GRAUPNER mc-18, Programming Manual

Page: 25 / 56

Code 35 Code 59
Trim Reduction Trim Data Memory
Reducing Trim Range Storing Trim Data
25
T R I M N O R M . 1 4
T R I M R E D . 2 3
When using dual-ate and/or exponential, trim may in
some cases, not appear sensitive enough because of
the ratchet steps. Code 35 permits reducing the trim
action tom 50% independently for each control
function.
After calling code 35, the display will indicate the
control functions using normal trim in the upper line,
and reduced trim in the lower line. Using keys
1 … 4
permits switching the functions between the two
options.
1 = Throttle
2 = Ailerons
3 = Elevator
4 = Rudder
T R I M O F F S E T
S T O R E o r C L E A R
Code 59 is used for storing actual trim data. It can be
used in addition to display trim data stored in the
memory. After calling the display will show the
following message.
T R I M O F F S E T
S T O R E o r C L E A R
From here, branching occurs to the functions of “Trim
Storage” or “Display of Stored Trim Data”.
a) Trim Storage
To store actual trim data, press the STORE key. As
a result, the display will show
S E T T R I M & E N T E R
+ 1 6 - 0 7 + 0 9 - 1 3
Throttle Aileron Elevator Rudder
with the lower line indicating the positions of the trim
levers as a deviation from the neutral position. With
the aid of the display the trim levers are then shifted
to the neutral position, a step which does not change
the trim positions of the model. By pressing the
ENTER trim data storage process is terminated and
the previous in-flight established tri data now
corresponds to the mechanical neutral setting of the
trim levers.
Important:
In normal cases the trim lever for idle trim should not
be changed, as the indicated value does not
represent a value which has been established in
flight, but a random value for the idle trim position. If a
larger deviation from normal value has been stored
for function 1 (throttle), this will lead to malfunction of
the idle trim. When in doubt the stored trim data for
function 1 should be displayed and, if necessary,
deleted as described below.
b) Display of trim data memory
If the CLEAR key is pressed instead of the ENTER
key the stored trim data of each function can be
displayed now using keys
1 … 4 and if necessary
deleted (returned to 0) by pressing the CLEAR key.
The trim values are:
1 = Throttle
2 = Ailerons
3 = Elevator
4 = Rudder
The deletion of trim memories should preferably be
performed for all of the functions prior to entering the
data for a new model, so the same range will be
available for storing trim data in any direction when
test-flying that model.