Phoenix Model RAINBOW 2000 Instruction Manual

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
RAINBOW 2000 GP/EP .46-.55 SCALE 1:5 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 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.

Instruction Manual

Instruction Manual

SPECIFICATION

- Wingspan: 2000mm (78.7in)

- Length: 1544mm (60.7 in)

- Flying weight: 3600-3800 gr

- Wing area: 66 dm2

- Wing loading: 55g/dm2

- Wing type: Naca airfoils

- Covering type: Genuine ORACOVER®

- Gear type: Aluminum main gear and spring tail

gear (included)

- Radio: 4 channel minimum (not included)

- Servo: 5 standard servo: 2 aileron; 1 elevator;

1 rudder; 1 throttle (not included)

- Servo mount: 21mm x 42 mm

- Propeller: suit with your engine

- Motor: brushless outrunner 1000-1400 W,

480 KV (not included)

- Gravity CG: 110-115 mm (4.3 in) Back from
the leading edge of the wing, at the fuselage

- Control throw Ailerons: Low: 10mm up/down,
10% expo; High: 12mm up/down, 10% expo

- Control throw Elevators: Low: 10mm up/down,
12% expo; High: 12mm up/down, 12% expo

- Control throw Rudder: Low: 25mm right/left,
15% expo; High: 40mm right/left, 15% expo

- Experience level: Beginer

- Plane type: Scale Civilian

RECOMMENDED MOTOR AND BATTERY SET UP

- Motor: RIMFIRE .46-.55 (not included)

- Lipo cell: 6 cells / 5500-6000mAh (not included)

- Esc: 50-80A (not included)

3. Place the servo into the servo tray. Center the

INSTALLING THE AILERON SERVOS

1. Install the rubber grommets and brass eyelets

2. Using a modeling knife, remove the covering

4. Using the thread as a guide and using masking

Instruction Manual

1

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
RAINBOW 2000 GP/EP .46-.55 SCALE 1:5 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 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.

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

C.A 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.

RAINBOW 2000

Instruction Manual

2

8

INSTALLING THE CONTROL HORNS

1. One aileron control horn in positioned on each
aileron. Using a ruler and a pen, locate and
mark the location of the control horn. It should
be mounted on the bottom side of the aileron at
the leading edge, in line with the aileron
pushrod.

2. Drill two 1.6mm holes through the aileron using
the control horn as a guide and screw the
control horn in place.

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

7

To the cowl

RAINBOW 2000

Instruction Manual

3. Repeat step # 1 - # 2 to install the control horn

2. Attach the clevis to the outer hole in the control

3. Locate one nylon servo arm, and using wire

4. Plug the aileron servo into the receiver and

5. Center the aileron and hold it in place using a

6. With the aileron and aileron servo centered,

7. Using pliers, carefully make a 90 degree bend

8. Insert the 90 degree bend down through the

INSTALLING THE AILERON LINKAGES

1. Working with the aileron linkage for now, thread

RIGHT WRONG

Instruction Manual

3

9. Repeat step # 4 - # 8 to install the second
aileron linkage. After both linkages are
completed, connect both of the aileron servo
leads using a Y-harness you have purchased
separately.

11

To the cowl

Silicone Tube

10

To the cowl

3. Repeat step # 1 - # 2 to install the control horn
on the opposite aileron.

2. Attach the clevis to the outer hole in the control
horn. Install a silicone tube on the clevis.

3. 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 accommodate the aileron
pushrod wire.

4. 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.

5. Center the aileron and hold it in place using a
couple of pieces of masking tape.

6. With the aileron and aileron servo centered,
carefully place a mark on the aileron pushrod
wire where it crosses the hole in the servo arm.

7. Using pliers, carefully make a 90 degree bend
down at the mark made. Cut off the excess
wire, leaving about 4mm beyond the bend.

8. 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.

INSTALLING THE AILERON LINKAGES

1. Working with the aileron linkage for now, thread
one nylon clevis at least 14 turns onto one of
the 2mm x 180mm threaded wires.

9

RIGHT WRONG

RAINBOW 2000

Instruction Manual

12

2. Glue wing joiner in wing halves with 30 minute
epoxy. Put epoxy on wing joiner and in wing
joiner pocket. Wipe off excess epoxy with a
paper towel and alcohol.

