Selected Altitude Capture Mode (Alts) - Garmin G3X Pilot's Manual

AFCS

SELECTED ALTITUDE CAPTURE MODE (ALTS)

Selected Altitude Capture Mode is automatically armed with activation of the
following modes:
• Pitch Hold
• Vertical Speed
• Indicated Airspeed (GMC 305)
• TO/Go Around (GMC 305)
The white 'ALTS' annunciation indicates Selected Altitude Capture Mode is armed.
Press the AP ALT Softkey or ALT Softkey, and turn the FMS Joystick
Selected Altitude (shown above the Altimeter) until Selected Altitude Capture Mode
becomes active.
As the aircraft nears the Selected Altitude, the flight director automatically transitions
to Selected Altitude Capture Mode with Altitude Hold Mode armed. This automatic
transition is indicated by the green 'ALTS' annunciation flashing for up to 10 seconds
and the appearance of the white 'ALTS' annunciation. The Selected Altitude is shown
as the Altitude Reference beside the 'ALTS' annunciation.
Automatic transition to ALTS
Mode with ALT Mode armed
At 50 feet from the Selected Altitude, the flight director automatically transitions
from Selected Altitude Capture to Altitude Hold Mode and holds the reference altitude.
As Altitude Hold Mode becomes active, the white 'ALTS' annunciation moves to the
active vertical mode field and flashes green for 10 seconds to indicate the automatic
transition.
318
Garmin G3X Pilot's Guide
• Vertical Path Tracking (if the
Selected Altitude is to be
captured instead of the VNV
Target Altitude)
to set the
Selected
Altitude
190-01115-00 Rev. K