121
Programming examples – Fixed-wing models
“power” – whether the power is from an electric mo-
tor or an internal combustion engine – you will pro-
bably encounter few problems in this matter, becau-
se you have already defi ned the stick mode, and the
sticks are employed primarily to control the four basic
functions “power control (= throttle)”, “rudder”, “eleva-
tor” and “aileron”. Nevertheless, you still have to call
up the ...
»Model type« menu (page 52)
M O D E L T Y P E
M o t o r
T h r . m i n r e a r
T a i l t y p e
N o r m a l
A i l e r o n / c a m b e r f l a p s
1 A I L
B r a k e O f f s e t + 1 0 0 % E n t e r 1
S E L
t
… and defi ne your preferred throttle direction, i.e.
throttle minimum “forward” or “back”, because the de-
fault setting is “none” (i.e. no motor).
The difference between “none” and “throttle min. for-
ward / back” is the effect of the Ch1 trim. The trim is
effective over the full stick travel if “none” is entered,
but it only affects the idle range if you enter “throttle
min. forward / back”.
At the same time the “direction of effect” of the Ch1
stick is also changed accordingly, to avoid the neces-
sity of reversing the throttle servo if you switch from
“idle forward” to “idle back”, or vice versa. A safe-
ty feature connected with the idle setting is the on-
screen warning which appears when you switch the
transmitter on, if the throttle stick is too far in the di-
rection of full throttle; an audible alarm sounds at the
same time. This only appears if you have set “Throttle
min. forward / back”.
Apart from these basic considerations, you will cer-
tainly want to think carefully how best to control any
“auxiliary functions” included in your model.
In contrast, if your model is a glider or electric glider
the whole situation may be rather different. The imme-
diate question is: what is the best method of control-
ling the motor and braking system? Some solutions
have proved to be practical, and others less so.
For example, it is not a good idea to be forced to let
go of one of the primary sticks in order to extend the
airbrakes or deploy the crow braking system when
your glider is on the landing approach. It surely makes
more sense to set up switchable functions for the Ch1
stick (see programming example: page 129), or to as-
sign the braking system to the stick, and shift the mo-
tor control to a slider – or even a switch. With this type
of model the electric motor is often little more than a
“self-launching system”, and is used either to drag the
model into the sky at full power, or to pull it from one
area of lift to the next at, say, half-power, and for such
models a three-position motor switch is usually qui-
te adequate. If the switch is positioned where you can
easily reach it, then you can switch the motor on and
off without having to let go of the sticks – even on the
landing approach.
Incidentally, similar thinking can be applied to fl ap
control systems, regardless of whether they are “just”
the ailerons, or full-span (combination) control sur-
faces which are raised and lowered in parallel.
To control the fl aps all
you need is an external
switch with a long togg-
le (Order No.
4160
), or
the differential switch, Or-
der No.
4160.22
, and the
ideal location for it is on
the outside edge of the
transmitter on the same
side as the throttle / brake stick. You can then reach
the switch at any time without having to let go of the
sticks.
In contrast, the motor can
be controlled very effec-
tively by means of a two-
position or three-positi-
on switch (Order No.
4143
or
4113
respectively)
mounted in the stick it-
self. These switches have
to be installed by your lo-
cal
GRAUPNER
Service
Centre.
If you don’t wish to use a stick switch, the motor
should be controlled by a switch installed on the side
of the transmitter opposite to the hand which holds
the model for launching. In other words: if you launch
the model with your right hand, then the motor switch
should be in the “outside left” position, and vice versa.
Once you are satisfi ed that all these preparations
have been completed successfully, you can make a
start on programming.
Thr
too
high!!
Summary of Contents for MC-22S
Page 1: ...1 mc 22s GB mc 22s 3D Rotary Programming System Programming manual ...
Page 33: ...33 Digital trims ...
Page 55: ...55 Program description Base setup model ...
Page 77: ...77 Program description Flight phases ...
Page 89: ...89 Program description Mixers ...
Page 174: ...174 ...
Page 175: ...175 ...
Page 176: ...176 ...
Page 177: ...177 ...
Page 178: ...178 ...