Do you see conflicts further down the road due to the heavy's slower rate of climb/longer @250KTS compared with the likes of 73/320's?
Do the med jets overtake the heavy's due to reaching FL100 therefore accellerating sooner?
I just wondered as last week ex LHR departed about 5 min after a 744 and was surprised when he came up on one of the midlevel freq's after me,( knowing that the freq's are based on levels and the heavy's take longer to reach due weight)
in the past they still used to be there before me.