@type t() :: %APM.Message.NavControllerOutput{
  alt_error: Float32,
  aspd_error: Float32,
  nav_bearing: MAVLink.Types.int16_t(),
  nav_pitch: Float32,
  nav_roll: Float32,
  target_bearing: MAVLink.Types.int16_t(),
  wp_dist: MAVLink.Types.uint16_t(),
  xtrack_error: Float32
}