STEP 5 Flybar Control Arm Assembly
From parts bag 1: Using an available
M3x12 Button Head Screw, insert ap-
proximately half the length of the screw to
form threads into the smaller, tapered
ends of the control arms and the control
arm stand-offs. Assemble Pushrod A
(47mm center to center) and press one ball
link end onto each double studded steel
ball, making sure that pressure is applied
from the side of the ball link with the
Century name. All ball links are designed
to be installed in one direction only. While
holding one flybar control arm, start
threading the double studded steel ball.
When it becomes difficult to turn with
fingers, start the control arm stand-off and
use as a driver until tight. Complete the
second flybar control arm.
Slide and center the Flybar through the seesaw arm assembly. Carefully look at Flybar Control Arm and notice
that when installed correctly, the securing set screw is on top.
Insert one 4x6x0.5 washer against each
bearing
then the flybar control arm. Insert one M3x12 Button Head Socket Screw into each Flybar
Control Arm, securing the assembly together. Loosely tighten the M4x5 Set Screws into the round alumi-
num inserts. Using a ruler, check the distance between the end of the flybar and the control arm and
adjust until the lengths are the same. Slide the Flybar Weight (
Tip
: the flat end of the weight touches the
paddle) and thread on the Flybar Paddle until all the threads are covered onto the flybar and align the
paddles parallel. Again using the ruler, rotate one paddle or the other to get equal distances, remember
leading edge of the paddles turn clockwise. Remove one set screw at a time, apply threadlock (
Tip 1
) and
tighten in place. Using two M3x3 Set Screws secure the weights using threadlock.
STEP 6 Flybar & Flybar Paddle Assembly
Flybar Control Arm x 2
Double Studded Steel Ball x 2
Control Arm Stand-off x 2
[HI3176B] - 30
[HI3176C] - 50
Double
Studded Steel
Ball x 2
Control Arm
Stand-off x 2
Flybar Control
Arm x 2
Repeat 2
Times.
Pushrod (A x 2)
25mm Rod
See page 30 for
full size drawing.
Ball Link
[HI3145]
Set Screw
M4x5
Align each paddle 'A' to be parallel with the flybar
control arms 'B'. This is made very simple with
the optional pitch and paddle gauge CN2026
For balancing of
rotor head see Final
Adjustments
A
A
B
A=B=A
M3x12
Button Head
Screw x 2
Flybar Paddles & Weights
[HI6179] - 20g (Gray)
Leading Edge
Flybar [HW3173] - 30
& [HW3173A] - 50
* packed with tailboom
M4x6x0.5
Washer x 2
M4x5 Set
Screw x 2
37
M4x30CS
Machine
Screws x 2
M4 Locknuts x 2
When attaching the main blades, the direction of
rotation is clockwise, when looking on top of the
helicopter.
Bolt the blades together and support by the ends of the
bolt off a flat surface. If one blade tips to one side add
small pieces of tracking tape until both blades hang an
equal distance from the table (Distance A = B). Attach
the Main Blades to the helicopter using two 4x30mm
Socket Head Cap Screws and M4 Locknuts.
Gyro
Having completed all the assembly for the helicopter, all that remains
is mounting the radio receiver, receiver battery and the gyro.
Radio Components & Balancing
Balance is the most important part in maintaining a
safe and reliable helicopter. First check the blades for
balance, this can be done on a balancer but can be
done directly on the helicopter by tipping the helicop-
ter on its side at the edge of a table and attaching the
blades. Temporarily remove the bolt to secure the
autorotation bearing so the head spins free ( remember
to replace this bolt!! ). If one blade stops at the same
spot add some tape to the lighter blade to balance the
rotorhead. The same procedure can be used to balance
the flybar without the main blades attached.
Balancing the Rotor Head
Receiver, Battery Pack
Using the foam rubber, wrap the battery pack, receiver and gyro controller separately, allowing wires to be
collected and tied together. Using two elastics looped through the front of the top servo tray, secure the compo-
nents to the two hooks on the lower servo tray. ** The actual arranged components will be different than the
picture illustrates.
Optional Equipment
PG2000 II Piezo Gyro
#CN2018
Mount the gyro on the radio tray, some rearrangement from the picture is required to
mount everything. If using the PG2000 II, the gyro can be mounted between the collective
& throttle servos and the right servo frame side. It is extremely important that the gyro is attached using only
the supplied two sided tape onto a clean flat surface. Keep all wires and components away from the gyro
housing. Do not use straps or elastics to secure the gyro.
Install the gyro using double sided foam tape ( supplied with gyro ) put a full strip along the bottom of
the gyro unit and press onto the surface. For a good bond make sure both surfaces are clean and dry.
Distance A
Distance B
Flat Table Surface
Balancing the Rotor Blades
