Electric Beaver
Specification:
Length :958 mm(37.7")
Wing Span :1500 mm(59.1")
Wing Area :23.5 sq. dm
2.53 sq. ft
wing loading :89.4 g/sq. dm
29.3 oz/sq. ft
flying weight :2.1kg(4.62 lbs)
Radio :4ch& 4servos
Motor(KV)
Battery :Li-PoX4 (2000mAh)
Motor controller :45A
:600rpm/v
42x50mm
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"X7
Spinner nut
6
(with 9 servos),
6
6
6 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.
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)
53mm
Centre of Gravity.
The full model side view when install completion.
The side view when the model assemble completely.
66
65
13
64
Top view
Position for
right diagram.
ELEVATOR
Side View
25mm
25mm
30mm
30mm
Top view
RUDDER
Side View
15mm
15mm
AILERON
AILERON
Side view
Adjustment.
Epoxy the wooden block to the fuselage
under the top hatch.
Adjustment.
Adjustment.
Epoxy the wooden block to relevant position
in the fuselage.
Assemble the top hatch to the fuselage.
62
59
60
61
58
63
12
1mm
Aileron
Tailing
edge
Make sure they are in
the right position while
installing.
Make sure hinges are
mounted in the same line.
8
Pin hinge(24x24mm)
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)
Securely glue together. If coming off during flights, you 'll
lose control of your airplane which leads to accidents!
Install the servo as the illustration below
Install the nylon control horn and connect the linkage.
Apply instant type CA glue to aileron and pin hinges.
Keep some space about 1mm width between
aileron and trailing edge.
Assemble the aileron to main wing with instant type CA glue. Be careful
to ensure the moving parts of the hinges are able to move freely.
1
2
3
4
5
1
Accessory list for the coming installation steps.
2
2
Screw (3x12mm)
Washer (3x6mm)
Linkage Stopper
2
Linkage Stopper
Washer (2mm)
Nut (2mm)
Set screw (3x4mm)
2
2
2
2
Washer (2mm)
Set screw (3x4mm)
Washer (2mm)
1.5mm
TP Screw(2.3x8mm)
Rudder servo
Elevator servo
4
Magnet (20x10x3mm)
3
Wooden block
1
Wooden block
4
Magnet (20x10x3mm)
3
Wooden block
1
Wooden block
8
TP Screw (2.3x8mm)
Ply (15x15x3mm)
8
The servos installation finished sketch map.
Assemble the other side of the wing strut to the
fuselage with screw.
Assemble the tail cover to fuselage with TP screw.
Install the servo as illustration below.
Epoxy the magnet to the wooden block as bslow.
11
54
55
53
56
57
Accessory list for the coming installation steps.
165mm
Rod (2x300mm)
Clevis
Washer(3x15mm)
Washer
Lock Nut (3mm )
Screw (3x35mm)
TP Screw (2.3x12mm)
3mm
1.5mm
Secure the servo.Install the nylon control horn and
connect the linkage.
The position of the control horn in the aileron.
The standard sketch map of the wings installation finished.
6
7
8
9
10
2
Accessory list for the coming installation steps.
Wood dowel (6x50mm)
4
1
2
Hook screw
Rib template (2mm ply)
2
Rubber band
1
Main wing joiner (12x540mm)
Hook
1
B
A"
B"
A
A = A"
B = B"
6mm
6mm
1
Rib template (2mm ply)
Set the rib templates to the appropriate position
and drill holes.
1.5mm
Hook screw
Wood dowel (6x50mm)
2
2
4
Rubber band
Epoxy the wood dowels into the holes and set the hook screw with
rubber band to the appropriate position into the main wing as below.
MarkedMarked
Marked
4.2mm
Blind Nut
2
Blind Nut (3mm)
Ply (25x25x6mm)
2
Velcro
1
Velcro
Velcro
2
2
Screw (3x12mm)
Washer (3x6mm)
Mounting of the receiver and the battery.
Epoxy the PVC parts to the landing gear as below.
Epoxy velcro to the fuselage and PVC part as below.
Fix the PVC part on the fuselage.
According to the marked point on the wing ,fix one side
of the wing strut with screw as the illustration below.
Epoxy a ply to appropriate position inside the fuselage and set a
blind nut in it for assembling the other side of wing strut.
48
49
51
10
47
50
52
6
1
Pin hinge(24x24mm)
U-style wire(100x25mm)
Make sure hinges are
mounted in the same line.
6
Pin hinge(24x24mm)
Elveator
1mm
Tailing
edge
Make sure they are in
the right position while
installing.
1
Rib template (3mm ply)
1
Rib template (2mm ply)
6mm
6mm
Set the rib templates to the appropriate position on the
fuselage and drill holes as below.
Hook
1
Fix oneside of the main wing to the fuselage and take out
the rubber bands with tool.
Fix the other side of the wing to the fuselage steadily.
Accessory list for the coming installation steps.
Apply instant type CA glue to elevator and pin hinge.
Keep some space with about 1mm width between
tailing edge and elevator.
11
12
13
15
3
14
Sticker
Sticker
50mm
Frame (3mm)
1
1.5mm
TP Screw(3x20mm)
4
TP Screw(3x20mm)
Washer (3x6mm)
4
5mm
Epoxy the wheel pants to the main landing gear
steadily.
Cut away the surplus parts of canopy carefully along
the shade line.
Epoxy the canopy to the fuselage.
Cut away the surplus parts of canopy carefully along
the shade line.
Epoxy the frame to appropriate position in the cowl.
Stick the sticker to appropriate position in the
windshield and glue them to fuselage as below.
