Hobby King SBACH 55" User manual

SBACH 55”
Specification:
Length: 1397mm(55〞)
Wing span: 1397mm(55〞)
Wing area: 37sq.dm (4sq.ft)
Wing loading: 59.5g/sq.dm(19.5oz/sq.ft)
Flying weight: 2.2kg(4.8lbs)
Radio: 6ch & 5servos
Engine: 4-cycle 52-70
2-cycle 40-52
Motors: 4250 510KV
ESC: 60A
Battery: 6S 2200MAH 20C
Propeller: 14*7
SAFETY PRECAUTIONS
INSTRUCTION MANUAL
First-time builders should seek advice from people having building
experience.If misused or abused,it can cause serious bodily injury
and damage to property.
Fly only in open areas and preferably at a dedicated R/C flying site.
We suggest having a qualified instructor carefully inspect your
airplane before its first flight.Please carefully read and follow all
instructions included with this airplane,your radio control system
and any other components purchased separately.
(The people under 18 years old is forbidden from flying this model)
This R/C airplane is not a toy!

4
(with 5 servos),
4
4
4 channel radio for aiplane is highly recommended for this model.
Warning
Remove the covering with proper
pressure to cut through only the covering itself.Otherwise,
cutting down into the balsa structure may weaken the
model part and cause accident.
The pre-covered film on ARF kits may wrinkle due to
variations of temperature.Smooth out as explained right.
Li-Pox4 (2200mAh)
Pre-cover the covering with clean cloth!
Start at low setting. Increase the setting if
necessary.If it is too high,you may damage
the film.
Iow setting
with cover(cloth)
Motor controller:60A
Motor (KV): 600rpm/v
Engine dimension: 42x50mm
Apply epoxy glue.
4-cycle 52-70.
We strongly recommend you use the thread lock for all the screws when you build your model.
14 " x7
2 in Spinner
The side view when the install completion.
105mm
105mm
Centre of the Gravity.
Top view
Position for
right diagram.
ELEVATOR
50mm
50mm
Adjustment of the elevator,be sure it can work perfectly.
80mm
80mm
Top view
RUDDER
Side View
Adjustment of the rudder, be sure it can work perfectly.
58
56
55
13
57

Fuselage
Aileron Aileron
Stabilizer
Elevaror
cowling
Top cover PVC Wheel pants
Rudder
wing
SBACH 55” packing list
1
Assemble the undercarriage to the fuselage with screws. Drill holes to appropriate position in the cowling and assemble
the cowling to the fuselage with TP screws as illustration.
2mm
4
TP Screw (2.3x12mm)
40mm
40mm
AILERON
Adjustment of the aileron and flap,be sure they can work
perfectly.
Trim the PVC parts along the shaded line.
1
Double-sided adhesive
4
Screw (3x15mm)
Washer (3x6mm) 4
Fix the fuselage top cover to the fuselage with screws as
illustration.
2
Screw (3x16mm)
Washer (3x6mm) 2
AILERON AILERON
The specification of the cowling.
177mm
154mm
53mm
52
53
54
12
49
50
51

1
Main landing gear
Motor mount box
2
Wheel(50mm)
1
Wheel(30mm)
20
7
4
6
Screw (3x16mm)
4
8
8
Screw (2x10mm)
8
4
22
8
12
6
2
4
Lock Nut (4mm )
Screw (3x15mm)
Screw (4x20mm)
Screw (4x35mm)
2
Screw (4x40mm)
Blind Nut(4mm)
2
Blind Nut(3mm)
TP Screw (2.3x12mm)
Collar (2mm)
Nut(4mm )
Nut(2mm )
Washer(2x6mm)
Washer(3x6mm)
Washer(4x8mm)
4
Washer(4x12mm)
Spring Washer(4mm)
Package1
3
Rod (2x300mm)
2
2
Engine mout (52x86mm)
1
1
Double-sided adhesive(410mm)
Cable tie 2
Steelwire (0.5x1200mm)
4
Copper joiner
4
Aluminum tube(3x6mm)
SBACH 55” packing list
1
Taillanding gear (2mm)
1
Main wing joiner(16x534mm)
5
Control horn(2mm)
1
Aluminum plate
Linkage Stopper
7
Clevis(2mm)
1
2
Plastic tube (2x400mm)
Fuel tank (260cc) 1
1
Rod (2x300mm)
Package4
Package5
Package2
Package3
2
Assemble the motor as below.
Washer (4x8mm)
Screw (4x20mm)
Li-Pox4 (2000mAh)
Assemble the Li-Po battery to appropriate position in
the fuselage.
2
1
Blind Nut (3mm)
Main landing gear
Washer (4x12mm)
Washer (3x6mm) 8
6
Screw (3x15mm)
Screw (4x40mm)
Wheel (50mm)
2
4
4
2
Nut(4mm)
LockNut (4mm)
2
2
Accessory list for the coming installation steps.
Screw (3x16mm)
4
TP Screw (2.3x12mm)
Double-sided adhesive
PVC 2
1
Washer (4x12mm)
Washer (3x6mm)
Washer (4x12mm)
Nut (4mm)
Screw (4x40mm)
Screw (3X16mm)
Lock Nut (4mm)
Assemble the wheels and wheel pants to the landing
gears with screws.
4.2mm
Blind Nut
Drill holes to appropriate position in the wheel pants,
fixing the wheel pants to the landing gear with screws.
Adjust to appropriate distance based
on the hole in the aluminum plate
of the landing gear
2
2
4
2
Washer (4x12mm)
Screw (4x40mm)
Nut 4mm)
2
Lock Nut (4mm)
The sketch map when the wheels and wheel pants install
completely.
Screw (3x16mm)
appropriate distance
2
Collar (4mm)
46
47
48
11
44
45

