In Norway the 2 biggest operators (mostly B73x) have agreed to use 260KIAS during descend. If they for some reason use a different speed they are supposed to advise ATC which they ofcourse seldom do.
A B73x will use about 1kg extra fuel per knot from ToD to FL100(compared to 250KIAS), and unless needed for sequencing or requested by the crew I think ATC should not plan for everyone descending at 270+knots.
Why burn extra fuel going fast nowhere? If you know they'll have to hold why do you expect 270-300 knots?
Last edited by PointMergeArrival; 1st Jul 2012 at 18:53.