Futaba 9VAP - Manual (Page 29)

Mixing ON/OFF Switch Selection
Programmable Mixing can be designated as "always
ON" or switched ON and OFF in flight by any
four different switches.
1) Move the cursor to the "sw" position with the
or cursor key.
2) Press the appropriate program key (
through ) for the switch selection de-
•Trim ON/OFF selection is only relevant if the
Master is a primary control stick (AIL, ELEV,
RUD, AND THR).
Setting Method
1) Move the cursor to the "trm" position with
the or cursor key.
2) Select the "Trim ON" or "Trim OFF" mode
with the or program key.
sired.
Switch assignments are designated by numbers as
shown below:
1.
2.
3.
4.
5.
Always ON
PROG. MIX Switch
RUD. D/R/CH9 Switch
3-- 8 MIX Switch
ELEV. D/R Switch
Trim ON/OFF Setting
• In the "Trim ON" mode, trim lever inputs on
the Master channel will be "carried over" to
the Slave channel, causing a corresponding
change in the Slave channel neutral position
when the mixing is ON. In the "Trim OFF"
mode, trim changes to the Master channel af-
fect the master channel only, regardless of the
mixing ON/OFF switch position.
OffsetfRate and Direction Change Point)Setting
• Normally, the neutral (center) position of the
Master channel control stick will be the point
at which the Slave channel servo rate and direc-
tion change occurs. This control stick position
can be changed (Offset) if desired.
1) Move the cursor to the "ofs" position with
the or cursor key.
2) Move the Master channel control stick to the
desired position at which you wish rate and
direction change of the Slave channel servo to
occur. (Mixing amount = 0 Point)
3) Press the key. The Master channel stick
position is memorized and will be displayed as
a percentage in the "ofs" position of the
screen. "+" indicates a stick position to the
R/U side of neutral. "-" indicates a position
to the L/D side of neutral. "0%" indicates
that the direction will change at the normal
control stick neutral position.
EXAMPLES OF PROGRAMABLE MIXING
Programmable Mixing combinations are extremely versatile and can be as complex as desired,
limited only by the modeler's needs and imagination. A few/examples of how mixing func-
tions can be used are shown below:
• Eliminating Unwanted Control Interactions
Adverse control interactions (caused by trim,
model inaccuracies, etc.) can be compensated for
automatically, with the use of the Programmable
Mixing function.
As an example, let's presume that when top rud-
der is applied during "knife-edge" flight, an un-
wanted movement toward the top of the aircraft
occurs. We can use a Programable Mixing circuit
to automatically apply a small amount of DOWN
Elevator control with the application of top
(Right or Left!) Rudder.
Setting Method
1) Select the PROGRAMABLE MIX screen and
press the SET key to display the CHANNEL
SETTING screen.
2) Select RUD as the Master "mas" channel on
MX1 circuit using the + or - program
key.
3) Move the cursor to the "slv" position and
select ELV as the Slave channel. RUD -> ELV
will appear on the right side of the screen.
4) Return to the PROGRAMABLE MIX screen
by pressing the key.
5) Move the cursor to the "inn" position and
press the key.
6) Move the cursor to the R/U and L/D posi-
tions. The direction of Elevator movement is
set with the and
program keys, and
the rate (amount) of movement set with
and program
keys. Set the rate and direc-
tion to give a small amount of DOWN Eleva-
tor with the application of either direction of
Rudder.
7) Move the cursor to the "sw" position and
select the desired Mixing ON/OFF Switch
option.