Roll Modes; Roll Hold Mode (Rol) - Garmin G1000 Reference Manual

Roll Modes

• Roll Hold (default mode) — Holds the current
aircraft roll attitude or rolls the wings level,
depending on the commanded bank angle
• Heading Select — Captures and tracks the Selected
Heading
• Navigation (GPS, VOR, LOC) — Captures and
tracks the selected navigation source
• Backcourse — Captures and tracks a localizer
signal for backcourse approaches
• Approach (GPSa, VAPP, LOC) — Captures and
tracks the selected navigation source with greater
sensitivity for approach
• Go Around — Commands a constant pitch angle
and wings level while in the air
The following table relates each roll mode to its
respective control and annunciation. Refer to the pitch
modes section for information regarding Go Around and
Takeoff Modes.
Roll Hold
Heading Select
Navigation, GPS Arm/Capture/Track
Navigation, VOR Enroute Arm/Capture/Track
Navigation, LOC Arm/Capture/Track
(No Glideslope)
Backcourse Arm/Capture/Track
Approach, GPS Arm/Capture/Track
Approach, VOR Arm/Capture/Track
Approach, ILS Arm/Capture/Track
(Glideslope Mode automatically armed)
Go Around (in air)
Roll Mode
Table 6-2 Roll Modes
Garmin G1000 Cockpit Reference Guide for the Cessna Nav III
The CWS Button does not change lateral references
for Heading Select, Navigation, Backcourse, or Approach
modes. The autopilot guides the aircraft back to the
Selected Heading/Course upon release of the CWS
Button.

Roll Hold Mode (ROL)

NOTE: If Roll Hold Mode is activated as a result
of a mode reversion, the flight director rolls the
wings level.
When the flight director is activated (the FD or AP Key
is pressed), Roll Hold Mode is selected by default. This
mode is annunciated as 'ROL' in the AFCS Status Box. The
current aircraft bank angle is held, subject to the bank
angle conditions listed in Table 6-3.
Control Annunciation
(default) ROL
HDG Key
HDG
GPS
VOR
NAV Key
LOC
BC Key BC
GPSa
VAPP
APR Key
LOC
GA Switch GA
SECTION 6 – AUTOMATIC
FLIGHT CONTROL
6-17