Ethos v1.5.7 and X18, X20 series User Manual
Aileron, Elevator, Rudder
Please refer to the detailed Aileron Elevator Rudder mixes description above.
Flaps
The Flaps mix will mix an Input to one or more channels with individual Weights. It
also offers Slow Up and Slow Down options.
Throttle
The Throttle mix is for motor control and includes Throttle Cut and Throttle Hold
options. Please refer to the detailed Throttle Mix discussion above.
Aileron to Flap
This mix is commonly used on sailplanes so that the flaps move together with the
ailerons to increase the model’s aileron response.
Aileron to Rudder
This mix is commonly used to reduce sideslipping in turns. However, this mix will only
be right at one particular airspeed and orientation. It is better to learn to correct the
sideslipping with manual control of the rudder.
Airbrake
The Airbrake mix is similar to the Butterfly mix below, except that it is controlled by an
on-off active condition.
Butterfly
Butterfly or crow braking is used to control the rate of descent of an aircraft. The
ailerons are set to go up a modest amount, while the flaps go down a large amount.
This combination creates a lot of drag, and is very effective for braking and therefore
ideal for controlling the landing approach. The input is normally set to a slider (or the
throttle stick on a glider).
Compensation is also needed on the elevator to avoid the glider ballooning up when
crow is applied.
Please note that the mix has a built-in offset so that the mix output is zero at the flaps
neutral position, i.e. when the throttle stick (or alternate source) is at its low position,
and at maximum at the flaps fully deployed position, i.e. the throttle stick (or
alternate source) high position. This offset is disabled when a user curve is added to
give that curve full control.
Camber
The Camber is usually used to apply some camber to the wing surfaces to increase lift.
Flap to Elevator
The Flap to Elevator mix is useful for flap/camber/crow compensation, where a custom
compensation curve is required.
Elevator to Camber
Also known as Snap Flap, this mix adds camber to the wing as elevator is applied. This
allows the wing to generate lift more efficiently when the plane is given pitch
commands.
Rudder to Aileron
This mix may be used to counter rudder-induced yaw.
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