background image

I/C FLIGHT WARNINGS

Always  operate  in  open  areas,  away 

from  factories,  hospitals,  schools, 

buildings and houses etc. 

NEVER

 fly 

your aircraft close to people or built 

up areas.

THE PROPELLER IS DANGEROUS

 

Keep  fingers,  clothing  (ties,  shirt 

sleeves,  scarves)  or  any  other  loose 

objects that could be caught or drawn 

in, away from the propeller. Take care 

at 

ALL 

times.

Keep  all  onlookers  (especially  small 

children and animals) well back from 

the area of operation. This is a flying 

aircraft,  which  will  cause  serious 

injury in case of impact with a person 

or animal.

NEVER

 fly near power lines, aerials 

or  other  dangerous  areas  including 

airports, motorways etc.

NEVER

  use  damaged  or  deformed 

propellers or spinners.

DO  NOT 

dispose  of  empty  fuel 

containers on a fire, this can lead to 

an explosion.

NEVER

  fly  in  wet  conditions  or  on 

windy or stormy days.

ALWAYS 

adjust  the  engine  from 

behind the propeller, and do not allow 

any  part  of  your  body  to  be  in  line 

with the propeller.

14

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

20

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.

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.

     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.  Secure the fuel tank.

!

To carburator 

To muffler

35

34

36

Elevator servo

Rudder servo

Throttle servo

7.    Attach  clevis  to  the  third  hole  in  the  control 

horn. Install a silicone tube on the clevis.

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 elevator pushrod wire.

9.    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.

INSTALLING THE ELEVATOR PUSHROD

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

the  fuselage.  It  is  located  slightly  ahead  and 
below the horizontal stabilizer.

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 on the elevator pushrod. Make 

sure 6mm of thread shows inside the clevis.

5.  The  control  horn  should  be  mounted  on  the 

bottom,  left  side  of  the  elevator  at  the  leading 
edge, in line with the elevator pushrod.

6.  Drill two 3mm holes through the elevator using 

the  control  horn  as  a  guide  and  screw  the 
control horn in place.

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10.  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. 

11. Using  pliers,  carefully  make a 90 degree  bend 

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

12. 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.

13.  Using  thick  CA  glue,  secure  the  pushrod 

sleeves to the pushrod sleeve guide.

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38

37

Control horn elevator

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.

40

INSTALLING THE RUDDER PUSHROD

1.    Locate  the  pushrod  exit  slot  on  the  left  of  the 

fuselage.

2.    Carefully  cut  away  the  covering  material  from 

the slot.

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.

6.    Drill  two  3mm  holes  through  the  rudder  using 

the  control  horn  as  a  guide  and  screw  the 
control horn in place. 

7.    Attach  clevis  to  the  third  hole  in  the  control 

horn. Install a silicone tube on the clevis.

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.

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45

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.

!

14.Using  thick  CA  glue,  secure  the  pushrod 

sleeves to the pushrod sleeve guide.

41

42

43

44

!

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.

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!

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.

21

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.

23

Glue with epoxy

22

Remove the covering

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.

 INSTALLING the VERTICAL STABILIZER

1.  Using a modeling knife, remove the covering on 

the top of the fuselage for the vertical stabilizer.

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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.

24

Remove the covering

25

!

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.

3.    Strap  the  battery  pack  and  receiver  onto  the 

wing joiner tube in the fuselage.

      Do  not  permanently  secure  the  receiver  and 

battery until after balancing the model. 

4.    Using  a  2mm  drill  bit,  drill  a  hole  through  the 

side  of  the  fuselage,  near  the  receiver,  for  the 
antenna to exit.

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.

46

Receiver

Battery

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 Ailerons : 10mm up 

10mm down

 Elevator : 12mm up 

12mm down

 Rudder  : 20mm right  20mm left
 Flap       : 12mm down

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 heavy 

nose.  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. 

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.

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 

100mm  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  100mm  back  from  the 
leading edge, at the fuselage sides.

95-100mm

!

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.

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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.

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. 

Glue with epoxy

27

Remove the covering

26

28

INSTALLING the LANDING GEAR

1.    Locate  the  two  main  landing  gear  wires,  one 

nose  gear  wire,  four  nylon  mounting  straps 
eight  3*12mm  Phillips  head  sheet  metal 
screws,  three  wheels,  six  wheel  collars  w/set 
screws,  and  one  nylon  steering  arm  with  set 
screw. 

30

Wheel

Collar

2.  Test  fit  the  two  main  gear  wires  into  the 

channels.  When  satisfied  with  the  fit,  secure 
the wires in place.

3.    Install  two  of  the  wheels  onto  the  axles  using 

the four wheel collars and set screws provided. 
The  wheels  should  be  centered  on  the  axles 
with a wheel collar on each side, holding them 
in  place. Tighten  the  set  screws  on  the  collars 
to  secure  them  in  place.The  wheels  should 
rotate  freely. You  should  apply  a  small  drop  of 
lock-Tite  thread  lock  to  each  set  screw  to 
prevent them from coming loose.

