Garmin GTN 625Xi, Pilot'S Manual

Page: 222 / 534

3-80 Pilot’s Guide 190-02327-03 Rev. C
Navigation
Define a VNAV Profile
VS Target and FPA may be unavailable if the selected altitude is set higher than the
Active VNAV Constraint
or
if the aircraft is more than 50 NM from the top of
descent.
ENABLE VNAV GUIDANCE
From the active flight plan:
Home >
Flight Plan > Menu > VNAV > VNAV Enabled .
Tapping
VNAV
again toggles the function off.
Active vertical navigation profile
information displays on the VNAV
Profile page. From here you can:
•
Enable en route vertical
guidance
•
Specify a target vertical speed
and flight path angle
•
View active constraint data
•
Set a default FPA
(in the VNAV Profile menu)
Disabling vertical
navigation:
•
Invalidates required vertical
speed, time to TOD/BOD,
and vertical deviation data
•
Removes vertical deviation
and required vertical speed
indications from the PFD
VNAV automatically re-enables
when you initiate a direct course.