Garmin gns 500w Manuale Utente

58

190-00356-00 Rev E

Vertical Navigation - VNAV

With the profile set, the vertical speed required 

(VSR) is displayed on the vertical navigation page. 
Expect the following to occur when using the vertical 
navigation feature: 

• At one minute prior to reaching the initial descent

point, a message “Approaching VNAV Profile”
occurs. The descent angle will also lock to pre-
vent changes in speed from altering the profile. 

• If selected, the vertical speed required (VSR)

readout on the default NAV and map pages will
show the desired vertical speed to maintain the 
proper descent angle. Maximum VSR that can be
displayed is -6000 ft/min. If VSR exceeds -6000
ft/min, dashes will be displayed. 

• Course reversals are not included in the VNAV

calculations until the aircraft begins the course 
reversal. While reversing course, VNAV includes
direct-to the course reversal wayopint in the 
VNAV calculation.

• At 500 feet above the target altitude, an

“Approaching Target Altitude” message is pro-
vided. The VSR readout on the default NAV and
map pages is blanked out, at this point. 

Vertical navigation messages can be turned on or

off. (By default the messages are off.) Turning the mes-
sages off allows you to keep the profile settings you’ve 
entered previously, without having them generate mes-
sages when the feature isn’t needed. 

1.    Press MENU to display the vertical navigation 

page options menu. 

2.    With “VNAV Messages On?” highlighted, press 

ENT. Or, if the messages are already on and you 
wish to turn them off, make sure “VNAV Mes-
sages Off?” is highlighted and press ENT. 

1.   On  the  Nav VNAV  page,  press  the  MENU 

key. 

2.   Turn  the  large  right  knob  to  highlight 

“Restore Defaults” and then press ENT.