190-02177-02 Rev. A
Garmin G1000 NXi Pilot’s Guide for the Cessna NAV III
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL
FEA
TURES
APPENDICES
INDEX
221
FLIGHT MANAGEMENT
VERTICAL SITUATION DISPLAY (VSD)
A Vertical Situation Display (VSD) can be shown on the bottom of the Navigation Map Page. The terrain,
obstacles, vertical track vector, selected altitude, and active flight plan information (active flight plan information
consists of waypoints, associated altitude constraints, current VNV profile, TOD/BOD, and destination runway)
can be displayed on the VSD, depending on the selected mode. See the Hazard Avoidance section for information
about winds aloft, obstacles, and relative terrain on the VSD.
The VSD horizontal range is equal to the navigation map indicated range when the VSD is in Track mode.
When the VSD is in Flight Plan mode, the horizontal range is the lower of twice the navigation map indicated
range or the lowest range the displays all of the remaining active flight plan. The VSD altitude range automatically
changes when the navigation map range is changed to keep a constant ratio of altitude range to horizontal
range, until both minimum and maximum display limits have been met. At ranges above the maximum, the
altitude range remains constant at the maximum.
The aircraft symbol is displayed on the left side of the VSD. The position of the aircraft symbol on the vertical
scale is close to the top for a descent phase and in the middle for a cruise phase or if the phase is unknown.
If two waypoints are close together, and their labels or constraint values overlap enough to obscure any text,
one waypoint label/constraint value is removed and the vertical dashed line for that waypoint is displayed as
darker gray. The priority for which waypoint remains displayed is: (1) the current TO waypoint, (
2)
waypoint
with an altitude constraint, and (
3)
waypoint closer to the aircraft.
Terrain/obstacles are available on the VSD, and will be shown if the aircraft altitude is low enough for the
terrain/obstacles to be in view (terrain will be shown in gray if the terrain is selected Off on the Navigation Map).
The depicted terrain profile represents an approximate forward-looking contour of the terrain based upon the
highest reported terrain elevations, measured at intervals defined by the terrain database resolution, within a
predefined width along the active flight plan between the aircraft present position and the end of the map range
or active flight plan. The predefined width is determined by the flight phase.
The numeric constraint values are displayed below the waypoint label, using the same color and format as on
the Active Flight Plan Page. Database derived altitude restrictions are shown in white. Any altitude constraint
that has been designated for use in vertical navigation is shown in cyan. The following table shows the numeric
representation and the graphical representation of the constraints. The tip of each constraint symbol triangle is
placed at the corresponding constraint barometric altitude.
Constraint Type
Numeric Representation
Altitude Constraint Icon
AT
(Designated Altitude Constraint)
3OOO
FT
AT or ABOVE
(Un-designated Altitude Constraint
derived from the database)
5OOO
FT
AT or BELOW
(Un-designated Altitude Constraint
derived from the database)
3OOO
FT
Table 5-11 Altitude Constraint Icons
NOTE:
Certain leg types (e.g. holds, heading legs) do not support VNV PATH descents because the lateral distance
of those legs in unknown. The VSD will not show a VNV profile for any legs that have no vertical path guidance.