4.  Remove  the  hatch  cover  from  the  bottom  front 

of  the  fuselage.  Working  with  the  preinstalled 
nylon steering housing, position it so the end of 
it  is  flush  with  the  front  of  the  firewall.  When 
satisfied  with  the  fit,  glue  the  housing  to  the 
firewall from the inside of the fuselage using 5 
Minute Epoxy.

29

Main gear

Screw

Metal plate

BOOMERANG 60

Instruction Manual

8

5.    The  preinstalled  wire  steering  pushrod  has  a 

factory  made  Z-Bend  on  the  front  end  of  it. 
Connect  the  nylon  steering  arm  to  this 
pushrod.  The  pushrod  should  be  installed  in 
the outermost hole in the steering arm.

INSTALLING THE ENGINE

1. 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. 

6.  Locate the nose gear wire. Slide the nose gear 

wire  up  through  the  lower  portion  of  the  nose 
gear  block,  then  through  the  nylon  steering 
arm, then through the upper portion of the nose 
gear  block.  The  top  of  the  nose  gear  wire 
should  be  flush  with  the  top  of  the  nose  gear 
bracket.

7.    With  the  nose  gear  wire  straight,  angle  the 

nylon  steering  arm  about  300  forward  of  the 
fire-wall  and  tighten  the  set  screw. Angling  the 
arm forward like this will allow room for the arm 
to move back for more adequate steering.

8.  Install the remaining wheel onto the axle using 

the two wheel collars and set screws provided. 
The wheel should be centered on the axle with 
a wheel collar on each side, holding it in place. 
Tighten the set screws on the collars to secure 
them  in  place.  The  wheel  should  rotate  freely. 
You  should  apply  a  small  drop  of  Lock_tite 
thread  lock  to  each  set  screw  to  prevent  them 
from coming loose.

SET
SCREW

STREERING
ARM                        

Z-BEND

PUSHROD WIRE

FIGURE #4

Machine screw (alxe)

32

Steering arm

Set screw arm

Nose gear

31

33

120mm

FUEL TANK installation
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.

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.

!

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 
BOOMERANG  60  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.

BOOMERANG 60

Instruction Manual

2

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

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

2

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.

3

BOOMERANG 60

Instruction Manual

3

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

4

7

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

on the opposite aileron.

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. 

RIGHT

WRONG

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 ).

7.  Using masking tape, tape the servo leads on to 

the top of the wing.

5

6

8

INSTALLING THE CONTROL HORNS for flap

        Repeat  step  #1  -  #3  from  installing  the  control 

horn  for  aileron  to  install  the  control  horn  for 
flap. 

BOOMERANG 60

Instruction Manual

4

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

10

WING ASSEMBLY

1.   Draw a center line on the wing joiner.

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.

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.

Silicone Tube

11

12

13

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.

INSTALLING THE flap LINKAGE

      Repeat step #1 - #9 from installing the aileron 

linkage to install the flap linkage.

BOOMERANG 60

Instruction Manual

13

Aileron Control

10mm 

10mm 

Rudder Control

20mm 

20mm 

Flap Control

12mm 

Elevator Control

12mm 

12mm 

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.

Wingspan : 

1884 

mm (74.17 in)

Length  : 

1450 mm 

(57.09 in)

Weight  : 

4000 gr

Engine 

60 two strokes

Radio 

: 4 channels / 5 servo standard

I n s t r u c t i o n   M a n u a l

KIT CONTENTS: We have organized the parts as they come out of the box for better identification 
during assembly. We recommend that you regroup the parts in  the same manner. This will ensure you 
have all of parts required before you begin assembly

BOOMERANG 60

Instruction Manual

1

MOTOR MOUNT ASSEMBLY

• (4) 4mm x 30mm screws

• (4) 4mm lock washer

• (8) 8mm lock washer

• (8) Nut

• (2) Engine mount

• (4) 4mm x 25mm screws

FUEL TANK

• (1) Nylon fuel tank
• (1) Metal clunk
• (1) Pre - assembled stopper w / 2 tube

MISCELLANEOUS ITEMS

• (2) Aluminum small dihedral
• (1) Aluminum large dihedral
• (1) 25mm x 600mm trim tape (white)
• (2) Metal connector
• (2) 1.7mm x 800mm metal pushrod
• (1) Spinner/screw 
• (2) Wing screws

ADDITIONAL ITEMS REQUIRED

• 60 two stroke Engine
• 90 four stroke Engine..
• 4 channel Radio with 4 servos.
• Glow plug to suit Engine.
• Propeller to suit Engine.
• Protective foam rubber.
• Silicone fuel line.
• Stick on weight for balance.

