THE FINEST RADIO CONTROL MODELS
R
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.
No. 21722
No. 21721
2
3
4 ~ 5
6 ~ 24
25
26 ~ 35
36
37 ~ 41
42 ~ 44
INDEX
INSTRUCTION MANUAL
RADIO CONTROLLED
46 ENGINE POWERED
HELICOPTER
REQUIRED FOR OPERATION
RADIO PREPARATION
BEFORE YOU BEGIN
ASSEMBLY
OPERATING YOUR MODEL SAFELY
SETTINGS FLIGHT LESSONS MAINTENANCE
PARTS LIST
EXPLODED VIEW
SPARE & OPTIONAL PARTS
SAFETY PRECAUTIONS
This radio control model is not a toy.
This is a kind of machine including a rotor which rotates with
high speed and has a possibility to be dangerous. You are
responsible for this model's assembly, safe operation (place
to fly, frequency) check and adjustment of the model.
Assemble this kit only in places out of children's reach!
Take enough safety precaution before and after operation.
After every flight, inspect screws and nuts for looseness, and
parts for wear. Any damaged parts should be immediately
replaced, repaired or adjusted for safe operation.
Use only Kyosho genuine parts for replacement.
Failing to do so will result in accidents or malfunction of the
model. Kyosho do not take responsibilities for the accidents
and crashes if using the parts which are not Kyosho genuine
ones.
Always keep this instruction manual ready at hand for quick
reference, even after completing the assembly.
© 1997 KYOSHO
CONCEPT 46 VR
9711 PRINTED IN JAPAN
© 1997 KYOSHO
*SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.
R
THE FINEST RADIO CONTROL MODELS
SUPPLEMENTARY
INSTRUCTION SHEET
CONCEPT 46 VR
Please use these supplementary instructions in conjunction with the manual included in your kit.
15
Engine
Assemble the counter gear.
Page 11
32
Tail Pipe
Page 19
No.21721 / No.21722
3 mm
3mm
3X14mm
4
If the backlash is too close, tighten the four pcs. of 3X14mm
cap screws as holding the engine downward.
Rotate the gear and check
if the tail rotor rotates.
Insert the tail boom up to the
mark indicated.
3X18mm
3mm
Ensure to tighten 3X18mm cap screws
(2 pcs.) and 3mm nylon nut (2 pcs.) .
60mm
approx. 60mm
2
3 18mm
Cap Screw
2
3mm
Nylon Nut
3 12mm
3 14mm
3 12mm
3 20mm
3mm
3 14mm
3 12mm
4 mm
4 mm
175
55
469
58
57
56
18
VR-6, VR-B
AA-size Batteries (for transmitter)
19 ~ 20mm
39 ~ 41mm
33 ~ 36mm
2
REQUIRED FOR OPERATION (1)
2
SUITABLE SERVOS
Engine
Glow Fuel
No. 6054 K&B500H
No. 80701
Fuel Pump (Electric 12V)
No. 80702
Fuel Pump (Manual)
K&B500H Model Engine Fuel
No. 96715
One-touch Plug Heater
No. 1791
Blitz Starter
No. 1876/No. 39308
Fuel Filter
No. 94402
Medium Strength
No. 94403
Hard Strength
Loctite
1
Radio for engine-powered R/C helicopters,
and dry batteries
Radio for engine-powered
R/C helicopters
This kit requires a radio for engine-powered
R/C helicopters with 5 servos and 1 gyro.
For more information on the radio, refer to
its explanations.
With semi-assembled kits, the engine
comes pre-installed. Install the muffler.
4
Required for engine starting:
5
Glues & Lubes
6
Equipment coming in handy
3
Glow Fuel and Fuel Pump
AAAA
AAAA
The illustrations showing the radio were taken from the Futaba radio explanations.
CAUTION: Only use a radio for R/C heli-
copters! (Any other radio is prohibited!)
Glow Plug
Plug Heater
.46 engine for helicopters
Engines for R/C models require glow fuel.
Do not use gasoline or kerosene; both
cannot be used! Also, be very care-ful when
han-dling glow fuel which is high-ly inflamma--
ble and high-explosive!
Fuel should contain at least 10% of nitro.
Fuel Pump
m
o
del e
ngin
e fu
el
500H
WARNING: Gasoline
or kerosene cannot
be used!
