GRAUPNER mx-20 Hott, Programming Manual

Page: 56 / 296

56 Winged models
Winged models
Convenient support is provided for up to four aileron
servos and four fl ap servos on normal models or, for
V tail and fl ying wing/delta models, up to two aileron/
elevator servos plus four fl ap servos.
The majority of motorized and glider models belong to
the tail unit type "normal" and are equipped with one
servo each for elevator, rudder and ailerons in addition
to a motor throttle or electronic speed controller (or for
brake fl aps in the case of a glider model). Beyond this,
tail unit type "8" permits the connection of two
elevator servos to receiver outputs 3 and 8.
If ailerons, and conditionally the fl aps, are each actuated
with two separate servos then settings can be made for
differentiated control of all aileron and fl ap pairs in the
"Wing mixers" menu, i.e. settings for downward ruder
throw independent of upward throw.
Finally, the position of fl aps can be controlled by a
control out of group CTRL 6 … 10. Alternatively, there
is a phase-dependent trim function available for fl aps,
ailerons and elevators in the
"Phase trim" menu.
The "V tail unit" is to be selected from the "Model
type" menu if the model has a V tail unit instead of
a normal tail unit. This V tail unit selection provides
coupled elevator and ruder control functions for both
tail fl aps – each controlled by a separate servo – which
handles both elevator and ruder functionality.
For delta and fl ying wing aircraft models, aileron and
elevator functionality is affected by way of a common
rudder fl ap on the trailing edge of each side (right and
left) of the wing. The program contains appropriate mixer
functions for both servos.
Up to 7 fl ight phases can be programmed into each of
the 24 model memory locations.
Except for C1 trim, digital trim will be stored on a
fl ight-phase basis. C1 trim permits easy location of a
carburetor idle setting.
Two timers are always available for fl ight operation. The
transmitter operating time expired since the last battery
charge is also displayed.
All transmitter controls (CTRL) and switches (SW) can
be assigned in the
"Control adjust" menu to inputs 5
… 12 with almost no restrictions.
The "Dual Rate" and "Exponential" functions for ailerons,
rudder and elevators are separately programmable and
each are convertible between the two variations on a
specifi c fl ight-phase basis.
In addition to 8 freely allocatable linear mixers, 4
curve mixers ("
Free mixers " menu) and 4 dual mixers
(" Dual mixer " menu), there are also fl ight-phase
dependent 6-point curves for control channel 1 (throttle/
brake), see "
Channel 1 curve " menu).
Depending on the number of wing servos, fi xed-
defi nition mix and coupling functions can be selected
from a list in the "
Wing mixers " menu.
Multi-fl ap menu: control of fl aps as ailerons, the •
infl uence aileron trim on fl aps controlled as ailerons,
fl ap differentiation, fl ap function throw magnitude for
all aileron and fl ap pairs, ailerons controlled as fl aps,
elevator mixer

fl aps
Brake settings: butterfl y, differential reduction, •
elevator curves
aileron
•

rudder mixer
fl aps •

elevator mixer
E
le
va
to
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Fla
p
Flap
Ele
vato
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F
la
p
Aile
ron
A
ile
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Flap
Aileron Rudder
E
le
v
a
to
r
A
ile
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n
left
right
E
le
v
a
to
r Flap
F
la
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E
le
v a tor
A
ile
ro
n
Ru
dde
r
A
ile
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Flap
Airbrake Flap
Airbrake Elevator
Airbrake-Function 1
left
right
Rudder/Elevator
V-Tail
AI
FL
FL
AI
Brake FL, FL2
Brake Elevator
Brake AI, AI2
AI
FL
FL2
AI
FL
FL2
AI2
F
L

AI
F
L

A
I
EL

FL
RU

AI
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
AI
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
FL
AI2
A
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
F
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A
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
FL