This video tutorial covers the FMA annunciations of VNAV ALT and VNAV PTH and what the difference is between the two and under what conditions you will see them displayed.
Subsonic Flight Training (SSFT)
Training Tips For The Flight Simmer
This video tutorial covers the FMA annunciations of VNAV ALT and VNAV PTH and what the difference is between the two and under what conditions you will see them displayed.