Garmin G900X Pilot's Manual - page 85
190-00726-00 Rev. A
Garmin G900X Pilot’s Guide
2-25
FLIGHT INSTRUMENTS
VERTICAL NAVIGATION (VNV) INDICATIONS
When a VNV flight plan has been activated, VNV indications (VNV Target Altitude, RSVI, VDI) appear on
the PFD in conjunction with the “TOD within 1 minute” message and “Vertical track” voice alert. See the GPS
Navigation section for details on VNV features. VNV indications are removed from the PFD according to the
criteria listed in Table 2-2.
Figure 2-35 Vertical Navigation Indications (PFD)
Top of Descent Message
VNV Target
Altitude
Vertical Deviation
Indicator
Required Vertical
Speed Bug
GPS is Selected
Navigation Source
Enroute Phase
of Flight
Criteria
VNV Indication Removed
Required Vertical
Speed (RSVI)
Vertical
Deviation (VDI)
VNV Target
Altitude
Aircraft > 1 min before the next TOD and not on a descent leg
X
X
X
Aircraft > 1 min before the next TOD due to flight plan change
X
X
X
VNV cancelled (
CNCL VNV
Softkey selected on MFD)
X
X
X
Distance to active waypoint cannot be computed due to
unsupported flight plan leg type (see GPS Navigation Section)
X
X
X
Aircraft > 250 feet below active VNV Target Altitude
X
X
X
Current crosstrack or track angle error has exceeded limit
X
X
X
Active altitude-constrained waypoint can not be reached within
maximum allowed flight path angle and vertical speed
X
X
Last altitude-constrained waypoint in active flight plan reached
X
X
(30 sec before)
X
Table 2-2 VNV Indication Removal Criteria