Originally Posted by
ecaarch
As posted earlier, any difference in speed is negligible. The difference in scheduled flight times is more a factor of the time-of-day of each flight and DL padding the schedule to accommodate potential ground delays. @:-)
Originally Posted by
RealHJ
But presumably potential ground delays at the same airport pair at around the same time (usually these 3x daily flights are only some 1-3 hours apart for all three of them....
There is a world of difference in the time that DL allots for taxi and take-off for a 6pm JFK departure and for a 9pm JFK departure. Just saying.
The reality is that while you are correct that different a/c are
capable of flying at slightly different speeds, isn't speed in the air lane dictated by the slowest a/c in the lane at that time? (I am NOT a pilot so I am stepping out of my knowledge base here....maybe a pilot with knowledge can chime in.)