aero-naut Joker RC Instrucciones de construcción - Página 6
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Installing the receiving system in the fuselage
The plate for the rudder and elevator servos should
be glued in the fuselage towards the rear of the
wing saddle area.
Ensure that it is positioned low enough to provide
clearance between the servos and the underside of
the wing, but high enough to prevent the servos
fouling the bottom of the fuselage.
Fix the servos to the servo plate using the retaining
screws supplied with the servos.
Connect the pre-formed end of the steel pushrods
to the servo output levers. Minor adjustments to
pushrod length can be carried out at the rudder and
elevator by screwing the clevises in or out on the
threaded couplers.
When you are satisfied, fix the ends of the snake outers to the underside of the plywood wing
retainer plate with epoxy.
Installing the electric motor
If you wish to fly the model as an electric glider, the
next step is to install the motor.
First the fuselage nose has to be sawn off at a
point 32 millimetres aft of the point of the fuselage.
Please work slowly and cautiously here; better to
check the position of the saw too many times than
too few.
Now screw the motor to the motor bulkhead, and
push the whole assembly into the fuselage nose
from the inside. Align the bulkhead with the cut
face of the fuselage. Note that the motor shaft must
be inclined slightly down (about 2° downthrust),
and slightly to the right (about 1° right sidethrust,
as seen from the tail). Tack the bulkhead in place
with a little thin cyano, then apply plenty of epoxy to
the joint from the front.
Allow the glue to set hard, then fit the spinner back-
plate on the motor shaft. You may need to sand
back the front face of the fuselage slightly until it
matches the diameter of the backplate accurately,
and lines up neatly with it. Once again, please work
slowly and remove material in small increments -
your reward will be a perfect result.
Now connect the motor to the speed controller,
taking care to maintain correct polarity. It is best to
check the direction of motor rotation before you
install the motor permanently. A small block of
wood with a central hole can be pushed onto the
shaft to help you see its direction of rotation. Don't
use the propeller for this - injury hazard!
Install the folding propeller, hub and spinner as
described in the instructions supplied with them.
Fix the speed controller to the fuselage side using
a little hot-melt adhesive. It is also a good idea to
secure the wires between the speed controller and
the motor to avoid any chance of them fouling the
rotating parts of the motor.
Joker building instructions
Joker
6