Scale Mechanics Mechanics Instruction Manual 2 Table of Contents Table of Contents ..... 2...

FEATURES☛ ☛ ☛ ☛ ☛ Rotor Head Rigid Style☛ ☛ ☛ ☛ ☛ Starting System Hex Top Start☛ ☛ ☛ ☛ ☛ Mechanics Modular☛ ☛ ☛ ☛ ☛ Fuel Capacity 10 oz.☛☛☛☛☛ Engine Size 32 ~ 50☛☛☛☛☛ Swashplate Composite☛☛☛☛☛ Type ARF & Kit

Century Helicopter ProductsDesigned and Developed in USA

2nd Edition February, 2002

ScaleMechanics

Instruction Manual

2

Table of ContentsTable of Contents ........................................................................................................................................................ 2Introduction ................................................................................................................................................................. 3Required Items for Assembly ...................................................................................................................................... 4Building Guide ......................................................................................................................................................... 5-6

Sub Assembly 1 Main Rotor HeadMain Rotor Head Block & Seesaw Step 1-1, 1-2........................................... 7Bell Mixers, Main Rotor Grips & Feathering Shaft Step 1-3, 1-4........................................... 8Washout Assembly & Swashplate Step 1-5, 1-6........................................... 9

Sub Assembly 2 Main Gear TrainStart Shaft Assembly Step 2-1, 2-2......................................... 10Tail Transmission Output Shaft & Counter Gear Step 2-3, 2-4......................................... 11Main Gear, Main Shaft & Elevator Bellcrank Step 2-5, 2-6......................................... 12

Sub Assembly 3 Main MechanicsUpper Side Frames Step 3-1 ................................................ 13Upper Frame Assembly Step 3-2 ................................................ 14Collective & Aileron Levers Step 3-3 ................................................ 15

Sub Assembly 4 TailboomTail Input Shaft, Tail Pitch Plate & Tail Output Shaft Step 4-1, 4-2, 4-3 ................................. 16Tail Rotor Output Assembly Step 4-4, 4-5......................................... 17Tail Rotor Grips & Tail Pitch Lever Step 4-6, 4-7......................................... 18Tail Guides, Drive Shaft & Tail Gearbox Step 4-8, 4-9......................................... 19

ARF Scale Mechanics Introduction Page...................................................... 20Flybar, Paddles and Flybar Control Arms Step 1-7 ................................................ 20Clutch, Clutch Bell, Fan, Shroud & Engine Mount Step 3-4, 3-5......................................... 21Fuel Tank & Landing Gear Step 3-6, 3-7......................................... 22Lower Frame Assembly Step 3-8 ................................................ 23Servo Frames & Main Mechanic Step 3-9, 3-10 ...................................... 24

Final AssemblyFinal Rotor Head Assembly & Scale Muffler Step 5-1, 5-2......................................... 25Tail Pushrod Guides & Tail Boom Step 5-3, 5-4......................................... 26

Setup and ConfigurationPushrod Setup Step 6-1 ................................................ 27Servo Information Page Page...................................................... 28Rotor Head and Lower Mechanics Linkage Overview Step 6-2, 6-3......................................... 29Aileron & Collective Setup Step 6-4 ................................................ 30Elevator Setup Step 6-5 ................................................ 31Rudder Setup Step 6-6 ................................................ 32Throttle Setup and Main Rotor Blades Step 6-7, 6-8......................................... 33Radio Components & Balancing ............................................................................................................................... 34Gyro Setup & Installation ......................................................................................................................................... 35Final Radio Setup & Blade Pitch Setup ............................................................................................................... 36-37Throttle and Tail Rotor Adjustments ........................................................................................................................ 38Before Flying, Engine Starting and Exhaust Issues ............................................................................................. 39-41Replacement Part List ............................................................................................................................................... 42Optional Parts ....................................................................................................................................................... 43-44

3

Building Instructions for Scale Mechanicsas used with Century’s Scale Helicopters

Introduction

Congratulations on your purchase of Century Helicopter Product's scale RC helicopter model.Whether you have purchased the complete kit version or the pre-painted and ARF mechanics, this isthe beginning of a new breed of Almost Ready to Fly helicopters that are simpler to build, easier tosee and look fantastic. Whether you are just beginning in helicopters, wanting to start in scale or anaccomplished pilot, Century offers a wide selection of helicopters to fulfill your dreams in scale.Century has combined their world class helicopter mechanics with awesome fiberglass fuselagesdesigned to mount directly inside without modifications.

Warning

This radio controlled model is not a toy! It is a precision machine requiring proper assembly andsetup to avoid accidents. It is the responsibility of the owner to operate this product in a safe manneras it can inflict serious injury . It is recommended that if you are in doubt of your abilities, seekassistance from experienced radio control helicopter modelers and associations. As manufacturer,we assume no liability for the use of this product.

Pre-assembly Information

Upon opening the kit, all the major component parts are packaged in numbered bags to correspondto specific sections of the manual, greatly facilitating assembly. Various assemblies have been pre-assembled, only requiring the final assembly and installation of the various sub-assemblies. Thescrews and nuts required for each step are packaged in the same bag as the parts for that step. Becareful not to lose any of the hardware when opening each bag. Care has been taken in filling andpacking of each bag. However mistakes do happen, if there is a parts shortage or any hardwaremissing, please feel free to contact us at:

Century Helicopter Products523 Sinclair Frontage RoadMilpitas, CA 95035 USA

Fax: 408-942-9524www.centuryheli.com

e-mail: [email protected]

4

Necessary Items “Not Included” in the kit.

6 Channel Helicopter Radio or Equivalent.

PG2000 II dual rate piezo gyroCN2018 (or eqivalent)

Remote Glow Adapter CN2222

32-38 Helicopter Engine46-50 Helicopter Engine

*Optional Scale Muffler#CN3058 32-38#CN3059 46-50

Necessary Tools for Assembly and AdjustmentsMain Blade Pitch Gaugew/PaddleGauge#CN2026

Ball LinkPlier#CN2034

15% or 30%Heli Fuel

12Volt Start Battery

12VoltStarter

FuelLine

Eletric or HandFuel Pump

Glow Driver w/Charger

5.5mm & 7mm nut driv-ers, Phillips Screw Driver,3mm & 4mm hex drivers

4 Way Wrench#CN2031

HobbyScissors

Allen Key Set CNBN10946 Hobby Knife

MetricRuler

LocktiteCN2025B

Servo Tape

CN2024TLubrication

Tie-Wraps

Fuel Filter Glow Plug

Whip Antenna

Needle Nose Plier& Cutter Pliers

5

This manual has been written for Century’s 30-50 size scale helicopters which are available inboth kit and ARF versions. This manual covers the full construction of the flying mechanics and works incooperation with the detail manual for the particular scale helicopter you are building.

Modelers who have purchased the ARF assembled scale helicopters will complete the final assemblyalong with the radio setup and configuration as detailed in the 2nd half of this manual. In cases where theinstructions are different, look for the action boxes which describe how to proceed for the particular step.Every attempt has been made to ease the assembly of your kit, at each step where there are complexassemblies, there are detailed drawings, photos and written instructions to walk you through each step.Remember to take a few minutes before each step to carefully examine the instructions in order to be-come familiar with the parts and assembly sequence before beginning that step.

Scale Mechanics Construction Manual

Part#CN2015 Hardened Tip Hex Screw Driver SetPart#CN2026 Pitch Gauge with Paddle Gauge.Part#CN2034 150 Curve Tip Ball link Pliers.Part#CN2052 Main Blade Balancer.Part#CN2054 Special Glow Plug Wrench Set.Part#CN2055 Ball Link Sizing Tool.Part#CN2070 Universal Flybar Lock.Part#CN2155 Piston Locking Tool.Part#CN2219 Ball Link Easy Driver.Part#CN2255 Control Rod Guage.Part#CNWI26555 5.5mm Nut Driver.Part#CNWI26570 7.0mm Nut Driver.

Screwdrivers - Slotted and Phillips head.Long-Nosed Pliers.Allen Wrenches - 1.5mm, 2.0mm, 2.5mm. ( supplied in kit ) + 3.0mmAppropriate Socket Wrench (glow plug wrench for engine shaft nut)Hobby ScissorsDouble Sided Foam Tape ( 1/16" - 3/32" )Foam Rubber ( radio packing )JB Weld ( bond clutch lining )Thread lock liquid (e.g. Locktite)Hobby Grease ( Super Lube )Oil to lubricate sliding shafts (Tri-Flow)

Recommended Tools & Accessories

Symbols used to help assist you in building the kit:

Applyoil

Applythreadlock

SpecialAttention

Full ScaleDrawing

Repeat Stepsas specified

Apply JBWeld

Partiallytighten

PurchasedSeparately

ApplyGrease

Cut awayShadedPortion

HelpfulTip

Hardware Description and Identification: M3x6 = 3x6mm and can refer to screws or ball bearings.

M3x6 Phillips Machine ScrewM - metric3 - diameter6 - length

M3x6 Self Tapping ScrewM - metric3 - diameter6 - length

M3x10 Socket Cap ScrewM - metric3 - diameter6 - length

3x7 Ball BearingM - metric3 - inside6 - outside

The tools and materials listed below arethe minimum needed to build the helicopter:

In addition, the following will make assembly and setupeasier, and prove useful later in your model toolbox:

6

Each of the sub assemblies will apply to all the models but some steps will not. Each scale kit has been packedfor the particular scale model and will not contain some parts that are shown in the manual. For example, somehelicopters use regular skids and strut landing gear which are included for this model type but not included forhelicopters designed to use retractable landing gear.

This scale mechanics manual hasbeen written for the Century’sscale helicopters. We havegeneralize whenever possible butthere are steps that include actionboxes and instructions for aparticular scale model. The scalemodels include:

CN1070 AirwolfCN1070A Airwolf ARFCN1071 Bell 222CN1071A Bell 222 ARFCN1072 Long RangerCN1072A Long Ranger ARF

Metal parts and fasteners generally have an oilresidue coating for protection from rusting. Thisresidue must be removed prior to applying any type ofthreadlocking agent or glue. Using regular householdrubbing alcohol place a few drops on a rag or clothand wrap the fastener and essentially unthread fromyour fingers. A black residue will remain on the cloth,repeat until no further oil residue can be removed. Donot use on ball bearings, these are factory lubricatedand any cleaning can lead to early failure. To preparefor installation, use a dry cloth and clean all metalsurfaces that will be assembled along with the fasten-ers for that step.

In many locations in the assembly, steel ballsneed to be threaded into plastic parts. To makethis an easier task, use an available 3mm socketcap screw with a hex key and tap the threadsahead of time. Steel balls are of two types, onetype requires a 2.0 hex key (med) inserted intothe end of the ball and the other requires a5.5mm open ended wrench to tighten the nut atthe base of the ball. When tightening the steelballs, try not to use regular pliers as they caneasily slip and scratch the surface ball which willcause premature wear to the plastic ball links.

For self tapping screws into plastic parts, again useand available 3mm socket cap screw and tap to adepth of 1/2 the length of the self tapping screw to beused. For extra security on self tapping screws, apply asmall drop of epoxy to the screw threads beforeinserting into the hole. The epoxy will bond to theplastic yet will allow removal of the screw later.

For machine screws, tap the hole ahead of timeusing the screw being used for that step, beingcareful not to strip out the threads as in some parts,the plastic hole has a bottom. When assembling theparts, remember that machine screws can load abearing if overtightened. In these cases carefullytighten the machine screw then back off 1/16th of aturn, or until the component rotates smoothly.

Although the scale helicopters contains components for installing the 30 size engine1, converting to 46 or 50 isas simple and as changing the engine mount and muffler for the engine. The helicopter will fly with the 30 sizeengine but in some models with alot of wooden infrastructure and a full fiberglass enclosure, the larger enginewill improve the model’s performance by compensating for the additional weight and reducing the tendancy tooverheat.

Installing a 30 or 46/50 Engine

1 The Bell 47G II is a 46 ~50 class helicopter and includes the correct engine mount for 46~50 size of helicopter engine.

Building Tips for Assembly

1 Oil Residue

3 Self Tapping Screws 4 Machine Screws

2 Steel Balls

CN1073 Agusta 109CN1073A Agusta 109 ARFCN1074A Bell 47G II ARFCN1075 TwinstarCN1075A Twinstar ARF

7

Sub Assembly 1 Main Rotor Head

Rotor headBlock[HI3160B]

Guide Pins x 22.6x30 mm[HW3170A]

Damper Rubber x 2[HI3181]

STEP 1-1 Rotor Head Block

From parts bag 1: Press theDamper Rubbers and theGuide Pins into the HeadBlock. Apply one drop ofthin CA glue to the pinsafter they are fully seated.Install one M3x10 oilitebearing onto each side ofthe seesaw shaft and insertinto the Head Block.Secure with the two M3x6self tapping screws.

STEP 1-2 Seesaw Assembly

From parts bag 1: Insert one 3x7mm ballbearing into each bearing cup and insert intothe offset plate. Following the numberedorder, thread one M3x6 Button Head Screwand one M3x6 Special ball through the offsetplates into one tie bar. Slide the assembly ontothe seesaw shaft and attach the other tie barfrom the opposite side.

Special Ball x 2[HI3167E]

Completed rotorhead with symetrical

seesaw plates.

