IFD500 Series Pilot Guide
6-40 Navigation
The leg has an associated altitude constraint that is lower
than the aircraft altitude
Lateral deviation from the active leg is less than 2nm
Course deviation from the active leg is less than 45°
The IFD is receiving valid baro corrected altitude
Vertical Direct-to LSK
ENROUTE VNAV INDICATIONS
When enroute VNAV is active, the IFD will suffix the navigation
mode with “+V”, indicating that associated vertical deviations are
being provided.
Enroute VNAV Active “+V” Indication