6 points
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Touch controls are becoming increasingly common in airplanes and then backed up by mouse cursors. Flight critical controls still need to be backed by physical hardware but stuff like route planning etc is now almost entirely touch based. For light sports aircraft’s even flight critical stuff can be approved as touch controls. Look at the G3X or Dynon SkyView. They both have some form of dial-based backup controls, but it’s clearly designed for touch first.
