32
2. Intended Use
This product is an electrically driven model helicopter which is radio controlled via the remote control unit included in
the delivery. The model is designed for indoor operation and may be used outdoor only where there is no wind. The
model helicopter is pre-assembled and ready to fly and is delivered with built-in remote control and drive components.
The product must not become damp or wet.
The product is not suitable for children under 14 years of age.
Observe all safety notes in these operating instructions. They contain important information regarding the
handling of the product.
3. Product Description
The double rotor RC electric helicopter is equipped with two counter-rotating main rotors and is ready to fly. Thus,
there is no torque around the yaw axis and the model does not need a functional tail rotor. Steering around the yaw
axis is effected by means of different revolutions of the two main rotors.
The upper main rotor is a bearing rotor and has a fixed attack angle, which is set automatically via the rotating
centrifugal weights. The lower rotor is a control rotor and allows flying in all directions.
Lifting and lowering the model is effected via a common modification of the number of revolutions of both main rotor
blades. Due to the big distance between bearing rotor and model centre of gravity, this model flies very stable in spite
of its very small dimensions and is thus suitable as training model to learn flying with remote controlled model helicopters.
The radio remote control installation included in the delivery allows a sensitive steering of the model. 8 Mignon batteries
(e.g. Conrad Item-No. 652507) or rechargeable Mignon batteries are required to operate the transmitter.