Starter
Screw Locking Compound /
Screw Cement / Threadlocker
Grease
Epoxy Glue
Instant Glue
12V Battery
Fuel Filter
Grease
Epoxy A
Epoxy B
No. 96506
Ball Diff Grease
GelBoy
No. 96627
No. 71481
Sealed Battery
7
Tools required
REQUIRED FOR OPERATION (2)
3
TOOLS INCLUDED
Sharp Hobby Knife
1.5mm, 2mm, 2.5mm, 3mm
Hex Wrench (1.5mm, 2mm, 2.5mm, 3mm)
Phillips Screw Driver (L.M.S)
Needle Nose Pliers
Awl
Wire Cutters
Plug Wrench
RADIO PREPARATION
SPECIAL TAPER REAMER
No.80311
No need to pre-drill!
Drills neat 1mm to 15mm holes directly!
Set up the radio as explained below.
ON
OFF
1
2
3
4
5
7
8
9
10
11
12
1
Extend the antenna. (Transmitter)
2
3
Extend the antenna. (Receiver)
4
Down the trims.
Center the trims.
5
Switch on the transmitter.
7
6
6
Switch on the receiver.
8
Make sure the servos move according to your transmitter inputs.
9
Switch off the receiver.
10
Switch off the transmitter.
Retract the antenna. (Transmitter)
11
12
Insert AA-size dry batteries. (Transmitter)
Connect the charged Ni-Cd battery.
START
FINISH
Transmitter
Receiver
Switch
Servo
Gyro
1
2
12
11
4
3
8
ON
OFF
10
Reverse Switch
Pitch
Aileron
Elevator
Throttle
Rudder
Normal
Reverse
6
7
9
5
CAUTION: Handle tools carefully!
WICHTIG: Gehen Sie vorsichtig mit Werkzeugen um!
IMPORTANT: Maniez les outils avec prudence!
1
Read through the manual before you begin, so you will have an overall idea of what to do.
BEFORE YOU BEGIN (1)
4
Check all parts. If you find any defective or missing parts, contact your local dealer or our Kyosho Distributor.
2
How to read the instruction manual:
3
Symbols used throughout the instruction manual, comprise:
4
Apply epoxy glue.
Apply instant glue (CA glue, super glue).
Apply grease.
Apply threadlocker (screw cement).
Assemble as many times as
specified (here: twice).
x2
Assemble left and right sides
the same way.
True-to-scale diagram.
Must be purchased separately!
Tentatively tighten.
Drill holes with the specified
diameter (here: 2mm).
Pay close attention here!
Part bags used.
Cut off shaded portion.
2mm
Example
Assemble in the specified
order.
9
HH-2
2
2.6 x 10mm
Cap Screw
1
3 x 3mm
Set Screw
2
2.6mm
3 x 3mm
Tail Rotor Assembly
2.6 x 10mm
2.6mm
92
Key Number, Part Name, True-to-scale
Diagram, Quantity Used
This instruction manual uses seve-
ral symbols. Please note them
during the entire assembly.
All parts except screws are identified by
key numbers. For purchasing spare parts,
find the key no. of the part needed in the
spare part list and refer to the left column
to look up the corresponding order no.
Nylon Nut
BEFORE YOU BEGIN (2)
5
Self-tapping (TP) screws cut threads into the parts when being tightened. Excessive force may
permanently damage parts when tightening TP screws. It is recommended to stop tightening when
the part is attached or when some resistance is felt after the threaded portion enters the plastic.
7
The threads are stripped.Overtightened.
Correct
Wrong
This kit contains screws and hardware in different metric sizes and shapes. Before using them, check the screws on the true-to-scale diagrams on the
left side in each assembly step. Some screws are extras.
6
SCREWS
Screw
Cap Screw
TP
Self-tapping (TP) Screw
TP
TP F/H Screw
Set Screw
OTHER HARDWARE
3x12mm
Screw
3mm
12mm
Flat Head (F/H) Screw
3mm
Washer Nut
3mm
5x10mm
Metal Bushing Bearing
5mm
10mm
4mm
E4
E-ring
6,000
ABOUT THE "PERSONAL FREQUENCY MONITOR"
LED
Before operating your helicopter, plug the crystal of your
frequency into the Personal Fre-quency Monitor. As soon
as you switch it on, you'll know for sure through an interfe--
rence signal and LED lamps whether somebody else is on
your fre-quency or not!
