Century Radikal G20 Instruction manual

Kit Features:

Lightweight yet extremely strong G10 or carbon fiber frames.

High gloss large diameter 25mm tail boom with belt drive system.

Blade grips accommodate blades 12mm (LT) to 18mm (HD) blade roots.

300 mL fuel tank for long engine run time.

Convenient and easy access to spark plug.

Triple bearing supported blade grips and tail blade grips.

Machined center dual ball bearing swashplate for 120 degree CCPM.

Adjustable bell-hiller ratio allows tuning for preferred cyclic response (HD)

Tunable flight characteristics for stability or speed.

Specifications:

Length: 1366mm

Height: 381mm

Width: 260mm

Main rotor diameter: 1435mm

Tail rotor diameter: 262mm

Main rotor blades: 600mm-640mm

Tail rotor blades: 95mm

© 2010 Century Helicopter Products - All rights reserved.

Version 1.10

INTRODUCTION

Radikal Gasser

Thank You

Congratulations on the purchase of the latest Century Gasser series, the Radikal G20. You’re about to build one of the world’s first fully functional 3D aerobatic helicopters powered by the Zenoah 20cc gasoline engine. Be sure to read through and follow the instructions during the build.

Warning

This radio controlled model is not a toy! It is a precision machine requiring proper assembly and setup to avoid accidents. It is the responsibility of the owner to operate this product in a safe manner as it can inflict serious injury otherwise. It is recommended that if you are in doubt of your abilities, seek assistance from experienced radio control modelers and associations. Keep loose items that can get entangled in the rotor blades away for the main and tail blades, including loose clothing, hair, or other objects such as pencils and screwdrivers. Especially keep your hands away from the rotor blades. As manufacturer, we assume no liability for the use of this product.

Flight Guidelines

Please note this checklist is not intended to be a replacement for the content included in this instruction manual. Although it can be used as a quick start guide, we strongly suggest reading through this manual completely before proceeding.

Always turn the transmitter on first

Allow the gyro, and receiver to arm and initialize properly

Do a pre-flight check making sure all electronics are working and look for any mechanical issues

Fly the model

Land the model

Turn off the engine

Always turn the transmitter off last

General Guidelines

Apply thread lock to all metal to metal thread contact points. Do not apply CA (cyanoacrylate) glue or thread lock to ny-lock nuts (metal nuts with plastic inserts). Diagrams indicated by bounding boxes for screws, bearings, etc. are illustrated at a 1-to-1 ratio. All other illustrations are not drawn to scale. Throughout this manual, you will find building tips. Please follow the tips and use common sense when building.

Pre-assembly Information

U p o n o p e n i n g t h e k ti , a l l t h e m a j o r c o m p o n e n t p a r t s a r e b a g g e d f o r e a s e o f a s s e m b l y w h i c h c o r r e s p o n d t o t h e s e c it o n s o f t h e m a n u a .l

Various assemblies have been pre-assembled however, only as a reference assembly. Final assembly is up to the user. Installation onto the particular parts, screws and nuts required for each step are packaged in the same bag as the parts. Be careful when opening each bag as not to lose any hardware. Care has been taken in filling and packing of each bag however mistakes do happen. If there is a parts shortage or missing hardware please contact us at:

Century Helicopter Products

1740-C Junction Ave.

San Jose, CA. 95112 www.centuryheli.com

Page 2

REQUIRED ITEMS

Radikal Gasser

6 CHANNEL

CCPM TRANSMITTER

(MINIMUM)

SERVOS X 5

6 CHANNEL RECEIVER

(MINIMUM)

CN2031

4-WAY WRENCH

CN2034A

BALL LINK PLIERS

CN2050

PADDLE GAUGE

87 TO 92 OCTANE

GASOLINE

CN3070

20cc TORPEDO

GASSER TUNED

MUFFLER

DREMEL TOOL

OR SIMILAR

GYRO

20CC ZENOAH

GASOLINE ENGINE

RECEIVER BATTERY

HOBBY SCISSORS

CN2017

HEX DRIVERS

1.5, 2.0, 2.5, 3.0, 4.0, 5.0

CN2027

G-FORCE PITCH GAUGE

NEEDLE NOSE

PLIERS

ELECTRONIC

I G N I T I O N

BATTERY

SLOW &

Medium CA

GLUE

Medium

(Medium)

THREAD-

LOCK

METRIC RULER OR

SIMILAR MEASURING

DEVICE

CN2255

CONTROL ROD

SETUP GAUGE

ZIP TIES

600MM TO 660MM

MAIN ROTOR BLADES

SYNTHETIC

OIL/GREASE

2-STROKE

MOTOR OIL

CN2051

ACCURATECH BLADE BAL-

ANCER V.2

HOBBY KNIFE

Warranty Period

Century Helicopter Products warranties that the Products purchased (the “Product”) will be free from defects in materials and workmanship 30 days from the date of purchase by the Purchaser.

Limited Warranty

(a) This warranty is limited to the original customer (“Purchaser”) and is not transferable. REPAIR OR REPLACEMENT AS PROVIDED

UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE PURCHASER. This warranty covers only those Products purchased from an authorized Century Helicopter Products dealer. Third party transactions are not covered by this warranty. Proof of purchase is required for warranty claims. Further, Century Helicopter Products reserves the right to change or modify this warranty without notice and disclaims all other warranties, express or implied.

(b) Limitations- CENTURY HELICOPTER PRODUCT MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NON-

INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCT. THE PURCHASER ACKNOWLEDG-

ES THAT THEY ALONE HAVE DETERMINED THAT THE PRODUCT WILL SUITABLY MEET THE REQUIREMENTS OF THE PURCHASER’S

INTENDED USE.

(c) Purchaser Remedy- Century Helicopter Products’s sole obligation hereunder shall be that Century Helicopter Products will, at its option, (i) repair or (ii) replace, any Product determined by Century Helicopter Products to be defective. In the event of a defect, these are the Purchaser’s exclusive remedies. Century Helicopter Products reserves the right to inspect any and all equipment involved in a warranty claim. Repair or replacement decisions are at the sole discretion of Century Helicopter Products. This warranty does not cover cosmetic damage or damage due to acts of God, accident, misuse, abuse, negligence, commercial use, or modification of or to any part of the Product. This warranty does not cover damage due to improper installation, operation, maintenance, or attempted repair by anyone other than Century Helicopter Products. Return of any goods by Purchaser must be approved by Century Helicopter Product s before shipment.

Page 3

AMA RULES & REGULATIONS

General

Radikal Gasser

1) I will not fly my model aircraft in sanctioned events, air shows or model flying demonstrations until it has been proven to be airworthy by having been previously, successfully flight tested.

2) I will not fly my model higher than approximately 400 feet within 3 miles of an airport without notifying the airport operator. I will give right-of-way and avoid flying in the proximity of full-scale aircraft. Where necessary, an observer shall be utilized to supervise flying to avoid having models fly in the proximity of full-scale aircraft.

3) Where established, I will abide by the safety rules for the flying site I use, and I will not willfully or deliberately fly my models in a careless, reckless and/or dangerous manner.

4) The maximum takeoff weight of a model is 55 pounds, except models flown under Experimental Aircraft rules.

5) I will not fly my model unless it is identified with my name and address or AMA number on or in the model. (This does not apply to models while being flown indoors.)

6) I will not operate models with metal-bladed propellers or with gaseous boosts, in which gases other than air enter their internal combustion engine(s); nor will I operate models with extremely hazardous fuels such as those containing tetranitromethane or hydrazine.

Radio Control

1) I will have completed a successful radio equipment ground range check before the first flight of a new or repaired model.

2) I will not fly my model aircraft in the presence of spectators until I become a qualified flier, unless assisted by an experienced helper.

3) At all flying sites a straight or curved line(s) must be established in front of which all flying takes place with the other side for spectators. Only personnel involved with flying the aircraft are allowed at or in front of the flight line. Intentional flying behind the flight line is prohibited.

4) I will operate my model using only radio control frequencies currently allowed by the Federal Communications Commission. (Only properly licensed Amateurs are authorized to operate equipment on Amateur Band frequencies.)

5) Flying sites separated by three miles or more are considered safe from site-to site interference, even when both sites use the same frequencies. Any circumstances under three miles separation require a frequency management arrangement, which may be either an allocation of specific frequencies for each site or testing to determine that freedom from interference exists. Allocation plans or interference test reports shall be signed by the parties involved and provided to AMA Headquarters. Documents of agreement and reports may exist between

(1) Two or more AMA Chartered Clubs, (2) AMA clubs and individual AMA members not associated with AMA Clubs, or (3) two or more individual AMA members.

