Garmin G1000 King Air C90GT - Manual (Page 437)

190-00663-01 Rev. A Garmin G1000 Pilot’s Guide for the Beechcraft C90A/GT 423
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
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 or switched, 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 25° Maintains current aircraft roll attitude
> 25° Limits bank to 25°
Table 7-4 Roll Hold Mode Responses
Figure 7-23 Roll Hold Mode Annunciation
CHANGING THE ROLL REFERENCE
The roll reference can be changed by pressing the CWS Button, establishing the desired bank angle, then
releasing the CWS Button.
LOW bANk MODE
When in Low Bank Mode, the flight director limits the maximum commanded roll angle to 15 ° . Low bank
arc limits are displayed in green along the Roll Scale.
Low Bank Mode can be manually selected/deselected by pressing the BANK Key while in Heading Select or
Navigation Modes (GPS and VOR). Low Bank Mode is activated automatically above 20,500 feet. The flight
director deactivates Low Bank Mode when descending through 20,500 feet. The annunciator light next to the
BANK Key illuminates while Low Bank Mode is selected.
Figure 7-24 Low Bank Mode Limits