Joiner

13

Epoxy glue

WING ASSEMBLY

1. Remove the covering from the rear of the wing.

Remove the covering

HORIZONTAL STABILIZER INSTALLATION

1. Using a modeling knife, cut away the covering
from the fuselage for the stabilizer and remove it.

Instruction Manual

3. Hold wing halves with tape while epoxy cures..

5. Secure the wing to the fuselage using the

4. Cover wing join with self adhesive trim strip.

!

5. Remove the stabilizer. Using the lines you just

When cutting through the covering to remove it,

6. When you are sure that everything is aligned

7. After the epoxy has fully cured, remove the

Instruction Manual

8. Glue the elevator to the horizontal stabilizer by

4

Draw a center line

19

3. Check the fit of the horizontal stabilizer in its
slot. Make sure the horizontal stabilizer is
square and centered to the fuselage by taking
measurements, but don't glue anything yet.

4. With the horizontal stabilizer correctly aligned,
mark the shape of the fuselage on the top and
bottom of the tail plane using a water soluble /
non-permanent felt-tip pen.

2. Draw a center line onto the horizontal stabilizer.

20

HORIZONTAL STABILIZER INSTALLATION

1. Using a modeling knife, cut away the covering
from the fuselage for the stabilizer and remove it.

18

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Instruction Manual

14

3. Hold wing halves with tape while epoxy cures..

5. Secure the wing to the fuselage using the
plastic screws

17

Screw

16

Remove the covering

Plywood plate

15

4. Cover wing join with self adhesive trim strip.

Remove the covering

5

!

5. 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 remove 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.

6. 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
measurements one more time before the epoxy
cures. Remove any excess epoxy using a
paper towel and rubbing alcohol and hold the
stabilizer in place with T-pins or masking tape.

22

Glue with epoxy

23

C.A glue

21

Remove the covering

VERTICAL STABILIZER INSTALLATION

1. Using a modeling knife, remove the covering on
the top of the fuselage for the vertical stabilizer.

7. 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.

3. Now, remove the vertical stabilizer and using a
modeling knife, carefully cut just inside the
marked lines and remove the film on both sides
of the vertical stabilizer. Just as you did with the
horizontal stabilizer, make sure you only press
hard enough to cut the film, not the balsa
vertical stabilizer.

4. Slide the vertical stabilizer back in place. Using
a triangle, check to ensure that the vertical
stabilizer is aligned 90 degree to the horizontal
stabilizer.

24

Remove
the covering

25

Remove the covering

26

RAINBOW 2000

Instruction Manual

2. Slide the vertical stabilizer into the slot in the
mounting platform in the top of the fuselage.
Mark the shape of the fuselage on the left and
right sides of the vertical stabilizer using a
felt-tip pen.

8. Glue the elevator to the horizontal stabilizer by
C.A glue.

5. When you are sure that everything is a aligned

6. Glue the rudder to the vertical stabilizer by C.A

INSTALLING THE TAIL WHEEL

1. Using the knife cut away the wood from the

Instruction Manual

Instruction Manual

!

After installing the wheel pant, apply a small

9. Repeat step # 1-8 to install the second wheel

MAIN GEAR INSTALLATION

INSTALLING THE MAIN LANDING GEAR

1. Four nuts have been installed at the factory.

2. Install main landing gear into the fuselage using

6. Remove one nut, one flat washer. Attach the

7. Center both collars and wheel in the middle of

8. With the landing gear in place, tighten two nuts.

3. Using a modeling knife, carefully cut out two line

Just cut only one side of the wheel pant, where

4. Slide a 4.5mm nut/ two 16mm flat washers /

5. Slide the axle assembly into the wheel pant.
There are just one nut and two flat washers

!

28

5. 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 vertical
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
stabilizer in place with T-pins or masking tape.
Allow the epoxy to fully cure before proceeding.

6. Glue the rudder to the vertical stabilizer by C.A
glue.

Hinge

Glue with epoxy

27

31

30

29

INSTALLING THE TAIL WHEEL

1. Using the knife cut away the wood from the
bottom of the rudder and slide the two nylon
clasps into the slot. Using C.A glue the nylon
clasps as shown.

2. Set the tail wheel assembly in place on the
plywood plate.

3. Drill 2,6mm pilot holes through the plywood
plate.

4. Secure the tail wheel bracket in place using two
3mm x 12mm screw.

5. Align the tail wheel wire so that the wire is
parallel with the bottom of the rudder.

Screw

Collar

6

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Instruction Manual

Cut

32

INSTALLING THE WHEEL PANTS

1. Locate the wheel pants from the hardware bag.
Mark the locations of the mounting axles onto
the wheel pants. The locations of the two
mounting holes are the middle of the wheel
opening, on right side, left side and 10mm from
the bottom of the wheel pant.

