Publicité
Already fitted:
Propeller, 45 x 25 cm
COMPACT 655 / 20 Volt
Introduction
Installing a retractable motor gives your model glider the ability to take off from the
ground if a suitable runway is available.
At the slope the system removes the fear of an out-landing when the lift fails.
A relatively small opening in the fuselage is sufficient for the retractable motor pylon.
The retractable motor locks at both end-points of its travel.
A worm gearbox guarantees reliable extension and retraction.
The system can be mounted on the wing joiner sleeve.
The angle of inclination (tilt) of the retractable motor is variable.
If a retractable wheel is installed, experience shows that the wheel axle should be
around 20 - 30 mm forward of the wing root leading edge when extended.
In most cases a simple three-position switch suffices to extend and control the drive
motor; the transmitter programming required varies according to your RC system.
In brief: 'switch back' equates to motor retracted, and - naturally - electric motor off.
'Switch centre' extends the motor; at the end-point the speed controller is armed.
'Switch forward' causes the motor to run.
Practice has shown that the 'zero to full-throttle' time should be programmed to about
five seconds. During the same period elevator trim compensation is activated by an
automatically triggered mixer; the amount of compensation varies according to the
specific model. When the motor is switched off, the elevator returns to the normal
neutral position.
Installing the "up and go II" retractable motor system
There are two methods of installing the retractable motor pylon: the first option is to
attach it to the glider's wing joiner sleeve, the second is to mount it on separate
formers which are bonded into the fuselage just aft of the wing joiner; in this case the
motor system can be screwed to the formers from the front. The first step is to place
the retractable motor unit on the fuselage in the retracted state, so that you can mark
the position of the doors which seal off the motor opening. Note the correct installed
height of the system at this point; you must ensure that the system does not foul the
doors when it is retracted. In this position mark the outline of the required opening: at
one end the edge should be around 20 mm longer than the propeller tips; at the other
about 10 mm longer than the end of the motor. To check the position of the front end
of the motor unit you should lay the retracted mechanism on the side of the fuselage;
you may then need to correct the marked outline slightly.
Naturally both ends of the opening must be marked exactly at right-angles to the
fuselage centreline. For Order No. 6097 the width of the opening in the fuselage
should be 55 mm, for Order No. 6098 the width is 65 mm.
GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
Änderungen vorbehalten! Keine Haftung für Druckfehler
Propeller, 36 x 20 cm
COMPACT 540 / 14.4 Volt
19
12/2009
Publicité
