Originally Posted by
NEDude
The problem is that seldom do pilots plan their own descents these days.
That's an interesting point...
Far too many pilots (IMO), when given a crossing restriction 75-100nm down the road, will immediately spin 1000-1500fpm down and start the descent...when any airplane equipped with advisory VNAV could just as easily have the descent angle set at 3.5-4.5 degrees and follow the snowflake down for fuel savings.