GRAUPNER mc-18

Code 41 Code 42 Code 49
Aileron Rudder Aileron Flap Flap Aileron
Mixer Aileron Rudder Mixer Aileron Flap (for model type 7) Mixer Flap Aileron
40
A
I
L
E
R
U
D
D
+
3
3
%
Using code 41 the rudder can be affected, by an
adjustable amount, by the ailerons (particularly in
conjunction with aileron differential) to counteract the
negative yawing moment to achieve smooth circling
flight. The rudder remains fully controllable by the
rudder stick. The mixer can be switched on and off by
an external switch allocated via code 23. For speed
flight (code 52) the mixer is, in principle, automatically
turned off.
After calling code 41, the mix quota can be adjusted
using the INC and DEC keys (in 1% steps) and the
6 or 8 key (in 10% steps), and set to 0 by pressing
the CLEAR key, with direction of the mix being
changed by pressing the TURN key.
A
I
L
E
F
L
A
P
+
5
5
%
An adjustable amount of aileron control can be mixed
into the flap channel, via code 42, so the flaps will be
deflected in the manner of the ailerons on operation
of the ailerons, though normally with lesser deflection.
The advantage of this arrangement is increased rate
of roll and reduced drag at the same rate of roll, as a
result of the reduced aileron deflection required and a
more uniform lift distribution along the span of the
wing. The mixer can be switched on and off by an
external switch set with code 23.
After calling code 42, the mix quota can be adjusted
using the INC and DEC keys (in 1% steps) and the
6 or 8 key (in 10% steps), and set to 0 by pressing
the CLEAR key, with direction of the mix being
changed by pressing the TURN key.
The trim mixer can be switched on and off by
pressing the 5 key.
F
L
A
P
A
I
L
E
o
f
s
-
7
3
+
s
+
4
5
%
An adjustable amount of flap control can be mixed
into the aileron channel, via code 49, so the ailerons
will be deflected in the manner of the flaps on
operation of the flaps, though normally with reduced
deflection. The advantage of this arrangement is
reduced drag and a more uniform lift distribution
along the span of the wing.
After calling code 49, the offset adjustments may be
performed first, that is the mixer has to been informed
which position to the operating element for the flaps
(normally a slider-type potentiometer in channel 6) will
occupy in normal flight (with the flaps in the neutral
position). To this end the operating element is set
accordingly and then the STORE key is pressed.
The offset from the neutral position is shown on the
lower line of the display).
The mix quota can be adjusted using the INC and
DEC keys (in 1% steps) and the 6 or 8 key (in
10% steps), and set to 0 by pressing the CLEAR
key, with direction of the mix being changed by
pressing the TURN key.
Code 49 permits adjusting unequal mix quota and
directions. In the course of programming the
operating element for the flaps has to be set to the
end required to be adjusted.