Century Hawk Pro Manual de usuario

Hawk Pro

Instruction Manual

SPECIFICATIONS



Main Rotor Diameter 49.5 in.



Tail Rotor Diameter 9.3 in.



Overall Length 46 in.



Height 16.2 in.



Engine 32 ~ 40



Ball Bearings 47

Century Helicopter Products

Designed and Developed in USA

Introduction

Congratulations on your purchase of Century Helicopter Product’s latest version of our HAWK series RC helicopter model. The

Hawk Pro helicopter is not only ideal for beginners new to the hobby, but also for the intermediate and right on through to the

expert and 3D ﬂyers. A 6 channel helicopter radio is recommended as the bare minimum to take advantage of the helicopter

programming included in these radios. You may wish to check with us or your local dealer for compatible components.

Warning

This radio controlled model is not a toy! It is a precision machine requiring proper assembly and setup to avoid accidents. It

is the responsibility of the owner to operate this product in a safe manner as it can inﬂict serious injury. It is recommended that

if you are in doubt of your abilities, seek assistance 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 correspond to speciﬁc sections of the

manual, greatly facilitating assembly. Various assemblies have been pre-assembled, only requiring the ﬁnal assembly and in-

stallation of the various sub-assemblies. The screws and nuts required for each step are packaged in the same bag as the parts

for that step. Be careful not to lose any of the hardware when opening each bag. Care has been taken in ﬁlling and packing of

each bag.

Warranty

Your new equipment is warranted to the original purchaser against manufacturer defects in material and workmanship for 30

days from the date of purchase. During this period, Century Helicopter Products will repair or replace, at our discretion, any

component that is found to be factory defective at no cost to the purchaser. This warranty is limited to the original purchaser

and is not transferable. This warranty does not apply to any unit which has been improperly installed, mishandled, abused, or

damaged in a crash, or to any unit which has been repaired or altered by any unauthorized agencies. Under no circumstances

will the buyer be entitled to consequential or incidental damages. This limited warranty gives you speciﬁc legal rights. You also

have other rights which may vary from state.

Table of Contents

Table of Contents & Introduction ................................................................................................................2

Required Items and Tools for Assembly .....................................................................................................3

Package contents ......................................................................................................................................4

Section 1 Preparing the engine ..................................................................................................................5

Section 2 Assembling the main frame ........................................................................................................5

Section 3 Assembling the servo tray ..........................................................................................................6

Section 4 Fuel tank & ﬁttings ......................................................................................................................6

Section 5 Mufﬂer & fuel tubing ...................................................................................................................7

Section 6 Flybar & rotor head assembly ....................................................................................................7

Section 7 Landing gear ..............................................................................................................................8

Section 8 Tail boom & drive system ...........................................................................................................8

Section 9 Tail boom support struts and tail ﬁn set ......................................................................................9

Section 10 Tail control rod and pitch control ...............................................................................................9

Section 11 Throttle & collective linkage ......................................................................................................9

Section 12 Cyclic servo linkage ................................................................................................................10

Section 13 Rotor head linkage .................................................................................................................10

Section 14 Connect the electronics ..........................................................................................................10

Section 15 Main rotor blade installation ...................................................................................................10

Section 16 Antenna routing ...................................................................................................................... 11

Section 17 Mounting the canopy .............................................................................................................. 11

Main sub assemblies (exploded views) ...............................................................................................12-17

Replacement part list and photos ........................................................................................................18-20

Upgrades .............................................................................................................................................21-22

Century Helicopter Products

1740 Junction Ave. C.

San Jose, CA 95112

Fax: (408) 451-1156

www.centuryheli.com

Hobby scissors

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

M3x6 Phillips Machine Screw

M - metric

3 - diameter

6 - length

M3x6 Self Tapping Screw

M - metric

3 - diameter

6 - length

M3x10 Socket Cap Screw

M - metric

3 - diameter

6 - length

3x7 Ball Bearing

M - metric

3 - inside

6 - outside

Necessary Items “Not Included” in the kit.

6 Channel Helicopter Radio or Equivalent.

#PG2000 II dual rate piezo gyro

#CN2018 (or eqivalent)

Remote Glow Adapter

#CN2222 (optional)

32-40 Helicopter Engine Tuned Mufﬂer (example #CN3033)

Required items for operation

This is the general list of items required to get started on any nitro R/C helicopter. Century produces a full spectrum of accessories and tools to

assemble your helicopter. The Hawk Pro is a mechanical cyclic collective pitch mixing type helicopter requiring a standard helicopter radio (the

helicopter radio does not require eCCPM type mixing for this model). The Hawk Pro uses 5 servos to operate critical systems. Gyroscopes are

required to operate the model safely.