8
2
2
Rod (2x300mm)
TP Screw (2.3x12mm)
Collar (2mm)
2
2
2
2
2
Screw (2x10mm)
Nut (2mm )
Clevis
Control horn
Washer(2x6mm)
8
Pin hinge(24x24mm)
8
Pin hinge(24x24mm)
Apply instant type CA glue to aileron and pin hinge.
Make sure hinges are
mounted in the same line.
1mm
Aileron
Trailing
edge
Make sure they are in
the right position while
installing.
Keep some space about 1mm width between aileron and
trailing edge.
Assemble the aileron to main wing with instant type
CA glue.
Securely glue together. If coming off during flights, you 'll
lose control of your airplane which leads to accidents!
Install the control horn and connect the linkage.
TP Screw (2.3x12mm)
Apply instant type AB glue to the control horn and the slots in
the aileron, insert the control horn to the slots as illustration.
Nut
Washer 2x6mm
Screw 2x10mm
Collar
Accessory list for the coming installation steps.
1
2
3
4
5
3
Mount the receiver and the battery to appropriate position
in the fuselage.
Assemble the servo of the throttle in the fuselage.
The consumers can also use motors for this plane.please find the
assemble steps below.The front view when the motor install completion.
motor dimension O 42x50mm
The side view when the motor install completion.
108mm
Base on the 31st step,drill four holes in appropriate
position.
4mm
Fix the motor mount box to the fuselage with screws.
Washer (4x8mm)
Screw (4x20mm)
39
38
43
10
40
42
41

Accessory list for the coming installation steps.
Accessory list for the coming installation steps.
1
Main wing joiner (16x534mm)
2
Washer (4x8mm)
2
Screw (4x35mm)
Make sure to glue securely.
If not properly glued, a failure in flight may occur.
Temporarily fasten down the main wing and
check its correct position.
Securely glue together.If coming off during flights,
you'll lose control of your airplane which leads
to accidents!
The standard sketch map when the kit install completion.
A=A'
B=B'
Assemble the wing to the fuselage and insert the other side
main wing to the fuselage via main wing joiner as illustration.
Insert the main wing joiner to one side of the main wing.
1
Main wing joiner (16x534mm)
Main wing joiner (16x534mm)
2
Washer (4x8mm)
2
Screw (4x35mm)
Fix the wing to fuselage with screws throught the holes
applied in the wings and fuselage.
1
1
Rod (2x300mm)
6
Collar (2mm)
1
1
Nut (2mm )
Screw (2x16mm) 1
1
Clevis
4
TP Screw (2.3x12mm)
Control horn
Screw
Spring Washer
Pin hinge(24x24mm)
AA ’
B '
B
8
9
4
7
6
Set Screw (3x4mm)
Set Screw (2mm)
Rod (2x200mm)
Set Screw (2mm)
Washer (2mm)
Linkage Stopper
1
1
1
1
1
4
4
Washer (4x8mm)
4
Rod (2x300mm)
Blind Nut (5mm)
Screw (4x25mm)
Set Screw (3x4mm)
Assemble the throttle linkage.
Linkage Stopper
Washer (2mm)
Washer (2mm)
Nut (2mm)
Set screw (3x4mm)
Washer (
2mm )
Set screw (3x4mm)
1
1
1
1
Install the servo of the throttle.
Washer (4x8mm)
Washer (4x8mm)
Screw (4x35mm)
Screw (4x20mm)
Nut (4mm)
Spring Washer (4mm)
4mm
Washer (4x8mm)
Assemble the engine.
The sketch map when the engine install completion.
Fuel supply line
Fuel spray line
Air pressure line
Assembly of the fuel tank.
Fix the fuel tank to appropriate position in the fuselage
with cable tie.
cable tie 2
cable tie
cable tie
33
34 37
35
9
36
32