PERSONAL
BAND MONITOR
40MHZ
OFF
ON
KYOSHO
CORPORATION
No.80591
JRMSA
77
KYOSHO CORPRATION
No.80591 (40MHz)
No.80592 (72MHz)
Special crystals are
available at Kyosho!
Inside the kit, you will find assemblies, i.e. sections that are pre-assembled
and hence consist of more than one part. To make sure these assemblies
are safely assembled, check among others their screws for looseness. Only
then, build in the assemblies.
5
No.21722 No.21721
This instruction manual is both for kit No.21722 and semi-assembled kit No.21721 with
engine.
When referring to the instructions for completing the assembly, make the following distinctions.
CONCEPT 46 VR (assembly kit) : All steps from through .
CONCEPT 46 VR (semi-assembled) : All steps from through .
401
4016 23
401
4016 23
Apply grease.
2 8mm
RT/H Screw
2
1
2
Part bags used.
2 8mm
30mm
approx. 30mm
1
1
4 5mm
Set Screw
6 12mm
Ball Bearing
2
128
Hiller Control Lever Bushing
Tentatively
tighten.
Assemble in the
specified order.
VR-A, VR-B
Rotor Head
VR-A, VR-E
Rotor Head
Assemble left and right
sides the same way.
Linkage Ball
2
4 5mm
Apply threadlocker
(screw cement).
6
Align with by rotating .
3
4
Part bags used.
Assemble in the specified order.
4mm
3 6mm
2 10mm
A Ð A '
Tighten the set screws when A and A ' are equally long.
To balance left and right ends, place a piece of tape to the lighter end.
Rotor Head
VR-A, VR-B
Rotor Head
2mm
Hex Wrench 2mm
A A
'
56
204
203
422
212
Note the direction of parts and .
Small
Large
2 10mm
RT/H Screw
2
3 6mm TP
Screw
4
4mm
Nylon Nut
2
4
2
5 13mm
Ball Bearing
56
Linkage Ball
212
5 25mm
Shaft
2
5 7mm
Spacer
2
5 9mm
Metal Bushing
4
425
Thrust Bearing
2
2
204
Thrust Collar
203
422
424
Note the different hole sizes in .
7
x2
x2
Assemble as many times as specified (here: twice).
Apply grease.
5
2.6mm
2.6 12mm
2.6mm
Nut
8
2.6 12mm
Screw
8
VR-A
Rotor Head
8
12
6
163
10
4.8mm
Ball End
4
2 36mm
Adjustable Rod
368
2
2 62mm
Adjustable Rod
10
163 368
368
,
163
163
10
x2
Stabilizer Control Rod
47mm
approx. 47mm
Pitch Rod
21.5mm
approx. 21.5mm
Stabilizer Rod
22mm
approx. 22mm
Rotor Head
VR-A
7
Stabilizer Control Rod
Stabilizer Rod
Pitch Rod
Rotor Head
Part bags used.
True-to-scale diagram.
x2
Assemble as many times as specified (here: twice).
Assemble left and right sides
the same way.
2
8 12mm
Ball Bearing
2
2 14mm
Pin
4
3 7mm
F/H Screw
1
3 18mm
Cap Screw
1
3mm
Nylon Nut
9
VR-D
VR-D, VR-5, VR-6
Main Gear
431
59
31
431
431
374
31
59
Mast Assembly
Part bags used.
Tentatively tighten.
8
VR-B, NE-C, VR-D
Mast
No.96506
150
48
47
46
3 7mm
3mm
3 18mm
451
230
230
33
Apply threadlocker
(screw cement).
212
188
2 8mm
2 8mm
212
2
Linkage Ball
212
E E2.0
E-ring
2
230
3 14mm
Shaft
1
33
9
2
10
2 8mm
RT/H Screw
Control Lever
Apply grease.
1
3 20mm TP
Screw
3 8mm
Washer
11
12
VR-6, VR-B
Engine
Part bags used.
Must be purchased
separately!
VR-D, VR-5
Aileron Lever
Apply threadlocker
(screw cement).
1
2 8mm
RT/H Screw
3
3 30mm
Cap Screw
1
3.5 14mm
Cap Screw
4
Linkage Ball
3
212
mm
Bearing
1
49
mm
Bearing
2
226
Aileron Lever Collar
1
37
Incl.with Engine
3.5 14mm
3 30mm
3mm
Incl. with Engine.
