Garmin G1000 NXi Pilot’s Guide for the Cessna NAV III
190-02177-02 Rev. A
376
AUTOMATIC FLIGHT CONTROL SYSTEM
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL FEA
TURES
APPENDICES
INDEX
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.
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, 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 condition.
Bank Angle
Flight Director Response
< 6°
Rolls wings level
6 to 22°
Maintains current aircraft roll attitude
> 22°
Limits bank to 22°
Table 7-4 Roll Hold Mode Responses
Figure 7-10 Roll Hold Mode Annunciation
c
hanging
the
r
oll
r
eFerence
The roll reference can be changed by pressing the
CWS
Button, establishing the desired bank angle, then
releasing the
CWS
Button.
HEADING SELECT MODE (HDG)
Heading Select Mode is activated by pressing the
HDG
Key. Heading Select Mode acquires and maintains
the Selected Heading. The Selected Heading is shown by a cyan bug on the HSI.
c
hanging
the
s
electeD
h
eaDing
NOTE:
Pressing the
HDG
Knob synchronizes the Selected Heading to the current heading.
The Selected Heading is adjusted using the
HDG
Knob. Pressing the
CWS
Button and hand-flying
the aircraft does not change the Selected Heading. The autopilot guides the aircraft back to the Selected
Heading upon release of the
CWS
Button.
Turns are commanded in the same direction as Selected Heading Bug movement, even if the bug is turned
more than 180° from the present heading (e.g., a 270° turn to the right). However, Selected Heading
changes of more than 330° at a time result in turn reversals.