User Manual

Erwin XL slope building Instruction August 2018
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7. Electronic components inside the fuselage
First of all, thread a steel wire of 1,5 mm into the outer
tubes of the push rods. By this, they get a lot stiffer and
you can thread them into the fuselage easily. Once the
tubes are inside the fuselage, you can bring them to the
right position from outside by using magnets.
(On photo white outer tubes were used.)
You can fix the tubes easiest by applying runny super
glue (with very thin viscosity) on both ends of the tubes
and letting it run along the tubes.
If you prefer to glue the tubes with 5 minute epoxy (mixed
with cotton flocks), you must apply the glue before you
thread the tubes into the fuselage. Put glue app. every
25cm.
In both cases, the ends should not be glued to keep
them still mobile. Therefore, place the final sticking point
about 10 to 12 cm from the ends of the tubes.
The servos for the elevator are mounted on the servo
board. The wholes are prepared for Graupner servos
C261.
Glue the servo board into the fuselage as shown on the
photo. Grind the gluing areas thoroughly and glue with
“UHU endfest 300” (epoxy 2 component glue) thickened
with cotton flocks.
Then, thread the thin pipes into the tubes, which act as
pushrods for controlling the elevator.
To stiffen the push rods, thread a 0,8mm steel wire
inside. We recommend this especially at the ends, where
the push rods are not led inside the outer tubes anymore.
Glue the threaded couplers to the ends of the pushrods.
These couplers are turned into the plastic part of the ball
connector.
Here you can adjust later the length of the pushrods.