"Marco Leon" mleon(at)optonline.net wrote:

It depends on how granular you want to get. Yes, ATC is still handling an
Archer on a 4-hour flight under IFR for 4 hours but the personnel needed
to handle that flight as opposed to an airliner would be smaller. For
example,
how many Centers would the airliner need to service them as opposed to
the Archer?

Does that matter? I'd think that "cost" would be measured in
controller-hours. Whether it is one controller for four hours or twently
controllers for twelve minutes each, the cost would be the same.

No?

- Andrew