Garmin G1000 NXi Pilot's Manual page 361

ALTITUDE HOLD MODE (ALT)
Altitude Hold Mode can be activated by pressing the ALT Key; the flight director maintains the current
aircraft altitude (to the nearest 10 feet) as the Altitude Reference. The flight director' s Altitude Reference,
shown in the AFCS Status Box, is independent of the Selected Altitude, displayed above the Altimeter.
Altitude Hold Mode active is indicated by a green 'ALT' annunciation in the AFCS Status Box.
Altitude Hold Mode is automatically armed when the flight director is in Selected Altitude Capture Mode.
Selected Altitude Capture Mode automatically transitions to Altitude Hold Mode when the altitude error is
less than 50 feet. In this case, the Selected Altitude becomes the flight director' s Altitude Reference.
C
hangIng The
Turning the ALT Knob while in Altitude Hold Mode changes the Selected Altitude, but not the flight
NOTE:
director's Altitude Reference, and does not cancel the mode.
The Altitude Reference (shown in the AFCS Status Box) may be changed by:
• Using the NOSE UP/NOSE DN Keys
• Pressing the CWS Switch, hand-flying the aircraft to attain a new Altitude Reference, then releasing the
CWS Switch at the desired altitude (the new altitude is now the Altitude Reference)
190-02177-00 Rev. A
a r
lTITUDe eferenCe
Command Bars Hold Pitch Attitude
to Maintain Altitude Reference
Figure 7-7 Altitude Hold Mode
Garmin G1000 NXi Pilot's Guide for the Cessna Nav III
AUTOMATIC FLIGHT CONTROL SYSTEM
Altitude Hold Altitude
Mode Active Reference
Selected
Altitude
Selected
Altitude
Bug
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