X20/X20S and Ethos v1.2.10 User Manual
of downward travel. In practice the flap servo horns may be offset from neutral by say 20
or 30 degrees.
In this situation the flaps will be half down at servo neutral, which means an offset mix
will be need to bring the flaps up to their neutral position for normal flight.
We have set the Flap weights to -150% for maximum travel. The actual travel may be
configured in the Outputs. (To avoid overdriving servos the initial min/max limits should
be set to something like +/- 30% in the Outputs, and then increased during final setup
while being careful not to overdrive the servos. Please note that for the sake of clarity
this has not been done for this example, they are set to +/- 150%.)
Step 5. Add a 'Flaps Neutral' offset mix
If you have offset your flap servo horns to achieve sufficient downward travel, the flaps
will probably be deflected downwards about 20-30% at servo neutral. We need to add an
offset using a Free Mix to bring the flaps up to the wing neutral position for normal flight.
Add a Free Mix and set the source to Zero. In the current version of Ethos, this mix must
be inserted before any other mixes that act on the flaps channels, so we will add it before
the Flaps mix.
Set the 'Channels count' to 2, and the Outputs to your flaps channels. In this example
the flaps are on channels 6 and 7. (Note that the Orange bars showing the Outputs are
higher than the Mixer values because the Min/Max limits for the Flaps have been set to
+/- 150% in Outputs.)
210
rev 3
Summary of Contents for TANDEM X20
Page 1: ...X20 and Ethos User Manual...
