Database Updates - Garmin 500W Series Pilot's Manual & Reference

8. The default profile utlzes a 400 foot-per-
mnute descent rate. To change the rate, turn
the large right knob to hghlght the "VS
Profile" field and use the small and large
right knobs to enter a new rate. Press ENT
when finshed.
The default profile is a 400 foot-per-minute
descent. Use the small and large right knobs
to enter a different vertical speed figure.
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 also locks
to prevent changes in speed from altering the
profile.
• If selected, the vertical speed required (VSR)
readout on the default NAV and map pages
shows the desired vertical speed to maintain the
proper descent angle.
• 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.
190-00357-00_0B 500W Pilot Guide189 189
• 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.
To disable/enable the vertical navigation (VNAV)
messages:
1. Press MENU to dsplay the Vertcal Navgaton
Page Optons menu.
2. Wth "VNAV Messages On?" hghlghted, press
ENT. Or, f the messages are already on and
you wsh to turn them off, make sure "VNAV
Messages Off?" s hghlghted and press
ENT.
Select "VNAV Messages On?" to display the
vertical navigation alert message.
To restore the factory default VNAV settings:
1. Press MENU to dsplay the Vertcal Navgaton
Page Optons menu.
2. Turn the large right knob to hghlght
"Restore Defaults?" and press ENT.
190-00357-00 Rev B
10 - VNAV
VNAV Messages
189
9/7/2007 3:11:06 PM