Version 15.0 AF-5000 Series Pilot Guide 64
Trutrak Autopilots
The AF-Pilot, Sorcerer, Vision and Gemini have the following modes controlled from the buttons on the
face of the autopilot.
[AP] - Autopilot control mode. Pressing the AP button will cause the autopilot to turn on and follow the
current ground track and the current vertical speed of the aircraft. The EFIS settings and controls will not
have any effect on the autopilot. Once the autopilot is controlling the aircraft, pressing the knob button
will select the Track or Vertical Speed fields. Once the cursor is on the desired field the knob to adjust
either the desired track or the desired vertical speed. The Autopilot can be turned off at any time by
pressing the [AP] button or external push-button if have one is installed and connected to the control
wheel steering input line of the autopilot.
[EFIS] - EFIS control mode. Pressing the EFIS button will cause the autopilot to turn on and follow the
current AP/FD settings from the EFIS. The Autopilot can be turned off at any time by pressing the [AP]
button or external button if one is connected to the control wheel steering input line of the autopilot.
Trutrak AP Settings (settings in the Trutrak AP controller)
The following settings are a good starting point for the ADVANCED Pilot autopilot
Lat Activity 5
Lat Torque 12
Bank Angle High
Microactivity 0
GPSS Gain 16
Vert Activity 4
Vert Torque 12
Static Lag 2
Microactivity 0
Half Step N
EFIS AP Settings when using a Trutrak Autopilot
LATERAL EFIS Autopilot Control Settings
ROLL GAIN .05 Range (.01 – 2.0)
The LAT Gain setting controls how fast the aircraft will respond to errors in track or heading. With
too low of a setting the aircraft will hunt slowly and appear slow to respond in roll. With too high of a
setting the aircraft will hunt rapidly, and appear jittery.
LOC GAIN .50 Range (.1 – 3.0)
The Loc Gain setting controls how fast the aircraft will respond to errors in tracking the Localizer.
With too low of a setting the aircraft will hunt slowly and appear slow to respond in roll. With too
high of a setting the aircraft will hunt rapidly, and appear jittery.
VERTICAL EFIS Autopilot Control Settings
ALT GAIN 5.0 Range (.1 – 12.0)
Controls how fast the aircraft will respond to errors in altitude. With too low of a setting the aircraft
will hunt slowly and appear slow to respond in altitude. With too high of a setting the aircraft will
hunt rapidly, overshoot the altitude, and appear jittery.
GS GAIN 3.0 Range (.1 – 10.0)
The Glide Slope gain controls how fast the aircraft will respond to altitude errors on the ILS glide
slope. With too low of a setting the aircraft will hunt slowly and appear slow to respond in altitude.
With too high of a setting the aircraft will hunt rapidly, overshoot the altitude, and appear jittery.
FD GAIN 1.5 Range (.1 – 10.0)
The Flight Director gain controls how fast the Flight Director responds to errors in pitch.
MIN SPD 75 Range (Vs0 - Vne)
The minimum speed that the EFIS will try to command the Autopilot to fly.
MAX SPD 165 Range (Vs0 - Vne)
The maximum speed that the EFIS will try to command the Autopilot to fly.
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