Version 15.0 AF-5000 Series Pilot Guide 56
If the AP is slow to respond to the TRK changes, increase the ROLL AXIS SENTIVITY and watch for
improvement. In some cases this may require a fair amount of increase, but be cautious about changing it
too quickly. Sensitivity adjustments alone may not completely eliminate overshoot. If increasing
sensitivity no longer improves performance, ROLL GAIN may be used to fine tune the roll axis. Too much
sensitivity may cause AP responses to be “twitchy”. Reduce ROLL SENSITIVITY if this occurs. Too
much ROLL GAIN will result in a rough ride.
In particular, if the autopilot cannot keep up with the flight director roll command bar, ROLL SENSITIVITY
should be increased. At some point the AP will track the command bars, but follow behind them. ROLL
GAIN will reduce the gap.
Caution: Large changes in ROLL SENSITIVITY with the autopilot engaged can result in large servo
movements
Roll Axis – TRK and Turns Procedure
BANK ANGLE LIMIT
After Roll Axis tuning is complete, BANK ANGLE LIMIT should be set to a value that results in a bank
angle in AP that is comfortable for your plane and your preferences. A place to start is to set BANK
ANGLE LIMIT to a value that yields a standard rate turn at typical cruise speed.
The default BANK ANGLE LIMIT is 30°.
The SV AP will always obey BANK ANGLE LIMIT. However, if BANK ANGLE LIMIT is set too low (such
as 5°), the SV AP will be unable to turn.
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