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2 - NAV PAGES
58
190-00356-00 Rev B
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) read-
out on the default NAV and map pages will show
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.
• 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 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 Messages Off?” is highlighted and
press
ENT
.
To restore the factory default VNAV settings:
1. On the Nav VNAV page, press the
MENU
key.
2. Turn the
large right
knob to highlight
“Restore Defaults” and then press
ENT
.
Summary of Contents for GNC 420AW
Page 1: ...Pilot s Guide Reference 400W Series ...
Page 10: ...INTRODUCTION viii 190 00356 00 Rev B Blank Page ...
Page 70: ...2 NAV PAGES 60 190 00356 00 Rev B Blank Page ...
Page 90: ...4 FLIGHT PLANS 80 190 00356 00 Rev B Active Flight Plan Shortcuts Blank Page ...
Page 154: ...7 NRST PAGES 144 190 00356 00 Rev B Nearest Airspaces Blank Page ...
Page 186: ...10 FDE 176 190 00356 00 Rev B Blank Page ...
Page 213: ......