Other autopilot status information -3 – Dynon Avionics SkyView Pilots Users Guide User Manual

Page 169

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Autopilot Operation

SkyView Pilot’s User Guide - Revision S

8-3

Other Autopilot Status Information

In addition to the modes that are engaged and armed, the Top Bar and the area around it can
communicate other important Autopilot status information.

Pitch Trim Indicator

When the autopilot is flying the aircraft in the pitch axis, a Pitch Trim Indicator can appear. This
indicator alerts you when the pitch servo detects excessive load on the elevator which would
result in an out-of-trim condition when the autopilot is disengaged. To eliminate the excessive
trim forces that the autopilot is trying to overcome, trim the nose of the aircraft in the direction
indicated: up or down. Adjust the trim in small increments and wait a few seconds between
adjustments to see whether the adjustment is sufficient to remove the out-of-trim indication. If
you have roll Auto-Trim configured on the roll axis, the autopilot will automatically apply trim
commands to resolve the out-of-trim condition and the Autopilot engaged arrows will spin up
or down.

Figure 163 - Trim Nose Up Indicator

Pitch Slip Indicator

You may see this during periods of turbulence or if the strength of the servo is not sufficient to
actuate the control surface.

If slipping occurs on the pitch servo, SkyView displays a slip warning as illustrated:

Figure 164 - Pitch Slip Indicator

Reference the SkyView System Installation Guide for more information regarding servo
slippage.

Pitch Slip/Trim Indicator

If prolonged periods of pitch slipping are detected, the condition may be relieved with pitch
trim. SkyView displays a slip indication combined with a trim request. However, Auto-Trim will
not attempt to actuate the trim controllers during a slip.

Figure 165 - Pitch Slip / Trim Nose Up Indicator

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