J-Power Grob 120TP User instructions

Assembly and Operating Manual
Grob 120TP
Specification:
*Length:51‐2/5"(1305mm)
*Wingspan:66‐9/10"(1700mm)

*Flyingweight:2800g(98-4/5oz.)

Dear customer,
Congratulations on your choice of a
factory-assembled model aircraft from the
J-POWER LIGHT PLANE RANGE and thank you
for placing your trust in us.
The model can very quickly be completed ready to
fly. Please read right through these instructions
and the separate information sheets before
attempting to assemble and fly the model, as this
will make it much easier to complete the tasks
required.
All directions, such as “right-hand”, are as seen
from the tail of the model, looking forward.
Notes on the power system
Abrushless outrunner motor, propeller and spinner
are factory-installed.
The motor is connected to the speed controller,
ready to use, and the controller is correctly set up
at the factory.
To complete the power system all you have to do
is connect the LiPo flight battery.
The radio control system
For this model you require a radio control system
with at least four channels. We particularly
recommend 2.4 GHz systems.
The receiving system is powered by the speed
controller’s integral BEC system.
Before you check the model’s working systems,
set the control surfaces to neutral from the
transmitter (transmitter sticks and trims central).
Before operating the model always move the
throttle stick to the “motor stopped” position before
switching the transmitter on. Only then connect the
flight battery.
To switch off, first disconnect the flight pack from
the speed controller, and only then switch the
transmitter off.
Glued joints, suitable adhesives
Foam safe epoxy is recommended and available
from most reputable model retail shops.
Trial-fit all parts “dry” before applying glue.
Follow the recommended curing time suggested
by the glue manufacturer. Allow the glue to fully
cure (harden) to the point where the joint can be
placed under stress.
Kit contents
Fuselage, complete with motor, speed controller
and servo.
Integral wing panels with L.H / R.H. ailerons and
servos
Tailplane and elevator
Fin
Factory-fitted propeller and spinner
2 X Aileron pushrod, Two Z-bend
1 X Elevator pushrod, one Z-bend.
1 X Rudder pushrod one Z-bend
2 X Landing flaps pushrod Two Z-bend
5 X Y-lead
6 X Control surface horn
1 X 4S1P LiPo battery，3600 mAh, 25C

AssemblyandOperatingManual Grob120TP
3
Figs. 1
-Picture shows the elevator surface ,control horns
and hinges .Assemble the control horns and
hinges to the elevator .
Figs. 2
- Cut up the elevator, drill hole in the location of
install hinges.
Fig. 3
-Photo shows the hinges assembled on the
elevator surface .
Fig. 4
- Photo shows the control horns assembled in the
elevator.
2
1
3 4

AssemblyandOperatingManual Grob120TP
4
Fig. 5
-Assemble the elevator to fuselage ,and screw up it .
Fig. 6
-Cut up the rudder , drill hole in the location of install
hinges
Fig. 7
-Assemble the hinges to the rudder surface
Fig. 8
- Connect the rudder lighting wire to the fuselage
and assemble the rudder to fuselage . .
7
6
8
5

AssemblyandOperatingManual Grob120TP
5
Fig. 9
-Fixed the vertical with screw .
Fig. 10
-Assemble the vertical to the fuselage .
Figs. 11
-Heat the shrink tube .to avoid the collet chuck
loosen
Figs. 12
- Cut up the rudder , drill hole in the location of install
hinges
10
11 12
9

AssemblyandOperatingManual Grob120TP
6
Figs. 13
-Assemble the hinges to the aileron .
Figs. 14
-Photo shows the hinges have settled in the aileron .
Figs. 15
-Photo shows the main wing support wood board..
Figs. 16
-Apply glue to the board .Assemble the board to the
main wings.
14
13
15 16

AssemblyandOperatingManual Grob120TP
7
Figs. 17
-Photo shows the main wing support bar have
installed in the wings .
-
Figs. 18
-Assemble the control rods to the left and right main
wings.
Figs. 19
- Assemble the control rods to the left and right
aileron
Figs. 20
-Assemble the main wings to the fuselage .and lock
it with screws .
1817
19 20

AssemblyandOperatingManual Grob120TP
8
Figs. 21
- Assemble the propellers and spinner cover with
screws .
Figs. 22
-Photo shows the propellers connected on the
cover .
Figs. 23
-Assemble the propellers on the motor .
Figs. 24
-Photo shows the finished view.
22
21
23 24

AssemblyandOperatingManual Grob120TP
9
Figs. 25
-Assemble the spinner to the spinner cover .lock it
with screw .
Figs. 25
-Photo shows the accessories
Figs. 27
-Assemble accessories A,C and G to the Vertical fin .
Figs. 28
-Assemble accessories D,H and E to the fuselage .
26
27
28
25

AssemblyandOperatingManual Grob120TP
10
Figs. 29
-Assemble the accessory B to the nosing of the
plane .
Figs. 30
-Assemble the accessory F to the main wing .
Figs. 31
-Assemble the accessory I to the main wing .
Figs. 32
- Connect the channel wire leads to the receiver .and
located the battery.
30
31 32
29