X20/X20S and Ethos v1.5.0 User Manual
Model Setup
The ‘Model setup’ menu is used to configure each model’s specific setup. It is accessed by
selecting the Airplane tab along the bottom of the Home screen. Conversely, settings that are
common to all models are performed in the System menu, which is accessed by selecting the
Gear tab instead (please refer to the System section).
Overview
Model select
The ‘Model select’ option is used to create, select, add, clone, or delete models. It is also
used to create and manage user specific model category folders.
Edit model
The ‘Edit model’ option is used to edit the basic parameters for the model as set up by the
wizard, and is mainly used to edit the model name or picture. It is also used to configure
the function switches, which are model specific.
Flight modes
Flight modes allow models to be set up for switch selectable specific tasks or flight
behaviour. For example, gliders may be set up to have flight modes such as Launch, Cruise,
Speed and Thermal. Power planes may have flight modes for Normal flying, Take Off and
Landing. Helicopters have modes such as Normal for spool up and take off/landing, Idle Up
1 for aerobatic flying, and Idle Up 2 for perhaps 3D.
Mixes
The Mixes section is where the model’s control functions are configured. It allows any of the
many sources of input to be combined as desired and mapped to any of the output
channels.
This section also allows the source to be conditioned by defining weights/rates and offsets,
adding curves (eg Expo). The mix can be made subject to a switch and/or flight modes, and
a slow function to be added.
Outputs
The Outputs section is the interface between the setup "logic" and the real world with
servos, linkages and control surfaces as well as actuators and transducers. In the Mixes we
have set up what we want our different controls to do. This section allows these pure logical
outputs to be adapted to the mechanical characteristics of the model. This is where we
configure minimum and maximum throws, servo or channel reverse, and adjust the servo or
channel center point using the PPM center adjustment, or add an offset using subtrim. We
can also define a curve to correct any real world response issues. For example, a curve can
be used to ensure that left and right flaps track accurately.
Timers
The Timers section is used to configure the three available timers.
Trims
The Trims section allows you to configure the ‘Trim mode’, disable trims, or enable
extended trims or independent trims for each of the 4 control sticks.
The ‘Trim mode’ configures the granularity of the trim switch steps, from Fine to Coarse to
Exponential to Custom, or to disable trims. The normal trims range is +/- 25%, but
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