arf Thunder Streak Instruction Manual Download Page 1

Page: 1 / 16

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.

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

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.

SPECIFICATION
- Wingspan: 1150mm (45.3 in)
- Length: 1587mm (62.5 in)
- Flying weight: 5.0 - 5.3 kg
- Wing area: 40dm2
- Wing loading: 125g/dm2
- Wing type: Naca airfoils
- Covering type: Genuine ORACOVER®
- Retract gear type: Electric retract gear (not
included); CNC Suspension Metal Struts (included)
- Radio: 6 - 9 channel . 7 mini hi-torque servo:
2 aileron; 2 flap; 2 rudder; 1 steering nose;
2 standard hi-torque servo (minimum 9kg) for
2 elevator (not included)
- Servo mount : 12mm x 24mm; 21mm x 42mm
- Engine: edf 90mm with minimum thrust up 4 kg ;
8-12 cells (not included)

- Gravity CG: 90 mm (3.5 in) Back from the leading
edge of the wing, at the fuselage
- Control throw Ailerons: Low: 8mm up/down,
10% expo; High: 10mm up/down, 10% expo
- Control throw Elevators: Low: 9mm up/down,
12% expo; High: 12mm up/down, 12% expo
- Control throw Rudder: Low: 15mm right/left,
15% expo; High: 20mm right/left, 15% expo
- Control throw flap : Mid : 15mm down;
Landing : 20mm down
- Experience level: advanced
RECOMMENDED EDF AND BATTERY SET UP
- EDF: 90mm, Minimum thrust 4 kg. Midi-Fan evo/
HET 650-68-1130 WeMoTec (not included)
- Lipo cell: 8-12 cells / 5000mAh 60C (not included)
- Esc: 120-160 A Phoenix Castle (not included)

I n s t r u c t i o n M a n u a l

THUNDER STREAK

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

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:

1. 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 THUNDER  STREAK  EDF  90MM
ARF  SCALE  1:7  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.

2. 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.

• 2 bender plier
• Wire cutters
• Masking tape
• Thread lock
• Paper towels
• Rubbing alcohol

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.

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. 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.

C.A glue

Remove the covering

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.

To the cowl

THUNDER STREAK

Instruction Manual

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.

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. Place the aileron servo tray / hatch into the

servo  box  on  the  bottom  of  the  wing  and  drill
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 ).

6. Repeat step # 2 - # 5 to install the second

aileron servo in the opposite wing half.

INSTALLING THE CONTROL HORNS

1. Remove the covering from the slot on the

bottom of the aileron.

2. Insert the control horn into the slot and secure it

by using C.A glue.

To the cowl

Remove the covering

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

on the opposite aileron.

C.A glue

control

THUNDER STREAK

Instruction Manual

INSTALLING THE AILERON LINKAGES

1. Working with the aileron linkage for now, thread

one clevis at least 14 turns onto one of the
threaded wires.

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

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 CONTROL HORNS for flap

Repeat step #1 - #3 from installing the control

horn for aileron to install the control horn for
flap.

INSTALLING THE flap LINKAGE

Repeat step #1 - #9 from installing the aileron

linkage to install the flap linkage.

C.A glue

1. Slide the air inlet to the fuselage.

5. Slide and fix the air outlet.

4. Secure the EDF.

INSTALLING THE EDF (Electric ducted fan)

system

3. Trim 1 hole from the air outlet for the wires of EDF.

2. Slide the air outlet to the fuselage.

THUNDER STREAK

Instruction Manual

Epoxy glue

Remove the
covering

Screw

4. Secure the strut suspension to the electric

retract and slide the two cable to the steering
plate.

Crimp

5. Install the nose retract.

Screw

Remove the plastic

C.A glue

3. Install the steering nose servo into the servo tray

in the fuselase.