6) For Combat, distance between combat engagement line and spectator line will be 500 feet per cubic inch of engine displacement.

(Example: .40 engine = 200 feet.); electric motors will be based on equivalent combustion engine size. Additional safety requirements will be per the RC Combat section of the current Competition Regulations.

7) At air shows or model flying demonstrations, a single straight line must be established, one side of which is for flying, with the other side for spectators.

8) With the exception of events flown under AMA Competition rules, after launch, except for pilots or helpers being used, no powered model may be flown closer than 25 feet to any person.

9) Under no circumstances may a pilot or other person touch a powered model in flight.

Page 4

HEAD ASSEMBLY (HD VERSION)

Radikal Gasser

BAG 1

Do not open all the bags prior to starting assembly. Open the bags step by step as you go through the instruction manual. The components are bagged to make assembly easier. The next few pages will pertain to the assembly of the head. Please follow the instructions based on the head type you own. Make sure to apply threadlock to any screws going into metal.

Insert one ball bearing into each bearing cup and insert into the offset plate. Apply one small drop of slow cyanoacrylate glue (Slow CA) to the joint between the backside of the bearing cup and the offset plate. Insert one ball bearing into each tie bar. Using an available

M3 socket cap screw, form threads

Take special care when pressing in these bearings. Do not press in on the inner sleeve of the bearing into both ends of the tie bars. Insert one

M3x6 button head screw through the right side hole of the offset plate and thread into one tie bar.

7

2

1

M a k e t w o i d e n t i c a l s u b a s s e m -

6

5

3 blies . Note that the bearing cups face outwards from the head block. Insert one M3x14 button head screw through the tie

4 bar bearing, slide one steel spacer and carefully apply Medium threadlock to the exposed threads and insert into the right side of the head block. Do not overtighten. Repeat for the second sub-assembly. Once complete apply a small amount of slow cyanoacrylate glue and insert one

CNLR1020 special long thread ball into each offset plate to complete the assembly.

CNLR1017 L=6.5MM

CNM3X14BHCS

CNM3X6BHCS

CNM2.5X8CS

CNBB0730

CNBB0840

8

HI3167G

10

9

Do not secure all the screws until lining up the components in the following steps.

Page 5

No.

1

6

7

8

4

5

2

3

9

10

Part #

CNLR1017

Description

Stainless Ball, 3mm Thread, Medium(M3球头螺丝)

HI3167B

CNBB0730

Seesaw Offset Plates( 平衡杆固定片)

3x7x3 Ball Bearing( 轴承)

HI3167G

CNM3X6BHCS

CNBB0840

HI6160A

Seesaw Tie Bar Set( 平衡杆控制臂)

M3x6 Button Head Cap Screws( 伞头螺丝)

4x8x3 Ball Bearing( 轴承)

NX Rotor Head Yoke(主旋翼中心座)

HI3167G

CNM3X14BHCS

3x5x6 Seesaw Tie Bar Set( 铁套)

M3x14 Button Head Cap Screws( 伞头螺丝)

CNM2.5X8CS

M2.5x8 Cap Screws( 杯头螺丝)

2

2

2

1

2

Qty

2

2

2

2

2

HEAD ASSEMBLY (LT VERSION)

Radikal Gasser

BAG 1

Do not open all the bags prior to starting assembly. Open the bags step by step as you go through the instruction manual. The components are bagged to make assembly easier. The next few pages will pertain to the assembly of the head. Please follow the instructions based on the head type you own. Make sure to apply threadlock to any screws going into metal.

Insert one ball bearing into each bearing cup and insert into the offset plate. Apply one small drop of slow cyanoacrylate glue (Slow CA) to the joint between the backside of the bearing cup and the offset plate. Insert one ball bearing into each tie bar. Using an available

M3 socket cap screw, form threads into both ends of the tie bars. Insert one

M3x6 button head

5 screw through the right side hole of the offset plate and thread into one tie bar.

3

4

6

Take special care when pressing in these bearings. Do not press in on the inner sleeve of the bearing

7

Make two identical subassemblies . Note that the bearing cups face outwards from the head block. Insert one M3x14 button head screw through the tie bar

2

1 bearing, slide one steel spacer and carefully apply Medium threadlock to the exposed threads and insert into the right side of the head block. Do not overtighten. Repeat for the second sub-assembly. Once complete apply a small amount of slow cyanoacrylate glue and insert one CNLR1020 special long thread ball into each offset plate to complete the assembly.

9

8

3x5x7.5

CNLR1017 L=6.5MM

CNM3x14BHCS

CNM3x6BHCS

CNBB37

CNBB48

Do not secure all the screws until lining up the components in the following steps.

1

2

3

4

5

6

7

8

9

No.

Part #

CNM3x6BHCS

CNBB48

CNLR1017

HI3167B

CNBB0730

HI3167G

HI3167S

CNM3x14BHCS

HI6160A

Description

Button Head Screw( 圆头螺丝)M3x6

Bearing(滚珠轴承)4x8x3

Stainless Ball, 3mm Thread, Medium(M3球头螺丝)

Seesaw Offset Plate(平衡杆控制器)


Seesaw Offset Plate 2(平衡杆控制器2)

3x5x7.5 Seesaw Tie Bar Set(铁套)

Button Head Screw( 圆头内六角螺丝)M3x14

Head Block(主旋翼中心座)

Qty

2

2

2

2

2

1

2

2

2

Page 6


BAG 1

Pushrod assembly (parts 2 through 4) is already assembled but check that the length is actually 43mm (center to center). As the pushrods are built and installed they should be checked for tightness. Press one ball link onto each double studded steel ball, making sure that pressure is applied from the side of the ball link with circle mark. While holding one flybar control arm, apply a small amount of slow cyanoacrylate glue and thread one end of the double studded steel ball into each standoff. When it becomes difficult to turn with fingers, apply slow CA to the threads and start screwing in the tapered control arm stand-off on the other end of the ball. Slide and center the flybar through the head assembly. Carefully look at the flybar control arm assemblies from the previous step and notice that when installed correctly, the securing set screw is on top. Insert one

M4x6x0.5 micro washer #CNLR1006 against each bearing then slide the control arm halves onto each side, so that they match together and the set screw remains on top. Insert one M3x12 but-

10 ton head socket screw to secure the opposite standoff.

Hold the tapered standoff using pliers while tightening the screw as the rotor head rotates clockwise.

9

4

3

8

1

2

Radikal Gasser

6

5

Apply a small amount of cyanoacrylate glue to the special long thread ball.

All ball links are molded to be installed in only one direction. Look carefully at the hole for the ball as that side is 1mm larger .

7

CA

CNM3X12BHCS

CNM4X5SS

HW3176C

Loosely tighten the M4x5 set screws into the round aluminum inserts aligned with the flat spots on the flybar. Tighten both set screws, one at a time using Medium threadlock. Make a pencil mark 5mm past the threads on both ends of the flybar. Thread the flybar paddles onto the flybar until the mark is reached and align the paddles parallel. Again using the ruler, rotate one paddle or the other to get equal distances while remembering the leading edge of the paddles turn clockwise.

No.

8

9

10

5

6

7

3

4

1

2

Part #

HI3176C

HI6145

HW6192

HI3176C

HI3176C

CNM3X12BHCS

HI6179B

HW3173A

CNM4X5SS

CNLR1006

Description

Flybar Arms( 平衡翼控制臂 )

Ball Link Set(球头连接头)

Pushrod Set( 拉杆)

Flybar Arms(

球头双牙螺丝 )

Flybar Arms(

平衡翼控制臂 )

M3x12 Button Head Cap Screws( 圆头螺丝)

Flybar Paddles( 平衡翼)

4mm Flybar 500mm(平衡杆)

M4x5 Socket Head Set Screw( 无头内六角螺丝)

M4X6X0.5 Washer( 平面垫片)

Make sure the distance on

both sides are equal

2

2

2

2

2

1

2

2

Qty

2

2

Page 7



NOTICE SIZE OF HOLES ON BALL LINKS

THE SIDE WITH THE SMALLER HOLE

SHOULD FACE OUTWARDS


BAG 1

Pushrod assembly (parts 2 through 4) is already assembled but check that the length is actually 43mm (center to center). As the pushrods are built and installed they should be checked for tightness. Press one ball link onto each double studded steel ball, making sure that pressure is applied from the side of the ball link with circle mark. While holding one flybar control arm, apply a small amount of slow cyanoacrylate glue and thread one end of the double studded steel ball

6 into each standoff. When it becomes difficult to turn with fingers, apply slow CA to the threads and start screwing in the tapered control arm stand-off on the other end of the ball.

