Freewing FJ307 User manual

www.sz-freewi
oshawk
EN

Introduction 
Congratulations on your purchase of the T-45 "Goshawk" 90mm EDF jet!
T-45 "Goshawk" is used by the United States Navy as an aircraft carrier-capable trainer and is a highly modified version of
the BAE Hawk land-based training jet aircraft. Because of its excellent performance, it became the only carrier dedicated trainer
in the US Navy .
With theT-45 "Goshawk" 90mm EDF jet, we spend a great amount of attention to detail as well as attention to structural
excellence and flight performance. This new design raises this foam jet to a new level of quality in both visual and flight
performance.
-Exquisite appearance
-High quality workmanship
-Excellent design
-Our first jet to incorporate slats ( using 4 worm drives to control the slats safely and reliably.)
-Retracts with scale shock absorbing landing gear
-7 LED high-light lights
-New T-45 integrated circuit module. ( We included the main wing electronic integrated circuit module for better
convenience when transporting and assembling based on the F16 integrated circuit module.)
-Magnetically attached nose cone and flexible pitot tube.
-All landing gear doors are sequential, giving the retracts a very scale appearance
-Functional flaps
-A huge battery compartment for larger batteries.
-Lots of cockpit space for those DYI folks who wish add more realism.
-A top flight speed of 165 KM/H with the standard power system
-3.65 KG Take-off weight (Includes a 6S 5000 35C lipo battery)
-Removable main wings for transport.
-Air-brakes
& NOTE:    


Note
T-45 Goshawk
 
   -1-
1. This is not a toy! Operators should have some basic experience. Beginners should operate only
under the guidance of a professional instructor.
2. Before beginning assembly, please read through the instructions and carefully follow them
throughout the build.
3. Freewing and it's vendors will not be held responsible for any losses due to improper assembly and
operation.
4. Model airplane operators must be at least 14 years of age.
5. This airplane is made of EPO foam material, covered with surface spray paint. Don't use
chemicals to clean as it may cause damage.
6. You should avoid flying in areas such as public places, areas with high voltage power lines, nearby
highways, airports or in other areas where laws and regulations clearly prohibit flight.
7. Do not fly in bad weather conditions, including thunderstorms, snow, etc...
8. Lipo batteries should be properly stored in a fire proof cont ainer and be kept at a minimum of 2M
distance away from flammable or explosive materials.
9. Damaged or scrap batteries must be properly discharged before disposal or recycling to avoid
spontaneous combustion and fire.
10. At the Flying Field, properly dispose of any waste you have created, don't leave or burn your
waste.. Ensure that your throttle is in the low position and that your radio is turned on before
connecting the Lipo battery.
11. Ensure that the throttle is in the lowest position and transmitter is turned on, before connecting a
Lipo Battery to the ESC of the aircraft.
12. Do not try to catch the airplane while in flight or during landing. Wait for the airplane to come to
a complete stop before handling.
New features

B asic Product I nformation
►I
Package C ontents
sa1
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









C

C


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 

 


e 
  
 



 





 
•

•
 
 
•
  
•

•

•
 
•
 (#P0904)
EN
Different types of kits will come with certain specific parts. Refer to the list of parts for your type of kit in the chart below.

 
 
 
 
 
 
T-45 Goshawk

 
  
  
  
  
✓ ✓ ✓
✓ ✓ ✓
✓ ✓ ✓
-2-
    
  ✓ ✓ ✓
  ✓ ✓ ✓
 
 ✓ ✓ ✓
  ✓ ✓

  ✓
  ✓

Fuselage A sse mb l y
Refer to the photo on the right
1.Use a servo tester or radio to center
the servo.
2.Use glue to attach the "17g servo box
(C)" and "Aileron horn (D)" to the aileron.
3.Place the servo into the "17g servo
box(C)", and feed the servo cable into
the "Servo trough(F)", then position the
"17g servo cover(B)" and use 2
"Screws (A)" to secure it.
4. Use the aileron pushrod to connect
the servo arm to the "Aileron horn(D)".
A- Carbon fiber tubes
B - Screw (PWA3'8mm)
C - Main wing fixed plastic part F1
D - Main wing fixed plastic part B
E -Air intake cover
 
 
A


1.lnsert the "Carbon fiber tubes(A)" into
one side of the main wing.
2.Slide the other main wing onto the
Carbon Fiber Tubes.
3.Thread "Screw(B)"in to the plastic bolt
to complete the main wing assembly.
4.lnsert the "Main wing plastic joiner
F1(C)" and "Main wing plastic joiner
B(D)"into the main wing.
5.Use glue to attach the "Air intake
cover (E)"to the main wing.
 f 


 

