BigPlanes Cessna 185 User manual

Cessna 185
Specification:
Length :1550 mm(61")
Wing Span :2200 mm(86.6")
Wing Area :55.3 sq. dm
5.95 sq. ft
Wing Loading :117.5 g/sq. dm
38.5 oz/sq. ft
Flying Weight :6.5 kg(14.3 lbs)
Radio :6ch&9 servos
Engine :108 2-cycle
120 4-cycle
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-cycle .120
15″X72.5 in Spinner
6
96
6
6 channel radio for aiplane is highly recommended for this model.
8
Optional parts: rubber wheel with metal hub.
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.
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)

Washer
(3x6mm)
Screw (3x25mm)
Damp nut
(3mm)
6
Blind Nut (3mm)
2
2
6
12
Washer (3x6mm)
Screw(3x25mm)
Float strut
Float strut
Float struts assembly. The side view of the Cessna 185 seaplane.
The front view of the Cessna 185 seaplane.
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79
78
16
Securely glue together. If coming off during flights, you 'll
lose control of your airplane which leads to accidents!
Make sure hinges are
mounted in the same line.
1mm
Aileron
Tailing
edge
Make sure they are in
the right position while
installing.
8
8
2
2
2
4
2
4
2
2
Clevis
Rod (2x300mm)
Retainer
TP Screw (2.3x12mm)
Wooden Block (20x20x8mm)
Servo tray(68.5x56.5x2mm)
Pin hinge(24x24mm)
Screw (3x35mm)
Washer(3x15mm)
2
Washer(3x15mm)
Lock Nut (3mm )
Clevis
Retainer
Rod (2x300mm)
Screw (2x10mm)
8
Pin hinge(24x24mm)
Install the nylon control horn and connect the linkage.
Apply instant type CA glue to aileron and pin hinge.
Keep some space about 1mm width between aileron
and trailing edge and aileron.
Assemble the aileron to main wing with instant type
CA glue.
Install the servo as the illustration below.
1
2
3
4
5
1
Accessory list for the coming installation steps.

4.2mm
Blind Nut
(3mm)
Screw
(3x25mm)
Aluminum
struts
Washer
(3x6mm)
Fuselag
1.5mm
4
Blind Nut (3mm)
1
4
4
Washer (3x6mm)
Screw(3x35mm)
Aluminum struts
12
TP Screw (2.3x12mm)
Seal cover 2
90 mm
90 mm
13 mm
13 mm
2
Float strut
Washer (3x6mm)
8
TP Screw (2.6x14mm )
6
24
Damp nut (3mm)
Screw (3x35mm) 4
Screw (3x25mm) 6
2
Float strut
2
Float strut
2
1
Float strut
Float strut
4
Blind Nut (3mm)
12
TP Screw (2.3x12mm)
Seal cover 2
316mm 485mm
Washer (3x6mm)
8
TP Screw (2.6x14mm ) 8
Centre line
Thank you for purchasing ESM'S products.
When we designed this model we have fore considered
some of our customers who loves fly it with floats.
So we have provided floats as Optional parts.
Please be kind to find the floats installation diagram below.
Assemble the floats
Float struts assembly.
Mount the seal cover.
Float struts assembly.
This step for option.
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75
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77
15
Accessory list for the coming installation steps.
1.5mm
TP Screw (2.3x12mm)
Securely glue together. If coming off during flights, you 'll
lose control of your airplane which leads to accidents!
185mm
Flap
wing tip
3mm
1mm
Tailing
edge
Make sure they are in
the right position while
installing.
Make sure hinges are
mounted in the same line.
2
Washer(3x15mm)
Washer(3x15mm) Washer
Lock Nut (3mm )
Screw (3x35mm)
8
6
2
2
2
4
2
4
2
2
Clevis
Rod (2x300mm)
Retainer
TP Screw (2.3x12mm)
Wooden Block (20x20x8mm)
Servo tray(68.5x56.5x2mm)
Pin hinge(24x24mm)
Screw (3x35mm)
Washer(3x15mm)
2
Washer(3x15mm)
Lock Nut (3mm )
Rod (2x300mm)
Clevis
Washer(3x15mm)
Washer
Lock Nut (3mm )
Screw (3x35mm)
Screw (2x10mm)
6
Pin hinge(24x24mm)
Secure the servo. Install the nylon control
horn and connect the linkage.
The position of the ailerron control horn Apply instant type CA glue to flap and pin hinge.
Keep some space about 1mm with between the tailing
edge and flap.
Assemble the flap to main wings with instant type
CA glue.
7
68
9
10
2
Accessory list for the coming installation steps.

