Finishing - GRAUPNER Alpina5001 PRO Mode D'emploi

at least one side of the cable harness should be permanently mounted as this reduces wear
and tear on the cables and is more convenient when rigging the model at the flying site.
Regardless of how exactly you choose to proceed, be sure to use good quality twisted servo
leads with a wire diameter of no less than 0.25 mm ² capable of delivering adequate current
for the multiple wing servos under load. Pay careful attention to the solder connections
ensuring good mechanical and electrical joint in each case. Be sure to insulate each joint
with heat-shrink for additional security. Some may wish to apply a bead of silicone compound
to the soldered ends to avoid stress points when handling the connectors.
Note: Quality cable sets, including connectors and separation filters are available via the
specialist model trade; choose high quality components for optimum reliability. In the case
where flying leads are used, take care always to handle the leads only by the connectors.
Don't pull on the leads!
The basic airframe is now complete.
ARF – customers should now proceed with the installation of the radio control system.
ARC – customers should no proceed with the finishing/covering of the airframe.

Finishing

Attention! Your new ALPINA 5001 is built using very sophisticated LTSCP (Load
Specific Covering Thickness Procedure) for superb flying characteristics, but this also
has the effect of considerably enhancing the thermal conductivity and as such
particular care must be taken to avoid excessive heat when using heat-shrink covering
films on the wings and tail-plane. Use low temperature heat-shrink covering films and
make every effort to avoid prolonged exposure to heat as the Polystyrene cores can
be destroyed if exposed to excessive heat. Polystyrene starts to melt at 70° C!
Film covering – all the wooden surfaces are supplied pre-sanded, but will benefit from
further fine finishing prior to covering. Follow the instructions provided with the covering
materials, always taking care to make all joins in the direction of the air-flow.
As an alternative to our own high stable decorative vinyl based covering material, we can
also recommend Oracover (Profilm) covering materials. When covering the control surfaces
with integrated Elastik Flaps (elastic hinges), take care to apply the film with the moving
surfaces fully deflected so as not to restrict the movement
Fibre-glass finish – for the ultimate finish to your VORTEX, cover the wings and tail-plane
with a lightweight glass-fibre cloth and treat with a suitable finishing resin. This involves a
specialist process which is well documented in the popular model trade. Choose good quality
materials and follow the manufacturer's instructions. Take care not to add excessive weight!
DESIGN Models.
Our DESIGN range of models are supplied with pre-printed graphics which are both
lightweight and durable. Please observe the following simple steps to maintain the
appearance:
TA-Film is stable up to a nominal temperature of 70
•
expose the surfaces to excess heat. The use of a normal hairdryer is all that is
required to soften the material should it eventually become necessary.
Graupner GmbH & Co. KG, Henriettenstraße 94-96, 73230 Kirchheim
36
www.graupner.de * www.tangent-modelltechnik.com
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C so care should be taken not to