3x7 Ball Bearing x 2[CNBB0730]

Tie Bar x 2[HI3167C]

Seesaw Shaft Set[HW3161A]

M3x6 Self TappingScrew x 2

Rotor Headfrom Step 1-1

Bearing Cup x 2[HI3167D]

Optional SESeesawBallBearingsCNBB1030 x 2

Offset Plate x 2[HI3167B]

1

2

3

M3x6 Button HeadScrew x 2[HI3167E]

Take notice of the location of thetwo steel balls on the offset plates.

3

2

CA

42.0Hex

2.0Hex

8

STEP 1-3 Main Blade Grip Assembly

From parts bag 1: Install oneLong Ball and one Short Ballinto the Bell Mixer, insert theslide tube into the bell mixerarm (Note: the oilite bearingsare pre-installed) and secureonto the blade grip with oneM3x16 Socket Cap screw andM3x7 Flat washer. Install twoM5x13 Ball Bearings into eachend of the blade grip assembly.Complete the secondblade grip inexactly thesame way.

Pushrod (I x 2)( see page 27 forfull size drawing)

Long Ball

5x13 BallBearing x 2[CNBB1350]

Main RotorBlade Grip[HI3184]

M3x7 FlatWasher

M3x16 SocketCap Screw

Slide TubeMedium Ball[CNLR1011]

From parts bag 1: Apply a few drops of oilon the rubber dampers before inserting theFeathering Shaft into the head block. Slideone 5X10mm Washer on each side of theshaft. Install the blade grip ( Note thedirection of the bell mixer arm with thebeveled edge on top of the blade grip )followed by one 4x10mmWasher, one 4x12mm Washer and one 4mm Locknut. AssemblePushrod (I) x 2, measuring 35zmmend to end distance followingthe diagram on page 27,and connect the seesawball to the long ball onthe bell mixer.

STEP 1-4 Feathering Spindle & Blade Grips

M5x10 FlatWasher x 2

Short Ball


Main Rotor Blade Gripfrom Step 1-3


M4 Locknut x 2

Oilite Bushing x 2

Bell MixerArm[HI3189A]

Long Ball[CNLR1016]Optional SE Ball

Bearing Set[CNBB0730]

Repeat 2Times.

35 mm endto end.

Feathering Shaft[HW3180]


42

Note, the long ball is installed pointingaway from the the blade grip.

2

Top of blade griphas a Bevel.

Side View

2.5Hex

9

Attach two Medium Balls to the Washout Mixing Arms ( Note, attach from the flat side of the arm). Securethe semi-assembled mixing arms onto the Washout Hub using one slide tube inserted from the flat side andsecured using one M3x16 Socket Cap Screw and one M3x7 Flat Washer per arm. For security, apply a fewdrops of Thin CA, where the oilite bushing is seated to the washout hub, being careful not to get glue on theinside surface of the bushing.

STEP 1-5 Washout Assembly

Radius Link &M2x12 Pin[HI3152A]

M3x16 SocketCap Screw x 2

M3x7 FlatWasher x 2

MediumSteel Ball x 2CNLR[1015]

Washout HubAssembly[HI3152C]

OiliteBearing x 2


42

SlideTube x 2

Note: Secure oilitebushings to hubwith thin CA

2.0Hex

2.5Hex

STEP 1-6 Swashplate Assembly

Short SteelBall x 5

CNLR[1014]2.0Hex

Medium SteelBall x 2CNLR[1015]

2.0Hex

Swashplate Assembly[HI3146B]

2

From parts Bag 2: Startingwith the inside race, applythreadlock and attach twoshort balls (Tip 1) directlyacross from each other,similarly attach two mediumballs to the remaining holeson the inside ring. Attach thethree short balls (Tip 2) to theoutside race. The rear loca-tion is not used now.

10

STEP 2-2 Engine Start Shaft

From parts in bag 2: Slide the M5x10 Collar spaced approxi-mately 29mm from the top of the start shaft and partially

tighten with one M3x4 Set Screw followed by the secondbearing block. Next apply threadlock from the top of theshaft to just past the indent and slide the Hex Coupler to

align over the indent in the shaft. Secure with two M4x4 setscrews aligning one to the indent, using threadlock. Apply

some lubricant on the shaft after assembly to ensure smoothvertical movement inside the inner races of the bearings

when engaging and disengaging of the start system.

When removineg the hex start wand (not included in kit) after the engine is started, it is recommendedthat you follow this two step procedure. #1: Lift the hex wand upwards just enough to disengage the start shaft from the fan while keeping thewand inserted in the hex coupler (CN0402) #2: After the coupler has stopped turning, then remove the wand completely.

Hex StartAdapter[CN0402]

M4x4 SetScrew x 2

M3x4 SetScrew

Hex Starter Extension (Optional Part#CN0426)

M5x10Collar[HW3005A]

Sub Assembly 2 Main Gear Train

1

2.0Hex

1.5Hex

From parts bag 2: theStart Shaft Guide Blocksare pre-assembled. Slidethe Starter Shaft throughone of the block assem-blies with the M5x11Ball Bearing facing upand slide the spring and5mm washer and M5Collar onto the shaft.

M5x10 FlatWasher

Spring[HW3005A]

Hex TypeStarter Shaft

M2x5 SelfTapping Screw

M2x5 FlatWasher

5x11 BallBearing x 2[CNBB1150]

Start ShaftGuide Block[HI3007]

M5x10Collar

STEP 2-1 Start Shaft Bearing Blocks

Pre-Assembled

Guide blocks are pre-assembled, only finalassembly is needed.

[HW3005A]

11

E - Ring

5x13 BallBearings x 2[CNBB1350]

Tail TransmissionOutput Shaft[HW3059]

Tail Rotor OutputGear [HW3057]

STEP 2-3 Tail Transmission Output Gear

From parts bag 2: Assemble the TailTransmission Output Gear assembly.Install the E-Ring (be careful not tolose it, it can easily spring awayduring installation). Slide the twoBall Bearings onto the front of theTail Rotor Output Shaft. Usingthreadlock, insert one 3x4mm SetScrew into the gear, Note where theflat spot is on the shaft, slide thegear on and tighten the set screw(Make sure the set screw is posi-tioned over the flat spot).

M3x4 Set Screw

Alloy Drive Gear 13T - 30[HW3045]

M5x7Spacer x 2 5x13 Ball

Bearings x 2[CNBB1350]

M2x12 Pin[HI3040]

Drive Shaft[HW3042]

Counter Gear 55T[HI3040]

STEP 2-4 Counter Gear Assembly M3x4 SetScrew

From parts bag 2: Assemble theengine drive gear assembly. Start byinserting the guide pin into the hole inthe end of the Drive Shaft. Insert theshaft through the Counter Gear (makesure the pin is fully seated in therecessed slot at the bottom of thegear) then slide the two M5x13 BallBearings followed by the two M5x7spacers. Using locktite, insert one3x4mm Set Screw into the AlloyDrive Gear, then slide the gear ontothe shaft taking care to position theset screw over the flat spot on theshaft. Secure the drive gear to theshaft.

Test fit the gear assembly into one half of the upper side frames.While holding the alloy drive gear, try to slide the counter gear upand down on the shaft. Adjust for as little vertical play as pos-sible. It is normal and necessary to have a small amount of verticalplay to allow for expansion due to heat during operation.

A small amount of red locktight applied to the top of the countershaft, between it and the alloy drive gear will make for a moresecure fit. Only use blue locktite on the set screw. A small amountof the blue locktight can be applied carefully at the joint betweenthe shaft and each bearing. Warning, do not get any locktight inthe bearings as damage to the bearing may result.


1.5Hex

1.5Hex

Careful setup in the drive train willensure trouble free operation.

Alloy Drive Gear 14T - 50[HW3045A]

Bell 47G II only

12

From parts bag 2: The Main Gear is pre-assembled with theAuto-Rotation Bearing installed. Insert the bottom end of themain shaft through the auto rotation gear assembly, align the holesand secure the Main Shaft using one M3x16 Socket Cap Screwand one M3 Locknut.

Main Gear[HI3056]

Main Shaft[HW3053A]


M3 Locknut

Auto-RotationBearing[HW3050]Pre-Assembled

You can temporarily insert the mast stopper,upper main shaft bearing, main bearing spacer,and head block screw to keep them fromgetting lost! * Do not apply threadlock now!

STEP 2-5 Main Gear & Shaft Assembly

At some time in the future you will need tochange the main gear. The main gearassembly can be taken out of the mechan-ics by removing only the main shaft andtilt the main gear angled higher at the frontand slide out of the upper side frames.When removing the auto-rotation bearing,note that it must be re-installed into thenew gear in the same direction, otherwisewhen power is applied the gear will notdrive the main shaft, only the gear willturn.

2.5HexSTEP 2-6 Elevator Lever

M2x16 Pin

ElevatorBellcrank[HI3032C]

M3x30 SocketCap Screw X 2

Short Spacerx 2

Long Threaded Axle

M3x7 BallBearing x 2

Only assemble, do notuse threadlock now!

Short Steel Ballwith Long Threadx 1 [CNLR1013]

From parts bag 2: Insert the longthreaded axle and one M3x7 ball bear-ing from each end of the bellcrank.Slide one short spacer over one M3x30Socket Cap screw and attach to thethreaded axle ( do not use threadlockhere!), repeat forother side. The M2x16 pinis assembled, just insure theelevator radius linkmoves freelyagainst theBellcrank.Thread oneshort blackball into theelevator arm.

CNQSC04Optional machinedball bearingelevator arm w/adjustable ball link.

2.0Hex2.5Hex


Top

Bottom

13

Tail TransmissionOutput Gear Assemblyfrom Sub Assembly 2

Counter GearAssembly fromSub Assembly 2

Upper Side Frame[HI3107]

Main GearAssemblyfrom SubAssembly 2

M3x12 Self TappingScrews x 4

M4x5 SetScrew x 2

Mast Stopper[HW3054A]

M10x19 BallBearing[CNBB1019]

Start ShaftAssemblyfrom SubAssembly 2

Be careful when tightening the eight M3x12 self tapping screws into the start shaft blockassemblies as excessive force can strip the plastic holes.

STEP 3-1 Upper Side Frames

From parts bag 2: Install two M4x5 Set Screws (note-do not apply locktite at this time) into the Mast Stopper(note that the raise inner diameter must face the ball bearing) and slide the mast stopper on the main shaftfollowed by one M10x19 Ball Bearing and one 14x19 Spacer (the spacer must be installed on top of the bearing).Slide one M8x19 Ball Bearing from the bottom of the main shaft.

Attach the starter shaft assembly to the side upper side frame with four M3x12 Self Tapping Screws(observe the correct orientation of the block assemblies). Position the main gear/main shaft assembly, (notethe orientation of the mast stopper, the raised inner diameter should be facing upward, towards the innerrace of the top bearing) the counter gear assembly and the tail transmission output shaft assembly in thedesignated locations (see diagram below) on the upper right side frame (Make sure the bearings are fullyseated in the recesses.)

1

M8x19 BallBearing[CNBB1980]

Sub Assembly 3 Main Mechanics

3

32.0Hex

3

19 x 14Spacer

14

Long hex spacers[HW3127] x 2 M3x35 Socket

Cap Screws x 4

M3 Locknut x 4

Upper SideFrames L& R[HI3107]

Elevator Assemblyfrom Sub-Assembly 2

The gear mesh between the main gear and the tail transmission output shaft may be a snug fit at first,but it will become smooth after a few flights. This is the normal wear in process. Do not lubricate anyof these gears.

M3x12 SelfTappingScrews x 4

M4x5 SetScrew x 2

From parts bag 2: Insert the two long Hex Spacers at the specified locations in the diagram. Note: the front hexspacer is installed into the forward-most hole. Install the upper left side frame, taking care that the bearingsare aligned with the mating recesses and secure the frames with four M3x35 Socket Cap Screws (do not usethreadlock when using locknuts) through the main shaft bearing block positions and four M3 locknuts. It isadvised to position the elevator assembly between the side frames at this time in order to reduce the amount ofre-positioning later.

While pulling up on the main shaft (make sure the main gear rotates freely), push the mast stopperagainst the upper ball bearing insuring that the raised inner portion of the stopper is facing upwards. Tempo-rarily tighten one M4x5 set screw and remove the other, apply threadlock and tighten in place. Repeat for thefirst set screw to apply threadlock and tighten. Attach the remaining four M3x12 Self Tapping Screws (see Tip 3at the bottom of Step 3-1) to the starting shaft blocks.

1

STEP 3-2 Upper Frame Assembly Sub Assembly 3 Main Mechanics

2.5Hex

3

2.0Hex

15

M3x10 SocketCap Screws x4

M6 x 10 BallBearing x 2[CNBB1060]

CollectiveLevers[HW3024]

Short Ball[CNLR1010]

From parts bag 2: Press in two M6x10 ball bearings into the front side frames for the collective axle. Usingthreadlock, insert two M3x10 Socket Cap Screws through the right (R) Collective arm (notice that the round6mm collective axle is attached at the middle hole) and slide two M3x7 Flat Washers before attaching thecollective axle and the front hex spacer. Remove any extra threadlock from the axle and spacer. Slide the assem-bly through the ball bearings in the upper side frames from the right. Using threadlock on the inside threads,attach the left (L) Collective Arms with two M3x10 Socket Cap Screws insuring the two M3X7 washers are onthe inside. Tighten the screws until the collective lever moves freely with no side to side play. Install one M3Short Ball on to the collective lever using threadlock.The left Aileron Bellcrank has two oilite bearings pre-installed into the bellcrank, install the two Short Balls tothe “A” side (outside) and insert the slide tube through the bellcrank using a small amount of lubricant (thebellcrank is offset, make sure the slide tube is inserted from the “A” side also). Starting on the left side,remove the M3x30 Socket Cap Screw and short spacer from the elevator bellcrank (previously assembled), andslide the left aileron assembly onto the screw and insert through the left collective lever. Apply threadlock tothe end of the screw threads now and slide on the short spacer before tightening into the elevator bellcrank axle.Repeat for the other side.

