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An aluminium bar (12 x 3 mm cross-section) is used to adjust the tilt angle of the
retractable motor; screw this bar to the mechanism as shown.
Fix the front support to the retractable undercarriage former (or a separate former),
using an M3 socket-head cap screw, as shown in the photo.
Gegenlager
The cross-hole, i.e. the front fixing point, can now be marked on the aluminium bar:
move the mechanism to the fully extended position using the radio control system,
and adjust the angle of the motor pylon so that the airflow from the propeller is
directed straight at the tailplane when the motor is running. This setting is important,
as you need to be able to push the tailplane (and with it the fuselage) down onto the
ground during the take-off run.
For reliable operation of the retractable motor system it is important to wire an ON /
OFF switch in the circuit between the motor unit and the extend battery, otherwise
the battery will be flattened by the small current which flows when the system is at
idle.
GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
Änderungen vorbehalten! Keine Haftung für Druckfehler
12/2009
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