Originally Posted by
FlightDetent
The TOD and DECEL waypoints are surely there. But Altcrznav wants a fix at 30 NM distance, I suppose in order to put 250 kt and 10000 ft restriction on it. Fair enough.
My experience suggests that the automatic pseudo WPT DECEL of 250 kt at 10000 VNAV altitude is actually further away from the landing than 30 straight miles. Thus the above will force a VNAV alt increase at newly inserted 30 NM fix, which FMS will counter by slowing down way below 250 to keep the energy in check. Not exactly the desired result.
Which is why you monitor the automation and adjust accordingly. That waypoint I add is a merely a check as to where I am on profile.