M3x30 Socket CapScrew x 2 (fromSub-Assembly 2)

Slide Tube

AileronBellcrank[ HI3031A ]

Repeattwice

Hex Spacer[HW3127]

Collective Axle(6mm dia)[HW3024]

Upper frameassembly fromSub-Assembly 2

Short Spacer

Short Ball x 4[CNLR1010]

R

“A” on outside

M3x7Washer x 4

L

STEP 3-3 Collective and Aileron Levers Sub Assembly 3 Main Mechanics

2.5Hex

1

Slide Tube

2.5Hex1

2.0Hex

16

STEP 4-1 Tail Output Shaft Sub Assembly 4 Tail Boom

From parts bag 7: Notice that theTail Rotor Drive Shaft has 2 holes,one through the shaftand one drilled partiallyinto the shaft. Slide thesmaller Bevel Gear with the teethfacing inward from the end with thethrough hole. Position the gear byaligning the holes and press theM2x12 Pin through and secure withone M3x4 Set Screw usingthreadlock. Slide the Spacer Tubeonto the shaft and position againstthe gear.

M2x12 Pin

Tail Rotor DriveShaft [HW3073]

Smaller BevelGear[HI3075]

M3x4 Set Screw

Brass SpacerTube[HW3074]

Hole throughshaft

1.5Hex1

Tail Pitch BallLinks x 2M2x8 Pin x 2[HI3089]

From parts bag 7: The TailPitch Plate and Tail Pitch BallLinks are pre-assembled.(Note: apply some JB weldto the outside of the lockring to avoid the assemblyloosening.) Put this assemblyaside for later.

M6x10 BallBearing x 2[CNBB1060]

[HI3087A]

STEP 4-2 Tail Pitch Plate

To prevent JB Weld from damaging thebearing. Carefully pry the lock ring from the

brass tube using a knife. Use a hole punch tocut a hole into a small piece of clear plasticand insert before the lock ring. Press the lockring in place and apply the JB Weld. Once dry,cut a slot into the clear plastic and tear out from beneath the lock ring.


Tail Gearbox InputShaft [HW3070]

M2x12 Pin

From parts bag 7: Assemble the Tail Rotor OutputShaft assembly by sliding the two M5x13 Ball Bearingson to the shaft, followed by the LARGEBevel Gear with teeth facing outwards. Align the holesin the gear with the shaft and press in the M2x12 pin.Using threadlock, secure with one M3x4 Set Screw.

M3x4 Set Screw

Large Bevel Gear[HI3075]

STEP 4-3 Tail Gearbox Input Shaft

1.5Hex1

1

17

Gearbox Housing[HI3078]Right Hand Side

Tail Pitch PlateAssembly

Slide one M5x11 BallBearing onto each endof the Tail RotorDrive Shaft assemblyand insert through theinside of the right sideof the Tail RotorGearbox Housing.Make sure the bearingis fully seated into therecess. Slide the tailrotor pitch plateassembly onto theshaft.


Small BevelGear

STEP 4-4 Tail Output Shaft Assembly Sub Assembly 4 Tail Boom

From parts bag 7: Install the Tail Rotor Hub onto the tail rotor drive shaft, (position the hub so the hole isaligned over the partial hole in the shaft). Using threadlock, insert and secure the M3x4 Set Screw. Insert oneM3x16 Socket Cap Screw through one M3x10 Ball Bearing (apply the threadlock to the threads in the hubto avoid getting threadlock in the bearings), and attach to the hub assembly, using threadlock. Repeat for theother side.

Tail Rotor Hub[HW3098]



M3x10 Socket CapScrew

STEP 4-5 Tail Rotor Hub

1

2.5Hex

When replacing thetail gearbox, the two

fin mounts (1)shaded in grey, needto be trimmed off asthese fuselages usesthe adjustable clamp

to secure thetailboom.

1

Agusta 109AirwolfBell222

Long RangerTwinstar

M3x4 SetScrew

11.5Hex

18

20mm Tail DriveShaft Set [HW3063]

Put a flat spot on the theround end of the Tail DriveShaft.

Packed with the tailboom: The Tail DriveShaft has one end flattened to engage intothe front of the mechanics, the other endneeds to have a 20mm long flat spot filedon the round end of the shaft to provide a moresolid seating for one of the two M4x4 SetScrews on the tail rotor input shaft.

A flat file is the ideal tool for the job, alternately careful use of a DremelMoto Tool will work. It is important that the flat be at least 1/4 of thediameter but no more than 1/3 to avoid weakening the material.

File

Tail Drive Shaft

ApplyGrease

STEP 4-7 Tail Drive Shaft Preparation

STEP 4-6 Tail Rotor Grips & Tail Rotor Pitch Lever Sub Assembly 4 Tail Boom

From parts bag 7: Using threadlock on the two M2x10 Phillips Machine Screws and M2 Hex Nuts, assembleboth Blade Grip Halves over the bearings with the nuts facing towards the gearbox, snap the two balls from thetail rotor grip into the adjoining pitch slider links. Install the Tail Rotor Blades using two M3x16 Socket Cap Screws and M3 locknuts. Note the direction ofthe blades on the diagram, the straight leading edge of the blade should be on the same side as the ball on theblade grip.

Install the M2 ShortSteel Ball, threadedfrom the bottom of thebellcrank. Install thetail rotor bellcrank ontothe tail rotor gear boxwith one M3x16Socket Cap Screw,inserted through thebushing with thewasher side on thebottom ( make surethe steel ball at thebottom of the pitchslider is engaged intothe end of the t/rbellcrank ). Do notovertighten the M3x16bolt. M2 Short Steel Ball

[CNLR1013]

M3x16 Socket Cap Screw

Tail Rotor Blades[HI3099] x 2

Blade GripHalves [HI3096]

M2x10 PhillipsMachine Screw x 4M2 Hex Nut x 4

M3x16Socket CapScrew

M3 Locknut

Tail RotorBellcrank[HI3102A]

After flying the model, if a buzzing vibration is noticed onthe ends of the vertical or horizontal fin, you can removethe complete tail rotor assembly with the hub and furtherbalance it using a High Point balancer. Careful sanding ofthe rotor blades is all that would be needed.

Leading Edge

Leading Edge

Make sure the steel ball at thebottom of the pitch slider is

engaged into here.

42.5Hex

1

1

2.5Hex

2.0Hex

19


M3x12 Socket CapScrew x 2

Tail OutputGear Assembly

Tail BoomAssembly

M3 Locknut x 3

Attach the tail output gear assembly onto the rear of the drive wire shaft using a threadlock on the two M4x4 SetScrews (insure the filed flat spot is aligned with one of the set screws). Position the output gear assemblyinto the right gear box half (insure the 2 bevel gears are meshed properly and the ball bearings are fullyseated in their recesses ) and liberally grease the gears before attaching the left side. Position the gear boxhalves such that the molded key-pins are fitted into the key holes in the end of the tail boom. Secure withone M3x10 Socket Cap Screw and M3 locknut at the back of the gearbox, two M3x12 Socket Cap Screws withM3 locknuts at the center and two M3x25 Socket Cap Screws and M3 locknuts through the molded mounts inthe front end of the tail rotor gearbox.

M4x4 Set Screw x 2Tail DriveShaft[HW3063]

Flat Spot

Apply red locktite tothe drive shaft endand insert into thegearbox input shaft.Do not use on setscrews, only tolocking the wire shaftto the input shaft.

ApplyGrease

From Bag 7: Insert three tail drive shaft Guides on to the Brass Tail Drive Housing, found in the bottom of thebox (Note that one guide has a larger center hole than the others, slide this one to the center of the brasstube ), add the remaining two onto the ends. Glue the guides into position using Zap Ca on the brass tube.Insert the rod guide assembly into the tailboom from the end with the 2 holes and position the assembly centeredin the tailboom ( gentle tapping with a wooden dowel will easy the insertion of the guides ). Secure insidethe boom by dripping some Ca glue down the tube. Be careful not to get any inside the tube. Thoroughlygrease the tail drive shaft and insert the newly filed end into the end of the tailboom with the slots. Align withthe center of the drive shaft housing assembly and insert. Degrease both ends of the shaft.

Tail Drive ShaftSet [HW3063]

DriveHousing( brass )

Drive HousingEnd Guides x 2

Drive HousingCenter Guide

STEP 4-8 Drive Shaft & Shaft Guides Sub Assembly 4 Tail Boom

CATail Boom

Agusta 109 [HW3063R]Airwolf [HW3062G]Bell 222 [HW3062G]Long Ranger [HW3062R]Schweizer 300 [HW3062]Twinstar [HW3062R]

Make sure the brass tubing is glued tothe internal guides for the tail boom.

STEP 4-9 Tail Gearbox Assembly

1

1

M3x25 Socket CapScrew x 2

1

2.0Hex 1

Only forSchweizer 300& Bell 47G

Grease to be used insidethe tail gearbox should bea teflon or light lithiumtype of grease commonlyfound in a hobbyshop. Donot grease any other gearson the helicopter.

2.5Hex

2.5Hex

20

Almost Ready to Fly (ARF) Scale Mechanics

For those that have purchased the pre-painted and ARF mechanics, this is the beginning of a new breed ofAlmost Ready to Fly helicopters that are simpler to build, easier to see and look fantastic. Whether you are justbeginning in helicopters, wanting to start in scale or an accomplished pilot, Century offers a wide selection ofscale helicopters to fullfill your dreams in scale. Century has combined their world-class helicopter mechanicswith awesome fiberglass fuselages designed to mount directly inside without modification. As you unpack yourARF scale helicopter kit, each major section has been pre-assembled, along with parts bags that contain theremaining items that need to be assembled. All of the steps from the beginning until now are for referrence andapply directly to your helicopter but are necessary for the assembly kit version.

Follow the remaining steps to complete building the helicopter mechanics, read these steps and refer to thedetail fuselage manual to complete the fuselage preparation. Lastly, you will bring all the sub-assemblies to-gether when the main mechanics are mounted inside the fuselage and complete your scale helicopter.

Airwolf Bell222 Long Ranger Agusta 109 Bell 47G II TwinstarCN1070A CN1071A CN1072A CN1073A CN1074A CN1075A

Flybar Control Arm x 2Steel Ball x 2

[HI3176]

STEP 1-7 Flybar, Paddles and Flybar Control Arms

Align each paddle 'A' to be parallel with the flybarcontrol arms 'B'. This is made very simple with the optional pitch and paddle gauge CN2026.

Flybar [HW3173]* packed withtailboom

Flybar Paddles& Weights[HI3179] x 2

From parts bag 1: Slide and center the Flybar through the seesaw arm assembly. Install one Steel ball (caremust be taken when inserting the M2 Steel Ball, it is best to turn 1/2 in then 1/2 turn out, like tapping ahole until the steel ball is fully seated) onto each flybar control arm. Slide the M3x3 Spacer and Flybar Con-trol Arm onto the flybar. Loosely tighten the control arms with two M4x5 Set Screws. Using a ruler, check thedistance between the end of the flybar and the control arm and adjust until the lengths are the same and there isno free play between the control arms and the rotor head. Slide the Flybar Weight (Note: the flat end of theweight faces the paddle) and thread on the Flybar Paddle until all the threads are covered and align the paddlesparallel. Again using the ruler, rotate one paddle or the other to get equal distances, remember leading edge ofthe paddles turn clockwise and finally threadlock on the two M3x3 Set Screws to secure the flybar weights. Thelast step is to secure the flybar control arms, remove one set screw at a time, apply threadlock (Tip 1) andtighten in place.

Spacer M3x3[HI3167D]

A=B=A

Leading Edge

Leading Edge

For balancing ofrotor head see Final

AdjustmentsClockwiseRotation

Optional HeadButton

CN2215

A AB

M4x5 SetScrew x 2

M3x3 SetScrew x 2

1.5Hex1

2.0Hex


21

ClutchShoes[HW3011]

Clutch Bell[HI3010]

M9x14 FlatWasher

Engine ballbearingexposed.

Thrust Washeror M9x14 FW

Remove all parts from the enginecrankshaft until you can see the frontball bearing. Install the M9x14 Flatwasher (or washer provided by enginemanufacturer), insert the Ball Bear-ings into the clutch bell assembly andplace on the crankshaft. Clean thethreads on the crankshaft and on theclutch, carefully apply bluethreadlock on the last 6mm of thecrankshaft threads nearest the bearing(be careful not to get threadlock intothe ball bearings) and on the threadsin the clutch. Thread the clutch ontothe crankshaft until the crankshaft canbe seen through the top. Insert thefan, keying it to the clutch. Wrap acloth over the fan (provides grip tothe fan without breaking the fins) andtighten until the clutch stops, torquean additional 1/16 of a turn. Using aPiston Lock [CN2155 Optional Parts]makes this easier. Secure the fan withthe M5x13 Washer and the enginesprop nut onto the crankshaft. Applysome high strength red threadlockto the prop nut to insure its securityAgain only torque the nut 1/16th of aturn more.

