GRAUPNER mx-20 Hott, Programming Manual

Page: 152 / 296

152 Detail program description - Control adjust
Model type: "2AIL"
If you have entered "2AIL" for the "Aile/fl aps" line on the
"
Model type " menu (page 82), then the "Wing mixers
menu" on your transmitter will match the following
screen image:
Aile.diff.
Brake settings
0%
AI 0%
WING MIXERS
EL AI 0% 0%
–––
––– RU
Nor mal
From the fi rst line on this display screen, you can switch
to the sub-menu by briefl y tapping the center
SET key
on the right touch pad …
Brake settings
Note:
The "Brake settings" menu is switched "off" if you
entered "Motor on C1 forward / back" on the "
Model
type " menu (see page 82), and entered "Yes" for the
currently active fl ight phase in the "Motor" column of the
"
Phase settings " menu (see page 128). Switch the fl ight
phase if required:
Elevat cur ve
BRAKE SETTINGS
AILE
Crow
D.red 0%
0% 0% 0%
0% 0%
WK WK2
Nor mal
Depending on the model type selected, you will now
have appropriate confi guration options available in
the lines "
Crow " and " D (ifferential) red (uction)" for the
" AILE " column. You should utilize these options by …
… moving the transmitter control for "Brake" •
(see description for " Model type " menu on page
82 – typically the C1 joystick – to its braking end-point.
Then switch to the "Crow" line, briefl y tap the center
SET key on the right touch pad and use the arrow
keys on the left or right touch pad to set a value that
moves the aileron upwards as far as possible to
brake the model, or – if you are using airbrakes as
the main braking system – the aileron should be set
to elevate only minimally to provide an extra braking
effect.
Note:
To reliably prevent the servos mechanically striking
their end-stops – which draws a heavy current – you
can set an appropriate limit value in the "– lim +"
column of the "
Servo adjustments " menu (page 90).
… then, fi nally, moving to the "D. red" line and setting •
a % value that is greater than or equal to the "Aile.
diff." value that you set (or have yet to set) on the
display page "before" this one.
In this way, you can suppress the aileron differential
when braking, thus ensuring that you can count on
suffi cient aileron response despite your ailerons
being defl ected upwards.
From the lowest line, "Elevat. curve", you can switch to
setting the "Elevat. curve" mixer by briefl y tapping the
center
SET key on the right touch pad:
Input
Output
Point
?
–100%
0%
0%
Brake
nor mal
Ele
Cur ve off
Nor mal
If required, i. e. if you have the feeling that you will need
to set pitch trim compensation when the airbrakes are
extended, you can program an appropriate automatic
mixer affecting the elevator at this point.
For detailed instructions on setting a curve mixer, please
refer to menu option "
Channel 1 curve " (page 116
onwards).
Aileron differential
Aile.diff.
Brake settings
0%
AI 0%
WING MIXERS
EL AI 0% 0%
–––
––– RU
Nor mal
The adjustment range of ±100% makes it possible to
set the correct direction of differential, regardless of the
direction of rotation of the aileron servos. While "0%"
corresponds to a normal linkage, i. e. no differential on
the transmitter, "-100%" or "+100%" represents the
"split" function.
For aerobatic fl ying, low absolute values are required to
ensure the model rotates exactly along its longitudinal
axis when an aileron command is given. Values near
to the center (-50% or +50%) are typical for facilitating
turns in thermals. The split setting (-100%, +100%) is