Slide and center the flybar through the head assembly. Carefully look at the flybar control arm assemblies from the previ-

7

5 ous step and notice that when installed correctly, the securing set screw is on top. Insert one M4x6x0.5 micro washer

#CNLR1006 against each bearing then slide the control arm halves onto each side, so that they match together and the set screw remains on top. Insert one

M3x12 button head socket screw to secure the opposite standoff.

Hold the tapered standoff using pliers while tightening the screw as the rotor head rotates clockwise.

9

8

10

1

Radikal Gasser

4

3

2

CA

CNM3X12BHCS

CNM4X5SS

HW3176C

Loosely tighten the M4x5 set screws into the round aluminum inserts aligned with the flat spots on the flybar. Tighten both set screws, one at a time using Medium threadlock. Make a pencil mark 5mm past the threads on both ends of the flybar. Thread the flybar paddles onto the flybar until the mark is reached and align the paddles parallel. Again using the ruler, rotate one paddle or the other to get equal distances while remembering the leading edge of the paddles turn clockwise.








Page 8

No.

1

6

7

8

4

5

2

3

9

10

Part #

HI3167C

HI6145

Hw6192

Description

Seesaw Tie Bars( 稳定翼控制臂)

Ball Link Set(26 Long,4 Short)( 球头连接头)

Pushkod Set(拉杆)

HI3167C

CNLR1006

CNM4X5SS

HI3167C

M3 Two-tooth Screw Ball( M3球头双牙螺丝)

Washer 4x6x0.5( 平面垫片)

M4x5 Socket Head Set Screw (无头内六角螺丝)

Seesaw Tie Bars( 平衡杆控制臂)

CNM3X12BHCS

M3x12 Button Head Cap Screws( 圆头内六角螺丝)

HW6173A

HI6179B

4mm FLYBAR 500mm (平衡杆)

Flybar Paddles( 平衡片)

2

2

2

2

2

2

1

Qty

2

4

2


BAG 1

1:1.6

3D

1:1.3

3D & SPORT

1:1 SPORT & FAI

Using an available M3 screw, carefully form the threads in the blade grip arm. Slide the M3x18 special socket shoulder screw through the bell mixer arm from the flat side, add one M3x5x3 spacer and apply a drop of Slow Cyanoacrylate glue or Epoxy glue to the end of the threads before installing into the blade grip. Tighten the bolt until there is no end to end movement, but do not overtighten the bolt as you can strip out the hole. Make two assemblies.

blade grip.

7

Do not overtighten as you can strip the

12

Radikal Gasser

There are two types of dampeners provided. The hard black plastic dampeners

(HI6520A) should only be used for hard 3D flying. Press in the head dampers into the rotor head block. Lubricate the inside surface of each damper with light oil. Press one M8x16 ball bearing into both ends of each main rotor blade grip.

Slide one M14 thrust washer against the bearing closest to the main rotor blade. Make sure that the bearing and the thrust washer are properly seated into the deep end of the blade grip. If necessary use a socket

17

14

15 that matches the outside diameter of the bearing and press into position. The 8x13 washer/spacer (#15) is used to adjust tightness of the head. If the head is binding after tightening the M5 bolt (#6), remove one or more

16 spacers from each side. Make two assemblies.

1

2

13

11

THRUST BEARING INSTALLATION GUIDE

SIDE PROFILE - BLADE GRIP

GROOVES INSIDE

LARGER ID TOWARDS THE GRIP

RECESSED CREVICE FACES MAIN SHAFT

Press one M3x7 flanged ball

10 bearing into one side followed by one M3x5 spacer and another flanged bearing from the opposite side.

9

If the bearing is tight, lightly sand the bell mixer and use Red threadlock to bond the bearing in place. Install the CNLR1014 short

8

7 steel ball into the single hole side of the bell mixer and install the CNLR1020 medium steel ball using

Blue threadlock. Install the medium steel ball according to the table to suit your flying preference. Use the center hole for sport flying. Make two assemblies.

6

3

4

5

HW6205

CNLR1020

CNBB0730

CNLR1014

CNM5X10CS

CNBB715T

CNBB816

M3X18CS

HW6180A

HW6182

8X13

HW6182

8X15

HW6183

M5X8X15

CNM3X6BHCS

No .

7

8

5

6

9

1

2

3

4

Part # Descriptio n

Enhanced Metal Bell Mixer Set

(主桨控制臂)

HI6189 A

HW6205

CNLR1020

M3x5x3 Spacer

(垫圈)

Stainless Ball, 3mm Thread, Medium

(M3球头螺丝)

CNBB0730

CNLR1014

3x7x3 Ball Bearing (轴承)

Stainless Ball, 3mm Thread, Short

(M3球头螺丝)

CNM5X10CS

M5x10 Socket Head Cap Screws

(有头内六角螺丝)

HW6180A

CNBB715T

HW6183

M5x10x1 Feathering Shaft with Center Ball

7x15x5 Blade Grip Thrust Ball Bearing

(垫圈)

(止推轴承)

M5x8x15 Head Shim Set

(平面垫片)

Qt y

2

4

2

2

2

2

2

2

2

No

10

11

12

13

14

15

16

17

17

Part #

CNBB816

HI6184A

HW6205

Descriptio n

8x16x5 Bearing (轴承)

NX Main Rotor Blade Grips

M3x5x3 Spacer

(垫圈)

(主旋翼夹片)

CNM3x18CS

HW6182

HW6182

M3x18 Socket Head Cap Screws

(有头内六角螺丝)

8x15 Head Shim Set (平面垫片)

8x13 Head Shim Set

(平面垫片)

CNBB816

8x16x5 Bearing

(轴承)

HI6181B

Hard Head Dampeners Black

HI6181A Standard Head Dampeners Red

Page 9

Qt y

2

2

6

4

2

4

2

2

2


BAG 1

8

Do not overtighten as you can strip the blade grip.

Radikal Gasser

Press in the head dampers into the rotor head block. Lubricate the inside surface of each damper with light oil. Press one M9X13 flat washer into the end of each blade grip. If necessary use a socket that matches the diameter of the washer and press into position. Then press in one M7X13 ball bearing into both ends of each main rotor blade grip. Slide one M9 thrust washer against the bearing closest to the main rotor blade. Make sure that the bearing and the thrust washer are properly seated into the deep end of the blade grip. If necessary use a socket that matches the outside diameter of the bearing and press into posi-

7 tion. Torque down on the M5 locknut (#1) until snug making sure the grip still turns without binding. If you tighten down too much, you will crush

6 the thrust bearings. If this happens, you will need to replace the thrust bearings. Make two assemblies.

3

Do not apply threadlock to the nylock nut!

5

4

3

11

10

9

2

1

Press one M3x7 ball bearing into one side followed by one

15

M3x5 spacer and another flanged bearing from the opposite side. Install the

CNLR1014 short steel ball into one side of the bell mixer and install the CNLR1020 medium steel ball on the opposite side. Secure using

Slow Cyanoacrylate glue

. Make two assemblies.

14

13

12

THRUST BEARING INSTALLATION GUIDE

GROOVES INSIDE

9x13x1

CNM5LOCK

3x5x0.5

3x5x3

CA

CNBB0730

Using an available M3 screw, carefully form the threads in the blade grip arm. Slide the M3x18 button head cap screw through the bell mixer arm from the flat side, add one M3x5x0.5 micro washer and apply a drop of Slow Cyanoacrylate glue to the end of the threads before installing into the blade grip. Tighten the bolt until there is no end to end movement, but do not overtighten the bolt as you can strip out the hole. Make two assemblies.

M3 CNLR1016A

CNM3x14BHSC

M3 CNLR1014

CNBB1370T

CNBB1360

SIDE PROFILE - BLADE GRIP

LARGER ID TOWARDS THE GRIP

RECESSED CREVICE FACES MAIN SHAFT

Red dampener is used for normal flight #HI6181A. Black dampeners are used for 3D flight #HI6181B.

7

8

9

10

11

12

13

14

15

1

2

3

4

5

6

No.

