Operation Manual

8.6.2. Preparations

a.) Preparing the transmitter:

Select model type HELI (H):

The special settings for helicopters appear in the MIX menu only if in the SETUP

menu the model type HELI (H) is selected (see 8.2.1.). In the model type HELI the

throttle servo is automatically controlled by the collective pitch stick (collective

pitch → throttle mixing)

Installation of the required switches and controls:

Under 4.1.6. we mentioned already the necessity of additional control elements for

helicopters.

• slider (# 7 5720) for idle-up as control E

• 2-pos. switch (# 7 5742) for auto-rotation select

• 3-pos. switch (# 7 5740 or # 7 5707 E/A/T) for the timer and MOTOR OFF

• optional rotary adjustor (# 7 5719) for setting gyro gain (sensitivity)

More on the installation: see 4.1.6.

Select the stick position for collective pitch minimum (idle trim):

Select „IT_“ („LT_“) in the menu item IDLE (LEERL), if the stick position for collec-

tive pitch minimum shall be back. For forward position select „IT`“ („LT`“). See

also 8.2.3.

b.) Preparing the model:

Before you start making adjustments at the transmitter it is very important that you

set up and adjust the model carefully, so that the mechanical settings are as nearly

perfect as possible. The more accurately you carry out the mechanical adjustments,

the more precisely will the helicopter respond to your commands.

Important:

Before you start making adjustments, be sure to erase the selected model memory

(see 8.2.1).

The sticks and trims must be set to centre.

The servo centres must be set to 0% (see 8.3.2), and the servo format must be cor-

rect for your servos (see 8.3.1).

• The output arms on the primary servos (roll-axis, pitch-axis, yaw-axis) must be

adjusted so that the output arms are at right-angles to the pushrods attached

to them when the servos are at neutral.

• Set the pushrod lengths as described in the instructions supplied with the

helicopter

• When the transmitter sticks are at neutral, the swashplate should be exactly

horizontal.

• The main rotor blades and the tail rotor blades must be set at the pitch angles

stated in the helicopter instructions, i.e. corresponding to the hover setting

when the collective pitch stick is at centre.