104
Program description - Helicopter type
Pitch min
After selecting the »Pitch min.« (pitch minimum) line
with the selection keys of the left or right four-way
button, the entry field will be framed:
3Sv(2rol)
SEL
Linear. swashpl.
Swashplate
no
Rotor direct
right
Heli type
Pitch min. back
The “Pitch min.” line is used to adapt the actuation
direction of the throttle/pitch stick to personal control
preferences. All other helicopter program options which
involve throttle and pitch functions, e. g. throttle curve,
idle trimming, tail rotor mixer, etc., are dependent on
this setting.
Tap the centre SET key of the right four-way button.
The operating direction of the throttle/pitch stick will
be displayed in inverse video. Now choose the variant
needed with the selection keys of the right four-way
button.
These mean:
• “front”
minimum pitch setting when the pitch stick (C1) is
“forward”, i. e. away from thepilot.
• “back”
minimum pitch setting when the pitch stick (C1) is
“back”, i. e. toward the pilot.
A simultaneous tap on the or keys of the right
four-way button (CLEAR) will set this option to “back”.
Notes:
•
The C1 trim only affects the throttle servo
or the collective pitch servos, depending
on the settings in the “Tr” column of the
»Stick mode« menu, which is available as stand-
ard on the mc-20 HoTT transmitter only.
• Up to rmware version 1102 the so-called “throt-
tle limit” is set by default, see text beginning page
122, by way of input “Lim.” in the »Control ad-
just« menu with which the throttle servo can be
limited, independent of the pitch servo, in the full
throttle direction. From rmware version 1103 it
can be optionally set.
• Since a given user’s models will typically be oper-
ated with the same pitch-min direction, this spe-
cication can be conveniently preselected in the
“transmitter-specic” »Basic settings« menu,
page 269. This specication will then be adopted
automatically when a new model memory is creat-
ed in the »Helicopter type« menu but, if desired,
can be adapted on a model-specic basis as de-
scribed.
Expo throttle limit
After selecting the “Expo thro lim.” line with the
selection keys of the left or right four-way button, the
entry field will be framed:
Expo thro lim. 0%
SEL
Linear. swashpl.
no
Rotor direct
right
Heli type
Pitch min. back
The “Throttle limit” function described in the »Control
adjust« menu can be assigned an exponential charac-
teristic curve.
With the selection buttons, a value between ± 100% of
the rate of progression can be adjusted by pressing the
central SET key of the right four-way button.
For example, it is practical to have the throttle limit – by
default, the right-side proportional rotary slider – also
regulate the idle setting. Further details about the throt-
tle limit can be found in the text for the »Control ad-
just« menu beginning page 122,.
An example of two exponential
throttle limit curve characteristics
for 100 % servo travel.
continuous line:
negative exponential values;
dashed line:
positive exponential values
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