Top view
Position for
right diagram.
ELEVATOR
Side View
25mm
25mm 97mm
20mm
15mm
15mm
AILERON
FLAP
30mm
30mm
Top view
RUDDER
Side View
FLAP
AILERON
Centre of Gravity.
Adjustment.
The front view when the kit install completion.
Adjustment. Adjustment.
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73
14
72
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75
1.5mm
3mm
TP Screw (2.3x12mm)
Wood dowel (6x50mm) 4
1
2
Hook screw
Rib template (3mm ply)
6mm
6mm
Rib template (3mm ply) 1
2
Rubber band
2
Main wing joiner (25x810mm)
184mm
wing tip
Hook 1
Rod (2x300mm)
Clevis
Washer(3x15mm)
Washer
Lock Nut (3mm )
Screw (3x35mm)
Clevis
Retainer
Rod (2x300mm)
Screw (2x10mm)
Screw (2x10mm)
Secure the flap servo. Install the nylon control
horn and connect the linkage.
Install the nylon control horn and connect the linkage.
Install the servo.
The position of the control horn for the flap. According the rib template to drill two holes on
the wings as below.
12
13
11 14
15
3
Accessory list for the coming installation steps.

Hook
1
6mm 6mm
Rib template (3mm ply) 1
B
A"
B"
A
A = A"
B = B"
1.5mm
30mm
Main joiner hole
Hook screw
Wood dowel (6x50mm)
2
2
4
Rubber band
Assembly of main wing.
Epoxy the wood dowels in the holes and set the
hook screws to appropriate position
Fetching out the servo line and air pipe.
According the rib template drill two holes in the fuselage.
Assemble the wing to fuselage and draw out the rubber
band with hook from fuselage as below.
Fasten another wing with the rubber band.
17
18
19
20
16
4
21
Wooden Block
2mm
Wooden Block(20x15x15mm) 2
2
2
Wooden Block(20x10x15mm)
Hatch release pin 2
2
Wooden Block(20x10x15mm)
Wooden Block(20x15x15mm)
20mm
20mm
140mm
140mm
2
Hatch release pin
Mount hatch cover to fuselage.
Epoxy wooden block and thinmbles
inside hatch cover.
Epoxy wooden block to appropriate position inside
fuselage and drill a hole in each of them.
Epoxy the strut cover around the wing strut in the
fuselage and take care to keep the fuselage clean.
Epoxy the strut cover around the wing strut in the
fuselage and take care to keep the wing clean.
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67 68
69
70
13
Accessory list for the coning installation steps.

Screw (3x20mm)
Screw (3x30mm)
2
Screw (3x20mm)
2
Screw (3x20mm)
Nut (3mm) 2
3.2mm
Nut (3mm) 2
Nut (3mm)
329.5mm
64mm
Cut away the surplus parts of plastic cover
carefully along the shaded line.
Glue windows to openings on fuselage.
Find out the marked position in the wing and drill a hole,
set nut in it.
Fix one side of the strut with screw.
Find out the marked position in the fuselage,drill a hole ,
set nut in it and fix the wing strut.
Cut away surplus part along the shaded area carefully.
61
62
63
64
65
12
60
3mm
Rudder
Make sure hinges are
mounted in the same line.
1mm
Tailing
edge
Make sure they are in
the right position while
installing.
3
TP Screw (3x20mm)
25mm
Tail gear supporter
Tail landing gear
Note:rudder wheel in optional.
Collar
Collar
Screw (8x6x25mm)
Nut (6mm)
Collar (3mm) 2
1
1
1
Tail landing gear(3mm)
Tail gear supporter(14x2 2x25mm)
Tail wheel (45mm)
3
TP Screw (2.6x14mm)
1
Screw (8x6x25mm)
1
Nut (6mm)
1
Stab joiner (16x260mm)
9
Pin hinge(24x24mm)
4
Wooden dowel (4x30mm)
1
Rib template (3mm ply)
TP Screw (3x20mm)
Bend tail gear wire to attach rudder.
Assemble the wheel to the tail landing gear.
Install the tail landing gear.
Apply instant type CA glue to rudder and pin hinge.
Keep some space with 1mm width between tailing edge
and rudder as below.
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23
24
25
26
5
Accessory list for the coming installation steps.

4
Screw (3x20mm)
2
PVC part
2
PVC part
1.5mm
Nut (3mm) 4
2
PVC part
2
PVC part
2
PVC part
1
PVC part
5
TP Screw (2.3x8mm)
Ply (15x15x3mm) 5
Epoxy plies inside the fuselage under the cowing and
mount the cowing with TP screw as illustration.
5
TP Screw (2.3x8mm) Ply (15x15x3mm) 5
Steel wire
Aluminum tube
Clevis
Lock Nut (3mm )
Washer(3x15mm)
Screw (3x65mm)
3mm
120mm
15mm
2mm
Throttle servo Elevator servo
Elevator servo
Rudder servo
Mounting of the receiver and the battery.
Trim the cowling for engine and muffler.
Assemble the cowling .
Connect the linkage rod to the horn.
The sketch map of the servos install completion
in the fuselage.
55
56
57
58
59
11
Accessory list for the coming installation steps.
Elevator
Make sure hinges are
mounted in the same line.
1mm
Tailing
edge
Make sure they are in
the right position while
installing.
Securely glue together. If coming off during flights, you 'll
lose control of your airplane which leads to accidents!
4mm
4mm
1
Rib template (3mm ply)
4
Wood dowel (4x30mm)
6
Pin hinge(24x24mm)
Assemble the rudder to the vertical tail with CA glue.
Apply instant type CA glue to elevator and pin hinge.
Keep some space with 1mm width between tailing edge
and elevator as below.
Assemble the elevator to the horizontal tail with CA glue.
Drill two holes at the stabilizer root base on rib template
and epexy the metal dowel in them.
A ccording to thr rib template drill holes to the tail of
fuselage as below.
28
29
30
31
32
6
27

