Safety - GRAUPNER Tangent Alpina 4001 PRO Notice De Montage

an aero-tow. In all cases always launch the model into wind with the wings level and adjust
the trims as necessary to achieve straight and level flight.
Check the centre of gravity once the model is flying at a safe height and comfortably above
the stall speed. Apply down elevator to place the model in a steep dive and then allow the
elevator to return
- If it recovers in a gentle upward arc, without any further control inputs and without
ballooning up above the horizontal, then the CoG can be considered to be about
right.
- If the model bounces quickly out of the dive and climbs strongly, the CoG is too
far forward. Readjust the battery position, or remove a little lead from the nose
and repeat the test.
- If however the model shows no tendency to recover, or indeed if it shows signs of
tucking under, the CoG is too far back. Readjust the battery position, or add a little
lead from the nose and repeat the test.

Safety.

Our hobby is very important to us and as such it is essential that we recognise the
responsibilities associated with the building and flying of model aircraft:
Carefully built models exhibit outstanding flying characteristics and the highest levels
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of reliability and safety.
Always carry out thorough pre-flight checks – observing structural integrity of the
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model as well as correct movement and sense of all the flying surfaces.
Always carry out a through range check on all new models or following any change of
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RC components.
Always check that your channel is free before switching on your transmitter.
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Adequate third-party insurance is essential. Check the local laws governing model
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flying in your region before flying your model.
Give due consideration to others when flying aerobatic manoeuvres and never fly low
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and/or fast over other people.
Always be aware of the vulnerability of each individual component of your RC system
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and maintain it responsibly.
Always give due consideration to other model flyers, provide ample air-space and
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observe the local system of channel allocation.
If in doubt – please ask. If you are unsure about any aspect of flying your model safely,
please seek the advice of an experienced aero-modeller or contact your dealer.
A final word
Get to know your ALPINA 4001 PRO. The models excellent performance and exceptional
flight envelope is renowned the world over. Enjoy one of the few sports in which the
combination of technology coupled with your own skill and the conditions that Mother
Nature provides are combined to provide the sheer enjoyment of flying. We at
GRAUPNER / TANGENT-Model sport, wish you much pleasure building and flying your
new model!
GRAUPNER / TANGENT Model Sport
Graupner GmbH & Co. KG * Henriettenstraße 94-96 * D - 73230 Kirchheim/Teck *
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to neutral and observe the flight
www.graupner.de
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