  -3-
EN


1. Apply glue to the indicated
areas and allow the glue to set
for approximately one minute.
2. Attach the Rear Fuselage
Section to the Main Fuselage
by joining and pulling it back off
a few times so the the glue
forms 'strings'.
3. Position the part to form the
complete fuselage.
4. Attach the Tail Cone Section
using the same method as
described in Step 2.
Rear Fuselage
Section
Tail cone Section
Main Wing Assembly
A- Screws (PWA1 .7x5mm 2pcs)
B - 17g servo cover
C - 17g servo box
D -Aileron control horn
E -Aileron pushrod
F - Servo trough
Main Wing Installation

Main W ing Installation
A- Screws (PA4x10mm 4pcs)
B - Screws (PA2.6x10mm 2pcs)
C - Main wing ribbon cables.
A-Screws (PWA1.7x5mm 2pcs)
B - 17g servo cover
C - 17g servo box
D - Elevator control horn
E - Elevator push rod
Elevator Installation
A-Screws (PA2.6x1Qmm 4pcs)
1.Use 4 "Screws (A)" to attach the
elevator to the fuselage.
T-45 Goshawk
 
  
EN
A
-4-
Refer to the photo on the right
1. Insert the "Main wing ribbon cables (C)"
into the fuselage battery compartment.
2. Use the "Screws(A)"and "Screws(B)" to
secure the main wing to the fuselage.
3. Plug the "Main wing ribbon
cables(C)"into the integrated circuit
module in the battery compartment.
Elevator Assembly
1. Use a servo tester or radio to center
the servo.
2. Use glue to attach the "17g servo
box(C)" to the horizontal stabilizer
and the "Elevator control horn(D)" to
the elevator.
3. Place the servo into the "17g servo
box(C)", then put the "17g servo
cover(B)" in place and secure it using
"Screws(A)".
4. Feed the open end of the pushrod
into the servo arm and lock it into
place with the provided lock.
5. Snap the clevis onto the ball link in
the "Elevator control horn(D)

Rudder Installat i on
A- Screws (FA3x6mm 4pcs)
1.Use the 4 "Screws(A)" to attach
the rudder.
1. Use glue to attach the pitot tube to the
nose cone.
2.Nose cone and fuselage are connected
with magnets.
T-45 Goshawk
 
  
EN
-
-

-5-
Elevator Installation
A-Screws (PWA1.7x5mm 2pcs)
B - 17g servo cover
C - 17g servo box
D - Rudder control horn
E - Rudder push rod
1. Use a servo tester or radio to center
the servo.
2. Use glue to attach the "17g servo
box(C)" to the Vertical stabilizer and
the "Rudder horn(D)"to the rudder.
3. Place the 17g servo in the "17g servo
box(C)", then put the "17g servo
cover(B)"in place and secure it using
2 "Screws(A)".
4. Feed the open end of the pushrod
into the servo arm and lock it into
place with the provided lock.
5. Snap the clevis onto the ball link in
the "Rudder control horn(D)".
Nose Cone Installation
Refer to the photo on the right
Refer to the photo on the right

Airplane Pushrod Size
 
















 



 
Flap pushrod size


Aileron push rod size
 

Elevator push rod size
   

Rudder pushrod size
 1

Air-brake Installation
Step4
T-45 Goshawk

 


3 3
3 3


1.Put the"Screw(B)"into the"Ball head(A)",
then insert "Screw(B)"into the hole of the
"Control horn(D)" and lock it into place using
"Nut(C)"
1. Thread the "Ball head clevis (B)"onto the
threaded end of "Pushrod (A)". Twist left or right
to increase or reduce the length of the pushrod.
2. Feed the angled side of the push rod into the
servo arm. Then place the second part of
"Plastic lock(C)" over the "Pushrod (A)" and
snap the "Plastic lock(C)" to the pushrodto
lockthe pushrodinplace.
Flap push rod mounting hole
 


  
Aileron push rod mounting hole





� ! 
 
Elevator push rod mounting hole
 
r 

  
Rudder pushrod mounting hole
Step 2
Accessories
A -Air-brake mount
B -Air-brake pin
C - E-clip (01.5mm)
D -Air-brake
E
- Servo (9g-MG)
Step 3
1. Follow Step 1 to assemble the air-brake.
2. Use glue to attach the servo.
3. Use glue to attach the air-brake to the fuselage.
4. Use the push rod to connect the air-brake to the servo
arm. Set up the open angle of the air brake by adjusting
the pushrod length.
(After setup, pay attention when cycling the air-brake. If
the servo makes a buzzing sound, increase the open
angle until it cycles silently.)
Air-brake push rod size Air-brake push rod installation hole



