Originally Posted by
Shed-on-a-Pole
I pointed out that even if full night-flying could not be approved, relaxation of rules for compliant types would yield many additional slots which could be allocated to priority long-haul routes.
That's happens anyway.
Four A380 landings consume the same noise quota as a single arriving 747-400. Similarly a 777-300ER uses 4 times as many quota points as a 787. And the GTF-powered A320neo isn't subject to any night noise restrictions at all.