Cooling Fan[HI3009]

M5x13 FlatWasher

EngineNut


EngineAssemblywith FanThe scale mechanics include the 30 size engine

mount, however if you are installing the 46~50engine conversion then the [HW3018] needs to bepurchased separately1.Using threadlock, secure the engine assembly ontothe engine mount using four M3x16 Socket CapScrews.

Engine Mount[HW3017]

30 Size

During final assemblywipe all traces of oilor grease from the

inside surface of the clutchlining. Any grease here cancause a meltdown.

M12 x 18BallBearing x 2[CNBB1218]

ReplacementClutch Lining[CN2020L]

STEP 3-4 Clutch, Fan & Engine Mounting Sub Assembly 3 Main Mechanics

STEP 3-5 Engine Mount

Engine Mount[HW3018]46-50 Size

12.5Hex

Note: Upright (top)direction of mount.

ARF VersionRemove the four M3x16 SocketCap Screws and large M3 FlatWashers that hold the enginemount inside the mechanics,temporarily insert them back intothe mount as not to loose them.

1 The Bell 47G II includes the [HW3018]mount for the 46~50 helicopter engine.

Use only 1.

22

From parts bag 3: Insert the two pieces of aluminum tubing through the large cap, rubber stopper and smallcap, bend the long aluminum vent tube upwards (make sure the tube comes to the top of the fuel tank) andattach the short piece of fuel line and clunk to the short straight piece of tubing. Test fit the assembly intothe Fuel Tank and make sure that the clunk reaches to about 1/8” from the back of the tank and can movearound freely. Insure the vent tube is near the top of the tank but does not touch it. Install the tie wraparound the outside of the rubber cap. Finally tighten the long self tapping screw to seal the tank.

Vent Tube - bentand ends near thetop of the tank.

Note: The fuel tank opening is off-center and shouldbe installed upwards to align closer to the carburetor.

Large Cap

Small CapRubberStopper

Wrap the tie-wrap aroundthe outside andsecure.

Pickup tube -straight

Fuel Tank [HI3138A]

M2.5 x 18 SelfTapping Screw

50mm Fuelline insidetank withClunk.

STEP 3-6 Fuel Tank Sub Assembly 3 Main Mechanics

STEP 3-7 Landing Gear (Long Ranger & Twinstar Only)

From parts bag 6: Assemble the landing gear by sliding the Aluminum Skids through the Struts, start thefour M3x5 Set Screws into the struts now but do not tighten at this time. (Do not use any threadlock). Set thedistance from the rear of the skid to the strut at 25 to 30mm. Attach the landing gear to the main mechanicswith the four M3x9 spacers against the fiberglass fuselage (do not attach until after the mechanics havebeen fitted to the fuselage) using four M3x16 Socket Cap Screws, M3x7 flat washers and M3 locknuts.Finally secure the skids into their position and tighten the four M3x5 set screws, being careful not to over-tighten and strip out the plastic holes.

Antenna PlasticGuide Tube

M3 Locknuts x 4

Plastic Struts[HI3122] x 2

M3x5 SetScrews x 4

Aluminum Skids[HW3123] x 2 M3x16 Socket Cap

Screws x 4M3 Flat Washers x 4

Fuel Tank [HI3138A]

After finishing the radioinstallation, installing abase loaded antenna isrecommended (notincluded) to be mountedinside the fuselage awayfrom any electricalwiring.

1.5Hex

Long Ranger & Twinstar Only

M3x9Spacers x 4

23

From bag 4, if your engine throttle arm is too short, install the Throttle Extension by removing the arm suppliedon the engine. The arm has to be repositioned to get equal throw, both open and closed from 50% as per thediagram below. Insert the muffler screws (included with muffler) at this time into the engine, access is restrictedafter the right side frame is in place. Attach the right lower frame (R) to the upper frame assembly with twoM3x12 Socket Cap Screws using threadlock. Slide the cooling Fan Shroud over the engine head and positionthe engine assembly into the upper frames while attaching the two M3x12 Socket Cap Screws and two M3x11Flat Washers (leave loose for now) through the (R) side frame. Slide the Fuel Tank through the frame andattach the left lower side frame (L) to the upper side frame using two M3X16 Socket Cap Screws, two M3x12Socket Cap Screws with two M3x11 Flat Washers using threadlock1. Thefuel tank opening should be installed through the right side to insure theyare on the same side of the carburetor fuel inlet. The vent tube will beconnected to the muffler pressure fitting after it is installed.

10 oz. FuelTank[HI3138A]

Lower SideFrames[HI3112C] x 2

M3x16 SocketCap Screws x 4

STEP 3-8 Lower Frame Assembly Sub Assembly 3 Main Mechanics

ARF VersionFirst remove the four M3x16 Socket Cap Screws, two M3x6 PhillipsWasher Head Screws and two M3x6 Self Tapping Screws that secure thelower frames to the upper frames and the servo frames.

ThrottleExtension

[HW3204]

CoolingFan Shroud[HI3120A]

Engine from sub-assembly 3.

Upper Framesfrom subassembly 3.

M3x12Socket CapScrews x 4

M3x11 FlatWashers x 4

2.5Hex

2.5Hex1Look at the alignment of the starting shaft and the cooling fan,slight adjustments can be made and then apply threadlock to theengine bolts.

L

R

50%

Full OpenFull Closed

Throttle arm on Carburator

OptionalCN2030A

Idle Mixture Screw

MufflerBolts

24

AileronServo

M2.3x10 Self TappingScrews x 20

ElevatorServo

Switch Plate[HW3115A]

Servo MountTabs x 4[HI3205]

M3x30MachineScrews x 2

ThrottleServo

From parts bag 5: Assemble the servo tray using eight M3x12Self Tapping Screws. This is a good time to install the collective

and throttle servos (note orientation) from the inside of the (L)servo frame. ( Note, use the rubber grommets provided with

the servos, you can use the screws that camewith your servos or the screws provided in the kit ).Attach the switch mount using four M3x6 Self Tapping

Screws from the inside of the (R) servo frame.Attach the rudder (yaw), aileron (roll cyclic) and

elevator (fore/aft cyclic) servos insuring properorientation, to the top servo tray.

Canopy MountSchweizer 300[HI3129]

Servo Frames fromsub-assembly 3.

Attach the servo frame assembly to themechanics using two M3x12 Self Tapping Screws

on top. Insert one M3x6 Phillips Washer Head Screwthrough the servo frame into the lower frame (the lower frame

has a special fitted nut) using threadlock. Repeat for the other side. Securethe cooling fan shroud with two M3x6 Self Tapping Screws (leave loose for now).

M3x6 Phillips WasherHead Screws x 2

STEP 3-9 Servo Frame Assembly Sub Assembly 3 Main Mechanics

RudderServo


3

CollectiveServo


Servo Frame Set[HW3115A]

L

R

Attach the canopy mount using twoM3x30 Phillips Machine Screws

through the top of the lower servotray, through the plastic spacer and

into the canopy mount.

Bell 47G II & Schweizer 300 only

Bell 47G II & Schweizer 300 only

STEP 3-10 Main Mechanics

1

M3x12 Self TappingScrews x 23M3x6 Self Tapping

Screws x 2 3

Bell 47G II &Schweizer 300 only

Main Mechanics fromsub-assembly 3.

3

Bell 47 G II[CN1074-6]

25

With the narrow space between the mechanics and thefuselage, it is recommended to install the scale muffler

Century has designed for these helicopter fuselages.Attach the muffler to the engine with the screws provided

with zthe muffler (Tip 1- using hi-temp threadlock).Attach the pressure tap to the top of the muffler, remem-

ber to use hi-temp RTV sealer or threadlock on theseparts. Route the return fuel line below the engine.

OptionalCN3058 - 30CN3059 - 46/50Scale Muffler

Not Included

For a good seal between the muffler and theexhaust port, use a gasket made from thin

aluminum, brass or exhaust gasket material.To properly seal the fit, after running the engine for several

minutes on the first run, shut down the engine and re-tighten thebolts, while the engine is still hot. The extra 1/8 to1/4 turn on the

bolts will seat the muffler in place. Do not strip the holes!

MufflerPressuretap - installedvertically

Remove the M3x16 Socket Cap Screw from the topof the main shaft. Slide the swashplate and washoutassembly from sub-assembly 1 onto the main shaft

and snap the elevator lever arm onto the single frontball on the swashplate. Slide the completed rotor

head assembly from sub-assembly 1 onto the shaftand align the hole in the head block with the hole in

the top of the main shaft. Insert the M3x16 SocketCap Screw and M3 locknut to secure the two.

(Note: Make sure the pins in the rotor headblock are aligned and inserted into the holes in

the washout unit.) Apply some oil sparingly to thewashout hub assembly to insure they slide smoothly.

Main Frame Assembly from sub-assembly 2.

M3x16SocketCap ScrewM3 Locknut

Swashplate &Washout fromsub-assembly 1.

Completed RotorHead Assembly fromsub-assembly 1.

Following assembly, move the collective lever fore andaft to the endpoints. The swashplate and washout unit

should be very smooth throughout the movement range.If not, inspect the fit of the washout guide to the pins in

the rotor head, these pins can be bent slightly if binding.Also check the collective axle, the screws here may betoo tight. The fit of the ball links sometimes can cause

binding, with time these will break in. These few pointsare the most common which will cause servo strain

leading to premature wear and can make the collectivecontrol a little vague.

Long Steel Balluse for PushrodShort Steel Ball

STEP 5-1 Rotor Head Assembly Final Assembly

The rotor head assembly with washout and swashplate should beassembled now to complete all the pushrods for the main head andmechanics. Once the radio installation is complete, it will be disas-

sembled as in this step to be fitted to the scale fuselage.

2.5Hex

STEP 5-2 Attaching the muffler

Returnfuel line

Bell 47G IIScale Muffler is different.

Idle adjustment is nearly impossiblewithout [CN2030] Idle Mixture Screw(not included) extensions. We recom-mend using them

26

Attach the tail boom assembly to the main mechanics by sliding the tailboom tube into the mounting hole at therear of the upper frame using five M3x25 Socket Cap Screws, one M3x30 Socket Cap Screw and six M3 Lock-nuts. Slowly press the tailboom in, being careful to engage the flattened end of the drive wire into the slotted tailrotor output shaft. The slots on the end of the tailboom will self align with molded pins inside the upper sideframe. Take your time and the wire will slide in. Once engaged, press the tail boom in completely until it is fullyseated. Hold the main gear frommoving and try to turn the tailrotor to insureproper engagement,you should notbe able to turn thetail rotor. If you canrotate it, the drive wire isprobably not properlyseated into theslot of the frontoutput shaft.

Tail Boom

Assembly from

sub-assembly 4.

Main

Mechanics

M3X25 Socket

Cap Screws x 5

M3 Locknut

x 6

STEP 5-3 Tail Rotor Pushrod & Support Guides Final Assembly

STEP 5-4 Tail Boom Assembly

Slide the three tail pushrod guides onto the tail boom, position each guide to allow the pushrod to rotate from

beneath the tailboom at the tail gearbox to beside the tailboom on the right near the main mechanics. Do not

glue the guides until the rudder pushrod is installed and moving freely. Slide the front pushrod through the

large molded guide (the small front guide is no longer used) at the rear of the upper mechanics and thread into

the pushrod coupler after the tail boom is installed. Also, after radio set up is complete and the mechanics are

inside the fuselage, glue the pushrod guides using a single drop of Zap Ca. One drop will stop the pushrod from

binding and still be able to remove them later.

Rear Pushrod Guide

on Mechanics

The rearmost pushrod guide must be installed

before the tail gearbox is assembled as it will not

pass the fiberglass tail section of the fuselage. Also,

these fuselages have shorter tailbooms and require that

10-20mm be cut off from the threaded sections of the tail pushrod. It is best that after the tailboom is installed,

attach both ball links to the ends (no Century name) and not attach the pushrod coupler. Attach the ball links to

the steel balls on the servos according to the rudder setup instructions and then see how much thread must be cut

off. Remember that each threaded section can be trimmed up to 5mm but alway err on the safe side.

Long Tail Pushrod

[HW3064C]

Tail Pushrod

Guides

[HI3106A]

Tailboom

Assembly from

sub-assembly 4.

Tail Pushrod Coupler &

Front Pushrod [HW3064C]

Tail pushrod ball

links (no Cen-

tury name) x 2

Airwolf, Agusta 109, Bell 222, Long Ranger

M3X30 Socket Cap Screw2.5Hex 1

27

Make up all the control pushrods according to the specified lengths shown in the drawing. These are full scaledrawings so you can easily match each pushrod to the page. Please note that these dimensions listed from endto end of the plastic rod-ends are to be taken as correct. Fine tuning may be required as the picture size maychange when printed. Also some servos offer different horn placements for fine tuning. The numbers in thecenter of the pushrod drawings are the actual length of the rods to help select the correct pushrod for eachcontrol surface.

Note: It is very important that before you install the pushrod linkages that you first charge your radio then removeall the servo horns from the servos and center all the mechanical or electronic trims on the radio. The overall lengthsof the pushrods are shown to the right of each pushrod drawing.