TOOLS AND SUPPLIES NEEDED

• Medium thick C/A glue.
• 30 minute Epoxy.
• 6 minute Epoxy.
• Hand or Electric drill.
• Assorted drill bits.
• Modeling knife.
• Straight edge ruler.
• Pliers - large and  small.
• Wire cutters.
• Masking tape.
• Thread lock.
• Paper towels.
• Rubbing alcohol

KIT CONTENTS

AIR FRAME ASSEMBLIES

• (2) Wing halves with ailerons
• (1) Fuselage with motor mount
• (1) Horizontal stabilizer with elevator halves
• (1) Vertical stabilizer with rudder

MAIN GEAR ASSEMBLY

• (2) Main gear (5mm)
• (2) 65mm diameter wheels
• (4) Wheel Collars (5mm)
• (4) 3mm x 6mm set screws
• (3) Nylon straps
• (6) 3mm x 12mm sheet metal screws

NOSE GEAR

• (1) Nose gear
• (1) Steering arm
• (1) 65mm wheel
• (1) Metal connector
• (1) 5mm flat washer
• (1) 5mm x 45mm machine screw

ELEVATOR CONTROL SYSTEM

• (1) M2 clevis.
• (1) Silicone tube
• (1) Nylon snap keeper
• (1) Nylon control horn w/plate
• (2) 2mm x 16mm sheet metal screws

RUDDER CONTROL SYSTEM

• (1) M2 clevis 
• (1) Silicone tube
• (1) Nylon snap keeper
• (1) Nylon control horn w/plate
• (2) 2mm x 16mm  sheet metal screws

AILERON CONTROL SYSTEM

• (4) 2mm x 180mm threaded wires
• (4) M2 clevises
• (4) Silicone tubes
• (4) Nylon snap keepers
• (4) Nylon Thread connectors
• (4) 2mm x 30mm screws
• (4) 2mm x 20mm wood screws
• (16) 2mm x 10mm wood screws

Draw a center line

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.

INSTALLING the HORIZONTAL STABILIZER

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

19

BOOMERANG 60

Instruction Manual

5

4.   Cover wing joint with self adhesive trim strip.

17

Tape

18

HORIZONTAL-VERTICAL INSTALLATION

14

Center line

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. 

3.  Hold  wing  halves  together  with  tape  while 

epoxy cures.

Joiner

15

Epoxy glue

16

Tape

2. Draw a center line onto the horizontal stabilizer.

Screw

Summary of Contents for Boomerang 60

Page 1: ...Wingspan 1884 mm 74 17 in Length 1450 mm 57 09 in Weight 4000 gr Engine 60 two strokes Radio 4 channels 5 servo standard I n s t r u c t i o n M a n u a l ...

Page 2: ...hick C A glue 30 minute Epoxy 6 minute Epoxy Hand or Electric drill Assorted drill bits Modeling knife Straight edge ruler Pliers large and small Wire cutters Masking tape Thread lock Paper towels Rubbing alcohol KIT CONTENTS AIR FRAME ASSEMBLIES 2 Wing halves with ailerons 1 Fuselage with motor mount 1 Horizontal stabilizer with elevator halves 1 Vertical stabilizer with rudder MAIN GEAR ASSEMBLY...

Page 3: ... 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 nea...

Page 4: ...de 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 RIGHT WRONG 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 t...

Page 5: ...ole 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 ...

Page 6: ...NSTALLING the HORIZONTAL STABILIZER 1 Using a modeling knife cut away the covering from the fuselage for the stabilizer and remove it 19 BOOMERANG 60 Instruction Manual 5 4 Cover wing joint with self adhesive trim strip 17 Tape 18 HORIZONTAL VERTICAL INSTALLATION 14 Center line 2 Glue wing joiner in wing halves with 30 minute epoxy Put epoxy on wing joiner and in wing joiner pocket Wipe off excess...

Page 7: ...e 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 23 Glue with epoxy 22 Remove the covering 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...

Page 8: ... the epoxy to fully cure before proceeding Glue with epoxy 27 Remove the covering 26 28 INSTALLING the LANDING GEAR 1 Locate the two main landing gear wires one nose gear wire four nylon mounting straps eight 3 12mm Phillips head sheet metal screws three wheels six wheel collars w set screws and one nylon steering arm with set screw 30 Wheel Collar 2 Test fit the two main gear wires into the chann...

Page 9: ...two wheel collars and set screws provided The wheel should be centered on the axle with a wheel collar on each side holding it in place Tighten the set screws on the collars to secure them in place The wheel should rotate freely You should apply a small drop of Lock_tite thread lock to each set screw to prevent them from coming loose SET SCREW STREERING ARM Z BEND PUSHROD WIRE FIGURE 4 Machine scr...

Page 10: ...ugh 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 Secure the fuel tank To carburator To muffler 35 34 36 Elevator servo Rudder servo Throttle servo 7 Attach clevis to the third hole in the control horn Install a silicone tube on the clevis 8 Locate one nylon servo arm and u...

Page 11: ...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 40 INSTALLING THE RUDDER PUSHROD 1 Locate the pushrod exit slot on the left of the fuselage 2 Carefully cut away the covering material from the slot 3 Working from inside the fuselage ...

Page 12: ...o 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...

Page 13: ...y 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 n...

Page 14: ...y 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 ...

Page 15: ...ially small children and animals well back from the area of operation This is a flying aircraft which will cause serious injury in case of impact with a person or animal NEVER fly near power lines aerials or other dangerous areas including airports motorways etc NEVER use damaged or deformed propellers or spinners DO NOT dispose of empty fuel containers on a fire this can lead to an explosion NEVE...

Page 16: ... 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 ...

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