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Idiomas disponibles
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Carefully open the throttle until the blades are spinning, and
check the blade tracking from the side.
If the blades revolve at different heights when the rotor is at
hover speed, you need either to increase the pitch angle of
the lower blade B, or reduce the pitch angle of the higher
blade A.
This is done by disconnecting the pushrod between the
mixer lever and the blade holder, disconnecting Y-07 and
rotating it by 1 - 2 turns in the appropriate direction.
General information on programming the radio control
system
The settings stated in the following section refer to the FX 18
radio control system and the recommended components
(see accessory sheet).
If your model helicopter is to operate efficiently the basic
mechanical adjustments must be correct.
For safety reasons remove the main and tail rotor blades
before making adjustments to the speed controller and
throttle programming.
Before you continue with programming the system the follo-
wing requirements must be fulfilled:
Adjust the speed controller as described in the operating
instructions.
- Caution: activate the soft-start facility of your speed
controller, as this prevents the main rotor blades folding
together.
The first step is to set the hover point.
Your aim should be to set up the helicopter so that it hovers
when the collective pitch stick is at centre, with a blade pitch
angle of +3° - +4°.
Set up the mixer swashplate travel in % terms so that the
collective pitch range is from 0° to + 8°.
If you are using a 6-channel receiver it is possible to set a
fixed value for throttle in the throttle / collective pitch curve.
Assembly instructions
Crown III
If you are using a receiver with 7 or more channels the speed
controller can be assigned to a separate slider channel.
Tail rotor compensation (REVO)
Tail rotor compensation only needs to be set up if you are
using a gyro which requires this.
The aim is to eliminate any tendency for the helicopter to
yaw (swing to either side) when the model climbs or des-
cends. This unwanted rotation is caused by variations in the
torque generated by the rotor blades.
The basic requirement:
The model must first be trimmed neutrally for the hover, i.e.
when hovering the model should have no tendency to yaw.
Standard REVO value: 25%.
With the model at a steady hover, increase collective pitch
briskly.
If the model yaws in the opposite direction to the direction of
main rotor rotation, the value for tail rotor compensation
(REVO) must be increased.
If the model yaws in the same direction as the direction of
main rotor rotation, the value for tail rotor compensation
(REVO) must be reduced.
Important
After flying the model helicopter for the first time please take
the trouble to check that all screwed joints are still tight; this
applies in particular to the power train components and the
rotor system. All the following areas of the helicopter should
be re-greased or oiled at intervals of two or three hours:
Main rotor shaft where the collective pitch compensator sli-
des.
Tail rotor shaft in the area of the tail rotor slider,
6
And one final tip
On no account attempt to fly your new helicopter without
enlisting the help of a good, experienced helicopter pilot.
Many apparently difficult problems sort themselves out vir-
tually by themselves if you can fall back on the experience of
a competent helicopter pilot.
robbe Modellsport GmbH & Co. KG
We reserve the right to alter technical specifications
Order No.
S 2610
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