Garmin G3X Pilots Guide - Page 105

System Overview Flight Instruments Flight Instruments One minute prior to the initial descent point the "Approaching VNAV Profile" message appears and the 'Estimated Time to VNAV' (on Active Flight Plan Page) goes blank. The descent angle locks to prevent changes in speed from altering the profile. The VNAV feature does not take into account any changes in ground speed that occur during the transition from level flight to descent or climb. At 200 ft above the target altitude, the "Approaching Target Altitude" message appears, and the VNAV indicator disappears from the PFD. EIS CNS Interface GPS Navigation Flight Planning VNAV Profile Hazard Avoidance Additional Features Integrated Autopilot Annun/Alerts Distance to Profile Glide Ratio to Target Distance to Target Target Altitude Airport Visual Representation of VNAV USING THE VNAV FEATURE Use the VNAV (Vertical Navigation) feature to ensure the aircraft is at the proper altitude. The magenta VNAV Indicator appears on the PFD. A message appears when approaching the VNAV Profile. When the VNAV Indicator is in the vertical center of the Vertical Deviation Scale, the aircraft is at the proper altitude for the VNAV Profile. 190-01115-00 Rev. F Garmin G3X Pilot's Guide 87 Appendix Index