55
The offset settings:
The offset point is the position of the master encoder from which the salve channel is added. If the value 0% is set, the
offset point is in the centre position of the master encoder. If the master encoder is then deflected from the centre to
the left and right, the slave servo will also deflect to the left and right if the defection values are set accordingly.
There also is the option of deflecting the offset point. This is recommended when the slave servo is to deflect in only
one direction and the master encoder is a „non-self-neutralising encoder“, such as a rotary encoder or the throttle/
pitch stick.
Practical example:
If a glider model has spoiler flaps in the wings, they are usu
-
ally controlled via the throttle stick (see schematic illustration in
sketch A and B).
With the stick in front (top figure, sketch A), the spoiler flaps
are retracted. If the control stick is pulled back to the body, the
spoiler flaps extend. In most models, an elevator deflection must
be mixed in for the model to fly on straight.
Without offset setting (sketch A), the elevator would be deflected
down and up according to the values set with the flaps retracted
and extended.
With half-extended spoiler flaps, the elevator is in the centre
position since the throttle stick is also in the centre position (see
middle drawing, sketch A).
Use the offset setting (sketch B) to move the throttle stick all the
way to the front and to change the offset value so that the eleva-
tor is in the centre position again (see top drawing in sketch B).
If the throttle stick is now moved back to the centre position, the
required elevator deflection is mixed in.
Since the max. elevator addition is already reached
at the centre position of the throttle stick, the elevator
deflection will no longer change if the throttle stick is
taken back farther.
For better illustration, the mixed-in elevator deflection
in the drawings in figure 47 was illustrated much larger
than it actually has to be.
Figure 47
Summary of Contents for HT-6
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