GRAUPNER mx-24s, Programming Manual

Page: 184 / 216

184
Eight-fl ap wing
In its standard form the
mx
-24s fi xed-wing program
provides a convenient method of controlling a maxi-
mum of six servos for the aileron / fl ap function.
If the wings are fi tted with eight control surfaces, you
can set up a dual mixer and up to four free mixers in
order to control two more servos operating the super-
imposed inboard ailerons and fl aps.
In this section we consider a glider without separate
(conventional) airbrakes in the wings.
The servos should be connected to a suitable recei-
ver in the following sequence:
Control surface Receiver output
Ailerons 2 + 5
Flaps 1 (outboard) 6 + 7
Flaps 2 (centre) 9 + 10
Flaps 3 (inboard) 11 + 12
Elevator 3
Rudder 4
To control all the wing fl aps you will need the two
sticks plus only one of the two INC / DEC buttons
CONTROL 5 or 6 or alternatively a maximum of two
two-position switches (SW).
To set up a control system for all the servos, fi rst
switch to the menu ...
Programming examples: Fixed-wing model
»Model type« (page 70)
SEL
Offset +100%
2 AIL 4 FL
M O D E L T Y P E
Tail type
Aileron/camber flaps
Brake
Input 1
Normal
Motor on C1 None
… and select “2 AIL 4 FL” In the “Ailerons / fl aps” line.
Now switch to the menu ...
»Dual mixers« (page 144)
12 0%
Diff.
SEL SEL
11
? ? ? ? 0%
SEL
? ? ? ? 0%
D U A L M I X E R
Mixer
Mixer
Mixer 1
2
3
… and set up one of the mixers – in our example mi-
xer 1 – to “
11 ” and “ 12 ”.
This dual mixer combines servos 11 and 12 to act
as ailerons (11 and 12 moving in opposite direc-
tions when a “
12 ” control signal is present) and as
fl aps (11 and 12 moving in the same direction when a
“
11 ” control signal is present). However, since the
ailerons are controlled by one of the two sticks, and at
present this is affecting neither of the control channels
11 and 12, you must set up a free mixer in order to
create this link. This is accomplished in the menu …
»Free mixers« (page 135)
Tr =>
- - - -
?? ?? - - - -
?? ?? - - - -
SEL SEL
AI 12
?? ??
SEL
LinearMIX
type
1
LinearMIX
LinearMIX
LinearMIX 2
3
4
from to Adjust
… where you program an unused linear mixer, for ex-
ample LinearMIX 1, with “Tr” and “AIL
12”.
On the second screen page you can enter a mixer va-
lue to suit the model:
+ 2 0 % + 2 0 % 0 %
m
OU
T
P
U
T
- +
10
0
STO ASY SYM CLR
Tr AI 12
O f f s e t
Linear MIX 1
Mix input
This mixer now transfers the aileron function to the
two inboard fl ap servos 11 + 12 with the help of the
dual mixer which we set up earlier.
We now need to set up the fl ap servos 6 + 7 (FLAP)
and 9 + 10 (FL2) to act as ailerons: select the menu …
»Wing mixers« (page 110)
… and move to the “ Multi-fl ap menu ” within it:
AI +100%
Ail–tr
Diff. 0%
FL.pos 0%
FL 0% +100%+100%
El–>Fl 0% 0% 0% 0%
AILE
SEL SEL SEL
+100%
FLAP FL2
0% +100%+100%
0% 0%
+75% +50%
0% 0%
0% 0%
+50% +75%
In the “ QR ” line enter suitable values for the aile-
ron control of the two pairs of wing fl aps, and do the
same in the “Ail-tr” line to ensure that aileron trim is
also transferred.
At this stage it is advisable to check the settings you
have programmed thus far by calling up the »
Servo
display « menu:
• When you give an aileron command, servos 6 + 7,
9 + 10 and 11 + 12 should move in parallel with
servos 2 + 5; the aileron trim lever should also af-
fect all these servos.
10 2 5 9 7 6
3
4
PPM24 or APCM24
11 12