GRAUPNER MC-32 Manual page 117

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Pitch/thr
Thr trim
4
Roll
global
4
Pitch ax
global
4
Tail rot.
Phase
4
Trim
Tr. step
"Global"
The position of the respective trim function
is effective "globally" for all flight-phases
programmed for the given model, page 152.
"Phase"
The position of the respective trim function is
effective on a phase-specific basis and will be
auto matically stored upon change of flight phase
so that the setting is again available following a
return to this flight phase.
A simultaneous tap on the  or  keys of the
right touch pad (CLEAR) will reset the option back to
"Global".
Trim steps
The four digital trim wheels shift the neutral point of
the respective stick in the given direction by one ad-
justable increment, as set here, for each "click". This
is where the increment size (step) can be adjusted
for a given direction, whereby maximum trim travel,
independent of the selected number of trim steps, is
always about ±30 % of control travel.
After selecting the "Tr. step" column and the desired
trim control with the  selection keys of the left or
right touch pad, the corresponding entry field will be
framed.
0.0s
0.0s
Pitch/thr
Thr trim
0.0s
0.0s
Roll
0.0s
0.0s
Pitch ax
0.0s
0.0s
Tail rot.
– time +
Briefly tap the centre
The current setting will be displayed in inverse video.
Now select the desired value, between 0 and 10, with
the selection keys of the right touch pad. For example:
Pitch/thr
Thr trim
Roll
Pitch ax
Tail rot.
A simultaneous tap on the  or  keys of the
right touch pad (CLEAR) will reset any change made
to the active field back to "4".
Use safety reasons by no means the
"Auto trim" from the menu "Basic
adjustment model" (page 103) at a
setting of "0" trim steps.
Time
The rate of control signal change with respect to the
speed of stick motion can be influenced by the entries
made in the "– time +" column. Each stick movement
direction, i. e. stick control channels 1 through 4, can
be set individually. This means that respective servos
will then follow rapid control position changes only
at an accordingly delayed rate. This time delay has a
direct effect on the control signal and therefore also
commensurately on any servos controlled by the ef-
fected controls.
4
0.0s
0.0s
global
4
0.0s
0.0s
global
4
0.0s
0.0s
Phase
4
0.0s
0.0s
Trim
Tr. step
– time +
SET
key of the right touch pad.
4
0.0s
0.0s
global
4
0.0s
0.0s
global
0
0.0s
0.0s
4
Phase
0.0s
0.0s
Trim
Tr. step
– time +
Program description - Stick mode | Helicopter models
The time can be programmed symmetrically for both
sides or separate for each control direction. This set-
ting has a programmable range of 0 s to 9.9 s. In this
latter case, the given stick control is to be moved to
the respective side so that the inverse video field will
switch between sides to the one for which the change
is to be made.
Example:
All three servos are to be actuated for
swashplate pitch control, e g. a "Pitch" control
movement for a "3Sv (2Roll)" swashplate.
However, travel for the middle servo is greater than
that of the other two servos on the shorter lever.
A rash "Pitch" control movement would not operate
the nick servo in the middle as quickly as it would
the two roll servos on the shorter lever. This would
cause a momentary control motion in the "nick"
direction. However, if response time for the "pitch"
control function were to be reduced by at least the
positioning time for the servo in the middle then all
three servos would reach their proper positions at
the same time. The necessary delay times typically
amount to only a few tenths of a second. For
example:
Pitch/thr
Thr trim
4
4
Roll
global
Pitch ax
global
0
Tail rot.
Phase
4
Trim
Tr. step
A simultaneous tap on the  or  keys of the
right touch pad (CLEAR) will reset any change made
to the active field back to "0.0 s".
0.2s
0.2s
0.0s
0.0s
0.0s
0.0s
0.0s
0.0s
– time +
117

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