery
pack further back in the fuselage. If this is not
possible or does not correct it, stick small
amounts of lead weight on the fuselage under
the horizontal stabilizer. If the tail of the plane
falls, the plane is tail heavy. To correct this,
move the battery and receiver forward or if this
is not possible, stick weight into the firewall.
When balanced correctly, the airplane should
sit level or slightly nose down when you lift it up
with your fingers.
!
LATERAL BALANCE
After you have balanced a plane on the C.G.
You should laterally balance it. Doing this will
help the airplane track straighter.
5. Turn the airplane upside down. Attach one loop
of heavy string to the engine crankshaft and
one to the tail wheel wire. With the wings level,
carefully lift the airplane by the string. This may
require two people to make it easier.
6. If one side of the wing fall, that side is heavier
than the opposite. Add small amounts of lead
weight to the bottom side of the lighter wing
half's wing tip. Follow this procedure until the
wing stays level when you lift the airplane.
Instruction Manual
K8B
Aileron Control
15mm
15mm
Rudder Control
45mm
45mm
Elevator Control
15mm
15mm
FLIGHT PREPARATION
PRE FLIGHT CHECK
1. Completely charge your transmitter and receiver
batteries before your first day of flying.
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.
4. Check the control surface.
5. Check the receiver antenna. It should be fully
extended and not coiled up inside the fuselage.
6. Properly balance the propeller.
CONTROL THROWS
1. We highly recommend setting up a plane using
the control throws listed.
2. The control throws should be measured at the
widest point of each control surface.
3. Check to be sure the control surfaces move in
the correct directions.
Aileron : 15mm up
15mm down
Elevator : 15mm up 15mm down
Rudder : 45mm right 45mm left
I/C FLIGHT GUIDELINES
When ready to fly, first extend the
transmitter aerial.
Operate the control sticks on the
transmitter and check that the control
surfaces move freely and in the
CORRECT directions.
ALWAYS land the model INTO the
wind, this ensures that the model lands
at the slowest possible speed.
Switch on the transmitter.
Switch off the transmitter.
Check that the transmitter batteries
have adequate power.
Switch off the receiver.
Switch on the receiver.
ALWAYS take off into the wind.
Check that the wings are correctly
fitted to the fuselage.
If the model does not respond correctly
to the controls, land it as soon as
possible and correct the fault.
Empty the fuel tank after flying, fuel left
in the tank can cause corrosion and
lead to engine problems.
Made in Vietnam
41
C.A Glue
40
7
INSTALLING THE main landing gear
1. The full set wheel.
39
2. Secure the collars.
3. Glue the wooden plate to the fuselage.
38
185mm
22mm
22mm
37
44
4. Attach the fuselage to the fuselage.
42
Dihedral
brace
Dihedral
brace
43
Screw
Instruction Manual
K8B
INSTALLING THE WING
1. Install the wing to the fuselage with 2 aluminum
tube and 2 carbon tube.
47
Screw
Open and close the canopy
8
INSTALLING THE RECEIVER AND BATTERY
1. Plug the servo leads and the switch lead into
the receiver. You may want to plug an aileron
extension into 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 vibration.
Use a rubber band or masking tape to hold the
foam in place.
45
46
Screw
Instruction Manual
K8B
48
C.A Glue
- Glue the plastic cover to the fuselage.
- Glue the plastic cover to the fuselage.
- In this case, your glider can be towed by
another plane.
49
C.A Glue
installing the towing line
50
51
C.A Glue
2. Secure the wing with 6 nylon screw.
3. Secure the wing.
INSTALLING THE MOTOR
53
54
Screw
55
Screw
57
58
ESC
Receiver
Battery
Zip tie
56
Remove the covering
9
52
Instruction Manual
K8B
- In this case, your plane can fly by themself - Do not
need towed by another plane.
- Engine mount.
- Install the motor.
SET UP ELECTRIC SYSTEM RECOMMANDED
- Motor : Hacker A60-18L KV149
- Esc : 120A HV
- Battery : Poly 12 cells - 5000 mAh
- Propeller : 20 x 12 ; 22 x 12.
- Secure the engine mount.
- Remove the covering for axles and for the air
cooling the esc and motor.
- Install the propeller.
Remove the covering
This part not included
Instruction Manual
- Gravity CG: 150 mm (5.9 in) Back from the
leading edge of the wing, at the fuselage
- Control throw Ailerons: Low: 15mm up/down,
10% expo; High: 20mm up/down, 10% expo
- Control throw Elevators: Low: 15mm up/down,
12% expo; High: 20mm up/down, 12% expo
- Control throw Rudder: Low: 45mm right/left,
15% expo; High: 70mm right/left, 15% expo
- Experience level: Intermediate
- Plane type: Giant Scale Sailplane
RECOMMENDED MOTOR AND BATTERY SET UP
- Motor: hacker brushless a60-18l kv149 (not included)
- Propeller: hacker 20x13 foilding (not included)
- Lipo cell: 12 cells / 5000 – 6000mAh (not included)
- Esc: 120-160A / HV (not included)
SPECIFICATION
- Wingspan: 6000mm (236.2 in)
- Length: 2873mm (113.1 in)
- Flying weight: 14-18 kg
- Wing area: 219.4 dm2
- Wing loading: 64g/dm2
- Wing type: HQ airfoils
- Covering type: Genuine ORACOVER®
- Radio: 6 channel minimum (not included)
- Servo: 6 standard hi-torque servo: 2 aileron;
2 elevator; 1 rudder (not included)
- Recommended receiver battery:
6.0V 2400/2600mAh NiMH (2) (not included)
- Servo mount: 21mm x 42 mm
- Flap: 2 electric flaps 440mm (not included)
- Propeller: suit with your engine
- Motor: brushless outrunner 2600-3000 W,
149 KV (not included)
4
14
WING TIP
15
WING TIP
16
Carbon dihedral
brace
17
20
Remove the covering
19
Remove the covering
Remove the covering
1. Slide two carbon tube the wing.
joining the wing halves
2. Remove the covering.
18
3. Secure the screw.
INSTALLING THE elevator servos
1. Remove the covering.
2. Install the air brake into the bay.
Instruction Manual
K8B
2. Repeat step #1 - #4 from installing the aileron
control horn to install the control horn elevator.
Screw here