Altitude Constraints - Garmin GTN 750 Pilot's Manual Upgrade Supplement

Disabling vertical navigation:
Foreword
• Invalidates required vertical speed, time to Top of Descent (TOD)/Bottom of
Getting
Descent (BOD), and vertical deviation data
Started
• Removes vertical deviation and required vertical speed indications from the
Audio &
PFD
Xpdr Ctrl
Com/Nav
FPL
VNAV automatically re-enables when the pilot initiates a Direct-To.
Direct-To
4.3.3.4
Proc
NOTE: Altitude constraints loaded from the database are jet altitudes.
Some adjustment may be necessary for other types of aircraft. For the
adjustment procedure, refer to the published chart.
Charts
Depending on the specific instance, altitude constraints are either manually
Wpt Info
entered into the Active Flight Plan page, or automatically retrieved from the
published altitudes in the navigation database.
Map
Constraint values display in MSL or flight level (FL). Constraints at airports
Traffic
may be specified as MSL or AGL.
Terrain
Weather
Nearest
Cyan Text with Restriction
Services/
Music
Cyan Text with Snowflake Icon
(Constraint with Temperature
Utilities
System
The system automatically uses altitudes loaded with arrival and approach
Messages
procedures (up to and including the FAF) for computing vertical deviation
guidance. These values, accompanied by an altitude restriction bar(s), display
Symbols
in cyan. The position of the value (above or below the bar, or between two
bars) denotes the required aircraft altitude relative to that constraint. Dual values
Appendix
annunciate when the aircraft needs to cross between two altitudes.
4-32
Index

Altitude Constraints

White Text Only
(No Constraint)
Bar and Pencil Icon
(Modified Constraint)
Compensated)
Figure 4-42 Waypoint Altitude Constraints
GTN 725/750 Pilot's Guide
VS Required,Time to TOD/BOD,
and Vertical Deviation fields
display dashes when VNAV is off
190-01007-03 Rev. Q