Originally Posted by
speedrestriction
If there is a move against smaller airframes it will merely be to push more passengers through the airport.
I thought that was the unstated reason as to why Gatwick changed their charging structure - namely increase the number of pax that pass through the airport per take-off/landing slot. If an airport can't magic up some more slots, the value of slots accrues to airlines not the airport, and pax are being milked as hard as possible on parking and shops, then this is an obvious way to increase profits for the airport...