Operation Manual
30
This is how you activate the DELTA mixer:
Procedure
Display
GB: D:
1.
Select the DELTA setting in the MIX menu and
switch to the second line
DELTA DELTA
OFF AUS
2.
Activate the DELTA
(example: elevator reversed)
DELTA DELTA
ON AN
3.
Return to the first line
Continue as shown in the flow chart
This is how you adjust the DELTA mixer:
1. Switch the DELTA mixer on (ON))
2. In the SERVO menu set the correct direction of travel for aileron only (see 8.3.1.
Selecting the direction of rotation and servo signal format).
3. If you find that elevator is now reversed, select „ON-“ in the DELTA menu point.
4. Adjust the mixer ratio for elevator and aileron using Dual Rates.
(see 8.2.4. Dual Rates).
Note:
When setting the servo end-points ensure that the travel of both elevons is identical
(see 8.3.2. Adjusting the servo centre and end-points).
8.5.4. Aileron differential for models with two aileron servos
!!
This mixer is primarily required in order to provide the aileron control signal for
two aileron servos
(servos 1 and 5). This basic requirement is met simply by setting
a differential value of at least 1%. If you set the value to 0%, the aileron signal is
output to Servo 1 only!
Within the same mixer you can set differential aileron travel to reduce the travel of
the down-going aileron. The purpose of this is to correct the negative roll moment
(adverse yaw) which can occur with high aspect ratio wings, and which tends to
yaw the model in the opposite direction to the desired turn.
Aileron differential can be set to any value in the range 1% to 100% (100% = no
down-travel = „split“ ailerons). If the plan for your model does not state the recom-
mended aileron differential, a good starting point is about 50% (full up travel, half
down travel). The optimum differential setting can only be found by practical flight
testing.
Note:
If you set differential travel, but find that the up aileron movement is reduced in-
stead of the down travel, change the set value to a negative one.
For example: 50% differential means that the aileron travel in one direction is only
half as great as the travel in the other direction. Naturally this only applies if the
aileron travels are identical in both directions when differential is switched off (see
8.3.2. Adjusting servo centre and end-points).