Part #

CNM5LOCK

CNBB1370T

CNM9X13FW

CNBB1370

HI3184

HW6180S

Description

M5 Locknut(M5防松螺母)

Thrust Ball Bearing(止推轴承)7x13x4.5

Washer(垫片)9x13x1


Main Rotor Blade Grip(主桨夹片)

Spacer(铝套)

HI6181B

HW6180C

CNLR1003

Dampener Rubber(橡胶圈)

7mm Feathering haft(横轴)

CNBB0730

Washer(垫片)3x5x0.5


Spacer(铁套)3x5x3

HW6205

CNLR1014

HI3189A

M3 Linkage Ball(M3 球头螺丝牙长3.5mm)

CNM3x14BHSC

CNLR1016A

Bell Mixer Arm(混控臂)

Buton Head Socket Screw( 圆头内六角螺丝)M3x14

M3 Long Linkage Ball(M3 球头螺丝球头12mm)

Qty

2

4

2

2

8

2

2

2

2

2

1

2

4

2

2

Page 10


BAG 1

Slide the washout guide and the rotor head onto the main shaft. Insert the M4x22 shoulder socket cap screw through the rotor head hub and main shaft and secure with one M4 locknut, torque down the screw. Apply Medium threadlock to the

M2.5x8 socket cap screws and tighten into the bottom of the rotor head block to clamp against the main shaft, do not over torque. Position the washout guide against the collar and align one hole to the vertical slot in the rotor head. Apply

Medium threadlock to the M3x4 set screws and evenly tighten set screws in place.

5

6

Radikal Gasser

Do not apply CA or thread lock to lock nut!

4

M3x4

M2.5x8

M4x22

M4防松螺母

Do not over-tighten!

3

2

1

1

2

3

4

5

6

No.

Part #

HI6153

CNM3x4SS

HW6053A

CNM4LOCK

CNM4x22CS

CNM2.5x8CS

Description

Aluminum Washout Guide( 剪型臂导柱)

M3x4 Socket Head Set Screw( 无头内六角螺丝)

10mm Main Shaft( 主轴)

M4 Lock-nut(M4 螺母)

M4x22 Cap Screws( 杯头内六角螺丝)

Cap Screw(杯头内六角螺丝)M2.5x8

Page 11

1

1

1

2

Qty

1

2


BAG 1

Slide the washout guide and the rotor head onto the main shaft. Insert the M3X18 shoulder socket cap screw through the rotor head hub and main shaft and secure with one

M3 locknut, torque down the screw. Apply

Medium threadlock to the M2.5x8 socket cap screws and tighten into the bottom of the rotor head block to clamp against the main shaft, do not overtorque. Position the washout guide against the collar and align one

3 hole to the vertical slot in the rotor head. Apply Medium threadlock to the M3x4 set screws and evenly tighten set screws in place.

Do not apply CA or thread lock to lock nut

Radikal Gasser

Do not over-tighten!

6

4

5

2

1

CNM3x4SS

CNM2.5x8CS

CNM3x18CS

CNM3LOCK

Page 12

No.

1

2

3

4

5

6

Part #

CNM2.5x8CS

CNM3x18CS

CNM3LOCK

HW3053B

CNM3x4SS

HI6153

Description


Cap Screw(杯头内六角螺丝)M3x18

M3 Locknut(防松螺母)

Main Shaft(主旋翼轴)

Set Screw(无头内六角螺丝)M3x4

CNC Washout Guide(剪型臂滑座)

1

1

2

1

Qty

2

1

WASHOUT AND SWASHPLATE

BAG 1

1

2

4

3

5

6

7

8

9

10

Comes pre-assembled

It is up to you to determine whether this assembly is correct. Please make sure to check it prior to installation.

10

11

12

7

8

5

6

9

2

3

4

No.

1

Part #

HI3152A

CNLR1014

HW6205

CNBB0730

HI3152A

HI3152A

CNLR1021

HW6146C

Washout Set (10mm) (

Description

摆臂

M3 Ball Link(M3球头螺丝)

)

3x5x3 Bellcrank Spacer(铜套)

3x7x3 Bearing(轴承)

Radius Link w/ Pin(插销)

Radius Link w/ Pin(三角控制臂)

Washout Set (控制臂固定座)

HI3152C

CNLR1003

CNM3x16BHCS

CNLR1014

3x5x0.5 Micro Washer(垫圈)

M3x16 Button Head Cap Screws(圆头内六角螺丝 )


M3 Ball Link L=18MM(M3球头螺丝)

Radikal Swashplate(十字盘)

Qty

2

4

2

2

2

2

1

2

2

4

2

1

Starting with the inside race, apply Medium threadlock to the silver steel balls and attach them across from each other. The balls need to be started by hand then tightened with an M2.0 hex key. Insert the other two steel balls across from each other using

Medium threadlock. Install three long steel balls on the outer arms using Slow Cyanoacrylate glue.

Radikal Gasser

M3 L=7.8MM CNLR1014

M3X5X3 HW6205

CNBB0730

M10x12x5 HI3152C

M3x5x0.5 CNLR1003

CNM3x16BHCS

M3 L=18MM

Ø2x12

11

12

10

Page 13

WASHOUT AND SWASHPLATE (LT VERSION)

BAG 1

Radikal Gasser

8

4

3

2

10

11

12

5

6

9

7

Comes pre-assembled

It is up to you to determine whether this assembly is correct. Please make sure to check it prior to installation.

Starting with the inside race, apply Medium threadlock to the silver steel balls and attach them across from each other. The balls need to be started by hand then tightened with an

M2.0 hex key. Insert the other two steel balls across from each other using Medium threadlock. Install three long steel balls on the outer arms using Slow Cyanoacrylate glue.

M3 L=7.8MM CNLR1014

M3X5X3 HW6205

CNBB0730

No.

1

6

7

8

4

5

2

3

9

10

11

12

Part #

HI3152A

CNLR1014

HW6205

CNBB0730

HI3152A

HI3152A

HI3152C

CNLR1003

CNM3x16BHCS

CNLR1014

CNLR1021

HW6146C

Description

Washout Set (10mm) ( 摆臂 )


3x5x3 Bellcrank Spacer(铜套)

3x7x3 Bearing(轴承)

Radius Link w/ Pin(插销)

Radius Link w/ Pin(三角控制臂)

Washout Set (控制臂固定座)

3x5x0.5 Micro Washer(垫圈)

M3x16 Button Head Cap Screws(圆头内六角螺丝 )


M3 Ball Link L=18MM(M3球头螺丝)

Radikal Swashplate(十字盘)

Qty

2

4

2

2

2

2

1

2

2

4

2

1

Page 14

M10x12x5 HI3152C

M3x5x0.5 CNLR1003

CNM3x16BHCS

M3 L=18MM

Ø2x12

1

HEAD PUSHROD LENGTHS (HD VERSION)

BAG 1

A

1

2

Radikal Gasser

C

5

3

4

B

A

B

C

25.5

14

43

25

95

75

DRAWN TO A SCALE OF

1-TO-1. YOU CAN MATCH

YOUR LINKS UP TO THIS

PAGE FOR PROPER MEA-

SUREMENTS.

HELPFUL TOOL:

PART# CN2219A: BALL LINK

EASY DRIVER




HEL PFUL TOOL

PART# CN2255: CONTROL ROD SETUP GAUGE

Page 15

No.

1

2

3

4

5

Part #

HI6145

HW6192A

HI6145

HW6192A

HW6192A

Description

Ball Link Set (26 Long, 4 Short)( 球头连接杆)

Pushrod Set( 连杆)

Ball Link Set (26 Long, 4 Short)(球头连接杆 )



Qty

4

2

8

2

2

HEAD PUSHROD LENGTHS (LT VERSION)

BAG 1




Radikal Gasser

25

14

43

25

4

A

5

HELPFUL TOOL:


EASY DRIVER

DRAWN TO A SCALE OF

1-TO-1. YOU CAN MATCH

YOUR LINKS UP TO THIS

PAGE FOR PROPER MEA-

SUREMENTS.

3

C

94

75

2

B

HEL PFUL TOOL


Page 16

1

2

3

4

5

No.

Part #

HI6145

HW3192A

HW6192

HI6145

HW6192

Ball Link(塑胶球头连接头)

Pushrod(连杆)L=80MM


Short Ball Link( 短塑胶球头连接头)


Description

1

Qty

8

2

2

4

2

SKELETAL SUPPORT BRACES

6

This bearing is already pressed into the bearing block.

5

4

3

9

8

7

Radikal Gasser

BAG 2

COMES

PRE-ASSEMBLED

10

11

2

1

CNM2.5x6FHCS

CNM3x10FHCS

CNM3x12BHCS

Ø2X24

12

CNBB1022

No.

