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!

(with 5 servos),

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.

2 in Spinner

The side view when the install completion.

105mm

Centre of the Gravity.

Top view

Position for

right diagram.

ELEVATOR

50mm

Adjustment of the elevator,be sure it can work perfectly.

80mm

Top view

RUDDER

Side View

Adjustment of the rudder, be sure it can work perfectly.

Fuselage

Aileron Aileron

Stabilizer

Elevaror

cowling

Top cover

PVC Wheel pants

Rudder

wing

SBACH 55” packing list

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

TP Screw (2.3x12mm)

40mm

AILERON

Adjustment of the aileron and flap,be sure they can work

perfectly.

Trim the PVC parts along the shaded line.

Double-sided adhesive

Screw (3x15mm)

Washer (3x6mm) 4

Fix the fuselage top cover to the fuselage with screws as

illustration.

Screw (3x16mm)

Washer (3x6mm) 2

AILERON AILERON

The specification of the cowling.

177mm

154mm

53mm

Main landing gear

Motor mount box

Wheel(50mm)

Wheel(30mm)

Screw (3x16mm)

Screw (2x10mm)

Lock Nut (4mm )

Screw (3x15mm)

Screw (4x20mm)

Screw (4x35mm)

Screw (4x40mm)

Blind Nut(4mm)

Blind Nut(3mm)

TP Screw (2.3x12mm)

Collar (2mm)

Nut(4mm )

Nut(2mm )

Washer(2x6mm)

Washer(3x6mm)

Washer(4x8mm)

Washer(4x12mm)

Spring Washer(4mm)

Package1

Rod (2x300mm)

Engine mout (52x86mm)

Double-sided adhesive(410mm)

Cable tie 2

Steelwire

(0.5x1200mm)

Copper joiner

Aluminum tube(3x6mm)

SBACH 55” packing list

Taillanding gear (2mm)

Main wing joiner(16x534mm)

Control horn(2mm)

Aluminum plate

Linkage Stopper

Clevis(2mm)

Plastic tube (2x400mm)

Fuel tank (260cc) 1

Rod (2x300mm)

Package4

Package5

Package2

Package3

Assemble the motor as below.

Washer (4x8mm)

Screw (4x20mm)

Li-Pox4 (2000mAh)

Assemble the Li-Po battery to appropriate position in

the fuselage.

Blind Nut (3mm)

Main landing gear

Washer (4x12mm)

Washer (3x6mm) 8

Screw (3x15mm)

Screw (4x40mm)

Wheel (50mm)

Nut(4mm)

LockNut (4mm)

Accessory list for the coming installation steps.

Screw (3x16mm)

TP Screw (2.3x12mm)

Double-sided adhesive

PVC 2

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

Washer (4x12mm)

Screw (4x40mm)

Nut 4mm)

Lock Nut (4mm)

The sketch map when the wheels and wheel pants install

completely.

Screw (3x16mm)

appropriate distance

Collar (4mm)

Rod (2x300mm)

TP Screw (2.3x12mm)

Collar (2mm)

Screw (2x10mm)

Nut (2mm )

Clevis

Control horn

Washer(2x6mm)

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.

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)

Accessory list for the coming installation steps.

Main wing joiner (16x534mm)

Washer (4x8mm)

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.

Main wing joiner (16x534mm)

Washer (4x8mm)

Screw (4x35mm)

Fix the wing to fuselage with screws throught the holes

applied in the wings and fuselage.

Rod (2x300mm)

Collar (2mm)

Nut (2mm )

Screw (2x16mm) 1

Clevis

TP Screw (2.3x12mm)

Control horn

Screw

Spring Washer

Pin hinge(24x24mm)

AA ’

B '

Set Screw (3x4mm)

Set Screw (2mm)

Rod (2x200mm)

Set Screw (2mm)

Washer (2mm)

Linkage Stopper

Washer (4x8mm)

Rod (2x300mm)

Blind Nut (5mm)

Screw (4x25mm)

Set Screw (3x4mm)

Assemble the throttle linkage.

Linkage Stopper

Washer (2mm)

Nut (2mm)

Set screw (3x4mm)

Washer (

2mm

)

Set screw (3x4mm)

Install the servo of the throttle.

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

34 37

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.

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.

TP Screw (2.3x12mm)

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.

Blind Nut (4mm)

113mm

Blind Nut (4mm)

Engine mount (52x86mm)

Linkage Stopper

Washer(4x8mm)

Screw (4x35mm)

Spring Washer (4mm)

Nut (4mm)

Screw (4x20mm)

Plastic tube (2x400mm)

Rod (2x300mm)

Fuel tank (260cc) 1

Motor mount box

Cable tie 2

AA ’

B ’

5.2mm

Blind Nut

Accessory list for the coming installation steps.

Install the tail landing gear.

Collar

aluminium plate

According to the illustration below bend the tail landing

gear wire and cut off the surplus part.

30mm

25mm

Washer(2x6mm)

Screw (2x10mm) 4

Collar (2mm)

Tail landing gear 2mm

Tail wheel (30mm)

Aluminium plate

Clevis

Copper joiner

Aluminum tube

Steel wire (0.5x1200mm)

TP Screw (2.3x12mm)

Control horn

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)

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.

Clevis

Copper joiner

Screw (2x10mm)

Nut (2mm )

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.

23 26

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