Originally Posted by shhhpotter
I often have pilots ask me for full length departures, for example from 27L they will use N2W and essentially backtrack to the threshold...this perfectly acceptable in a heavy heavy as I have seen them rotate very close to the end of the rwy.
However, I have had several carriers in "mini" buses ask for full length, subsequently backtrack(as above) and depart...however my problem is that they rotate between S4-S5, this begs the question, why request full length then rotate after such a short distance...this can lose valuable seconds in a departure sequence.
Just performance reasons.The longest the safest.Every meter may be prooved valuable in case of an aborted TO.