Recommended Tools & Accessories

Part#CN2015 Hardened Tip Hex Screw Driver Set

Part#CN2026 Pitch Gauge with Paddle Gauge

Part#CN2034A 150 Curve Tip Ball link Pliers

Part#CN2052 Main Blade Balancer

Part#CN2054P Glow Plug Wrench Purple

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 ) + 3.0mm

Appropriate Socket Wrench

(glow plug wrench for engine shaft nut)

Hobby Scissors

Double 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

“Y” Harness for 4 Ch Airplane Radio with 5 servo

The tools and materials listed below are

the minimum needed to build the helicopter:

In addition, the following will make assembly and setup easier, and

prove useful later in your model toolbox:

Main Blade Pitch Gauge

w/PaddleGauge

#CN2026

15% or 30%

Heli Fuel 12Volt Start Battery

12Volt

Starter

Fuel

Line

Electric or Hand

Fuel Pump

Glow Driver

w/Charger

Locktite

CN2025BS blue

CN2025RS red

CN2024T

Lubrication

Needle Nose Plier

& Cutter Pliers

Glow Plug

Servo Tape

Fastener and ball bearing dimensions

Servos (5)

Receiver

Transmitter

Bettery Pack

Rotor head items

Tail section

Upper frame set

Lower frame set Servo frame set

Decal sheet

Landing gear Windshield

Fin pack

Hardware/ Pushrods

Clutch, fan & shroud

Canopy

Tail section:

•Tail assembly (complete)

•Tail boom support struts (2)

•Flybar (1)

*Antenna tube (1)

Rotor Head Items:

•Rotor head (complete)

•Flybar paddles (2)

•Paddle weights (2)

•3x3 set screws (2) (for paddle weights)

•Flybar control arm (2)

•Double link (2) (ﬂybar to washout arm)

•4x5 set screws (2) (ﬂybar control arms)

•3x6x2.5 plastic spacer (2) (between flybar control arm

and seesaw)

•3x7x3 ball bearing (2) (flybar, inside seesaw bearing

cups)

Upper frame set:

•Upper side frame assembly (complete)

•Aluminum canopy standoff (2)

•Canopy grommets (2)

•Canopy hook (1) (inside canopy)

•3X40 threaded rod (1) (canopy standoffs)

•Horizontal ﬁn upper clamp (1) (white plastic part that

connects to ﬁn)

•M3 lock nut (1)

•3x20 Socket head cap screw (1)

•M3 locknut (1)

•3x6 self tapping screw (2) (connects lower side frame

to fan shroud)

•3x12 Self tapping screws (4) (for servos)

•3x16 Socked head cap screws (4) (not used/spares)

•3x8 ﬂat washers (4)

•Rudder servo mount bracket (1)

•3x30 socket head cap screws (2)

•Grey ball link (1) (rudder pushrod forward end)

•Servo mounting tabs (7)

Clutch, fan & shroud:

•Clutch (clutch and housing) (1)

•Cooling fan (1)

•Cooling fan shroud (1)

•Long aluminum tube (1)

•Short aluminum tube (1)

•Fuel ﬁtting set (1 set)

•Tie wrap (1)

•Clunk (1)

•3x18 self tapping screw (1) (fuel cap)

•5 inches fuel tubing (1)

•5x13 ﬂat washer (1) (between cooling fan and

engine nut)

•9x14 ﬂat washer (1) (replaces thrust washer on

engine)

•3x16 socket head cap screws(4)

•3x8 self tapping screws (2)

•3x12 self tapping screw (2)

•3x6 washer head screws (2)

Hardware/Pushrods:

•1 foot fuel tubing (1)

•Pushrods (5)

•4x30 Socket head cap screws (2) (main blade bolts)

•M4 locknut (2)

•2.5x12 self tapping screws (20) (servos)

•Throttle lever (1)

•Metric allen key (3)

•Throttle pushrod (1)

•M2 short balls (7) (servo arms)

•M2 nut (7) (servo arms)

•3x25 socket head cap screws (4)

•M3 locknut (4)

Fin pack:

•Vertical and horizontal ﬁns (1ea.)