2. Using a 5mm drill bit, carefully drill two pilot
holes through the wheel pant at the TWO
marks you made.

C.A glue

7

RAINBOW 2000

Instruction Manual

INSTALLING THE ENGINE

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 THROTTLE PUSHROD HOUSING

1. Place the engine into the engine mount and
align it properly with the front of the cowling.
The distance from the firewall to the front of the
engine thrust washer should 110mm.

If your engine is equipped with a remote needle

valve, we suggest installing it into the engine at
this time.

2. When satisfied with the alignment of the engine,
use a pencil and mark the mounting hole
location onto the firewall, where the throttle
pushrod will exit.

3. Now, remove the engine. Using a 5mm drill bit,
drill holes through the firewall and the forward
bulkhead at the marks made.

4. Slide the pushrod housing through the hole in
the firewall, through the hole in the forward
bulkhead, and into the servo compartment.

5. Apply a couple of drops of thin C/A to the
pushrod housing where it exits the firewall and
where it passes through the forward bulkhead.
This will secure the housing in place.

6. Using a modeling knife, cut off the nylon

pushrod

housing 26mm in front of the servo tray.

!

Screw

33

16mm flat washer

!

After installing the wheel pant, apply a small

drop of thin C/A to the bottom nut.

9. Repeat step # 1-8 to install the second wheel
pant assembly.

MAIN GEAR INSTALLATION

INSTALLING THE MAIN LANDING GEAR

1. Four nuts have been installed at the factory.

2. Install main landing gear into the fuselage using
(4) 4mm x 20mm machine screws and 16mm
flat washers provided in the kit.

34

6. Remove one nut, one flat washer. Attach the
main landing gear to the axle.

7. Center both collars and wheel in the middle of
the wheel pant, lock both collars in place using
a hexagon 2mm screw.

8. With the landing gear in place, tighten two nuts.

3. Using a modeling knife, carefully cut out two line

from the margin of the hole onto the wheel pant.

Just cut only one side of the wheel pant, where

the main gear will install. Be sure to make a left
and right wheel pant.

4. Slide a 4.5mm nut/ two 16mm flat washers /

4.5mm nut / collar / wheel / collar onto the axle.

5. Slide the axle assembly into the wheel pant.

There are just one nut and two flat washers

outside of the wheel pant.

!

Remove the covering

35

Screw

5. Test fit the stopper assembly into the tank. It

6. When satisfied with the alignment of the stopper

7. Using a modeling knife, cut 3 lengths of fuel line

8. Feed three lines through the fuel tank

3. Carefully bend the second nylon tube up at a 45

4. Carefully bend the third nylon tube down at a 45

When the stopper assembly is installed in the

!

Blow through one of the lines to ensure the fuel

Do not secure the tank into place permanently

9. To secure the fuel tank in place, apply a bead of

!

Instruction Manual

FUEL TANK

INSTALLING THE STOPPER ASSEMBLY

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
stopper.

8

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Instruction Manual

36

INSTALLING THE MOTOR AND BATTERY

This model can fly with electric, here is our
recommended for set up the system.

- Motor brushless: Rimfire .46 - .55

- Lipo cells: 6 cells / 5500 - 6000 mAh.

- ESC: 50A - 80A.

Installing the electric motor

38

40

41

ESC

42

Battery

39

Screw

37

60mm

35mm

16mm

43

To carburator

Zip tie

To muffler

To vent Tube

44

SERVO INSTALLATION

INSTALLING THE FUSELAGE SERVOS

1. Install the rubber grommets and brass collets
into the elevator, rudder and throttle servos.
Test fit the servos into the servo tray. Trim the
tray if necessary to fit your servos

2. Mount the servos to the tray using the mounting
screws provided with your radio system.

INSTALLING THE ELEVATOR PUSHROD

1. Locate the pushrod exit slot on the right side
and left side of the fuselage. It is located
slightly ahead and below the horizontal
stabilizer.

45

Throttle servo

Rudder servo

Elevator servo

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.

6. When satisfied with the alignment of the stopper
assembly tighten the 3mm x 20mm machine
screw until the rubber stopper expands 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.

