Garmin 496 Manuale Proprietario

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VNAV (Vertical Navigation)
The VNAV sub tab in the Main Menu provides settings for the 
vertical navigation feature. These settings create a three-dimensional 
profile that guides you from your present location and altitude to a 
final (target) altitude at a specified location. 
When the VNAV profile is defined, message alerts help keep you 
informed of your progress. The teal bar on the HSI on the Panel 
Page shows your VNAV profile. 
To use the vertical navigation feature, your ground speed must be 
greater than 35 knots and you must be navigating a Go To or a route. 
The “Approaching VNAV Profile” message appears one minute 
prior to the initial descent point. The descent angle locks to prevent 
changes in speed from altering the profile. The VNAV feature does 
not take into account any changes in groundspeed that occur during 
the transition from level flight to descent or climb. 
At 500 ft above the target altitude, the “Approaching Target 
Altitude” message appears, the time to vertical navigation goes 
blank, and the VNAV indicator disappears from the Panel Page. 
  CAUTION: The GPSMAP 496 is a VFR navigation tool and 
should not be used to perform instrument approaches. VNAV 
is only a VFR navigation aid and is not intended for instrument 
approaches.
VNAV Profile
Glide Ratio to Target
Distance to Target
Distance to Profile
Target Altitude
Airport
Visual representation of VNAV
Using the VNAV Feature
Use the VNAV (Vertical Navigation) feature to ensure that you are 
flying at the proper altitude. The VNAV Indicator appears on the 
HSI (Panel Page) as a horizontal teal bar, as shown in the image on 
the next page. A message appears when you are approaching the 
VNAV Profile. When the bar is in the vertical center of the HSI, you 
are at the proper altitude for the VNAV Profile. Make sure VNAV 
Indicator is On in the options menu. From the Panel Page, press 
MENU to open the options menu. Select Capture VNAV Profile
and press ENTER to center or re-center the VNAV indicator on 
the graphic HSI. You must have entered a valid vertical navigation 
profile and be navigating. 
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GPSMAP 496 Owner's Manual
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