-6-

Slat Assembly
D2  
A- Slat pushrod
B - Metal pin
C - E-clip
 
1.Use "Metal pin(B)" and "E-clip(C)" to attach
one side of the slat pushrod to the slat
controller, use "Screw(D)" to attach the other
side to the plastic slat.
 "  m  "  " 
 "  "  " 
 "P  " 
 
 m
 
 h 
Attention:Slat assembly has 6 pieces.
Please refer to the letter in the plastic to
distinguish: L and R refer to the Left and
Right main wing, Figures 1-3 mean the
direction from wing root to wingtip .
Attention: After inserting the plastic pin, melt the other
side using a hot tip such as a soldering iron.
Attention: The slat controller has a left and
right side, please distinguish between the two
1.Use the screws and glue to attach
the assembled slat sets.
2.Use glue to attach the blister cover to
keep the surface clean.
Nose Gear Assembl y
Assemble/disassemble the nose gear
b y referring to the following diagrams.
Step 1
T-45 Goshawk


K�
Step2
Accessories name and specifications
A - Electronic retract
B -E-clip (02.0mm)
C -Retract pin
D -Steering tiller arm
E -Steering rod ring
F -Steering rod
G-Screw (M3x3mm)
H -Spring
I -Screw (PM2x4mm)
J -Main gear strut
K -Shock absorbing rod
L - Connecting arm 1
M -Screw (M3x5.2mm)
N -Grub screw(M4x4mm)
0 - Nose wheel axle
P -Wheel (045115mm)
Q -Washer
R - Connect ing arm 2
S -Screw (PA2x8mm)
T -Plastic retract rod
U -Plastic launching hook
V -Shock absorber supporting rod 2
W -Shock absorber supporting rod 1
x -Pin
Y -Pin
Z - Pin
AA -Pin
AB -Collar
AC -LED landing light

y
u-►
 
 y
Step 3 Step4
-7-
Screws ( PB2. 6x6mm 16pcs )
Refer to the photo on the right

Nose Gear Door Assembly
Refer to the following photos to assemble/disassemble gear doors.
Nose gear door pushrod size (front) Recommended servo pushrod installation hole

(1.29 in)
 
Nose gear door pushrod size(rear) Recommended servo push rod installation hole

(2.68 in)
1
 
a
  
Main Landing Gear Assembly
Assemble/disassemble rear landing gear
by referring to the following diagrams.
P ar t s :
A. Electric retract
B. Grub Screw (M3x5mm)
C. Grub screw (M4x4mm)
D. Screw (m3x5.2mm)
E. Screw (PA2x4mm)
F. Spring
G. Upper connecting arm
H. Shock absorbing arm
I. Landing gear strut
J. Rear wheel axle
K. Wheel (060/16mm)
L. Lower gear strut
M. Grub screw (m3x3mm)
N. Main gear door
O. Door connector
P. Pin
Q. Pin
R. E clip
S. Connecting arm
T. Screw (PA2.6x10mm)
T-45 Goshawk
 
  




 
 /

A�
Step 1
-8-
K

\

N
EN
Nose steering push rod size
 
Recommended servo pushrod installation hole

R
Step2

Main Gear Door Assembly
Refer to the following photos for assembling and disassembling main gear doors.
I
)


Servo pushrod installation hole

(1.29 in)

Integrated Circuit Module Connection Diagram
The integrated circuit module has two functions:
1. To control the LED lights, landing gear and
gear doors.
2. To connect multiple servos conveniently.



=
 


 
 
- 
 .





Connect to the integrated circuit module (E04) using the wing connection cables.


   


L 



C V 
 lo 1° , t 0
 

 
0

   
 
         i I �    
   
======="
lane E
Integrated circuit module


0
0



 0
  
  
>
   >   
� !    
EN
u-.

I: :


•••••


L 



ESC signal cable, connects
directly to the receiver. lntegrated circuit module output.
Refer to the assigned channel names and
use the connection cables to insert the
correct output to the corresponding input on
the receiver .
T-45 Goshawk
 
 
ESC
-9-
 
Receiver
A. Main gear door L
B. Main gear door R
C. Screws (PT2.3x6mm)
D. Plastic retainer
E. Spring
Rear cabin door pushrod size

Servo Introduction
 
A servo or reversed servo is defined as follows:
When the servo input signal changes from 1000 ų s to
2000 ų s, if the servo arm rotates cloc k wise, it ' s a positive
servo . I f it rotates counter cloc k wise, it ' s a reversed servo.





Note: If you choose not to use the factory servo, the
servo you choose may be larger. Refer to the
following list to ensure that the servo you chose will
fit.
    