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.

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.

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

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.

!

Blow through one of the lines to ensure the fuel

lines have not become kinked inside the fuel
tank compartment. Air should flow through
easily.

Do not secure the tank into place permanently

until after balancing the airplane. You may
need to remove the tank to mount the battery in
the fuel tank compartment.

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.

!

9

RAINBOW 2000

Instruction Manual

2. Carefully cut away the covering material from

3. Working from inside the fuselage, slide the

4. Install the clevis into the two elevator pushrod.

5. The control horn should be mounted on the

6. Drill two holes through the elevator using the

7. Attach clevis to the hole in the control horn.

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48

Control horn

Control horn

47

Control horn elevator

2. Carefully cut away the covering material from
the slot.

3. Working from inside the fuselage, slide the
threaded end of the pushrod until it reaches the
exit slot. Carefully reach in with a small screw
driver and guide the pushrod out of the exit slot.

4. Install the clevis into the two elevator pushrod.
Make sure 6mm of thread shows inside the clevis.

5. The control horn should be mounted on the
bottom, left side and right side of the elevator at
the leading edge, in line with the elevator pushrod.

6. Drill two holes through the elevator using the
control horn as a guide and screw the control
horn in place.

7. Attach clevis to the hole in the control horn.
Install a silicone tube on the clevis.

8. Connect the two elevator pushrod using the
metal domino.

9. 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 to accommodate the elevator pushrod wire.

10. Plug the elevator 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
fuselage.

11. Be sure both elevator halves are flat. Center
both elevator halves and hold them in place
using a couple of pieces of masking tape.

12. With the elevator halves and elevator servo
centered, carefully place a mark on the elevator
pushrod wire where it crosses the hole in the
servo arm.

13. Using pliers, carefully make a 90 degree bend
up at the mark made. Cut off the excess wire,
leaving about 8mm beyond the bend.

14. Insert the 90 degree bend up 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 the elevator halves.

49

50

Elevator servo

Metal domino

INSTALLING THE RUDDER PUSHROD

1. Locate the pushrod exit slot on the right of the
fuselage.

2. Carefully cut away the covering material from
the slot.

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RAINBOW 2000

Instruction Manual

46

Remove the covering

6. Drill two holes through the rudder using the

7. Attach clevis to the hole in the control horn.

3. Working from inside the fuselage, slide the

4. Install the clevis on the rudder pushrod. Make

5. The control horn should be mounted on the left

8. Locate one nylon servo arm, and using wire

9. Plug the rudder servo into the receiver and

10. Center the rudder and hold it in place using a

11. With the rudder and rudder servo centered,

12. Using a pliers, carefully make a 90 degree

13. Insert the 90 degree bend up through the hole

Instruction Manual

MOUNTING THE COWL

1. Remove the muffler and needle valve

2. Measure and mark the locations to be cut out

!

4. While holding the cowl firmly in position, drill

5. Using a 2mm drill bit, enlarge the four holes in

Enlarging the holes through the cowl will

6. Slide the cowl back over the engine and

7. Install the muffler. Connect the fuel and

3. Slide the cowl back into place. Align the front

Instruction Manual

6. Drill two holes through the rudder using the
control horn as a guide and screw the control
horn in place.

7. Attach clevis to the hole in the control horn.
Install a silicone tube on the clevis.

3. Working from inside the fuselage, slide the
threaded end of the remaining pushrod down
the inside of the fuselage until the pushrod
reaches the exit slot. Carefully reach in with a
small screw driver and guide the pushrod out of
the exit slot.

4. Install the clevis on the rudder pushrod. Make
sure 6mm of thread shows inside the clevis.

5. The control horn should be mounted on the left
side of the rudder at the leading edge, in line
with the rudder pushrod.

52

8. 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 to accommodate the rudder pushrod wire.

9. Plug the rudder servo into the receiver and

center the servo. Install the servo arm onto the
servo.

10. Center the rudder and hold it in place using a

piece of masking tape.

11. With the rudder and rudder servo centered,

carefully place a mark on the rudder pushrod
wire where it crosses the hole in the servo arm.

12. Using a pliers, carefully make a 90 degree

bend up at the mark made. Cut off excess wire,
leaving about 8mm beyond the bend.

13. Insert the 90 degree bend up 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 rudder.

53

11

INSTALLING THE THROTTLE

1. 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 material from
the arm.