15

105

80

75 “z bent rod”

80

15

128

B (1) 100mm

A (2) 51mm I (2) 35mm

C (2) 104mm

D (1) 102mm

E (1) 135mm

F (2)156mm

Washout to Flybar Control Arm Bell Mixer to Seesaw

Throttle pushrod

Collective

Bell Mixer to Swashplate

Elevator pushrod

Aileron pushrod

Tail Rotor pushrod

All pushrods areshown full size.

Pushrod Set[HW3192B]

Ball Link Set[HI3145]

G (1)

J (2) 61mm

Aileron Bellcrank to Swashplate

Tail Pitch Control Rod & Connector[HW3064C]

STEP 6-1 Pushrod Setup and Adjustments Setup and Configuration

25

Careful inspection of the regular ball links will reveal that one side hasthe Century name and one side does not. These ball links are designed to

fit in one direction with the Century logo facing outward. In some cases toget the exact length the ball link will be attached in reverse, this is equally

done but as usual check all pushrods regularly for looseness.Only the rudder pushrod ball links are different, as the rudderpushrod is 2.0mm as compared to the 2.3mm used throughout

the mechanics.

28

The next section (series 6 steps) covers the pushrod hardware to be mounted to the servo horns and ultimatelythe pushrods themselves. Each step is well described but lets take a few moments to cover a few basic points onsetting up individual servos. By this time the radio should have been charged overnight. Recheck that all theservo trims and sub trims are centered. Each radio manufacturer makes servo horns in different shapes: round,in a cross and sometimes a star, each giving a selection of hole patterns to choose from.

We are looking to have equal travel both in the left and right rotation of the servo, this becomes complicated bypushrods attaching to the servo at an angle. To correct this we recommend an angle for the hole location. Forelevator and collective, we suggest 10-15 degrees to allow for this "linear" geometry to be set up. A range isgiven to make it easier for you to just choose an available angle, if this is not possible, simply lift the servo hornoff the servo and press into place one "notch" back ( counter-clockwise ).

Choosing the correct servo horn only involves whetherthe particular arm or wheel has the correct hole at the

recommended distance measured from servo center tohole center, off by 1/2mm is ok. When using cross horns,many times the remaining arms need to be trimmed off to

avoid binding on another servo like throttle and collec-tive. When two pushrods need to be on the same hornbut each at an angle, the round wheels are best suited.For wheels that are not predrilled for offsets, measure

and drill your own holes. Remember to originally set thewheels or arms centered on the servo.

Futabacross horn

JR roundhorn

Airtronicscross horn

10 mmradius

We strive to have all the control surfaces setup linearly, this means that asthe control stick is moved an equal distance from both sides of center thatthe distance traveled by the control rod will be equal. Although this maynot be clear now, this will become very clear when adjusting the throttleand collective servos movements, commonly called the throttle and pitchcurves. At this time it is worth mentioning the danger of the ATV func-tion. Adjustable Travel Volume has solved many setup problems while atthe same time has created new ones. Most commonly used to easily keepthe servo from binding. The thing to remember is to keep the upper andlower values the same or as close as possible. If the final values aredifferent by more that 10 points then a mistake was made in setting themechanical limits. Time to go back and recheck.

90½ 10-15½

Servo horn shown offsetone notch back on theoutput shaft.

The goal in the end after all the servos are mounted is to have theswashplate sit level or at 90 degrees to the main shaft and have theswashplate move equally fore, aft and side to side. The swashplatewill also travel up and down as the collective servo is moved, it isimportant that in the upper position the washout hub does notcontact the rotor head block. At the same time, the bottom positionof the swashplate must remain above the top of the frames to avoidcyclic (fore, aft and side to side tilt) interference.Do not use the pitch gauge until you have installed all the servohorns and pushrods. Pitch settings usually are the last step incompleting the basic setup for the helicopter just prior to makingthe first test flights.

After installing the aileronand elevator pushrods, theswashplate should sit level.

Setup and ConfigurationServo Setup & Adjustments

Transmitters bought in North America are called Mode 2 that describes the positioning of the aileron,elevator, throttle and rudder as it is mapped to the two sticks. Other countries, refer to your radio manual.

29

PushrodA x 2

PushrodC x 2

When attaching all pushrods, make sure thatany two pushrods that should be the samelength actually are the same length at thistime. Otherwise it will be difficult later tofigure out where any linkage problems arecoming from. Attach the following:

Pushrod B

PushrodF x 2

Pushrod E

The lower linkages are shown here toillustrate the general setup and layout ofthe servo linkages to the respectivecontrol surfaces.

It is important that the next few steps bestudied carefully and tested in regards tomoving the transmitter stick to the up,down and left, right limits to verify thatthe servo is not binding anywhere in itstravel. Also, a common mistake is tomount the collective and throttle servosfrom the outside (having the grommetsand eyelets on the outside) of the servoframes. In the scale helicopter this prob-ably will not be an issue but adds an extraangle that needs to be compensated. It isbest to verify that the servos are mountedfrom the inside of the frames, as it keepsthe pushrods in the same fore-aft plane.

PushrodG

Pushrod D

Pushrod J x 2

PushrodI x 2

Replacement Linkage Set [HW3192B]Adjustable Cyclic Links (J) [HW3035A]Plastic Ball Links (15 long, 4 short) [HI3145]

STEP 6-2 Rotorhead Pushrod Setup Setup and Configuration

2 Flybar Arm to Washout pushrods (A)2 Bell Mixer (short ball) to Seesaw (I) (Pushrod was installed in Step 1-4)2 Bell Mixer (long ball) to Swasplate (C)2 Ail. Bellcrank to Swashplate pushrods (J)

When removing the rotor head in general orin the case to fit the mechanics into the scalefuselage, simply remove the pushrods thatattach to the outer ring of the swashplate.After removing the bottom M3x16 SocketCap Screw from the autorotation unit andloosening the mast stopper set screws, theentire rotor head can be removed.

STEP 6-3 Lower Pushrod Overview

30

Mid Stick(5.50)

Low Stick(-20)

Top Stick (90)

Collective PitchServo

Pushrod F (2pcs)

Pushrod D

Aileron servo

1. Remove this section of the servowheel to avoid the rod end bindingagainst the servo wheel.2. Optionally, the straight arm canbe used however this tends to bind,for free movement use first method.

The Aileron linkage controls the side to side tilt of the swashplate which in turn causes the helicopter to pitch/move to the left or right ( hence the name roll cyclic pitch ).

Using threadlock on the steel nut only, attach two steel balls with two M2 Hex nuts to a round servoarm at a distance of 10 to 11mm from the center of the servo ( this range may vary depending on your particu-lar radio ) and 10-15 degrees ahead of the center of the servo. You are trying to get a 90 degree angle betweenthe line described by the pushrods and the line described between the center of the servo and the ball joint onthe servo wheel. This will eliminate any stress (wear) on the servo and any undesired collective/cyclic mix.With the radio turned on and the trim centered, attach the servo horn and the Aileron Bellcrank Pushrods (F).Some slight adjustment may be necessary to have the swashplate sit level or 90 degrees to the main shaftwhen viewed from the the front or back. Move the Aileron stick completely in both directions to insure thatthere is no binding in the linkages.

For the Collective Servo, use threadlock on the nut only to attach one steel ball with one M2 Hex nutto the servo horn at a distance of 10-12mm from the center of the servo. With the Collective/Throttle stick onthe radio in the center press the servo horn onto the collective servo so the ball is at 75-80 degrees to the servoas shown. Attach the Collective Arm Pushrod (D) and move the Collective stick completely in both direc-tions to insure that there is no binding in the linkages.

10-15

Cut this portion ofthe servo wheel off.

90

These pitch settings will be adjustedlater with a pitch gauge.

As the collective stick is movedfrom the low position to the

high position, pushrod D movesbackwards as the servo turns

clockwise.

As the aileron stick is moved tothe left the servo turns clockwisetilting theswashplateto the leftwhenviewedfrombehindthe helicopter.

Setup and ConfigurationStep 6-4 Aileron & Collective Linkage

Aileron Stick Collective Stick

Steel Ball for ServosCNLR10132.0Hex

31

The elevator pushrod controls the tilt of the swashplate forward and backward which causes the helicopter topitch forward or backward ( hence fore-aft cyclic pitch ).

Use a servo horn in the shape of a cross and trim the 3 of the 4 arms off. Using threadlock on the nutonly, install one steel ball and one M2 Hex nut at a distance of 10mm from the center of the servo. With theradio on and the elevator trim set at the center, attach the elevator pushrod (E) to the elevator bellcrank, thenattach the servo horn at an angle of 10-15 degrees from the center of the servo (towards the front) The offsetenables an equal throw of the swashplate. It is important that the swashplate sit at 90 degrees to the mainshaft when viewed from the side.

Setup and ConfigurationStep 6-5 Elevator Linkage

Elevator Servo

Pushrod E

As the elevator stick is movedupwards the servo rotates clockwiseas the elevator pushrod movesbackwards tilting the swashplateforewards.

Elevator Stick

When trimming the helicopter for stable and stationary hoveringusing the electronic sub-trim on the transmitter, typically the elevatorservo is labeled backwards. Conventions typically use U for up andD for down. Intuition tells you that if the helicopter is moving back-wards then a little U-up trim is needed. Be careful, as in reality totrim the elevator to stop the backwards movement, the value for D-down needs to be increased.

We have mentioned to only use threadlock on the nut only for thesteel control balls for the servo horns. The reason is the plastic usedin the servo horns becomes very brittle when regular locktite is used,it is better to make sure it does not contact the plastic.

Steel Ball forServosCNLR1013

2.0Hex

Install one steel ball into the servo arm on top securedwith one M2 Hex nut.

32

Pushrod G

Rudder Servo

The rudder pushrod changes the pitch of the tail rotor blades to increase or decrease the torque compensationand to rotate the nose of the helicopter about the main shaft.

Use a servo horn in the shape of a cross and trim 3 of the 4 arms off. Using threadlock on the nut only,install one steel ball and one M2 Hex nut at a distance of 10-14mm from the center of the servo. Thread thefront part of the tail rotor control pushrod (the shorter part) (G) through the rear guide in the upper frames.Thread it into the plastic hex connector and attach the ball link to the servo end. Having the radio on and therudder trim centered, press the servo horn onto the servo set at 90 degrees to the servo and align the rudderbellcrank to 70 degrees as shown in the diagram.

The front rudderpushrod (short) hasto pass throughhere first before itcan be attached tothe long pushrodand connector.

As the rudder stick is moved tothe right the rudder servo will

rotate clockwise and thepushrod will move backwardsincreasing the thrust in the tailblades rotating the nose to the

right.

Tail Pitch Control Rod & Connector [HW3064C]

800

Setup and ConfigurationStep 6-6 Rudder Linkage

The length of the rudder pushrod is slightly different with each scale model, as defined by the length of the tailboom. In each of these named scale models, the rudder pushrod length needs to be trimmed, which is easy asthere is plenty of thread length on each end of the pushrods. Trimming up to 5mm is suggested on each end, butget the pushrod in place first to see exactly how much to trim, remember to allow for some adjustment.

Airwolf, Agusta 109, Bell 222, Long Ranger, Bell 47G II

Rudder Stick

Steel Ball forServos

CNLR1013

2.0Hex

The accuracy of the rudder pushrod really comes down to thetype of gyro that will be installed in the scale model. The scaledie-hards recommend flying with a regular rate gyro, read notHeading-Hold as the model will fly much more realistic in termsof the tail gracefully following the nose. This is the truth but ourgeneral recommendation is to get a gyro that offers both Heading-Hold mode and Rate mode.

Set the model to fly in rate mode by adjusting the length of thepushrod until the nose remains straight. Only use the mechanicaltrim to adjust for changes in windspeed during a particular day.

33

The Main Rotor Blades in the are pre-built and balanced, the only work required is to glue the blade grip rootends to the blades ( Please note that this step is necessary to insure the blades will not separate from thehelicopter during flight!! ). Temporarily install the root ends ( see note ) onto the blades by cutting the cover-ing over the holes and using a pencil, mark the outline of the plastic parts on the covering. Remove the rootends and mark a second line about 3mm inside the first and trim away this internal portion of the covering witha sharp hobby knife. Using some sandpaper roughen the plastic root ends and glue them in place with Slo CAor slow epoxy glue. Install the blades onto the rotor head to dry. This will insure the thickness is correct whenfinished.

Using threadlock on the nut only, attach one steel ball with one M2 Hex nut, to both the Throttle servo horn andthe Throttle Extension from Step 3-8. Position the ball at 10mm from the center of the servo and in the outer-most hole on the metal throttle arm. With the radio on, the throttle stick centered and the trim in the center,press the servo horn onto the servo so the ball is at 90 degrees to the servo ( the hovering position ). Move thethrottle stick to the low/idle position and press the shorter straight section of Throttle Pushrod (B) onto the steelball on the carburetor lever only at this time. Move the throttle stick to the low/idle position and lower the trimfully down, while holding the loose end of pushrod (B), check that the ball link centers exactly over the steel ballon the servo horn. If necessary, increase or decrease the throttle ATV low setting to bring them into alignment.The external trim on the throttle stick will allow for the engine to idle well, yet shut down the engine when thetrim is fully lowered or a “Throttle Cut” switch is thrown. Repeat the procedure for the throttle stick at 100%-fullpower position. Remember that it is important that the servo does not bind. If the ATV settings are more that 10points different, it is better to reposition the carburetor lever.

