Vertical navigation (vnv) indications, Flight instruments – Garmin G1000 Socata TBM 850 User Manual
Page 83
190-00709-00 Rev. A
Garmin G1000 Pilot’s Guide for the Socata TBM 850
2-29
FLIGHT INSTRUMENTS
VERTICAL NAVIGATION (VNV) INDICATIONS
When a VNV flight plan has been activated, VNV indications (VNV Target Altitude, RVSI, VDI) appear on the
PFD in conjunction with the “TOD within 1 minute” message and “Vertical track” voice alert. See the Flight
Management and AFCS sections for details on VNV features. VNV indications are removed from the PFD
according to the criteria listed in Table 2-3.
Required
Vertical
Speed Bug
Vertical
Deviation
Indicator
Enroute
Phase of
Flight
VNV Target
Altitude
GPS is
Selected
Navigation
Source
Top of Descent Message
Figure 2-42 Vertical Navigation Indications (PFD)
Criteria
VNV Indication Removed
Required Vertical
Speed (RVSI)
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 pressed on MFD)
X
X
X
Distance to active waypoint cannot be computed due to
unsupported flight plan leg type (see Flight Management
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 2-3 VNV Indication Removal Criteria