User guide

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Autopilot / Flight Director Control Settings
[EFIS] -> [AP/FD] -> [Settings]
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.
<-VSPD-> 500 FPM Range (0 – 2000FPM)
The vertical climb speed that the aircraft will use to change altitudes can be selected from the
<-VSPD-> knob selection. The current setting is shown on the vertical speed tape as two small
Cyan triangles. If the current setting will cause the aircraft to fly below the MIN SPD in climb the
triangles will adjust the vertical speed so that the MIN airspeed is maintained. If the vertical
climb speed is being limited by the Minimum airspeed setting the triangle will change color to
orange.
AP/FD Lateral Modes
LAT HDG Aircraft will follow the Yellow heading bug on the HSI
LAT NAV Aircraft will usually follow the current CDI needle on the HSI. If the EFIS is detecting
valid GPSS commands from the currently selected Nav source those commands will be
used for the autopilot control. This will enable the autopilot to follow the turn anticipation
and holds from a GPS navigator.