This Tuesday morning's push numbered 58, woulda been more but 2-3 cancelled. "Black" Tuesday was 59 from memory.
Please be aware however that its not a precise "science" every day is different, route mix, aircraft type mix and the order they "present" all are a factor in how smoothly or otherwise it goes.
Other things that help are:
- advise as early as possible if you cant make your slot... we will try and assign it to another aircraft
- if you haven't got the slot you want, listen out after being assigned your clearance and slot and we will call you if an earlier one becomes available due a u/s whatever
The next step that could add an estimated up to extra 10% efficiency would be to get airlines to avoid planning several flights in a "row" that will fly on the same SID. Eg this morning we had 6 Spudo departures in a row, this is a loss of 6 mins (3 slots) in the hour. Haven't had any luck there, the vagaries of airline ops / customer demands make this difficult to achieve, plus it would require coordination and cooperation between competing operators to be most effective.