Nose gear door servo(F)
  
Nose gear door servo(R)
  
Nose gear steering servo
  
Main gear door servo
 
Reversed
Rear cabin door servo
  
Flap
  
Flap
 
Reversed
Aileron
8  
Aileron
  
Air-brake
  
Air-brake
 
Reversed
Elevator
  
Elevator
 
Reversed
Rudder
  
Battery Installation
B attery hatch
Before proceeding, turn on the radio and ensure
that the throttle is in the lowest position. Engage
the kill switch if one is assigned
 

















-
-10-
EN
T      
      

  
    

Battery Bay
Remove the battery hatch by pulling the tab up.
Insert a fully charged battery onto the hatch deck.
Secure it by wrapping the Velcro strap around it.
A variation in battery weights will affect the CG. If
you are trying a different size of battery, recheck
your CG to ensure you have the battery in the
correct position.

Center of Gravity 
T he correct Center of Gravity is directly related to the success of the initial flights. R efer to the following
diagram to ensure you have the proper CG. O nce comfortable with the airplane, you can adjust the CG to suit
your individual taste.
T-45 Goshawk
 
   -11-
-You can adjust the CG by moving the battery
either forward or back.
- If you find that moving the battery is insufficient,
you can use some other suitable material such as
a sticky back weight strip to counter weight.

P ower S ystem Installat i on
1. Slide the motor (D) into the ducted fan cover (C).
2. Secure it with 4 cup head screws (B).
3. Put the fan (E) onto the motor shaft. ( note the flat
position of hardware when installing the fan, make
sure it aligns with the flat position of motor shaft.
 \ 
----

K�
r ; J
!i
Accessories name and specifications
 
  (PWA3x12mm 6pcs)

 (PA3x10mm 2pcs)


Motor parameters



4.Use spinner (F) to cover the fan, and use the cup head
screw (G) to secure the spinner (F).
5.Finally install the fan cowl (A) to the bottom of the
ducted fan cover (C) and secure it with 2 grub screws (H).
I
I
I
/.
HM3·3
& Note: When ESC and battery are connected, do not touch
them with your hands to avoid accidental injury. When testing
the EDF, please use a safety test stand, do not touch the unit
with your hands while testing.
E
E



e
&Note: If you need to use another motor ,
please refer to the dimensions shown below
when purchasing, to make sure that the
motor you purchased will fit properly.

 
MO037482 1550RPM/V
Unit: mm
4-M3.0
 
MI040681 1680RPM/V
T-45 Goshawk
 
  
 
 



 
 
 
 
     

  
     

l

     
   
     
-12-
E

D irection a l Control EN
After the Airplane is asse m bled, but before first flight, switch on the radio and ensure the throttle is in the lowest
position. Engage the kill switch if one is assigned. I nstall a fully charged battery and connect it to the ESC. U sing the
radio, ensure that all control surfaces m ove in the correct direction.
Ailerons
Stick Left
Elevator
Stick B ack
Rudder
Stick Left
Optional Flaps
Flaps down
T-45 Goshawk
 
  
Stick Right
Stick Forward
Stick Right
-13-

Dual Rates EN
According to our test results, the following rates proved to be a good starting point. L ow rates are good for
initial flights or less experienced pilots. H igh R ates will be more sensitive to control inputs After initial flights,
adjust the rates to suit your own style.
Ailerons
Elevator I
Air brake
P reflight P re cau tion s
T-45 Goshawk
 
  
12mm
Flaps
Rudder
1
Low Rate High Rate
Ailerons    
Flaps    
Elevator    
Rudder    
Air brake    
-14-
1. The neutral position of the elevator
should be 2 -3
mm down. (Refer to the photo on the left)
2. Do not open the slats unless you are in level flight
3. Use the recommended CG stated in the manual.

Troubleshooting Guide

A 
The airplane flies nose heavy, always needs up elevator
A 

Elevator is too sensitive, movement is not stable
Airplane will not taxi straight

Airplane will not climb


Control surfaces move in the wrong
T-45 Goshawk
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
-15-
 
 
 
 
 
 

 
 
 
 


 
 
 
 
 
 
 
 
 
 
 
 
  
 t
 
 
 
 
 

lj
  
    
!
    
  !




  




   
 
   

 




 

 


&  , 


  !

 +  m   

   {   
  
1.   
 �       
 m   § w 
    
 +n  
  
q 
 

 -16-

 
 
2 
3 
4 
 
 
 


sa1








  
  
  2
  3
  4
  
  6




  

  (7pcs)
  (7pcs)

   

  






i
 
 
 m
  (7pcs)
  (7pcs)

   

  

 


  

�

Ul, XT150�
 

 
 
 
 







  
B-17g
C -17g


 
 

   
  
  
 
  
 

�* 
  
*  



B - 




 
 





 


  
  
 
FJ307
%.: FJ307-V01

-

-18-

A-   
B    
 
  
B-17g
C -17g
D-
E -

   
 


'
A
-19-