Shut Down - Trimfull down

Full PowerOpen 100%

Hover-Carbopen 50%

0% Idle - Trim atMiddle Hover

50%

100% FullPower Idle-Carb open

aprox. 1mm

Carb closed

ThrottleServo

Pushrod B

Sand both theplastic root ends

Cut awaythis portionof thecovering.

HW3190(Main blade set) Trailing Edge

of Blade

Leading Edgeof Blade

Main BladeAssembly

Note: The plastic blade grips have a top and a bottom which are different when viewed fromthe large end. Test fit the parts to be sure that the total thickness of the blades are 14mm.

Use Slow CAglue or Slow

Epoxy

Setup and ConfigurationStep 6-7 Throttle Linkage

Step 6-8 Assembly of ARF main blades

As the throttle stick is movedfrom the low position to the

high position, pushrod Bmoves backwards as the servo

turns counter clockwise.

Throttle StickSteel Ball forServos CNLR1013

2.0Hex

LongerStraight

ShorterStraight

34

Having completed all the assembly for the helicopter mechanics, it should be disassembled now for installationinto the scale fuseage. Included with this assembly manual is a detail manual for the particular scale helicopteryou are building. The detail manual will cover all the necessary steps to prepare the fuselage to recieve themechanics.Gyro: Mount the gyro on the radio tray. A different arrangement from the picture may be required to mounteverything. If using the PG2000 II, the gyro can be mounted between the collective & throttle servos andthe right servo frame sideplate. It is extremely important that the gyro is attached using only the supplied twosided tape onto a clean flat surface. Keep all wires and components away from the gyro housing. Do not usestraps or elastics to secure the gyro. Install the gyro using at least a 1/8” double sided foam tape (supplied withgyro). Put a full strip along the bottom of the gyro unit and press onto the surface. For a good bond make sureboth surfaces are clean and dry.

M4x30 CapScrews x 2M4 Locknuts x 2

When attaching the main blades, the directionof rotation is clockwise, when looking from thetop of the helicopter.

Radio Components & Balancing

Balance is the most important part in maintaining a safe, reliableand vibration free helicopter. First check the blades for balance.This can be done on a balancer but can also be done directly onthe helicopter by tipping the helicopter on its side at the edge of atable and attaching the blades with two M4x30 Socket CapScrews and M4 locknuts. Temporarily remove the bolt to securethe autorotation bearing so the head spins free ( remember toreplace this bolt!! ). If one blade stops at a spot lower then theother, add some tape to the lighter (higher) until they balance atthe same level. The same procedure can be used to balance theflybar without the main blades attached.

Balancing the Rotor Head & Attaching Main Blades

Receiver, Battery Pack & Antenna RoutingUsing foam rubber, wrap the battery pack & receiver. Schweizer 300 & Bell 47G II,using two #64 elastic bands, looped through the front of the top servo tray, secure thecomponents to the two hooks on the lower servo tray. Collect the servo and gyro wiresand plug them neatly into the receiver. Tie these wires neatly together using small tiewraps. Depending on your equipment, the switch can be mounted on the providedbracket or on the lower side frame with the double sided foam tape. For the Airwolf,Agusta 109, Bell 222, Long Ranger and Twinstar, the reciever and battery pack needto be secured forward of the mechanics inside the fuselage.

Distance A Distance B

Flat Table Surface

Bolt the blades together and support by the ends of thebolt off a flat surface. If one blade tips to one side addsmall pieces of tracking tape until both blades hang anequal distance from the table (Distance A = B). At-tach the Main Blades to the helicopter using two4x30mm Socket Head Cap Screws and M4 Locknuts.

**Blade Bolt tension on the main blades should beset by tightening the bolts a little at a time until theblades will hold straight out as the helicopter istipped on its side and a light shake will cause themto move. Too tight and a vibration may occur, tooloose and a boom strike can happen. Tail bladescan be set much looser.

Schweizer 300 &Bell 47G II only!

35

Setup and Installation of PG2000 IIR Remote Gain Gyro (purchased separately)

2. Turn off power to the transmitter and receiver. Disconnect therudder servo from the receiver and connect the gyro wiringharness. Connect the black lead from the gyro to the rudderchannel on the receiver, the red lead to the Gear/Aux channel.3. Insure your throttle/collective stick is at the bottom and turnon the power of the TX and then the RX. The green LED on the topleft corner of the gyro will flash rapidly for 5 seconds. During thistime do not move the helicopter or the rudder stick. The greenLED will become solid when the gyro has initialized. Later, whenhovering, trim the rudder channel using your trims or sub-trims andrevo-mixing for no drift at all collective settings.

1. Disconnect the tail pushrod from the rudder servo and checkthat the pushrod moves smoothly, requiring only a gentle force tomove through the entire range of movement. Make necessarychanges if needed.2. Following the tail rotor instructions, set the pushrod length sothe pitch slider is centered within it’s movement range and hasthe proper 5° of tail pitch to hold the helicopter straight in a hoverwhile the collective/throttle stick is at the hovering position.3. Position the control ball onthe servo arm to achievemaximum mechanical throw(10-18mm from center). Forbeginners getting started use10-14mm.

90°

Futaba / Hitec SwitchPosition 0 BackPosition 1 FrontGyro Direction R

JR / Airtronics Z SwitchPosition 0 FrontPosition 1 BackGyro Direction N

The Gain settingcorresponds to theswitch position on theradio however thePG2000 IIR is uniquein that the ATV controlsthe actual gain settingfrom the transmitterwhile the Gain Resolu-tion adjustment on thegyro allows for finetuning your setup.

Start with setting the Gain Resolution at 50%. Bring the helicop-ter to a hover and keep increasing ATV in Position 0 until the tailstarts to oscillate (hunt). At this point reduce ATV setting slightly(5-10%). To set Position 1 (forward flight), bring the helicopterinto forward flight and continue to increase ATV until the tailoscillates (hunts), again at this point reduce slightly (5-10%).Due to the range differential, the two ATV settings may appear tobe the same, but Position 1 is a lower setting to accomodate theforward speed & higher rotor speed.

Position 0 Hovering Range 35% - 100%

A. If hunting occurs at less than 65% while hovering - thenreduce the Gain Resolution pot on the gyro.B. If no hunting occurs at 100% in hover - increase the GainResolution pot. If no hunting occurs at 100% Gain Resolutionthen move the rudder pushrod connection one hole outward onthe servo arm.

Only use aplastic screwdriver to makechanges on thegyro switchesand pots.

Helicopter Servo Setup:

Gyro Configuration & Setup:

Adjustments:

Gain Settings:

Mechanical Gain:

Revolution Mixing:Due to the high sensitivity of the piezo gyro, the revo mix settingswill be lower than the default setting in most radios. To correctlyset for the UP direction, hover the helicopter and apply full throttle/collective and watch the tail rotation. Again for the DOWNdirection, hover at a higher altitude lower the power/collective stickand watch the rotation.

Nose turns left increase revo value to increase tail pitchNose turns right decrease revo value to decrease tail pitch

Receiver

Rudder Servo

PG2000IIRRed Lead -Gear/Aux Switch

Black Lead - RxRudder Channel orcontrol surface.

Connect toServo

The connectors on the gyro have been selected to be universalfor the range of radios and servos on the market.Warning, if any radio system is used other than those listed makesure same polarity is maintained and double check your connec-tions, otherwise you risk damaging the PG2000 IIR gyro.

Rudd Gear/AuxServo Reverse N NTravel* (ATV or H 100% 100% EPA) L 100% 100%Revo Mix Up 30%

Down 20%

The PG2000 IIR is truly “plug and play” with your radio, the follow-ing chart shows the basic settings for your transmitter.

Connections:

Transmitter Settings:

1. Connect the tail rotor servo directly to your receiver. Turn on thetransmitter and receiver. Set all transmitter subtrims, trim offsetsand mechanical trims to zero (neutral). Move the collective stickto the hover position (usually 50%) and install the servo horn inthe mid position (such that there is equal pushrod movement ineach direction.

Final Connections:

Pirouette Rate AdjustmentYou may wish to have a faster or slower yaw (pirouette/rudder)rate then provide with these initial settings. As this is a “yaw rate”and not a “heading hold” gyro. One can set the servo to “over-drive” it’s throw in order to increase yaw rate. In the air, a yaw rategyro, will have continual feedback from the piezo element workingthrough the gain circuit to limit the throw of the servo. Firstincrease (for faster) or decrease (for slower) the rudder ATVsettings to achieve the desired rate. If you require a greatersetting then move the rudder control pushrod attachment pointfarther from the center of the servo arm (faster) or closer to thecenter of the servo arm (slower).

Position 1 Forward Flight Range 20% - 85%

10-18mm

GainResolution

36

Travel Adjustment ( endpoints ) commonly called ATV and EPAUse endpoint adjustments to adjust how far the servo is allowed to move in either direction. Try to always keepthe same amounts on each side of center. If binding occurs simply reduce the travel in that direction or use asmaller servo arm . ** Note: by changing one side only (high or low stick) the servo travel is no longer equalwhich may result in an improper control response. It is better to set the high/low adjustments the same, or makeactual pushrod adjustments.

TrimsThe trims on the outside of your transmitter areused to fine tune the servo center positionswhile testing in-flight. If thetrim has to be moved more than5 or 6 divisions then mechanicallyreadjust the linkage length toset the trim back in the center.

ExponentialThe exponential function allows you to adjustthe sensitive of the cyclic controls around thecenter of the stick position. This should be leftat 0% (linear) until all trimming is complete.

Pitch & Throttle Curve AdjustmentsThese curves are adjusted in order to achieve a constantrotor speed at all collective pitch settings. This willreduce the amount tail rotor compensation during flightand aerobatics and keep the engine always at its optimumpower RPM. This can only be achieved through adjustingthe individual values which control the pitch and throttleat a given stick position until a constant rotor speed isachieved.

Servo Direction (Servo Reversing)Check that all servos move in the correctdirections.

Dual RatesFor beginners ( using the flybar weights ) thedual rate values should be set at 100% forboth switch positions until hovering has beenmastered.

Position #1: (high rate) 100%Position #2: (low rate) 75%

Now that the servo installation into the helicopter is finished the following pages should be reviewed. Asvarious types of radios can be used to setup the helicopter, some of the following information may not apply.

Final Adjustments - Radio Setup

Pitch Curve AdjustmentThe following chart shows the values for the collectivepitch measured in degrees which are made on the heli-copter using a pitch gauge. The Travel Adjustmentfunction (if available makes these settings easy).For the beginner it is recommended to set the low stickposition to 0 degrees to avoid damaging the helicopterwhile reducing the power during the first few flights.These settings will need slight adjustment to keep thehelicopter at a consistent height at mid stick.

Flight Setup Method Low Pitch Hovering High PitchMode (low stick) (mid stick) (high stick)

N Beginner 0 5 9N Hovering -2 5 9H Autorotation -5 5 12

Suggested Pitch Curve Values

( N - Normal flight mode, H - Throttle hold-autorotation )

Note** In order to avoid binding at high pitch angles the flybar controlarms may need to be reset at an angle of 10-15 degrees down fromparallel.

Throttle MixingIf your radio has some mixingfacilities, it is recommended thatyou use them to mix throttle withsome other controls for smoothzflying. Set the mixes so that theyadd throttle when using fore-aftcyclic (elevator), left-right cyclic(aileron) and tail rotor. (rudder).Be warned about servooverdriving.

37

Hovering - ( linear ) Normal Flight Mode

Aerobatic Flying - Flight Mode 1

Autorotation - Throttle Hold

39

Pitch Curve

Low Mid High

5

Pitc

h R

ange

Stick Position

-2

9

-5

Low Mid High

Pitc

h R

ange

Stick Position

9

-5

Low Mid High

12

Pitc

h R

ange

Stick Position

5

-5

Before making accurate pitch readings or aligning paddles, the helicop-ter should have all linkages attached at the factory normal settings withthe servos connected, working and moveable to the endpoints of theservo without binding. Also have the swashplate set level in the fore/aftand left/right directions. Turn the radio on and take different readings atthe different throttle/collective stick positions.

1. Loosen the thumb screw on theback side of the gauge, open thejaws and position the gauge onthe blade near the rotor head,see photo#1.

2. Position the flybar perpendicu-lar (90o) to the main shaft.

3. Take 3 readings: at low pitch,at hover pitch and high pitch.

4. To read the blade pitch, whilelooking at the gauge in photo#2,align the bottom or top bysighting the edge of the gaugeparallel to the flybar. Whenthese are parallel, read the valueat the pointer on the scale.

5. Repeat this process for theopposite blade, make changes inthe radio or in the length ofpushrod C if necessary.

Photo #2

Sighting Edges A or B

A

B B

A

Photo #1Takereadingoff scale.

1. Make sure the flybar is centered in the rotor head using a ruler. Install the flybar control arms and paddles on

each side. Leave the setscrews on the control armsslightly loose so they

rotate but do not slide.2. Disassemble the center part

of the pitch gauge and slideone paddle gauge on eachflybar paddle. Adjust thepaddles until both gaugesare parallel to each other,as in photo#3.