•tail rotor blades (2)

•3x16 socket head cap scews (4)

•M3 locknut (6)

•3x8 self tapping screws (2) (fin clamp underside)

•3x8 flat washer (4)

•3x9x4 thick spacer (2) (boom support to frame)

•3x30 socket head cap screws (2) (vertical fin)

Landing gear:

•Landing struts (2)

•Landing skids (2)

•M3 locknut (4)

•3x20 socket head cap screws (4)

•3x9x4 plastic landing gear spacer (4)

•3x4 set screw (4)

Canopy (1)

Windshield (1)

Decal sheet (1)

Lower frame set (1)

Servo frame set (1)

Muffler (1)

Main rotor blades (1 pair with hardware)

Package contents: Opening The Hawk Pro for the ﬁrst time

Time to inventory your Hawk Pro! The helicopter is assorted into multiple bags contained inside the box. Each bag will have some parts that are

not associated with that speciﬁc part bag. We recommend organizing all hardware and pieces and inventory them then keep them with their re-

spective bags. It is common to have a few screws and/or washers left on the side after the build.

Mufﬂer

Main rotor blades

Section 1: Preparing the engine

Remove the thrust washer that comes on the engine from the factory. Only use the

9x14 washer that comes with the fan and clutch package. Mount that washer ﬁrst and

the clutch (1.1-1.2) to the engine using thread lock. Mount the fan so the two protrud-

ing portions on the underside slide into the slots machined in the clutch (1.3). Remove

the stock engine throttle arm and use the one provided with the helicopter kit. (packed

with the fuel hardware/pushrods pack). Place the 6.5x13 Washer (packed with fan and

clutch also) between the fan and the crankshaft nut and tighten using thread lock (1.4).

In order to tighten the assembly properly, the piston must not be allowed to turn (you

can use the optional #CN2155 piston locking tool).

1.1

1.2 1.3 1.4

Piston locking tool

(optional) #CN2155

Crankshaft

nut provided

with engine

Section 2: Assembling the main frame

Using thread lock, mount the engine assembly to the engine mount in the lower side frame assembly (2.1). After the engine is installed, combine

the upper and lower side frame sections (2.2) Before bolting, attach the fan shroud securely to the frame assembly slightly overlapping the fan

shroud portion of the upper side frames (2.3). Use hardware provided to ﬁnish assembling the frames. (2.4 & 2.5). Install the canopy mounting

hardware (2.6 & 2.7) by ﬁrst threading one end of the threaded steel rod into one of the aluminum standoffs. Insert the aluminum standoff and rod

into the frame (2.6) and thread the other standoff (2.7) on until tight. The upper and lower frames are now assembled (2.8).

2.1 2.2

M3x16

socket

head cap

screw (x4)

2.3

2.4 2.5

2.7 2.8

2.6

Cooling fan

Clutch

M9x14

washer

M3x12 socket head

cap screw (x4)

M3 Washer (x4)

M3x6 self

tapping

screw (x2)

Canopy aluminum

standoffs (x2)

Threaded rod (1X)

Must use RED (strongest)

lthreadlocking compound

for engine installation.

Note:

IMPORTANT: Motor mount screws DO NOT have thread lock

yet. Loosen these screws to position the motor or replace with

optional #HW3018A for .50 size engines. 5

The M3x12

screws in

this step are

stapled to

your manual

or kit.

Section 3: Installing servos to servo tray

Insert and attach the lower throttle servo on the left side (3.1) with the output “horn” fac-

ing the front of the servo tray. Install the upper collective servo above the throttle servo

with the output facing the back (3.2). Attach the aileron servo (3.2) to the middle of the

top portion of the servo tray with the horn facing forward. Attach the elevator servo to

the left of the aileron servo horn facing rearward (3.2). Attach the power switch (3.3) to

the switch plate provided on the right hand side of the servo frame. Slide the gyro in

place (3.4). If possible, expose the gyro’s manual controls for future easy adjustment.

Attach the servo frame assembly to the main frame assembly forward section (3.5 - 3.6)

using provided hardware. Attach the rear rudder servo mount to the right hand aft sec-

tion of the upper side frame with the output facing rearward (3.7). Completed section

(3.8) depicted.

