AIRTRONICS SD-10G Operating Manual page 107

aero Flight Mode menu
The Rate percentage value is a ratio of Slave channel servo travel to Master channel servo travel. For example, if the Rate
percentage value is set to 10%, the Slave channel servo will travel 1/10th the amount that the Master channel servo travels.
As you change the Point and Rate percentage values, you can use the graph and I/O numbers to visualize the ratio
between control stick movement and servo travel throughout the entire deflection range.
Changing the Delay Percentage Value
Changing the Delay percentage value allows you to adjust the speed of Slave channel servo when moved in the direction of
the Master channel control stick when the Compensation Mixing function is Active. For example, if you program Compensation
Mixing to provide Elevator to Flaperon/Spoileron mixing, both of the ailerons will move up and down when the elevator moves up
and down. The ailerons can also be moved right and left to maintain roll control. Setting a Delay percentage value will cause both
aileron servos to slow down ONLY in the up and down directions when the elevator is moved up and down. Servo speed in the
right and left directions for roll control will be normal, unless you have programmed aileron Channel Delay separately.
The Delay function does not affect when the servo starts to respond to control stick movement. The Delay affects only
the transit time of the servo.
1) Press the Navigation Pad 6 to highlight DELAY>0%, then press the
YES/+ or NO/- keys to change the Delay percentage value.
DELAY setting range is 0% to 100%. The default setting is 0%. When
the Delay percentage value is increased, the Slave servo transit time will
be slowed down. At 0%, the Slave servo moves at its normal speed. At
100%, the Slave servo takes approximately 15 seconds to move from
neutral to 100% or -100% travel.
The Delay function will cause the Slave servo transit time to slow down not only from neutral to one End Point, but also on
the return from one End Point to neutral. The Delay percentage value is not Point-dependent.
Compensation Mixing Sample - Mixing Elevator to Flaperons/Spoilerons
The sample below describes how to mix elevator to flaperons using two Compensation Mixers assigned to a single Switch
Position Number. This mix is common for use in 3D aerobatic aircraft where you want both ailerons to move up and down with the
elevator, yet still maintain full roll control. In the example below, the aircraft features two aileron servos and two elevator servos.
1) Assign C-MIX1 and C-MIX2 to the same Switch Position Number in the Switch Assign menu. For example, use Switch
Position Number 23.
2) Verify that the elevator and aileron control surfaces are operating as desired. If necessary, change the servo reversing setting
on one of the elevator servos so that both elevator servos move the same direction.
3) Set the two Compensation Mixing programming values as shown:
C-MIX>1
COMMON>COM
MASTER>LE+
SLAVE>LA
POINT>1 / RATE>-100%
POINT>9 / RATE>100%
In this example, Points 1 and 9 are set to -100% and 100% on C-MIX1, and Points 1 and 9 are set to 100% and -100% on C-MIX2.
When both Compensation Mixers are Active, this results in both aileron servos moving together. When up elevator is commanded,
both ailerons move down (flaperons) and when down elevator is commanded, both ailerons move up (spoilerons). With the
Rate setting at -100% and 100%, both aileron servos will move up and down at the same time the same amount as the elevator
servos. This also results in a Linear channel Curve. If you wanted to lessen the flaperon/spoileron travel, decrease the Rate for
Points 1 and 9.
The positive and negative values shown in the example above may vary based on the NOR/REV status of your aileron and
elevator servos. You may need to change the percentage values to suit.
C-MIX>2
COMMON>COM
MASTER>RE+
SLAVE>RA
POINT>1 / RATE>100%
POINT>9 / RATE>-100%
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The Point 1 and Point 9 Rate percentage values for
C-MIX>2 are opposite those of C-MIX>1. This ensures
that both aileron servos move up and down together.