3. Make sure the swashplateis level, align the paddlesto the flybar control armsand tighten the set screws.

Flybar PaddleAlignment Gauge

Photo #3Para

llel

Using Pitch & Flybar Paddle GaugeCN2026 (Purchased Separately)

Pitch Gauge

All pitch gauge readings should bemade using a flybar lock to maximizethe accuacy of the readings and pitch

settings. Optional Flybar Lock CN2070makes this easy.

37




39

Pitch Curve

Low Mid High

5

Pitc

h R

ange

Stick Position

-2

9

-5

Low Mid High

Pitc

h R

ange

Stick Position

9

-5

Low Mid High

12

Pitc

h R

ange

Stick Position

5

-5







Photo #2


A

B B

A








Photo #3Para

llel


Pitch Gauge



37




39

Pitch Curve

Low Mid High

5

Pitc

h R

ange

Stick Position

-2

9

-5

Low Mid High

Pitc

h R

ange

Stick Position

9

-5

Low Mid High

12

Pitc

h R

ange

Stick Position

5

-5







Photo #2


A

B B

A








Photo #3Para

llel


Pitch Gauge



38

The revolution mixing function allows the helicopter to climbor descend without the tail rotating. There is a high & lowsetting on the helicopter radio.The values shown will vary depending on engine, blade pitchand fuel but provide a starting point for the beginner. For eachflight mode setting, there will be different Revo-mixingamounts. For forward flight the settings will be lower thanhovering due to the aerodynamic forces effecting the helicop-ter. Here is a starting point for revo values:

Tail Rotor Setup

Problem: Not enoughpitch in tail rotor tomatch torque setting ofengine.Action: Increase pitch byshortening the rudderpushrod. If the yawing isminimal, then one canapply some right ruddertrim at the Transmitter.

1 Nose rotatesleft at hover.

2 Nose rotatesright at hover.

Problem: Too muchpitch in tail rotor tomatch torque setting ofengine.Action: Decrease pitchby lengthening the rudderpushrod. If the yawing isminimal, one can applysome left rudder trim atthe transmitter.

What separates airplane radio equipment from thehelicopter version is in the control of the individualcurves discussed earlier and in the Revo-mixing.Take a moment to consider the helicopter hovering infront of you - tail in.

Once the tail rudder pushrod is adjusted correctlyso the tail does not rotate ( don't consider wind now ) therevolution mixing can be adjusted.

These values correspond to the total travel for the tail rotorpitch. To adjust the high setting, hold the helicopter at hoverand increase the throttle/collective to maximum so the heli-copter climbs steadily. Notice the direction the nose rotates:

High Stick Setting: 40Low Stick Setting: 20

Normal FlightMode

Gyro Gain AdjustmentThe gyro assists in holding the tail rotor, actually compensat-ing for changes in wind direction or quick stick movements.

First check that the gyro is installed correctly bywatching the rudder servo. While holding the rotor headmove the rudder stick to the right and observe the directionthe servo arm moves. Now quickly rotate the nose to the left,the servo horn should move in the same direction as it doeswhen given a right stick command. If the rudder servo hornmoves in the opposite direction, reverse the gyro direction.

Generally the starting setting for the gyro gain is60%, keep increasing the gain setting until the tail starts wagback and forth, then reduce the setting slightly.Problem: Tail rotor makes sudden uncontrolled rotation.Solution: Reverse gyro direction switch.

Pilot

Pilot

After several tanks of fuel theengine will be run-in, at thistime you can modify throttlesettings. Remember that thesmoother the engine the lessadjustment required. Not allengine /muffler /fuel combina-tions are the same which willshift some of the values shownbelow.

Aerobatic Flying -Flight Mode 1

Low Mid High

50%

0% Idle

Pow

er O

utpu

t100%

40%

Stick Position

Throttle Curve Adjustments

100%

0% Idle

Hovering - ( linear )Normal Flight Mode

50%

Pow

er O

utpu

t

10%

Aut

orot

atio

n

Low Mid HighStick Position

Revolution Mixing (inhibit for heading hold gyros)

left increase revo value to increase tail pitch.right decrease revo value to decrease tail pitch.

Nose rotates

High & Low

To adjust the low setting, start from a high hover anddecrease the throttle to descend, notice which direction thehelicopter rotates.

39

Fuel 15-30% Helicopter fuel is recommendedas it contains more oil. Use a fuel filter betweenthe fuel gallon and the heli to remove any dirtthat could stall the engine. Fuel the helicopterby removing the fuel line from the carburatorand replace when finished.Needle Valve Following the engine manufactur-ers instructions, turn the main needle valve untilclosed and open to the setting the instructionscall for. Different engines will have differentsettings.Radio Always turn the transmitter on first,then the helicopter & gyro, When finished,reverse the procedure, first turn off the heli &gyro, then the transmitter. If the radio actserratically or intermittently, find the problembefore starting the engine.Glow Plugs Remove the canopy (or use theoptional remote glow plug connector) and connectthe 1.5V glow driver to heat the glow plug.Warning!! glow plugs operate at 1.5V not 12V.

Engine Before starting the engine, check that thecarb barrel is rotated to the idle setting and makesure the electric starter is turning in the counter-clockwise direction.

Starting If you do not already have a 6mm hex startwand, you will need the optional CN0426. Set the TXfor low throttle with the trim centered. Holding therotor head in one hand, insert the hex shaft into thecoupler and press down slightly to engage the startingshaft into the fan. Engage the starter until the enginestarts. If the engine does not start recheck all previouspoints. Remove the start wand using the two stepsystem described on page 10. NOTE: The main bladesshould not turn until the engine RPM is above idle.Stopping To stop the engine, with the throttle stickin the low position, move the trim all the way to thelow position or toggle “throttle cut” switch.

Starting Your Engine

First Flights For the beginner pilot, a training pod is strongly recommended to assist in learning tohover the helicopter with substantially reduced risk of crashing. Beginners should also break in the enginewithout the fuselage. These systems provide the training capability to allow pilots to become familiar withthe helicopter controls and how they relate to the behavior of the helicopter before actually leaving theground.

Pitch On page 39, you set the pitch range using apitch gauge. Once the helicopter is flying the pitchsetting have to be fine tuned. Using appropriatetraining gear, increase the throttle until just before thehelicopter lifts off. Sight the rotor disk from 15' back.If there appears to be 2 rotor disks then adjust PushrodC (scratch a “1” on one blade grip and blade root toavoid confusion) until only one disk appears. Usingcolored tape mark one blade so you can adjust thecorrect blade.

Adjusting the Blade Tracking

Q. The engine does not turn easily with the starter.A. The starter battery may be too weak or the engineis flooded. For flooding, remove the glow plug andturn the engine over several times to clear the com-bustion chamber of fuel and retry.Q. The engine rotates and tries to start but doesn't.A. The glow plug may be getting old. The glow plugbatteries are weak. The engine may not be gettingenough fuel or too much fuel. The starter may beturning the wrong direction.

If the Engine Does Not Start

Q. The engine just does not start.A. The glow plug may be burned out. Fuel may notbe getting to the engine, check for a clogged fuelline, dirt in the carburator or the main needle needsto be opened out slightly.Q. The engine starts but immediately stops.A. There is a clog in the fuel line, the carburatorbarrel is not open enough at idle. Open the throttletrim by 1-2 clicks as the main needle is set too leanHelicopter engines have a low speed needle which isfactury set, beginners should not adjust it!!

Before Flying your Scale Helicopter

41 39












41 39












41

40

OverheatingIt is worth mentioning that the scale helicopter will always have an engine exhaust exiting the fuselage at thebottom of the mechanics. Be warned that trying to route the engine’s exhaust to a scale location at the rear or thetop of the fuselage is extremely dangerous. Any type of exhaust extension should be limited to 2-3 inches, anylonger will significantly reduce power to the point that the engine will overheat. It is like a time bomb, the enginewill quit at some point and can severly damage the fuselage. Just don’t do it.

Exhaust HoleThe drawing below shows the location of the exhaust hole for the optional 30 size scale muffler [CN3058]. Forthose that are installing the 46/50 engine, the center location of the exhaust will need to be moved. The templatecan be traced from this page and laid directly on the bottom of the fuselage, overlapping the landing gear bolts,then the hole for the scale muffler exhaust can be made. Our recommendation is to use a grinding bit on a moto-tool starting from the center and working outwards.

Fuel ProofingAfter any holes are made in the fuselageafter painting, it is strongly recommendedto seal the opening with clear or matchingcolor paint. Raw fuel, especially the highnitro-methane fuels can easily start to eataway at the painted surface leaving aunsightly stain or run in the paint.

Any wooden parts that are installed insidethe fuselage in terms of formers or railsshould similarly be fuel proofed. Gener-ally this can be done before or after thefuselage is painted. If afterward, a 1:2mixture of Epoxy glue and rubbingalcohol mixed to a watery consistencymakes an excellent combination thatremains lightweight and will sufficientlyprotect the wood.

Fueling System RoutingAttention to the fueling system will avoidalot of problems later. The only method toaccess the fuel system is through one ofthe windows in the side of the fuselage. Apopular method to fuel the helicopter is touse a 3-way valve between the carburetorand the fuel tank. This will allow the 3rdline to be used for fueling and can mini-mize any fuel leakage on the inside of thefuselage. This method also requires a fuelline stopper or lock to be closed whenfilling the fuel tank.

The final hole should be closeto 1 mm larger than theoutside diameter of theexhaust tube on the muffler.This will prevent any flexing ofthe fuselage in flight to comeinto contact with the muffler,resulting in a high frequencyvibration which will lead toearly failures on the mechan-ics. It will also avoid anymelting of the fuselage.

Exhaustlocation thatcorresponds

to 30 sizeCN3058

scale muffler. 14.5mm

143mm

77mm

42mm

14mm Dia

41

(1) Collective & Throttle: Slowly raise thethrottle stick, the helicopter should lift off at halfstick. If it tends not to lift off, increase the hoverpitch and/or hover throttle settings on the radio. Ifthe helicopter lifts off before mid stick decreasethese settings.

(2) Rudder: When the helicopter is ready to takeoff, trim first for no yaw, then use the rudder stickto control the Left & Right Yaw axis. Note, nowis a good time to make the final adjustments onthe gyro (see gyro manual).

(3) Elevator: If at hover the helicopter tends tomove forward, move the trim down, if it movesbackward move the trim upwards Use the eleva-tor stick to control this fore-aft axis.

(4) Roll (Aileron): If at hover the helicoptertends to move left, move the trim right, if thehelicopter moves to the right move the trim left.Move the Aileron stick to control the helicopterRight-Left movement.

PRE-FLIGHT CHECK UP & TRIM ADJUSTMENTS

All trim adjustments are to allow you to liftthe helicopter straight up and can be madewith one click or detent at a time on theradio.

Hovering When all is set, ready and checked, attach your training gear/pod and start the engine.(1) Place the helicopter pointing into the wind and stand behind the model about 15' away - tail pointing to you.(2) Always watch the nose of the helicopter, move the rudder left and the nose should move left.(3) Start by increasing the throttle slowly until the helicopter rises 2-6 inches off the ground then set it back down.(4) Repeat this process until you become comfortable holding the model in the same spot for a few seconds. Then land and take a deep breath.When you become more comfortable, you can gradually increase altitude ( be very careful not to get too high ) asyou are now just practising taking off and landing. This is the most basic but required skill to learn.

Beyond Hovering It cannot be stressed enough that mastering the hovering skill is crucial to becoming a good helicopter pilot. Asyou progress in your learning, always practice hovering until you are completely comfortable in holding thehelicopter in any position or altitude. Perfecting hovering enables you to more easily and safely move on to all theother types and styles of flying, from fast forward flight to loops and rolls and anything you want to do with yourbeautiful scale helicopter. Have fun!!

Basic Hovering

43

Pre-Flight Checklist1. After turning the radio on, move each servo separately, looking for unusual or excessive movement.2. Clean & lubricate the main shaft above the swashplate & the tail output shaft area of the pitch slider.3. Inspect the main and tail rotor grips for play or binding.4. Turn the main gear in both directions to feel if a problem is developing in the drive train.5. Check the glow plug and fuel lines for signs of wear.

