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Limitations and Performance
6-2
PERFORMANCE IN PITCH TRIM-ONLY AIRCRAFT
As noted earlier, all modes and behaviors described in this
manual work both in aircraft with pitch servos and those without
(pitch trim-only) with the exception of the reaction to manual
electric trim inputs. However, aircraft equipped with pitch trim only
(no pitch servo) should expect a less precise and, depending on
the environmental and aircraft dynamic conditions, a slower
reaction time in the vertical axis when experiencing vertical
turbulence or other inputs like flap deployment/retraction, IAS
mode tracking and unusual attitude recoveries using the Straight
and Level button.
PERFORMANCE IN NON-CIRRUS AIRCRAFT
It is highly recommended that a pilot avoid making flight control
inputs while in coupled autopilot mode operations aside from
minor rudder input to maintain coordinated flight. Moderate
rudder or any roll input may result in an inability of the DFC90
autopilot to track the commanded targets.
Change 3
6-6 Limitations and Performance