1

Part #

HW6117G20

Description

Landing Gear Frame( 引擎座底板)

Qty

1

2

3

4

5

6

7

8

9

CNM3x10FHCS

HW6119

HW6042G

CNM3x12BHCS

CNBB1022

HI6032G

HI6032G

Flush Head Cap Screws( 斜头内六角螺丝)M3x10

Box Frame Support( 机身加强支架)

Lower Main Shaft Bearing Block(主轴下轴承座)

Button Head Cap Screw( 圆头内六角螺丝)M3x12

Bearing(滚珠轴承

) 10X22X5

A-Arm Base(A 型控制臂座)

Pin(插销)Ø2x24

A-Arm(A型控制臂)

2

2

1

1

1

2

1

HI6032G 1

10

11

CNM2.5x6FHCS

HI6113

Flush Head Cap Screws( 斜头内六角螺丝)M2.5x6

Electronics Plate(电子点火固定板)

2

1

12

HW6113S

Aluminum Post( 铝柱) 1

If you have carbon fiber frames, just add a “C” to the end of the frame part number.

Page 17

REAR SIDEFRAME (LEFT)

BAG 2

Flanged bearing is already pressed into frames. Make sure the flange is facing inwards.

This bearing is already pressed into the bearing block.

3

5

4

Dry fit the electronics tray built from the previous page into the left rear sideframe prior to mounting onto the skeletal support frame assembly.

Once done, install the M3x8 button head cap screws as shown. Apply medium threadlock to all the screws.

6

Radikal Gasser

1

2

CNBB1019

CNM3x8BHCS

No.

Part #

Description Qty

1

4

5

2

3

HI6116L

CNM3x8BHCS

CNBB1019

HW6042GU

Main Frames( 左右后侧板)



Upper Bearing Block( 主轴上轴承座)

2

8

2

1

1 CNM3x6BHCS Button Head Cap Screw( 圆头内六角螺丝)M3x6

6

CNBB1019 Bearing(滚珠轴承)10x19x5

1


Page 18

FUEL TANK

BAG 2

Radikal Gasser

9

Pay close attention when assembling the fuel tank.

The vent tube must be bent and facing upwards when installed into the rubber stopper. There are 3 holes on the rubber stopper but notice only 2 are through holes. Cut the fuel line and attach the clunk to the line. Then attach the fuel line to the short brass tube.

When cutting the fuel line, make sure you have enough slack in the fuel line so the clunk can reach all corners of the fuel tank. After installing the shorter brass tube with the fuel line, install the vent tube. Make sure the vent tube is positioned to point upwards in the fuel tank. Once you have everything positioned, slowly turn the M3.5x24 Phillips screw so that you barely grab the end of the small cap (#4). Once you insert the fuel tubing assembly into the tank, it will be very difficult to get this small cap out if you happen to drop it within the fuel tank. Making sure you still have the small cap (#4) attached to the fuel tubing assembly, push the fuel tubing assembly into the tank and start tightening the Phillips screw. This will pull the small cap (#4) closer to the large cap (#2) and expand the rubber stopper. Once tightened, gently tug on the assembly to make sure it is properly installed. It should not come out of the fuel tank.

Bend one of the longer brass tubes into this shape. This will be the vent tube.

7

6

3

4

5

1

2

HI6139A: Fuel Tank Fittings Set Only

8

CNM3.5x24ST

No.

1

2

3

4

5

6

7

8

9

Part #

HI6139

HI6139

HI6139

HI6139

HI6139

HI6139

HI6139

HI6139

HI6139

Description

Tapping Screw( 十字紧固螺丝)M3.5x24

Large Cap(油箱盖)

Rubber Stoper( 油箱塞)

Small Cap(油箱塞固定座)

Long Tube-straight( 长直铜油管)

Pickup Tube-straight(短直铜油管)

Fuel Tubing( 塑胶油管)

Fuel Tank Set( 吸油嘴)

Fuel Tank(油箱)

Page 19

Qty

1

1

1

1

1

1

1

1

1

REAR SIDEFRAME (RIGHT)

BAG 2

12

Radikal Gasser

When installing the elevator bellcrank, make sure to apply medium

CA to the M3x12 button head cap screw.

8

7

3

2

1

2

11

9

10

5

6

4

Assemble the aileron bellcranks by first pressing in the 3x7x3 bearing followed by the 3x5x7.5 spacer. Install the remaining bearing along with the metal balls. It is easier to thread the M3 linkage balls into the plastic bell cranks if you use an available M3 screw to make threads. Apply medium CA to the linkage balls. Once you have the aileron bell cranks built, install the right rear frame and apply medium threadlock to the M3x8 button head screws and tighten onto the skeletal support frame. Apply medium threadlock to the M3x25 button head cap screws and install the aileron bell cranks onto the aluminum post.

14

13

CA

CNBB812F

3x8x3.5

CNM3x12BHCS

CNM3x8BHCS

CNLR1014

CNBB0730

CNM3x25BHCS

No.

1

2

3

4

5

6

7

8

9

Part #

CNM3x25BHCS

CNLR1014

CNBB0730

HI6031G

HI6031G

HI6031G

HW6125B

CNBB812F

CNM3x8BHCS

Description


M3 Linkage Ball( 球头螺丝)


Bell Crank(左右控制臂)

Bellcrank Spacer( 垫片)3x5x7.5

Bellcrank Spacer( 垫片)3x8x3.5

Qty

2

8

4

2

2

2

2

Canopy Standoff( 机头罩支架)

Elevator Lever Flange Bearing( 带边滚珠轴承)


2

10

10

11

12

13

HI6031S

CNM3x12BHCS

HI6032GB

HI6139B

Aluminum Post( 铝柱)


Elevator Bellcrank(控制臂)

Fuel Tank Isolators(油箱橡胶垫)

1

2

1

2

14

HI6116R

左右后侧板 ) 1


Page 20

CLUTCHBELL ASSEMBLY

BAG 2

6

4

3

2

1

5

Radikal Gasser

CNBB1015

CNM4x4SS

CNBB513

CNBB1524

CNBB511

8

7

4

The Radikal uses the regular starting shaft and hex coupler as to align the clutch to the clutchbell. Clean both the starting shaft and the inside race of the bearing inside the clutchbell and the inside race of the top starting shaft bearing. Apply a small amount of Red threadlock positioned just above where the bottom clutchbell bearing will sit on the starting shaft. Slide the starting shaft up through the bearing blocks.

Apply a small amount of medium threadlock to the top of the starting shaft and slide the hex coupler in place aligning the flat spot with one of the holes. Apply medium threadlock to the two M4x4 set screws and tighten in place.

9

10

11

Clean the top of the pinion gear and the inside surfaces of both the upper and lower bearings inside the clutch shaft bearing block using alcohol.

Apply a small amount of Red threadlock to the top edge of the clutch gear where it will contact the bearing. Press the bearing block in place, firmly seating the bearing against the top of the pinion gear.

1

2

3

4

5

6

9

10

11

7

7

8

No.

Part #

CNM4x4SS

HW6002

CNBB513

HW6007G

HW6007GS

CNBB1015

HW6043A

HW6043B

CNBB1524

HW6013G

CNBB511

HW6006

Description


6mm Hex Coupler(六角启动头)


Bearing Block( 轴承座)

Long Hex Spacers( 六角铝柱)L=52MM


Alloy Drive Gear 14T For LT Version(合金传动齿轮)

Alloy Drive Gear 16T For HD Version(合金传动齿轮)


Clutch Bell Assembly( 离合器罩)


Starting Shaft( 启动轴)

Qty

1

2

4

2

1

1

1

1

1

1

1

1

Page 21

ZENOAH 20CC ENGINE PREPARATION

Radikal Gasser

It is not so apparent how the propeller hub is attached to the engine.

A 13mm lock nut is supplied in the kit to aid in the removal of the propeller hub.

First undo the nut and remove the propeller washer. Screw down the original nut onto the stud followed by the locknut.

Install the supplied 13mm locknut and tighten down onto the shaft. Tighten down on the top lock nut while applying opposite force (unscrewing) to the second nut using the Zenoah supplied wrench.

This will allow you to lock the nuts together.

Because you have no use for the propeller hub, you can use a wrench or vice to grab onto the hub while trying to undo the stud. Grabbing onto this aluminum hub may damage the hub but it’s of no use in this build. Once this stud is loosened, you can remove the propeller hub.

Remove the stud and hand tighten it a few threads into the crank.

With the propeller hub still in the vice, gently tap on the head of the stud with a hammer while supporting the engine with your other hand. This will loosen the hub from the crank shaft.

MAKE SURE NOT TO LOSE THIS KEY! It is very important to retain this key for the following steps. Without this key, you cannot mount your fan and clutch assembly. After you have removed the hub, remove the bottom plate and flush head cap screws. Set these aside as you will not be needing them for the rest of the build.

Page 22

CLUTCHSHOE AND FAN ASSEMBLY

BAG 3

Radikal Gasser

2

1

Bearing is pre-installed

7

3

8

4

5

6

Install the clutch temporarily and do a dry fitment into your clutch bell that is mounted to your frames. If your clutch shoe is sitting outside the clutch bell when your engine is mounted to your frames, you will most likely need 2 clutch shims.

