Changes to base airports feature

[Sami]

Some major changes are planned to be implemented to the base airports feature before the next game world begins. The aim is to lift some restrictions in order to give players more space to grow and to allow small airlines to expand more easily.

Please see the draft at the features forum, and comment also there: https://www.airwaysim.com/forum/index.php/topic,51089.msg307908.html#msg307908


(this would not affect any current games)