Washer (6x13mm)
Washer (6x13mm)
Nut (6mm)
Screw (6x45mm)
Nut (6mm)
5.2mm
Blind Nut 3
Screw(4x25mm)
3
1
Blind Nut (4mm)
Main landing gear
3
1
Blind Nut (4mm)
Main landing gear
Washer (6x13mm) 6
3
Screw (4x25mm)
2
Screw (6x45mm)
2
Wheel (90 mm)
4
Nut (6mm )
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 flihts,
you'll lose control of your airplane which leads
to accidents!
C"
D"
C
D
C = C"
D = D"
1
Stab joiner (16x260mm)
Install the main landing gear.
Assemble the wheel to the landing gear.
The sketch map when the landing gear install completion.
Epoxy the horizontal tail to the fuselage and take care
to keep it clean.
Assemble the horizontal tail, Vertical tail separately.
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33 35
36
37
7
Accessory list for the coming installation steps.
18mm
3mm
Washer(3x15mm)
Washer
Screw (3x35mm)
2
2
Washer(3x15mm)
Lock Nut (3mm )
1
Screw (3x65mm)
16mm
2
2
2
Clevis
Copper joiner
Aluminum tube(3x6mm)
2
2
Screw (2x10mm)
Nut (2mm )
2
Washer(2x5mm)
Steel wire
Copper joiner
Aluminum tube Lock Nut (2mm )
Screw (2x10mm)
Ball joint
Washer(2x5mm)
Rod (2x300mm)
Clevis
Washer(3x15mm)
Washer
Lock Nut (3mm )
Screw (3x35mm)
Screw (2x10mm)
Elevator.Connect the linkage rod to the horn.
Install the rudder servo.
Mount the rudder servo in the fuselage.
The position of the rudder control horn.
Install the elevator servos in the fuselage.
The position of the elevator control horn.
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51
52
53
54
10
49

Washer (4x8mm)
Screw (4x25mm)
Nut (4mm)
4mm
Set Screw (3x4mm)
Set Screw (2mm)
Rod (2x400mm)
Set Screw (2mm)
Washer (2mm)
Linkage Stopper
1
1
1
1
1
4
4
Washer (4x8mm)
4
Rod (2x650mm)
Blind Nut (4mm)
Screw (4x25mm)
Set Screw (3x4mm)
Washer (4x8mm)
Washer (4x8mm)
Screw (4x35mm)
Spring Washer (4mm)
5.2mm
Blind Nut
160 mm
In case of 2-cycle & 4-cycle engine.
4
Blind Nut (4mm)
TP Screw (2.3x8mm) 5
1
Engine mount (68x105mm)
Linkage Stopper
4
4
12
4
Washer(4x8mm)
Screw (4x35mm)
Spring Washer (4mm)
Nut (4mm)
2
4
Screw (4x25mm)
2
Plastic tube (2x650mm)
4
4
Copper joiner
Aluminum tube(3x6mm)
Clevis 2
Fuel tank (550cc) 1
4
Copper joiner
Fiberglass pushrod(3x900mm)
2
2
Steel wire (0.5x1500mm)
6
Ply(20x16x2mm)
2
4
6
Clevis
Washer(3x15mm)
2
Washer(3x15mm)
Lock Nut (3mm )
1
Screw (3x65mm)
4
Clevis
4
Screw (2x10mm)
4
Nut (2mm )
4
Washer(2x5mm)
Assemble the engine.
Assemble the throttle linkage.
Drill four holes at the diameters as shown
for engine mount.
The front view when the engine install completion.
The side view when the engine install completion.
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40
41
42
8
Accessory list for the coming installation steps.
Fuel tank (550cc) 1
Fuel supply line
Fuel spray line
Air pressure line
Linkage Stopper
Washer (2mm)
Washer (2mm)
Nut (2mm)
Set screw (3x4mm)
Washer ( 2mm )
Set screw (3x4mm)
1
1
1
1
Rod (2x300mm)
Lock Nut (2mm )
Screw (2x10mm)
Ball joint
Washer(2x5mm)
2
2
Clevis
Aluminum tube(3x6mm)
2
2
Screw (2x10mm)
Nut (2mm )
2
Copper joiner
2
Washer(2x5mm)
Mount the fuel tank into the fuselage.
Install the servo and switch in the fuselage.
Assembly of the fuel tank.
Assemble the elevator servos.
Assemble the throttle linkage to the engine.
Assemble the servo and switch .
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45
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48
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43