9

10

15

16

17

Do not overtighten

14

6.5x13x1

13

6.5x13x1

CNM2.5x8CS

CNM4x10FHCS

CNM3x6FHCS

CNM6x16CS

CNLR1018

CNM3x4SS

11

12

The hex starting system is a regular replacement part and will wear due to normal use. The pull start option is a better alternative to starting the helicopter.

You can use a pull start for the first start of the day. Afterwards using a heavy duty electric starter is possible.

Do not overtighten

Lay the cooling fan shroud mount plate onto the face of the engine with the straight edge towards the cylinder head and the access hole on the muffler side.

No.

1

13

14

15

16

17

9

10

11

12

6

7

8

4

5

2

3

Part #

HI6020G

CN2263K

HW6011G

HW6011GS

CNM6x16CS

CNM6.5X13FW

HI6009GBKH

HI6009GBK

HI6009GM

CNM3x6FHCS

HW6118W

CNM2.5x8CS

CNM4x10FHCS

ZENE20EIN

HW6192B

CNM3x4SS

CNLR1018

Description

Plastic Cooling Shroud( 风扇罩)

Auto Hub Assembly(8mm)( 单向轴承)

Clutch Shoe(离合器)

Clutch Shim(垫片 )20x22x0.5


Washer(垫片)6.5x13x1

Cooling Fan Hub(风扇座)

Cooling Fan(风扇)

Magnet(磁铁)


Cooling Shroud Mount Plate( 挡风板)



Engine(引擎)

OT INCLUDED

Carburetor Arm( 化油器控制臂)

Set Screw(无头内六角螺丝)M3X4

Ultra Short Steel Ball( 球头螺丝)

Page 23

Qty

1

1

1

1

1

1

1

1

2

1

1

4

1

1

4

1

3

EFI PICK UP

BAG 2

Radikal Gasser

3

1

Mount the plate onto the engine first and tighten the M4x10 Flush Head Cap Screws.

After you have installed the plate, then install the sensor. The sensor can be adjusted slightly to advance or retard timing.

2

6

4 5

CNM4x10FHCS

CNM2.5x8CS

2.5x4x4

Page 24

2

3

4

5

6

No.

1

Part #

HI6010

Not Included

CNM4x10FHCS

HI6010

CNLR1003

CNM2.5x8CS

Description

Sensor Adaptor Board( 感应器固定板)

Sensor(感应器)


Copper Sleeve( 铜套)2.5x4x4

Washer(垫片)3x5x0.5


Qty

1

1

2

2

2

2

ELECTRONICS TRAYS

BAG 3

Radikal Gasser

5

2

1

7

6

4

3

Start by installing the four M2.5x6 flush head cap screws into the lower electronics tray by using medium threadlock. Use the M3x30 Phillips tapping screws to mount the canopy hook.

Do not overtighten this as you can strip the plastic.

Next apply medium threadlock to the remaining four M2.5x6 flush head cap screws and install them into the upper electronics tray. Tighten to the frame support bars.

CNM2.5x6FHCS

CNM3x30ST

No.

1

2

3

4

5

6

Part #

CNM2.5x6FHCS

HW6113A

Description

Flush Head Cap Screws( 斜头内六角螺丝)M2.5x6

Upper Electronics Tray( 变速器固定板)

Frame Support Bar( 铝柱)

Qty

8

1

HW6113AS

HI6113B

CNM3x30ST

HI3129

HI3129

Lower Electronics Tray( 接收机固定板)

M3x30 Phillips Tapping Screws( 自攻螺丝)

Canopy Mount Spacer ( 机头罩扣座)

Canopy Mount Hook( 机头罩扣)

2

1

1

4

1

7


Page 25

FRONT SIDE FRAMES

BAG 3

2

1

Radikal Gasser

Make sure when fitting the electronics trays that you have a complete mating with the upper side frames. If the keys do not fit into the slots on the upper side frames and you tighten down on the screws, your frame will be crooked.

Apply medium threadlock to the eight M3x8 button head cap screws and tighten down.

CNM3x8BHCS

No.

1

Part #

HI6115GL

Front Frames ( 前侧板)

Description Qty

2

2 CNM3x8BHCS


8


Page 26

MOUNTING MOTOR

BAG 2

Radikal Gasser

1

1

2

Loosely fit the CNM4X10 cap screws that hold the engine on the plate. Then line up the bearing assembly in the upper portion of the frames. Keep this loose for now until you are ready to mesh the pinion gear with the main gear.

CNM3x8BHCS

CNM4x10CS

Page 27

No.

1

2

Part #

CNM3x8BHCS

CNM4x10CS

Description



Qty

6

4

ATTACHING FRONT FRAME ASSEMBLY

BAG 2

Radikal Gasser

When mounting the front frames to the rear frames, make sure the keyed split matches up properly prior to tightening the eight M3x8 button head cap screws. This is very important as you can warp the frames if it’s not set in place when tightening down.

Prior to installing the eight M3x8 button head cap screws, be sure to use medium threadlock.

1

CNM3x8BHCS

No.

1

Part #

CNM3x8BHCS

Description


Page 28

Qty

8

LANDING GEAR

LANDING GEAR PACKAGE

Radikal Gasser

CNM3x4SS

CNM3x16CS

3x8x1

1

4

3

5

2

6

Install the landing skids onto the landing struts one side at a time. After installing the landing skids, position, the landing struts on the skids so that they match up with the mounting positions on the frames. Place the washers onto the M3x16 cap screws and then apply medium threadlock. Install the screws through the landing struts and tighten onto the frames. Turn the landing skids so that the curve towards the front is facing straight up. Make sure you have approximately 28mm of skid showing out the back. Install the four M3x4 set screws to lock the skids into place. Do not tighten these too much as you can crack the plastic struts. Lastly, install the landing skid stoppers.

Page 29

No.

1

Part #

HI3122A

2

3

HW3123A

CNM3x16CS

4

5

CNM3x8FW

CNM3x4SS

6 HW3123A

Description

Plastic Struts( 脚架)

Aluminum Skids( 脚架弯管)


M3x8x1 Flat Washers( 垫片)


Landing Skids Stopper(脚架塞)

Qty

2

2

4

4

4

4

MAIN GEAR ASSEMBLY

BAG 3

Radikal Gasser

1

Apply medium threadlock to the four

M3x6 flush head cap screws and install through the tail drive gear tightening onto the driven tail hub. Apply medium threadlock to the six M3x8 flush head cap screws and install onto the main gear with the auto-rotation one way bearing. Make sure the flush head cap screws are installed onto the concave beveled side of the screw holes on the main gear.

5

4

2

3

Be sure to clean the inside and outside of the main shaft sleeve with alcohol prior to installation.

7

6

For the roller bearings, we recommend a very light oil. The oil MUST-

NOT attack/break down plastic as this could damage the cage in the one-way bearing. Prior to applying oil, make sure to clean the roller bearings with a cotton swab making sure there is no debris in the bearings.

CNM3x6FHCS

CNM3x8FHCS

Page 30

No.

1

4

5

6

2

3

7

Part #

HW6057A

HI6057

CNM3x6FHCS

HW6057C

CNM3x8FHCS

HI6057C

HW6057D

Description

Driven Tail Hub( 传动主齿轮座)

Tail Drive Gear(传动主齿轮)


Main Shaft Sleeve(主齿轮铁套)


Main Gear 90T

(斜齿轮)

One-way Bearing( 单向轴承座)

Qty

1

1

4

1

6

1

1

ATTACHING HEAD AND MAIN GEAR

Radikal Gasser

BAG 3

4

3

1

2

6

5

4

CNM4x4SS

CNM2.5x8CS

Ø3x23.7

10x18x1

CNBB1018T

Apply grease to the thrust bearing. Place the Main Gear assembly into the frames. Insert the main shaft with head assembly through the bearing blocks while lining up the thrust bearing, and mast stopper while going through the Main Gear assembly. Line up the whole in the Main Shaft with the hole on the Driven Tail Hub. With the help of needle nose pliers or hemostats, place the Pin (#5) through while making sure you have it going through the Main Shaft. Install the 2 M4x4 set screws making sure you have them evenly threaded on both sides. When installing the

Mast Stopper (#3), make sure it is pushed up to the top prior to tightening the M2.5x8 Cap Screw.

No.

1

2

3

4

5

6

Material No.

