Just because an aircraft is under the stall doesn't mean it could land. I would like to propose a different system that relies on the following to function:
- length of the longest runway
- takeoff and landing distance of the aircraft
- runway surface type
- airport facilities
Runway length
Aircraft should be able to land and takeoff and still have a certain amount of runway left. This will always be higher than the takeoff and landing distance
Takeoff and landing distance
One of the primary methods used.
Takeoff distance
If the aircraft can takeoff from the airport then it should be able to get jobs from the airport.
Landing distance
If the aircraft can land at the airport then it should be able to get jobs to the airport.
Runway surface type
Would determine if an aircraft could land on a dirt runway or a paved runway at minimum.
Airport facilities
An aircraft like an An-124, if the airport capacity was higher, could operate at Oconee. To counter this realistically, aircraft would require a minimum set of facilities to operate at an airport.
Airport capacity limits would still remain
Further improvement of this idea is appreciated.