3.1

3.2 3.3 3.4

3.5 3.6 3.7

3.8

Section 4: Fuel tank

& ﬁttings

Assemble the fuel stopper (found in

the bag with the upper frames) (4.1)

by bending the longer aluminum tube

(connects to mufﬂer nipple) so it will end

at the top inside the fuel tank. Align the

short straight aluminum tube level to the

engine carburetor fuel intake. Secure

with M3x18 screw supplied in clutch/fan

package and tie wrap (4.2 & 4.3)

4.1

4.2 4.3

Front

install

servos with

M2.5x12

self tapping

screws

Screws for

switch are

provided

with switch

in radio

system

Use thread lock

M3x6 washer

head screws (2)

3x12 self tapping

screws (2)

M3x25 socket head

cap screws (2)

M3 locknut (2)

Fuel ﬁtting set

assembled

Short straight tube

(sends fuel to engine)

Long curved

tube (from

mufﬂer nipple)

Aileron servo

Elevator servo

Throttle

servo

Collective

pitch servo

Fuel line

fuel tank

pickup

“clunk”

M3x18 self

tapping screw

Tie wrap

Section 5: Mufﬂer & fuel routing

5.2 5.3 5.4

Section 6: Flybar & head assembly

6.1

5.1

Install the pressure nipple using a high temperature

adhesive (thread lock) to the top of the mufﬂer and

the 4mm plug screw to the bottom (5.1). Bolt the

mufﬂer to the engine (5.2) ﬂush (no gasket required)

using thread lock. Connect fuel tube between the

fuel pickup in the tank and the carb on the engine

with as little slack as possible (5.3). Connection

between the carb and the fuel pickup tube (short

straight) should be level (keeps fuel draw rate in

inverted ﬂight). Connect the fuel tank air tube (long

curved) to the mufﬂer pressure nipple (5.3).

Install the ﬂybar, ﬂybar control arms,

weights and paddles into the rotor

head seesaw assembly as shown (6.1).

First slide the ﬂybar in place through

the seesaw assembly. Then slide the

ball bearings included with the two ball

bearings into the seesaw cups on each

end. Then slide the M3x6 plastic spacers

on to each side of the ﬂybar. Next slide

the 2 ﬂybar control arms as shown

(6.1) Use thread lock on the set screws

connecting the ﬂybar weights to the ﬂybar

(6.2 - 6.3). Align the ﬂybar paddles and

control arms level to the seesaw assembly

(LEADING EDGE OF PADDLES MUST

GO CLOCKWISE). The assembled ﬂybar

must be the same length on each side of

the rotor head. Install the completed rotor

head to the main shaft (6.4) with one 3x16

cap screw and M3 locknut.

6.2 6.3 6.4

Using thread lock

M4x5 set screw (2)

Using thread lock

M3x3 set screw (2)

M3x16 socket head

cap screw (1)

M3 locknut (1)

Using thread lock:

Hardware provided with mufﬂer

Using thread

lock:

3x25 socket

head cap

screw (2)

M3x7 Ball

bearing (2)

Flybar

control

arm

Flybar weight

Flybar paddle

(Optional Toki mufﬂer for Toki .40 engine shown. Toki mufﬂer is

supplied with a Hawk Pro “Toki engine and mufﬂer combo”)

Leading edge

Trailing edge

M4x5 Set

screw

M3x4 Set

screw

M3x6

spacer (2)

Seesaw

assembly

(bearing cup)

Remove the 3

socket head cap

screws to open the

gearbox in order to

grease the gears.

8.1

Section 7: Landing gear

7.1

7.2 7.3

All components for installing landing gear are included with the

landing gear bag. Attach the plastic U shaped struts to the bottom

of the main frame and insert the metal skids when aligned (7.1).

Bolt the landing gear to the main frame using provided hardware

(7.2). Attach the skids only when helicopter will sit level using the

provided set screws and CA glue (7.3). At the end of this section the

helicopter should be able to stand upright (7.4).

8.2

8.3

M3x16 socket head cap

screws (4)

M3 Locknut (4)

M3x4 socket head set

screws (4)

CA Glue

M3x30 socket head

cap screws (2)

M3 Locknut (2)

M3x16 socket head

cap screws (2)

M3 Locknut (2)

Place a small dab of gear grease

(synthetic hydrogen grease)

between the two plastic gears.

Section 8: Tail boom & drive system

The tail section (8.1) is completely assembled

and only requires to be attached to the main

frame (use a small amount of gear grease

inside the tail gearbox). Slide the tail boom

into the aft section of the main frame with the

tail rotor on the right side of the helicopter

(8.2) twisting slightly until the notches in the

tail boom align with the standoffs on the inside

of the main frame. Once installed, the drive

system should be complete and the main/tail

blades should rotate when the main gear is

turned. Attach the tail blades to the tail blade

grips (8.3) using the hardware provided.

