Roll hold mode (rol), Low bank mode – Garmin G1000 Socata TBM 850 User Manual

Page 408

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Garmin G1000 Pilot’s Guide for the Socata TBM 850

190-00709-00 Rev. A

7-24

AUTOMATIC FLIGHT CONTROL SYSTEM

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 30°

Maintains current aircraft roll attitude

> 30°

Limits bank to 30°

Table 7-4 Roll Hold Mode Responses

Figure 7-24 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 climbing above 25,000 ft
(FL250), and deactivated when descending below 25,000 ft. The annunciator light next to the BANK Key
illuminates while Low Bank Mode is selected.

Figure 7-25 Low Bank Mode Limits

Low Bank Arc

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