|When engaged it
will take control of the autopilot for you to determine
whether it needs to climb, maintain altitude, or. The
goal is to reach the altitude assigned to the next
waypoint, or destination airport. All the pilot needs to
do is control the throttle, and if applicable, prop and
The VNAV computer will allow you to set/change the
cruise altitude, altitude at each waypoint, descent and
pattern altitude, and decision height over the runway.
The VNAV computer can follow the flight plan
through the descent and pattern, and then right
down to the runway threshold. All the pilot
needs to do is control the throttle.