4-29
190-01004-03 Rev. P
GTN 625/635/650 Pilot’s Guide
FPL
The altitude restriction from the database displays when the following three
conditions are present.
1. A pilot-specified altitude constraint is deleted
2. Navigation database contains an altitude restriction for the lateral waypoint
3. A predicted altitude is not available
Once added to the flight plan, an altitude constraint may be modified or
deleted using the controls in the VNAV Options menu. Select a value in the ALT
column to display available options.
Selection
Function
Type
• Opens a list of available constraint types
• Options: At, At or Above, At or Below, and Between
Altitude
Data Entry
• Opens a keypad. Specify an altitude value for the selected
constraint type
• Unit options: MSL, AGL, and Flight Level
Revert
Constraint
• Returns a modified altitude constraint to its original published
value
Remove
Constraint
• Removes the VNAV designation from the altitude
• Value remains displayed for reference purposes. It is no longer
used to compute vertical guidance
• Removing the VNAV designation from an altitude may
invalidate other displayed altitudes or cause them to change
after recalculation
Table 4-2 Altitude Constraint Options
Содержание GTN 625
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