41









Basic Hovering

43


41









Basic Hovering

43


42

CN2208B Metal Swashplate Anti-rotation Bracket - blackCN2208P Metal Swashplate Anti-rotation Bracket - purpleCN2212P Aluminum Tail Rotor Grips(2) - purpleCN2212G Aluminum Tail Rotor Grips(2) - goldCN2212B Aluminum Tail Rotor Grips(2) - blackCN2213 2oz Header Tank w/ Machined Mount Bracket - purpleCN2214B Air Filter (OS32-46, TT36-46)CN2215B Machined Head Button (TM) - blackCN2215P Machined Head Button (TM) - purpleCN2216 Rear Tail Rotor Servo Mount SetCN2217P Machined Color Caps - purpleCN2218P Machined Color Washers - purpleCN2221 6mm Feathering Spindle system w/ Thrust BearingsCN2400 Hurricane Carbon fiber Blades - 550mm Fully Sym - whiteCN2414 Hurricane Carbon fiber Blades - 550mm Semi Sym - whiteCN2655 RotoTech Carbon fiber Blades - 550mm Fully Sym - black weaveCN2660 RotoTech Carbon fiber Blades - 600mm Fully Sym - black weaveCN3058 Scale Fuselage HP Muffler 30 - blackCN3059 Scale Fuselage HP Muffler 46-50 - black

CN2230H4 CRASH KIT -(Main Blades, Main Shaft, Tail Boom, 1Feathering Shaft and Flybar)

CN0402 HEX START COUPLER 1CN2020L REPLACEMENT CLUTCH LINING 1HW3000 HARDWARE PACK 1HW3005A STARTER SHAFT SET 1HI3007 STARTER SHAFT BEARING BLOCKS 1HI3009 COOLING FAN 1HI3010 CLUTCH BELL & LINING 1HW3011 CLUTCH SHOES 1HW3017 ENGINE MOUNT 30 1HW3018 ENGINE MOUNT 46/50 1HI3020A COOLING FAN SHROUD (one piece) 1HW3024 COLLECTIVE PITCH LEVER SET 1HI3031A AILERON BELLCRANKS (L&R CYCLIC) 2HI3032C ELEVATOR LEVER SET 1HI3035A ADJUSTABLE CYCLIC PUSHROD LINKS 2HI3040 COUNTER DRIVE GEAR 55T 1HW3042 PRIMARY DRIVE SHAFT 1HW3045 ALLOY DRIVE GEAR 13T 1HW3045A ALLOY DRIVE GEAR 14T (Bell 47G II) 1HW3050 AUTOROTATION BEARING SET 1HW3053A 10mm MAIN SHAFT 1HW3054A MAIN SHAFT LOCK RING 1HI3056 MAIN GEAR 1HW3057 TAIL DRIVE BEVEL GEAR 1HW3059 TAIL DRIVE PRIMARY SHAFT 1HW3062 TAIL BOOM (Schweizer 300) 1HW3062G TAIL BOOM GOLD (Airwolf, Bell 222, Agusta 109) 1HW3062R TAIL BOOM RED (Long Ranger, Twinstar) 1HW3063 TAIL DRIVE SHAFT SET 1HW3064C TAIL PITCH CONTROL ROD & CONNECTOR 1HW3070 TAIL GEARBOX INPUT SHAFT 1HW3073 TAIL GEARBOX OUTPUT SHAFT 1HI3074 SPACER TUBE 1HI3075 TAIL GEAR SET 1HI3078 TAIL GEARBOX L&R 1HI3087A TAIL PITCH SLIDER SET 1HI3089 TAIL PITCH BALL LINKS 2HI3096 TAIL BLADE GRIP SET 1HW3098 TAIL ROTOR HUB 1HI3099 TAIL ROTOR BLADES (PAIR) 1HI3102A TAIL PITCH LEVER SET 1HI3106A TAIL CONTROL ROD CLAMPS 3HI3107 UPPER SIDE FRAMES 2HW3112C LOWER SIDE FRAMES (30-50) 2

Scale Mechanics Upgrade Parts & AccessoriesCN0426 Hex start wand - Fits on shaft or rubber insertCN0427 Hex start wand with one-way bearingCNBB1001 Ball Bearing Upgrade SetCN2005 Main Blade Transport SupportsCN2007 Trainer Pod 30-46 w/4 LegsCN2015 Hardened Tip Hex Wrench Set (1.5mm/2.0mm/2.5mm/3.0mm tips)CN2016A 4.8V Battery Monitor/AlarmCN2018 PG-2000 IIR Remote Gain Piezo GyroCN2022 Single rate micro piezo gyroCN2046 Basic Heli Setup Tool Kit (pitch gauge, blade balancer & pliers)CN2052 Accuratech Blade Balancer -blueCN2122 Carbon fiber flybar stiffeners 30CN2137 2 oz Header Tank w/ Universal Bracket -purpleCN2155 Piston Locking Tool - purpleCN2153 Machined Throttle Extension - OS32SX,46FX, TT36H -purpleCN2176 CNC machined servo arm pack (5 pcs. Futaba purple)CN2177 CNC machined servo arm pack (5 pcs. JR purple)CN2179H CNC machined servo arm pack (5 pcs. Hitec purple)CN2202 Aluminum Turbo cooling fan - purpleCN2206 CNCMachined Flybar Control Arms (2)CN2207 CNC Machined Washout Mixing Arms (2)CN2255 Ball Link Measure Tool

HW3115A SERVO MOUNT FRAME SET 2HI3122 LANDING STRUTS (Long Ranger, Twinstar) 1HW3123 LANDING SKIDS (Long Ranger, Twinstar) 1HW3127 HEX FRAME SPACER SET 1HI3129 CANOPY MOUNT & HARDWARE (Schweizer 300) 1HI3132H SCALE INSTRUCTION MANUAL 1HI3138A FUEL TANK 10oz 1HI3145 BALL LINKS (16 LONG & 6 SHORT) 1HI3146B SWASHPLATE WITH STEEL BALL END 1HI3152C WASHOUT SET 1HI3152A RADIUS LINK WITH PIN 2HI3160B ROTOR HEAD BLOCK 1HW3161A FLYBAR SEESAW SHAFT SET 1HI3167A FLYBAR SEESAW COMPLETE SET 1HI3167B SEESAW OFF SET PLATE 2HI3167C SEESAW TIE BAR 2HI3167D SEESAW BEARING CUP 2HI3167E SPECIAL BALL M3X6 2HW3170A WASHOUT PINS 30mm 2HW3173 FLYBAR 1HI3176 STABILIZER CONTROL ARM 2HI3179 FLYBAR PADDLES 2HW3180 FEATHERING SHAFT 1HI3181 DAMPING RUBBERS 2HI3184 ROTOR BLADE GRIPS 2HI3189A MIXING ARM SET 1HW3190 MAIN ROTOR BLADES 550mm (Pair) 1HW3190A MAIN ROTOR BLADES 600mm (Pair - Bell 47G II)1HW3192B LINKAGE SET - SCALE (11 RODS) 1HW3203 BRASS BEARING SET 1HW3204 THROTTLE EXTENSION 1HI3205 SERVO MOUNT TABS 10CNBB0730 Bearings 3X7X3 (Flybar, Elevator Lever) 2CNBB1030 Bearings 3X10X4 (Seesaw, Tail Grips) 2CNBB1060 Bearings 6X10X3 (Collective Axle) 2CNBB1150 Bearings 5X11X4 (Start Shaft,Tail Shaft) 2CNBB1218 Bearings 12x18x4 (Clutch Bell) 2CNBB1350 Bearings 5X13X4 (Counter shaft,Blade grips,Tail Shaft)2CNBB1980 Bearings 8X19X6 (Lower Main Shaft) 2CNBB1019 Bearings 10X19X5 (Upper Main Shaft) 2HW3050 Autorotation Bearing 12X18X16 1CNLR1010 M3 Ball joint with short standoff 2CNLR1011 M3 Ball joint with medium length standoff 2CNLR1012 M3 Ball joint with long standoff 2CNLR1013 M2 Ball joint 2CNLR1014 M3 Stainless Ball joint with short standoff (2.0 hex) 2CNLR1015 M3 Stainless Ball joint with med standoff (2.0 hex) 2CNLR1016 M3 Stainless Ball joint with long standoff (2.0 hex) 2

Scale Mechanics Replacement Parts

43

Century Upgrades

Adapts to starter shaft push into rubberinsert. Extension adapts to most starters.

Reversible Hex One Way &Hex Start System

CN0426 Standard hex wandCN0427 One-way hex start ext.

Perfect for Scale Body

CNC MachinedAluminumServoArmPack

Completely eliminate slop fromflexing servo arms (purple)

CN2176 (Fut) Arm setCN2177 (JR/Air) Arm setCN2124 Antenna

Fiber Glass WhipAntenna

Kit comes with a hollow fiber tubeand CNC base mounts that allow youto insert antenna into the tube.Antenna will be better protected andlook so cool.

These caps and washers will add alot to the looks of our Hawk IV(colors: Silver, Red, Blue, Gold,Purple, green, black 10pcs/pack)

Color Machined FinishCap & Washer

CN2217 (screw cap)CN2218 (nut washer)

Triple Ball BearingTail Blade Grips &One PieceSteelHub

Heavy duty dual B.B and a trustbearing tail grip permits solidprecise control. One piece hardensteel hub for long-lasting precisionand durability.

CN2235 Triple B.B tail assembly

Metal Aileron Bellcrank

CNQSC03 Metal aileron arms

Get more Precision aileronmovement and improved 3Dmaneuverability. (Blue)

Color Machined LockNut w/Flange

6061T6 machined hardenedlightweight aluminum lock nuts,These nuts make you look good(color: silver, red, blue, gold,purple & black 10pc pack.CN2211@ Machined lock nuts

Metal Washout Arms

CNQSC01AB Metal washout arm kit

Completely eliminate slopon control surfaces. (Blue)

CN2230H4 Scale crash kit

Crash kit includes550mm main blade, tail boom,feathering shaft, 8mm main shaft,flybar.

Crash Kit

Purple Piston LockingTool

A must for installing/ removing clutch

and fan parts on all engines.

CN2055 Piston Lock

Scale Muffler System

Designed to fit inside scalefuselage without modification.CN3058 Scale Muffler 30CN3059 Scale Muffler 46~50

4mm FlybarConversion Kit

Upgrade to a very stiff 4mmflybar to deliver crisp cyclicresponse.

CN2232 10mm Conv. kit

Carbon RudderPushrod Set

Rigid control rods for reducedlinkage related slop.

CNK347 Carbon Rod Set

O.S. Throttle Extension

Aluminum CNC machined throttleextension for OS32SXH, 46FXH& TT36H (purple).

CN2153 Throttle Extension

Tuff Landing Gear

3 Times stronger than most 30-50size helicopter landing gear. Tuffstruts act as shock absorbers tohelp reduce jolts caused by hardlandings.

CN2243 Tuff Landing Gear

Main Shaft ThrustBearing Kit

Transfers all loading from theregular radial bearings to thethrust bearings.CN2220A Thrust Bearing Kit

44

Head Button(Hawk, Falcon & Phoenix)

Left hand threadedBlack or Purpleanodized head buttonfor easy stopping ofthe rotor head.

CN2215B BlackCN2215P Purple CN2231A Slipper Clutch

Ball BearingUpgrade

Carbon Fly Bar Stiffener

Carbon fiber flybar stiffener withpurple aluminum ends willincrease precision control for allflight maneuvers. (3mm flybars)

CN2122 for Hawk IV

Metal Swash PlateAnti-rotation Bracket

Improves timing precision of theswash plate (purple or black)

CN2208P PurpleCN2208B Black

Aluminum Clutch Bell

CN2225 Clutch bell w/gearHI3010A Bell onlyHI3010B 2-Stroke Gear (26T)HI3010C 4-Stroke Gear (33T)CN2020L Clutch lining (2)

Precision Metal Swashplate

This beautiful CNC precisionmachined aluminum swashplatewill increase precision control forall flight maneuvers. (Silver)

CN2056A Metal Swashplate 10mm

SE 6 mm Head Axlewith Thrust Bearings

CN2221 Conversion Kit

CN2239C Tail Boom Servo Mount

2 oz Sub Tank w/ CNCMachined or Die-cut

Mount

CN2137 CN2213

CN2213 Machined MountCN2137 Die Cut Mount

Aluminum Turbo Cooling Fan

Increased air flow, lower enginedrag, cooler and smoother highspeed operation & cooler clutchshoes.

CN2202 Turbo cooling fan

Century Upgrades

Century Helicopter Products523 Sinclair Frontage Rd.

Milpitas, CA 95035Tel: (408) 942-9525Fax: (408) 942-9524

Web:www.centuryheli.comAll rights reserved. No part of this publication maybe reproduced, stored in a retrieval system ortransmitted in any form or by any means, electronic,mechanical, photocopying, recording or otherwise,without the prior written permission of thepublisher, Century Helicopter Products.

The 6mm spindle takes the high“G” stresses of 3D better andthe thrust bearings make forsmoother pitch control at highrotor speeds

Mount the tail servo onto thisaluminum/carbon mount for amore direct control rod path tothe tail rotor bellcrank.

CNC precision machined alumi-num clutch bell withreplaceablegear andlining

Carbon Tail Servo Mount

Machined Elevator Armw/ Ball Bearing

Incredible smooth operation andimproved design allows easyreplacement of the ball link whenslop develops.

CNQSC04 BB elevator arm

CNBB1001 Bearing upgrade

Upgrade your Hawk IV cycliccontrol systemto the number ofbearings in the Hawk SE. Nowall control bellcranks and armswill be ball bearing supported.

AutorotationSlipperUnit

This slipper unit will drive thetail rotor during autorotations,providing accurate rudder controlwhile descending and landing.

O.S. MixtureAdjustment Screws

Idle adjustment is nearlyimpossible with the scalemufflers, these mixture screwsmake the task much easier.

CN2030A Idle Screw Short

Ball Link Sizing Tool

Ball link resizing tool. Adjust-able to fit multiple require-ments. Requires a simple twistto perfectly match links to balls.

CN2215 Ball Link Sizing Tool

Ball Link Driver

A specially designed tool forquick installation and removalof plastic ball links withoutdamage.

CN2219 Ball Link Driver

Scale Mechanics Mechanics Instruction Manual 2 Table of Contents Table of Contents ..... 2...

Documents

Transcript of Scale Mechanics Mechanics Instruction Manual 2 Table of Contents Table of Contents ..... 2...