CNBB1018T

CNM2.5X8CS

HW6054

CNM4x4SS

HW6057AS

HW6057DS

Description

Thrust Bearing( 止推轴承)10x18x5.5


Mast Stopper( 主轴限位块)


Pin(插销)Ø3x23.7

Copper Washer( 铜垫片)10x18x1

Qty

1

1

1

2

1

1

Page 31

TAIL BOOM COMPONENTS

BAG 4

When installing all the hardware onto the boom, make sure you do so prior to installing the tail gearbox. Otherwise you will not be able to once your tail gearbox is mounted. Do not apply the zip ties until the very end when you are sure of the positions of the tail control rod guides. When building the tail control rod, make sure to place the control rod through the guides prior to installing the ends.

17

Do not install the horizontal fin until you have tightened the tail boom supports and horizontal fin mount. It is best to install the horizontal fin towards the end of your build.

16

18

19

1

INCLUDED

CNM3x10CS

CNM2.3x12ST

CNLR1013

M2 CNLR1018

CNM3x14BHCS

CNM2x8PH

CNM3x8ST

CNM3x8BHCS

M3 CNM3LOCK

2

3

20

21

14

Radikal Gasser

13

11

12

9

10

15

8

4

5

6

7

No.

1

4

5

6

2

3

Part #

HI6080B

CNM3x10CS

NOT INCLUDED

NOT INCLUDED

NOT INCLUDED

Description

Tail Servo Mount( 尾翼伺服机座)


Servo(伺服机)

Copper Rivet( 铜铆钉)

Anti-Vibration Pad(防震胶垫)

Qty

7

8

9

HI3205A

Servo Mounting Plate( 伺服机固定板)

Self Tapping Screws( 尖尾自攻螺丝)M2.3x12

CNM2.3x12ST

CNLR1013

CNLR1018

Steel Ball 2mm Thread(m2 球头螺丝)

M2 Hex Nuts(m2 六角螺母)

10

11

12

13

14

15

16

HI6106B

HI6068A

CNM3x14BHCS

CNE543

CNM2x8PH

CNE543

HW3202C

Adjustable Tail Guides( 尾拉杆固定座)

Horizontal Fin Mount( 水平翼固定座)


Tail Boom Support Strut End( 连杆头)

Phillips Screw( 圆头十字螺丝)M2x8

Tail Control Rod( 尾舵控制连杆)

Tail Boom Support Struts( 尾支撑杆)

1

1

1

2

2

1

2

17

18

19

20

CNM3x8ST

HI6106B

CNM3LOCK

CNM3x8BHCS

HI6067GH

Self Tapping Screws( 尖尾自攻螺丝)M3x8

Zip Tie( 扎带)

M3 Lockmut(M3 螺母)


2

1

1

2

1

21 Horizontal Fin( 水平翼)


Page 32

2

4

1

2

2

2

2

2

2

TAIL GEARBOX

BAG 4

15

Make sure to install this first before clamping the tail gearbox together.

16

14

The taller lip should face outwards.

13

19

20

21

17

18

12

22

11

10

Radikal Gasser

When pressing the bearing retainers into the tail gear box plate, make sure you are pressing it into the correct side. The left and right side are different. If you do not do this, it will be difficult to remove this pieces once it’s pressed in.

9

8

7

6

5

24

4

3

When clamping the tail gearbox to the boom, make sure the tail boom retainers are properly keyed to the slots on the tail boom. After clamping, approximately 3mm of the tail boom should be visible.

23

2

CNM3x6BHCS

CNM3x8BHCS

CNM2.5x8CS

5x7x3.5

5x7x6.5

M3 CNM3LOCK

Ø2x12

CNBB1350

L=26MM

Ø5x27

CNM3x40CS

5x7x12

CNBB38

CNM3x4SS

1

No.

1

Part #

HI6067GV

2

3

4

5

6

CNM3x8BHCS

CNM3x40CS

CNM2.5x8CS

HI6078H

7

8

9

10

11

12

CNBB1350

HW6073B

CNE529

CNE529

HW6073B

13

14

15

16

17

HW6078TP

HW6073B

HI6078H

HW6078TP

CNM3LOCK

HI6078B

18

19

20

HI6078B

HI6078B

CNM3x6BHCS

21

22

23

24

HI6078P

HI6078P

HI6078P

HI6631

CNM3x4SS

Description

Vertical Fin(垂直翼)




Bearing Units( 轴承套)


Spacer Units( 铝套)M5x7x6.5

Lock Pin(插销)Ø2x12

Tail Gear(尾皮带轮)

Tail Output Shaft(尾翼轴)

Threaded Spacer( 铝柱)Ø5x27

Spacer Units( 铝套)5x7x3.5

Tail Gearbox Bearing Retainer(双轴承套)

Tail Gear Box Plate-Right(尾齿轮箱夹片)

M3 Locknut(M3螺母)

Tail Pitch Bellcrank "L" Arm(L臂)

Tail Gear Box( 尾齿轮箱)

Short Threaded Hex Spacer( 六角铝柱)L=26mm


Spacer ( 铝套)3x5x12


Tail Belt Tensioner Pulley( 皮带压轮)

Tail Belt(皮带)



Page 33

Qty

1

8

1

1

1

3

1

1

1

1

1

1

1

1

1

2

1

2

4

1

1

1

1

1

TAIL ROTOR ASSEMBLY

BAG 4

Comes pre-assembled.

Radikal Gasser

3

14

13

11

8

12

10

Face flat side of tail hub towards the gear box.

9

Starting with the tail rotor assembly, press the

4x10x4 (#11) bearing into the tail blade grip. Grease the thrust bearings prior to installation. Making sure the open ball end is facing the tail hub, place the thrust bearing assembly into the tail blade grip followed by the 3x5x0.5 micro washer. Install the 3x9x2.5 (#4) bearing and then tighten the assembly with the M3 locknut.

6

5

4

3

2

No.

Part #

1

2

3

4

8

9

10

5

6

7

11

12

13

14

15

16

17

18

HI6099A

HW6204

CNM3LOCK

CNBB0930

CNLR1003

CNBB49T

CNM3x16BHCS

CNM3x18CS

HI6096A

CNLR1013

CNBB410

HW3098A

CNM3x4SS

HI3087B

CNLR1019

CNBB37F

HI6102

HI6102

Description

Tail Rotor Blades(尾旋翼)

Micro Washer( 垫片)3x10x1.5

M3 Locknut(M3 螺母)

Bearing(滚珠轴承)3x9x2.5


Thrust Ball(止推轴承)d4xD9x4



Tail Rotor Grip( 尾旋翼夹片)

Steel ball 2mm Thread(m2 球头螺丝)


Steel Tail Rotor( 尾旋翼中心座)


Tail Pitch Plate(尾翼控制臂组)

M3 Linkage Ball( 球头螺丝) L=13MM

Flange Bearing( 带边滚珠轴承)3x7x3

Bellcrank Spacer( 铁套)3x5x2

Tail Bellcrank Lever( 尾控制臂)

1

1

2

1

1

2

1

1

2

2

2

2

2

Qty

2

4

3

2

3

Page 34

7

1

16

M3 CNM3LOCK

CNBB0930

3x5x0.5

18

15

Slide one M3x18 special socket cap screw from the inside of the

17 tail rotor grip and position the first

M3x10x1.5 spacer, insert the tail blade, another spacer and secure using one M3 locknut from the molded recess on the outside.

When correctly installed, the leading edge of the tail rotor blades will rotate into the down wash from the main rotor blades.

Tail blade tension should be set tight enough that the rotor blade will stay straight on its own, but will pivot easily when the blade tip is moved.

After flying the model, if a vibration is noticed on the vertical fin, the complete tail rotor assembly can be removed with the hub and further balanced using a High Point balancer.

CNBB410

CNM3x4SS

Ø2x7

CNBB610

CNBB49T

CNM3x12BHCS

CNM3x18CS

CNLR1013

HI3087B

CNLR1019

CNBB37F

3x5x2

3x10x1.5

TRANSMISSION CASE

BAG 4

When orienting the belt the front transmission pulley as viewed from the top should be turning counter-clockwise.

When the belt is twisted as shown below, the rear tail pulley should turn counter clockwise when viewed directly on from the right side of the helicopter.

10

11

9

Radikal Gasser

You may notice the boom and the tail transmission case is scuffed.

This is done during the manufacturing process to ensure a proper grip.

8

13

12

To adjust belt tension, pull forward on the front transmission box and tighten the screws.

The belt should be tight enough that it should not travel past the half way point when pressed down from the back. If it is too tight, you will cause excessive drag.

1

2

3

5

6

7

4

TAIL OUTPUT SHAFT

4x6x0.5 CNLR1006

CNBB410

CNM3x4SS

CNM3x12CS

M3 CNM3LOCK

CNM3x8FHCS

Ø4x30 CNE533

HELICOPTER NOSE

No.

