4-30
GTN 725/750 Pilot’s Guide
190-01007-03 Rev. Q
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Charts
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
4.3.2
Invert Flight Plan
NOTE:
Inverting a flight plan removes all ATKs.
This option allows you to reverse the active flight plan and use it for navigation
guidance back to your original departure point. The original flight plan stored in
the catalog is not affected.
1. While viewing the Active Flight Plan page, touch the
Menu
key. The Flight Plan menu opens.
2. Touch
Invert
.
4.3.3
En Route Vertical Navigation
NOTE:
This feature is available in software v6.50 and later.
The vertical navigation (VNAV) feature provides vertical profile
guidance during the descent phase of flight. Guidance is based on altitude
constraints associated with lateral waypoints in the active flight plan.
Functions:
• Presents vertical path guidance to the descending path as either a line
joining two waypoints with specified altitudes or a linear deviation from the
desired path (i.e., the vertical angle from the specified waypoint or altitude)
• Integrates vertical waypoints into the active flight plan
• Supports both manual and autopilot coupling
4.3.3.1
VNAV Requirements
• Enablement by the installer
• A baro-corrected altitude source
If en route vertical navigation is not enabled, the GTN provides a single
waypoint vertical calculator. For more information, refer to section 15.1.
For installation details related to en route vertical navigation, consult the
AFMS.