Locking Jig
Engine
Use to lock piston while tightening
nut on crank shaft.
1
3mm
Nylon Nut
Apply epoxy glue.
212
2mm
2 10mm
2mm
2mm
Drill holes with the specified diameter (here: 2mm).
1
2 10mm
RT/H Screw
1
2mm
Nut
1
Linkage Ball
212
10
2 8mm
2 8mm
2 8mm
3 8mm
3 20mm
212
212
247
3 12mm
3 20mm
3 20mm
Cap Screw
2
3 12mm
Cap Screw
2
3 12mm
3 14mm
3 12mm
3 20mm
3mm
3 14mm
388
479
Counter Gear Assembly
479
388
3 12mm
3 20mm
Cap Screw
2
4
3 14mm
Cap Screw
4
3mm
Washer
6
3 12mm
Cap Screw
Insert the ball
in the hole.
212
15
Engine
VR-B, VR-5
VR-6
Part bags used.
Fuel Tank
14
VR-7
13
VR-6
Fan Casing
2.6 10mm
To engine
Silicone Tube (thin)
( 140mm)
Silicone Tube (thick 140mm)
( 140mm)
Silicone Tube (thick 140mm)
To muffler
When using a fuel filter,
install here.
5
2.6 10mm TP
Screw
467
466
393
461
393
393
390
391
115
110
11
17
Part bags used.
403
405
408
404
542
403
253
VR-E, VR-10, VR-12
Tail Boom
16
VR-D, VR-5, NE-9, VR-12
Frame
255
254
factory - inserted
Apply grease.
2 8mm
RT/H Screw
2
3 10mm TP
Screw
1
3 15mm TP
Screw
6
Linkage Ball
2
1
1
212
1
4 5mm
Screw
1
4 14mm
Cap Screw
2
3 35mm
Cap Screw
4mm
Nut
2
3mm
Nut
3 25mm TP
Screw
2
3 10mm
Washer
3 118mm
Screw
1
assembly.
12
2 8mm
3 25mm
3 15mm
3 15mm
3 15mm
3 15mm
3 35mm
3 25mm
3mm
3 10mm
212
212
460
455
3 10mm
Apply threadlocker
(screw cement).
Apply threadlocker (screw cement).
2
2
3 4mm
Set Screw (Special type)
3 14mm
Cap Screw
2
3 6mm
Washer
19
5 10mm
Ball Bearing
4
83
2 8mm
Pin
2
180
6 10mm
Ball Bearing
2
88
438
83
3 14mm
3 6mm
Fasten both 3X4mm set screws
onto the spots indicated.
Reverse Screw
180
88
178
538
538
478
91
243
438
Part bags used.
Apply grease.
Tail Rotor
VR-B, VR-10
2.6mm
Nut
1
2
1
1
2.6 8mm
Screw
2.6 14mm
Screw
3 4mm
Set Screw
4 5mm
Set Screw
3
18
3 4mm
5 10mm
Ball Bearing
2
83
8 14mm
Ball Bearing
2
76
79
84
83
537
473
80
2.6mm
4 5mm
2.6 8mm
2.6 14mm
83
81
474
75
76
VR-B, VR-10
Tail Gearbox
2
3
1
1
2 12mm
Pin
79
1
5 7 mm
Collar
84
Filmly tighten the set screws to the flats.
Pay close attention here!
13
Part bags used.
1
2mm
Nut
1
14
Tentatively tighten.
3 10mm TP
Screw
2
3 25mm
Cap Screw
2
3mm
Nylon Nut
2
22
3 10mm
3 25mm
3mm
74
72
405
Tail Fin
VR-12
1
2 16mm
Cap Screw
2
2mm
Washer
1
mm
Collar
21
27
539
212
540
2 16mm
2mm
2mm
2mm
2 10mm
27
Control Lever
VR-10
Click in.
2
2 10mm
RT/H Screw
20
4
2.6 8mm
Cap Screw
2
3 16mm
Cap Screw
4
2.6mm
Nylon Nut
2
3mm
Nylon Nut
1
2 10mm
RT/H Screw
Linkage Ball
2
212
3 16mm
2 10mm
3mm
2.6mm
2.6 8mm
Tighten the screws ensuring
can still move.
244
210
210
210
212
245
Tail Rotor
VR-10
Linkage Ball
1
212
mm
Collar
540
Assemble left and right sides the same way.
