- For every ship in a plane or ships sight range, you gain X amount of exp per X
second(s)

Would require a big coding change, but imo would be a fantastic change to the game if
implemented.

An example would be, say 50 exp per ship every 10 seconds.

Obviously the exp amounts would have to be balanced, it would be far better than
slapping a rule in. If that means lowering general exp, and having this, then so be it.

Edit: Forgot the change about all types of planes.

Edit 2: Edited to include ship sight range