42
43
46
9
41
45
44
2mm
According to the 19th step
Make sure hinges are
mounted in the same line.
2.5mm
20mm
43mm
43mm
3
Pin hinge(2.5x48mm)
Drill holes to appropriate position in the rudder
and epoxy the pin hinge to them.
Trim a hole and slot for
the bend wire.
1
U-style wire(2mm)
2mm
Collar (2mm)
2
1
1
Tail landing gear(2mm)
Tail wheel (25mm)
4
TP Screw (2x20mm)
1
Wooden Block
(60x20x3mm)
1
3
Tail gear supporter
Tail gear supporter
Tail landing gear
Note:rudder wheel in optional.
Collar
Collar
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"
Pin hinge(2.5x48mm)
Securely glue together. If coming off during flights, you 'll
lose control of your airplane which leads to accidents!
1
3
TP Screw (2x15mm)
3
Washer(2x5mm)
aluminium plate (50X2mm)
Collar
Collar
Tail landing gear(2mm)
aluminium plate (50X2mm)
25mm
25mm
Assemble the tail landing gear as below.
Assemble the U-style wire to stabilizer as below.
Assemble the elevator to the stabilizer with CA glue and
AB glue.
The horizontal installation finished standard sketch map.
Assemble the tail wheel as below.
17
18
16
20
4
Accessory list for the coming installation steps.
19
According to the 20th step
1
Ply
(60x20x3mm)
Epoxy ply to the inside of the fuselage where the tail
wheel will be and drill holes in appropriate position.
TP Screw (2x15mm)
1.5mm
2mm
2mm
1mm
Rudder
Tailing
edge
Cut away the rubber tube when
the epoxy glue dried.
Make sure they are in
the right position while
installing.
2.5mm
Notice the hole position for
thr bend wire.
2mm
3
TP Screw (2x15mm)
3
Washer(2x5mm)
1
Blind Nut (4mm)
Main landing gear
Washer (4x13mm)
6
Screw (4x25mm)
2
Wheel (65 mm)
2
Nut (4mm )
2
Self-tap Nut (4mm )
Washer(4x8mm)
3
3
3
Screw (4x40mm)
2
Accessory list for the coming installation steps.
The rudder installation finished standard sketch map.
Keep some space with 1mm width between the
tailing edge and rudder.
Assemble the tail wheel on the fuselage with TP screw.
Epoxy the rudder to the vertical tail edge.
22
23
24
21
25
5
9mm
85mm
pushrod(3x500mm)
1
10mm
Rod (1.8x800mm)
Clevis
Washer(3x15mm)
Washer
Lock Nut (3mm )
Screw (3x35mm)
Screw (2x10mm)
Ply (15x15x3mm)
8
2
sticker
2
Pvc part
2
Pvc part
2
Pvc part
2
Pvc part
4
Screw (3x20mm)
4
TP Screw (3x20mm)
Pvc part
1
2
Magnet (20x10x3mm)
2
Wooden block
Metal wire (2x20mm)
3
2
Blind Nut (3mm)
Washer (3x6mm)
4
Pvc part
2
Frame (3mm)
1
Velcro
1
3mm
Rod (1.8x700mm)
Clevis
Washer(3x15mm)
Washer
Lock Nut (3mm )
Screw (3x35mm)
20mm
Rod (1.8x700mm)
1
Rod (1.8x700mm)
Ply (25x25x6mm)
2
Drill holes to appropriate position in the fuselage
for assembling the fiberglass pushrod.
Assemble the pushrod pipe for rudder in the fuselage.
Install the control horn to the rudder.
Assemble the horn to the elevator and connect the
linkage to the servo.
Assemble the rod for rudder to the fuselage from the
pushrod tube in the fuselage as below.
37
38
36
39
8
40
Accessory list for the coming installation steps.
motor dimension 42x50mm
55mm
3
Screw(4x25mm)
3
1
Blind Nut (4mm)
Main landing gear
Washer (4x8mm)
3
4.2mm
Take 50th step as reference
Electric motor mount
2
4
Screw (3x10mm)
4
Blind Nut (4mm)
4
Screw (3x10mm)
Screw (3x10mm)
4
Screw (4x16mm)
Drill holes and set blind nut in appropriate position and
assemble the main landing gear.
The front view of the motor install completion.
Assemble the motor mount to the relevant position in
the wing.
30
28
26
29
6
Washer (4x13mm)
Washer (4x13mm)
Nut (4mm)
Screw (4x40mm)
Self-tap Nut (4mm)
Assemble the wheels to the landing gear.
27
The mail landing gear installation finished sketch map.
Accessory list for the coming installation steps.
Wheel (65 mm)
2
2
2
2
Clevis
Screw (3x35mm)
Washer(3x15mm)
2
Washer(3x15mm)
Lock Nut (3mm )
pushrod(3x500mm)
2
TP Screw (4x16mm)
6.2mm
Blind Nut
4
Blind Nut (4mm)
4
Screw (4x16mm)
12mm
20mm
pushrod(3x500mm)
1
Rod (1.8x700mm)
2
Rod (1.8x800mm)
1
Rod (1.8x800mm)
Assemble the motor mount to the relevant position on
the firewall
Drill holes and set blind nut in appropriate position in
the firewall before install the motor mount.
Drill a hole to appropriate position and epoxy the
pushrod in it.
Assemble the pushrod pipe for elevator in the fuselage.
Assemble the rod for elevator to the fuselage from the
pushrod tube in the fuselage as below.
31
34
7
32
Accessory list for the coming installation steps.
35
33
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