Nut
Washer 2x6mm
Screw 2x10mm
Collar
Install the control horn and connect the linkage.
Epoxy the control horn to the slots in the elevator,assemble the
elevator servo to the fuselage as illustration.
Make sure hinges are
mounted in the same line.
6
Pin hinge(24x24mm)
Glue the pinned hings to appropriate slots.
1mm
Trailing
edge
Make sure they are in
the right position while
installing.
Elevator
Keep about 1mm width space between the tailing edge
and elevator.
Insert carefully the elevator through the fuselage.
Trim the covering carefully to appropriats position in the stabilizer
and insert it into fuselage space and cheek the alignment.
4
TP Screw (2.3x12mm)
15
14
13
5
12
11
10
The sketch map of how the steel wires works for the
rudder.
Make sure to glue securely.
If not properly glued, a failure in flight may occur.
Temporarily fasten down the main wing and
check its correct position.
Securely glue together.If coming off during flights,
you'll lose control of your airplane which leads
to accidents!
The sketch map should be when the rudder and stabilizer
install completion.
A = A ’
B = B ’
Accessory list for the coming installation steps.
The front view once the engine install completion.
The side view once the engine install completion.
Drill four holes at the diameters as shown for engine
mount.
4
Blind Nut (4mm)
113mm
4
Blind Nut (4mm)
1
Engine mount (52x86mm)
Linkage Stopper
4
4
20
4
Washer(4x8mm)
Screw (4x35mm)
Spring Washer (4mm)
Nut (4mm)
2
12
Screw (4x20mm)
2
Plastic tube (2x400mm)
1
Rod (2x300mm)
Fuel tank (260cc) 1
Motor mount box
1
Cable tie 2
AA ’
B
B ’
5.2mm
Blind Nut
28
29
27
30
31
8

Accessory list for the coming installation steps.
Install the tail landing gear.
Collar
Collar
Collar
aluminium plate
According to the illustration below bend the tail landing
gear wire and cut off the surplus part.
30mm
25mm
4
Washer(2x6mm)
Screw (2x10mm) 4
Collar (2mm)
3
1
1
Tail landing gear 2mm
Tail wheel (30mm)
Aluminium plate
4
3
Clevis
4
Copper joiner
4
Aluminum tube
2
2
1
Steel wire (0.5x1200mm)
TP Screw (2.3x12mm)
Control horn
3
4
Nut (2mm )
30mm
25mm
2mm
Trim a slot and drill a hole in the rudder for helping
assemble the tail landing to it.
Glue the pin hinges to the rudder and Epoxy the landing
gear to the rudder as illustration.
Make sure hinges are
mounted in the same line.
1mm
Trailing
edge
Make sure they are in
the right position while
installing.
Rudder
Keep some space about 1mm width between the rudder
and tail edge.
Pin hinge(24x24mm)
17
16
18
6
20
19
Glue the rudder to the vertical fin.
Assemble the tail landing gear to tail fuselage as below.
TP Screw (2.3x12mm)
Securely glue together. If coming off during flights, you 'll
lose control of your airplane which leads to accidents!
Epoxy the control horns to the slots in the rudder.
2
2
Clevis
Copper joiner
2
2
Screw (2x10mm)
Nut (2mm )
2
Washer(2x6mm)
Steel wire
Copper joiner
Lock Nut (2mm )
Screw (2x10mm)
Clevis
Washer(2x5mm)
Install the servo of the rudder.
Nut 2mm
Washer(2x5mm)
Screw (2x16mm)
Steel wire
Copper joiner
Aluminum tube
Clevis
Lock the linkage to the control horn with screws and nuts
as below.
Assemble the servo of the rudder in the fuselage and
connect the sero and the rudder via steel wires.
In order to let the control horn be epoxied to the rudder
completely,please adjust the length of the root for the
control horn before glue them into the rudder.
22
21
7
24
23 26
25