Garmin GNC 355 Pilot's Manual page 185

LPV APPROACH
Localizer performance with vertical guidance. Similar to flying the standard ILS
approach.
This segment describes a typical LPV approach sequence and the necessary pilot
actions.
Within 31 nm of destination:
•
Mode switches from En Route to Terminal
•
CDI scale transitions from 2.0 nm to 1.0 nm, full-scale deflection
Approaching initial approach fix:
•
Waypoint message annunciates
•
Time to Turn advisory annunciates and 10 second timer counts down as the
distance approaches zero
Approaching final approach fix:
•
Mode switches from Terminal to LPV
2.0 nm from final approach fix:
•
CDI scaling tightens from 1 nm to the approach-defined angular full-scale
deflection
60 seconds before final approach fix:
•
System verifies GPS position integrity is within approach limits
CDI scale varies when VTF is active.
190-02488-01 Rev. B
Angle
based on
database
2.0 nm
info
FAF
Threshold
Pilot's Guide
Navigation
Landing
3-83