3 18mm TP
Screw
4
1
1
3 20mm
Cap Screw(Special type)
Nylon Nut
20
2.6 12mm TP
Screw
24
25
3 20mm
3mm
Stabilizer Control Rod
Stabilizer Rod
Pitch Rod
VR-A
Rotor Head
VR-8
Radio
Part bags used.
Assemble left and right sides the same way.
3 8mm TP
Screw
2
4
23
Skid
VR-8, VR-11
3 4mm
Set Screw
15
410
102
103
107
102
181
3 8mm
3 8mm
3 8mm
3 mm
25mm
96
Pitch Control Servo
Rudder Control Servo
Elevator Control Servo
2.6 12mm
2.6 12mm
Throttle Control Servo
Aileron Control Servo
Note the direction of each servo.
Must be purchased separately!
Cords
97
2
2
4.8mm
Ball End
2 84mm
Adjuster Rod
27
Part bags used.
26
541
10
Gyro Amp
Gyro
Switch
Switch
Gain Controller
Receiver
153
153
Wrap the receiver in sponge for
protection against vibration.
Make sure the gyro does not
contact the frame.
Follow the radio instruction
manual for connecting.
NiCd Battery
153
153
153
152
VR-8
Elevator Linkage
VR-8, VR-11
Radio
Must be purchased separately!
2mm
2mm
Drill holes with the specified diameter (here: 2mm).
16
541
10
541
541
Screw down to the
spots indicated.
2mm
approx. 2mm
10mm
approx. 10mm
10mm
approx.
10mm
1.7mm
1.7mm
Make and of same length.
Refer to the diagram above and
adjust the tightness of .
A B
A B
10
10
A
B
10
28
29
VR-8
1
1
4.8mm
Ball End
2 84mm
Adjuster Rod
541
10
1
1.7 260mm
Rod
475
Cut off shaded portion.
Must be purchased separately!
Part bags used.
10 9 8 7 6
cm
Pitch Linkage
VR-8
Rudder Rod
5 4 3 2 1 0
Neutral
Neutral
3 10mm TP
Screw
1
Assemble in the
specified order.
17
122
10
8 12mm
approx.
8mm~12mm
78mm
approx. 78mm
Parallel
Low
High
If adjuster rod is interfere with frame, please bend adjuster rod to avoid interfere.
475
452
3 10mm
Left
approx. mm
90
Right
1
2
476
10
Refer to the diagram above and adjust the tightness of .
10
10
12 14mm
approx. 12~14mm
Slow
High
10
10
477
A
B
Make and of same length.
Refer to the diagram above and
adjust the tightness of .
A B
A B
10
10
Screw down to the
spots indicated.
477
477
2mm
approx. 2mm
10mm
approx. 10mm
10mm
approx. 10mm
1.7mm
1.7mm
27mm
approx. 27mm
31
Part bags used.
30
1
1
4.8mm
Ball End
2 160mm
Adjuster Rod
476
10
2
1
4.8mm
Ball End
2 81mm
Adjuster Rod
477
10
VR-8
Aileron Linkage
VR-8
Throttle Linkage
WARNING :
1
2 40mm
Adjustable Rod
430
Ensure the throttle servo moves into the correct direction! If it moves into the
opposite direction, the main rotor will rotate at high rpm when starting the engine.
This is dangerous as it may result in damages and, worse, serious accidents!
Neutral
2mm
2mm
Drill holes with the specified diameter (here: 2mm).
18
1
1
3 4mm
Set Screw
4
2 5mm TP
Screw
2
3 10mm TP
Screw
33
32
Rotate the gear and check
if the tail rotor rotates.
Insert the tail boom up to the
mark indicated.
Twist as the diagram shows.
3mm
1
3 20mm
Cap Screw
1
3mm
Nylon Nut
407
406
454
3 20mm
2 5mm
Part bags used.
Assemble left and right
sides the same way.
2
1
5
4
3
Assemble in the
specified order.
VR-8
Tail Pipe
VR-6, VR-11, VR-12
Tail Boom
2mm
Loosen the screws.
Tighten the screws.
Apply instant glue
(CA glue, super glue).
View from back.
453
60mm
approx. 60mm
3 4mm
454
453
542
15mm
453
Tighten the set screw when a 90¡ angle
is produced.
90
Neutral
19
407
3 10mm
2 5mm
2
3
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