1

Part #

CNLR1006

Description


Qty

2

4

5

2

3

CNBB410

CNE538

CNE533

HI6060B


Transmission Gear( 皮带输入齿轮)

Lock Pin(插销)M4x30

Upper Transmission Case( 尾管夹片)

2

1

1

2

6

7

8

9

10

CNM3x4SS

CNM3x12CS

HW6007GS

CNM3LOCK

HI6117A


Button Head Cap Screw (杯头内六角螺丝)M3x12

Long Hex Spacers( 长六角铝柱)L=52MM

M3 Locknut(M3 螺母)

Head Lock Gyro Plate( 陀螺仪板)

2

4

2

4

1

11 CNM3x8FHCS


2

12

HI6631

Tail Belt Drive( 皮带)

1

Page 35

13

HW6062G Tailboom(尾管)

1


ATTACHING TAIL TO MAIN FRAME

BAG 4

3

Radikal Gasser

2

1

Install the tail assembly onto the main frames by using threadlock on eight the M3x8 button head cap screws. Make sure to install two screws opposite of each other on either side and tighten down making sure the transmission gear is properly meshed with the tail drive gear. If you are unsure about proper gear mesh, use a strip of paper slightly taller than the tail drive gear and pass it between the gears as you spin the tail drive gear. As the paper passes through from one side of the frames to the other, a nice zig-zagged pattern should develop. If it is a very faint zig-zag pattern or no pattern appears, the gear mesh is too loose. If the paper comes through crushed, the gear mesh is too tight. After the tail assembly is installed on the main frame, install the tail boom braces using the two M3x25 cap screws and boom support posts making sure to apply medium threadlock.

CNM3x8BHCS

CNM3x25CS

Page 36

No.

1

2

3

Part #

CNM3x25CS

HW6202BS

CNM3x8BHCS

Description


Boom Support Posts(铝柱)


Qty

2

2

8

INSTALLING SERVOS

Radikal Gasser

BOLTS BAG

2 3

1

6

4

5

8

7

10

9

A servo arm of approximately

12mm is recommend for the throttle servo.

NOT

INCLUDED

CNM2x8PH

CNLR1014

CNM2.3x12ST

CNLR1013

To secure the servo mounting tabs, the best thing to use is a set of hemostats or needle nose pliers to hold the tab in place while tightening the servo mounting screws. Be sure to use a large enough Phillips screw drive so as to not strip the head of the Phillips tapping screws.

11

Page 37

No.

1

2

3

4

5

6

7

8

9

10

11

Part #

CNM2x6PH

HW6192C

CNLR1014

CNM2.3x12ST

HI3205A

NOT INCLUDED

NOT INCLUDED

NOT INCLUDED

CN2288

CNLR1013

HI3205B

Description

Phillips Screw( 十字螺丝)M2x6

Pitch Compensators(伺服机控制臂)

M3 Linkage Ball( 球头螺丝)

Self Tapping Screws( 尖尾自攻螺丝)M2.3x12

Servo Mounting Plate(伺服机固定板)

Servo(伺服机)

Copper Rivet( 铜铆钉)

Anti-Vibration Pad(防震胶垫)

Metal Servo Arm( 金属伺服机控制臂)

Steel Ball 2mm Thread(M2 球头螺丝)

Servo Mount Tabs( 伺服机固定座)

Qty

8

4

16

6

16

10

3

1

8

8

1

ADJUSTING PUSHROD LENGTHS

Radikal Gasser

BOLTS BAG

3

HELPFUL TOOL:


EASY DRIVER

72.2

55

4




5

93.6

76.4

HEL PFUL TOOL


Page 38

No.

1

2

3

4

5

Part #

HI6145

HW6192D

HW6192D

HW6192D

HW6192D

Description

Ball Link(塑胶球头连接头)





Qty

18

4

2

2

1

2

1

ATTACHING MUFFLER

Shown is the optional Torpedo Slim Tuned Gasser Muffler. This is not included in your kit.

When installing the bolts to hold the muffler, automotive Goop® can be used as a threadlocking adhesive. This will keep the bolts in place. Another suggestion is to bring the engine to operating temperatures and then re-torque the M5 bolts holding the muffler in place.

Radikal Gasser

NO!

1

2

If you purchased a Zenoah G20 engine, the engine package should include the stock black box muffler.

This muffler can be used however, if installed without any modifications, it is

VERY DANGEROUS as the muffler tip is pointed directly at the fuel tank. DO

NOT USE IT THIS WAY! If you choose to use the stock muffler, you will need to deflect the muffler tip downwards and away from any components that can be affected by heat. It is highly recommended to purchase a muffler such as the Torpedo Slim (CN3070) or equivalent.

INCLUDED

YES

CNM5x20CS

Page 39

No.

1

2

Part #

CNM5x20CS

CN3071

Description


(Comes With Muffler)

Torpedo Slim Gas Muffler(排气管)

(Optional)

Qty

2

1

INSTALLING ELECTRONICS

INCLUDED

4

3

2

1

Radikal Gasser

INCLUDED

2

6

INCLUDED

5

The electronics configuration is shown as an example of how to mount the electronics. It is not necessary to mount your electronics this way.

Page 40

No.

1

2

3

4

5

6

Part #

NOT INCLUDED

NOT INCLUDED

NOT INCLUDED

NOT INCLUDED

NOT INCLUDED

NOT INCLUDED

Description

Receiver(接收机)

Receiver Battery( 电池)

Gyro Isolation Foam( 防震垫片)

Gyro(佗螺仪)

On/Off Switch( 开关)

Electronic Ignition( 电子点火)

Qty

1

2

1

1

1

1

CANOPY

Radikal Gasser

1

2

3

4

It will be necessary to cut the windshield out from the mold.

It is recommended to use curved hobby scissors for this process. If the lines are not smooth, you can use 200 grit sandpaper to sand the edges.

Prior to making the holes for the canopy chin mount, you should mount your canopy to the mechanics making sure any linkages, servos, etc...are not touching the canopy. It may be necessary to cut the canopy to avoid binding these linkages. Also, make sure your muffler is not touching the canopy as the canopy will melt.

CNM3x6ST

CNM2x5ST

5

6

When drilling the holes into the canopy for the grommets, do not oversize these holes. If you do this, the grommets will not stay in place. If you have a hard time mounting the grommets onto the canopy standoffs, you can use a dab of oil.

Apply the decals as shown. If you need a better reference, the box cover is also a good image to follow.

Page 41

No.

1

2

3

4

5

6

7

Part #

HI6133G

CNM2x5ST

HI6130G

CN2210A

CNM3x6ST

HI3129C

HI6131G

Description

Tinted Windshield( 透明罩)

Screw(螺丝)

Canopy( 机头)

Canopy Grommets( 橡皮环)

M3x6 Phillips Tapping Screws( 尖尾螺丝)

Canopy Mount(机头固定座)

Decal Sheet

Qty

1

2

2

1

1

1

6

MOUNTING MAIN BLADES

1

2

3

Radikal Gasser

INCLUDED

If using wood blades, make sure the blade roots are glued with a medium CA or epoxy. Make sure you’re glueing onto the wooden part of the blade and not directly onto plastic covering of the blades. If the plastic covering is in place and contacting the plastic blade roots, make sure to cut this away prior to glueing.

It is recommended to fly this model with carbon fiber blades however, when flying with wooden blades, make sure to keep the head speed below 1850RPM.

CNM4LOCK

4

Optional Blades:

CN266001 RotorTech® 600mm Blades

CN266166C RotorTech® 610mm Blades

CN266266C RotorTech® 620mm Wide Cord Blades

CN266466C RotorTech® 640mm Wide Cord Blades

CN2342 AeroTech 620mm Wide Cord Wood Blades

CN2343 AeroTech 640mm Wide Cord Wood Blades

CNM4X30CS

No.

Part #

Description Qty

1 CNM4x30CS Cap Screw(杯头内六角螺丝)M4x30

2

2

CNM4LOCK M4 Locknut(M4 螺母)

3

4

NOT INCLUDED

HI6139

Rotorblades(螺旋桨)

Gas Fuel Line(油管)

If you have the HD head, the main blade screw and bolt are going to be M5 parts.

2

2

1

Congratulations on finishing the build of the Radikal G20 helicopter.

Please follow your instruction manual on setting up your transmitter and gyro systems. Also it is very important that you follow the instructions included with the Zenoah G20 engine for the break in process and finally tuning the engine. If the steps are not followed your engine will not perform at it’s optimal levels.

Page 42

PERSONAL BUILD NOTES

Radikal Gasser

Page 43

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