Pilot's Guide

Garmin G1000 Pilot’s Guide for the Beechcraft C90A/GT/GTi
190-00663-03 Rev. A
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AUTOMATIC FLIGHT CONTROL SYSTEM
7.4 LATERAL MODES
The following table relates each Garmin AFCS lateral mode to its respective control and annunciation. Refer to
the vertical modes section for information regarding Go Around and Takeoff modes.
Lateral Mode Description Control Annunciation
Maximum Roll
Command Limit
Roll Hold
Holds the current aircraft roll
attitude or rolls the wings level,
depending on the commanded
bank angle
(default) ROL 25°
Low Bank
Limits the maximum commanded
roll angle
BANK
Key
* 15°
Heading Select
Captures and tracks the Selected
Heading
HDG
Key
HDG 25°
Navigation, GPS Arm/Capture/Track
Captures and tracks the selected
navigation source (GPS, VOR,
LOC)
NAV
Key
GPS 30°
Navigation, VOR Enroute Arm/Capture/Track VOR 25°
Navigation, LOC Arm/Capture/Track
(No Glideslope)
LOC 25°
Backcourse Arm/Capture/Track
Captures and tracks a
localizer signal for backcourse
approaches
BC Key BC 25°
Approach, GPS Arm/Capture/Track
Captures and tracks the selected
navigation source (GPS, VOR,
LOC)
APR Key
GPS 30°
Approach, VOR Arm/Capture/Track VAPP 25°
Approach, ILS Arm/Capture/Track
(Glideslope Mode automatically armed)
LOC 25°
Takeoff
Commands a constant pitch
angle and wings level on the
ground in preparation for takeoff
GA
Button
TO Wings Level
Go Around**
Commands a constant pitch
angle and wings level in the air
GA Wings Level
Level
Autopilot engages and
commands wings level
*** LVL Wings Level
* No annunciation appears in the AFCS Status Box. The acceptable bank angle range is indicated in green along the Roll
Scale of the Attitude Indicator.
**When Underspeed Protection is installed, pressing the GA button in the air will not disconnect the autopilot.
*** Level mode can only become activated as a function of Electronic Stability and Protection (ESP). Refer to the Additional
Features section for a detailed discussion of the optional ESP feature.
Table 7-3 Flight Director Lateral Modes
The CWS Button does not change lateral references for Heading Select, Navigation, Backcourse, or Approach
Mode. The autopilot guides the aircraft back to the Selected Heading/Course upon release of the CWS Button.