After installing the adjustable metal connector

apply a small drop of thin C/A to the bottom
nut. This will prevent the connector from
loosening during flight.

!

2. Plug the throttle servo into the receiver and turn
on the radio system. Check to ensure that the
throttle servo output shaft is moving in the
correct direction. When the throttle stick is
moved forward from idle to full throttle, the
throttle barrel should also open and close using
this motion. If not, reverse the direction of the
servo, using the transmitter.

3. Slide the adjustable metal connector / servo
arm assembly over the plain end of the
pushrod wire. Position the throttle stick and the
throttle trim at their lowest positions.

4. Manually push the carburator barrel fully closed.
Angle the arm back about 45 degree from
center and attach the servo arm onto the servo.
With the carburator barrel fully closed, tighte
the set screw in the adjustable metal connector.

5. Remove the excess throttle pushrod wire using
wire cutters and install the servo arm retaining
screw.

RAINBOW 2000

Instruction Manual

51

Remove the covering

Rudder servo

54

INSTALLING THE SWITCH

1. The switch should be mounted on the fuselage

2. Cut out the switch hole using a modeling knife.

3. Secure the switch in place using the two

BALANCING

1. It is critical that your airplane be balanced

THE CENTER OF GRAVITY IS LOCATED

2. Mount the wing to the fuselage. Using a couple

3. Turn the airplane upside down. Place your

4. If the nose of the plane falls, the plane is nose

Instruction Manual

12

MOUNTING THE COWL

1. Remove the muffler and needle valve
assembly from the engine. Slide the fiberglass
cowl over the engine.

2. Measure and mark the locations to be cut out
for engine head clearance, needle valve,
muffler,. Remove the cowl and make these
cutouts using a rotary tool with a cutting disc
and a rotary sanding drum attachment.

!

4. While holding the cowl firmly in position, drill
four 1,6mm pilot holes through both the cowl
and the side edges of the firewall.

5. Using a 2mm drill bit, enlarge the four holes in
the cowling

Enlarging the holes through the cowl will

prevent the fiberglass from splitting when the
mounting screws are installed.

6. Slide the cowl back over the engine and
secure it in place using four 3mm x 12mm
wood screws.

7. Install the muffler. Connect the fuel and
pressure lines to the carburator, muffler and
fuel filler valve. Tighten the screws
completely.

56

FINAL ASSEMBLY

INSTALLING THE SPINNER

Install the spinner back-plate, propeller and

spinner cone. The spinner cone is held in place
using two 3mm x 12mm wood screws.

The propeller should not touch any part of the

spinner cone. If it dose, use a sharp modeling
knife and carefully trim away the spinner cone
where the propeller comes in contact with it.

!

58

57

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.

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.

3. Slide the cowl back into place. 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 the middle of the precut
opening. Hold the cowl firmly in place using
several pieces of masking tape.

RAINBOW 2000

Instruction Manual

Screw

55

Throttle servo

FLIGHT PREPARATION PRE FLIGHT CHECK

1. Completely charge your transmitter and receiver

2. Check every bolt and every glue joint in your

3. Double check the balance of the airplane

4. Check the control surface

5. Check the receiver antenna. It should be fully

6. Properly balance the propeller.

Instruction Manual

13

INSTALLING THE SWITCH

1. The switch should be mounted on the fuselage
side, opposite the muffler, close enough to the
receiver so the lead will reach. Use the face
plate of the switch cut out and locate the
mounting holes.

2. Cut out the switch hole using a modeling knife.
Use a 2mm drill bit and drill out the two
mounting holes through the fuselage side.

3. Secure the switch in place using the two
machine screws provided with the radio system.

59

110-115mm

Elevator Control

Aileron Control

10mm
10mm

Rudder Control

25mm
25mm

10mm
10mm

Ailerons : 10mm up 10mm down
Elevator : 10mm up 10mm down
Rudder : 25mm right 25mm left

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

110-115mm BACK FROM THE LEADING
EDGE OF THE WING, AT THE FUSELAGE.

2. Mount the wing to the fuselage. Using a couple
of pieces of masking tape, place them on the
top side of the wing 110-115mm 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

1. 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.

!

2. 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.

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.

RAINBOW 2000

Instruction Manual

Receiver

Baterry

14

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.

RAINBOW 2000

Instruction Manual

I/C FLIGHT GUIDELINES

Made in Vietnam

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.