Blue and Purple Airport

What is the difference between blue and purple airports in Infinite Flight. Just curious.

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Blue means that the airport is larger. Purple is smaller. I am sure there is much more to that but I do not know/understand the technical goodies behind the coloring.

Sorry I can only give a superficial answer.

Long live the DC-9!

Thanks. I have always been curious.

Blue airports have ATC facilities. Purple airports are uncontrolled ones (no tower/ground etc, so you can only use Unicom to communicate).

To clarify - in solo, it makes little practical difference, and serves more as an annotation, to reflect the physical world. Same goes if you’re flying in the ATC-Playground server. However in the Advanced ATC server, these are the only airports that will be staffed by controllers.

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well said Alexei…

http://www.faa.gov/air_traffic/flight_info/aeronav/digital_products/aero_guide/#airports

http://www.faa.gov/air_traffic/flight_info/aeronav/digital_products/aero_guide/#airports