Note:

7.4

White coupler located

inside the upper frames

Section 10: Tail control rod & pitch control

Use the radio to center the rudder servo. Mount the servo arm/horn perpendicular to

the tail pitch control rod threading the forward tail control rod ball link (found in the

upper frame bag) onto the pushrod (10.1). Adjust link at rear of tail system so that

the tail pitch slider is roughly centered on the tail output shaft (10.2). Connect the

ball links to the control balls at either end only when the rudder servo is centered

and the pitch slider is centered. Align the tail pushrod guides to help keep the

pushrod traveling without ﬂex (10.3). Fix the favorable positions of the pushrod

guides (use CA glue) to avoid shifting/binding. Pushrod should travel through the

horizontal ﬁn clamp on the right side (10.2 & 10.4).

10.1

10.2 10.3

Section 9: Tail boom supports & tail ﬁn set

Attach the tail boom support struts to the base of the side frames using the

plastic spacer on the outside of the frame (9.1) . Attach the horizontal ﬁn

(hardware found inside ﬁn bag) and tail boom supports onto the horizontal

boom clamp (9.2 use the white plastic piece found with the canopy grommets

between the ﬁn clamp and the ﬁn). Screws are provided for mounting the verti-

cal ﬁn in the package containing the ﬁns (9.3).

9.1

9.2 9.4

Section 11: Throttle & Collective linkage

*Pushrod measurements include ball links from plastic end to plastic end.

Before any pushrod adjustments are made center both sticks and all

servos on the transmitter. Attach the 103mm throttle control rod to the

throttle servo and the throttle arm on the carburetor. Be sure that when the

throttle collective stick is in the middle, that the throttle servo arm is straight

up, and that the carburetor barrel is half open and its control arm is also

pointed straight up. Adjust the collective control rod to 102mm for training

or to 100mm for 3D. Attach this rod to the collective control lever and col-

lective servo. Be sure the collective servo wheel is attached so that at mid

stick it is pointed straight up.

M3x8 Self tapping screw (2)

M3 washer (2)

9.3

M3 plastic spacer (2)

M3x16 socket head cap

screw (2)

M3 locknut (2)

M3x12 Self tapping

screw (2)

M3x20 socket head

cap screw (2)

M3 locknut (2)

Guides should be helping the pushrod

keep it’s shape when being ﬂexed. All 3

guides may not have to be used.

10.4

Rudder pushrod should travel through

the tail boom clamp guide (this is the

way it is pre-assembled).

Collective pitch

servo

Throttle

servo

Rudder

servo

Section 13: Rotor head linkage

Before any pushrod adjustments are made center both sticks and servos on the

transmitter.

Section 12: Cyclic servo linkage

Before any pushrod adjustments are made center both sticks

and servos on the transmitter.

*Pushrod measurements include ball links from plastic end to plastic end.

Attach two 104mm pushrods to the short balls on the swashplate and to the short

balls on the bell mixers on the main rotor blade grips.

NOTE: For faster cyclic response in 3D you may want to change the bell/hiller ratio by

moving the A-arms from the washout assembly to the short balls on the inner star of

the swashplate and attach these 106mm rods to the longer balls on the inner star.

Section 14: Connect the electronics

Refer to the instructions for your transmitter and other radio components for the correct

numbering of channels before connecting . Plug in the switch, servos and gyro to the

radio receiver. Wrap the receiver and the battery pack with the proper foam protection

recommended by your radio manufacturer and secure to the top of the battery/receiver

platform at the lower front of the servo tray (use #64 rubber bands).

*Pushrod measurements include ball links from plastic end to plastic end.

Adjust the two aileron control rods to 158mm and attach the two balls on

the aileron servo wheel and to the two aileron bellcranks. Adjust the eleva-

tor control rod to 135mm and attach to the elevator servo arm and elevator

bellcrank.

Section 15: Main rotor blade installation

Each rotor blade has 3 holes drilled in the root. Use epoxy to glue the plastic root ends

to the exposed wood pre-cut by the factory (15.1). Use the countersunk screws (15.2) to

secure the root ends to the blades and let the glue dry. Use the 2 M4x30 blade bolts and

M4 locknuts to secure the blades to the blade grips on the main rotor head (15.3). Main

rotor blades should have their leading edge turning clockwise.

15.1

15.2 15.3

Trailing edge

Leading edge

Countersunk blade

root screws (4) M4x30 Socket head

cap screws (2)

M4 Locknut (2)

Blade

bolt

hole

Aileron

servo

Elevator

servo

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