Erwin XL
slope
building Instruction
August 2018
www.pcm.at
8
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.
