Altitude Hold Mode (Alt) - Garmin G3X Pilot's Manual

ALTITUDE HOLD MODE (ALT)

Altitude Hold Mode can be activated by pressing the AP ALT Softkey; the
Integrated Autopilot maintains the current aircraft altitude (to the nearest 10
feet) as the Altitude Reference. The Altitude Reference, shown in the G3X
Autopilot 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 G3X Autopilot Status Box.
Altitude Hold Mode is automatically armed when in Selected Altitude
Capture Mode. Selected Altitude Capture Mode automatically transitions to
Altitude Hold Mode when within 50 feet of the Selected Altitude. In this case,
the Selected Altitude becomes the Altitude Reference.
CHANGING THE ALTITUDE REFERENCE
When operating in Altitude Hold Mode, the Altitude Reference can be
adjusted in the following ways:
• The Altitude Reference can be adjusted up or down in 10-foot
increments by pressing the FMS Joystick up or down. Using this
method, up to 200 feet of altitude change can be commanded. To
change the Altitude Reference by more the 200 feet, use the CWS
button (if equipped) as described below, or climb/descend using
another vertical mode (PIT, VS) to capture the desired Selected
Altitude.
• If the aircraft is equipped with a CWS Button, pressing the CWS Button
allows the aircraft to be hand-flown to a new Altitude Reference.
When the CWS Button is released at the desired altitude, the new
altitude is established as the Altitude Reference.
NOTE: While operating in Altitude Hold Mode, using the FMS Joystick to
change the Selected Altitude does NOT affect the autopilot (i.e., does not
change the Altitude Reference, and does not cancel the mode).
190-01115-00 Rev. J
Integrated Autopilot
Garmin G3X Pilot's Guide
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