2. Glue the wheel well by C.A glue.

INSTALLING THE STEERING NOSE gear

Trim the plastic wheel well

Screw

5. Install and secure the wheel.

THUNDER STREAK

Instruction Manual

Screw

6. Secure the strut suspension to the retract.

7. Lock-up the axle.

10. Slide the extension servo lead through the
fuselage. Install the vertical stabilizer and glue it
using epoxy glue.

Servo lead

THUNDER STREAK

Instruction Manual

8. Remove the covering.

Remove the

covering

Remove the covering

7. Repeat these step from installing the aileron
linkages to install the rudder linkages.

4. Secure the servo plate.

5. Remove the covering.

C.A glue

Remove the covering

6. Install and glue the rudder control horn.

3. Install the rudder servo.

Screw

9. Remove the covering from the fuselage.

6. Slide and install the two spring steering nose to

the retract.

7. Secure the alxe.

8. Install two cable to the steering servo nose gear.

Spring

Screw

THUNDER STREAK

Instruction Manual

M3 Clevis

Remove the covering

C.A glue

- Remove the covering from the Horizontal

Stabilizer for the elevator dihedral.

- Insert the carbon tube to the elevator and glue it

by C.A glue.

INSTALLING THE HORIZONTAL STABILIZER

We are hightly recommended using the digital
servo with the torque minimum 9kg.

- Install two elevator servo to the fuselage.

THUNDER STREAK

Instruction Manual

INSTALLING THE VERTICAL STABILIZER

1. Repeat these step from the installing aileron for

the installing rudder.

C.A glue

Remove the covering

2. Remove the covering.

Screw

Elevator servo

Clevis M3

Link-ball M3

INSTALLING THE ELEVATOR LINKAGES

40mm

Make the same way from installing the aileron
linkages for installing the elevator linkges.

- Attach and secure the horizontal stabilizer to the

fuselage using aluminum control horn. Each

control horn secure by 2 screw and using “Loctite”

lock these screw.

- Make the same way for the second elevator.

C.A glue

THUNDER STREAK

Instruction Manual

C.A glue

7. Trim the plastic inlet lip.

8. Glue the plastic inlet lip to the fuselage using
C.A glue.

10. Glue the air cooling exhaust plastic by C.A glue.

6. Glue the wooden belt for EDF (Included with the

kit) using C.A glue.

9. Cut the hole on the fuselage for installing the air

cooling exhaust plastic.

Air cooling exhaust plastic

Remove the
covering

C.A glue

Wooden

belt

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.

Ailerons : 10mm up 10mm down

Elevator : 12mm up 12mm down

Rudder : 20mm right 20mm left

Hi RATE

Aileron Control

8mm

Rudder Control

15mm

Flap Control

15mm

Elevator Control

9mm

THUNDER STREAK

Instruction Manual

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.

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.

Ailerons : 8mm up 8mm down

Elevator : 9mm up 9mm down

Rudder : 15mm right 15mm left

Flap T/O: 15mm - Landing 20mm

LOW RATE

THUNDER STREAK

Instruction Manual

OPEN AND CLOSE the canopy

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
90mm BACK FROM THE LEADING EDGE OF
THE  WING, AT THE  FUSELAGE.  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 90mm 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.

- Here is our set up for testing flying.

- 10 cell thunder power 5000 mAh 70c.

- Wemotec ducted fan with HET 650-68-1130.

- ESC 120A phoenix.

Open and Close

- Drill four holes 10mm on the air inlet, behind the

ESC for cooling the ESC.

90mm

Holes 10mm

Lipo battery

ESC

THUNDER STREAK

Instruction Manual

INSTALLING THE LANDING GEAR

1. The retract set (Electric retract not included with

the kit).

Not included

Included

with the kit

C.A glue

2. Trim the plastic wheel well.

3. Glue the plastic wheel well.

- In case you want to use with the electric retract

(not included with the kit), please pay attention with
the dimension as picture below.

Screw

4. Secure the retract to the wing.

- We would like provide you some link for electric
retract suit with Thunder streak

Link electric nose gear Thunder streak
http://hobbyking.com/hobbyking/store/__56195__
Servoless_Steerable_Nose_Retract_with_Metal_
Trunion_44mm_x_41mm_Mount_EU_Warehouse
_.html

Link electric main gear Thunder streak

http://hobbyking.com/hobbyking/store/__28976__
Servoless_Retract_with_Metal_Trunion_44mm_x
_41mm_Mount_2pcs_.html

74mm

33mm

36mm

21mm

Electric retract gear (not included)

28mm

Electric retract gear (not included)